Cisco Systems Mgx 8230 Installation And Configuration Guide

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Cisco MGX 8230 Edge Concentrator
Installation and Configuration
Release 1.1.31
May 2001

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Text Part Number: 78-11215-03 Rev. B0

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Cisco MGX 8230 Edge Concentrator Installation and Configuration
Copyright © 2001, Cisco Systems, Inc.
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Part Number: 78-11215-03 Rev. B0

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C O N T E N T S

Preface

xxi

Audience

xxi

Organization

xxi

Related Documentation xxii
MGX 8230 Edge Concentrator, Release 1.0 Related Documentation xxii
Cisco WAN Manager, Release 10, Related Documentation xxiii
Cisco WAN Switching Software, Release 9.3 Related Documentation xxiii
Conventions

xxiv

Obtaining Documentation xxv
World Wide Web xxv
Documentation CD-ROM xxv
Ordering Documentation xxv
Documentation Feedback xxvi
Obtaining Technical Assistance xxvi
Cisco.com xxvi
Technical Assistance Center xxvii
Contacting TAC by Using the Cisco TAC Website
Contacting TAC by Telephone xxvii

CHA PTER

Introducing the MGX 8230

xxvii

1-1

MGX 8230 System Overview 1-2
The Applications of the MGX 8230 1-3
As a feeder 1-3
As a Stand-Alone Switch 1-3
Multiprotocol Label Switching (MPLS) 1-3
Consolidation of Cisco CPE Traffic 1-3
Multiservice Stand-alone Concentrator 1-3
Universal Edge Architecture 1-3
Standards-Based Conversion to ATM 1-4
MGX 8230 Enclosure and Power 1-4
Slot Numbering and Placement 1-4
Single Height and Double Height Slots 1-5
MGX 8230 Power System 1-6
Optional AC Power Supply 1-6

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

DC-Powered MGX 8230 1-7
Cooling System 1-8
MGX 8230 Architecture 1-9
Cell Bus 1-10
MGX 8230 Management 1-11
Summary of MGX 8230 Cards and Modules 1-12
Introduction to Core Card Sets and Service Modules
Processor Switching Module (PXM1) 1-12
User Interface Back Cards 1-13
Service Resource Module (SRM) 1-14
Frame Relay Service Modules (FRSM) 1-14
ATM UNI Service Modules (AUSM) 1-14
Circuit Emulation Service Modules (CESM) 1-15
Voice Service Modules (VISM) 1-15
Route Processor Module (RPM) 1-15
Redundancy for Service Modules 1-16
1:1 Redundancy 1-16
Hot Standby 1-16
1:N Redundancy 1-16

CHA PTER

Module and Service Descriptions

1-12

2-1

Processor Switching Module 2-1
PXM1 Features 2-2
PXM1 Illustration and LED Description 2-2
PXM1 User Interface Back Cards 2-3
PXM1-UI (standard) 2-3
PXM-UI-S3 (optional) 2-4
Making External Clock Connections 2-4
Stratum 4 clocking 2-4
Stratum 3 clocking 2-4
PXM1 Back Cards 2-5
PXM1 User Interface Back Cards 2-5
SMFLR-1-622 Back Card 2-7
SMFIR-1-622 Back Card 2-8
SMF-155 Back Card 2-9
BNC-2T3 Back Card 2-10
BNC-2E3 Back Card 2-11
Service Resource Module
Bit Error Rate Testing

2-12
2-12

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

1:N Service Module Redundancy 2-12
Bulk Distribution Mode 2-12
Module Requirements with Bulk Distribution and Redundancy
Installation Requirements for the MGX-SRM-3T3/C 2-13
SRM Illustration and LED Indicators 2-13
ATM UNI Service Module (AUSM) 2-15
AUSM Features 2-15
Quality of Service (QoS) Management 2-15
Inverse Multiplexing 2-15
Physical Layer Features 2-16
AUSM Front Card Illustration and LED Description
Back Cards for the AUSM/B 2-18

2-13

2-17

Frame Relay Service Modules 2-20
Features Common to All FRSMs 2-20
Data-Link Layer features 2-20
Frame Relay features 2-20
ATM FUNI features 2-21
Frame Forwarding Features 2-21
Redundancy for Frame Service Modules 2-22
Hot Standby 2-22
1:1 Redundancy 2-22
1:N Redundancy 2-22
Connection Types on the FRSM 2-22
Frame Relay-to-ATM Network Interworking 2-23
Frame Relay-to-ATM Service Interworking 2-24
Frame Forwarding 2-26
ATM Frame-to-User Network Interface 2-26
Types of Frame Service Modules 2-27
FRSMs for T1 and E1 Lines 2-27
FRSMs for T3 and E3 lines 2-32
FRSMs for Serial Connections 2-38
Circuit Emulation Service Modules 2-45
CESM for T1 and E1 lines 2-45
CESM T1 and E1 Features 2-45
CESM for T3 and E3 lines 2-50
Voice Service: The VISM 2-55
VISM Documentation 2-55
Summary of Features Supported with VISM 2.0.1 2-55
VISM Redundancy 2-57
Card Combinations 2-57
Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

vii

Contents

VISM Card Illustrations and LED Description
Route Processor Module (RPM) 2-61
RPM Documentation 2-61

CHA PTER

Site Preparation

2-58

3-1

Parts Checklist
Site Preparation

3-1
3-1

Regulatory Compliance and Safety Information
Safety Recommendations 3-3
Maintaining Safety with Electricity 3-3
Warning Definition 3-4
Product Disposal Warning 3-5
Lightning Activity Warning 3-7
Jewelry Removal Warning 3-8
Power Supply Warning 3-9
Power Supply Disconnection Warning
Power Disconnection Warning 3-11
Grounded Equipment Warning 3-12
Installation Warning 3-12
Class 1 Laser Product Warning 3-13
Laser Beam Warning 3-13
Seismic Considerations

3-3

3-10

3-14

Seismic Anchoring for a Cisco Rack

3-14

Power and Grounding 3-17
AC Power Circuit Breakers 3-17
DC Power Circuit Breakers 3-17
Electrical Power for AC-Powered Nodes 3-17
Electrical Power for a DC-Powered MGX 8230 3-17
Bonding and Grounding 3-18
Wiring a Mixed Ground System with Redundant Supplies 3-18
Conductor Characteristics for Carrying Current and Ensuring Low Voltage Drops
Using the Electrostatic Wrist Strap 3-21
Co-Locating Cisco Units in the Same Rack 3-21
Making the Frame Bonding (Ground) Connection 3-21
Making Cisco Cabinet Ground Connections 3-22

CHA PTER

Enclosure Installation
Chapter Summary

3-20

4-1
4-1

Cisco MGX 8230 Edge Concentrator Installation and Configuration

viii

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

Mechanical Lift Guidelines

4-1

Installing a Stand-Alone MGX 8230

4-2

Rack Mounting an MGX 8230 4-2
Prepare for Rack Installation 4-3
Rack Positioning 4-3
Bracket Placement 4-3
Mounting Kits 4-4
Install the MGX 8230 Using a Mechanical Lift (Recommended) 4-6
Rack Mounting Procedures for 19-Inch Racks (Mechanical Lift) 4-6
Rack Mounting Procedures for 23-Inch Racks (Mechanical Lift) 4-6
Install the MGX 8230 Without a Mechanical Lift (Optional) 4-7
Prepare for Installation 4-7
Remove the Front Cards 4-7
Remove the Back Cards 4-8
Rack Mount the MGX 8230 chassis 4-8
Re-install the front cards 4-10
Re-install the back cards 4-10
Connecting Power for DC Systems 4-11
Connecting Power for AC Systems 4-14
Installing AC Power Supply Modules in the AC Power Supply Tray (optional)
Making the Connections to the AC Power Supply Module(s) 4-15
Install the Cable Manager 4-17
Power up the MGX 8230 4-18

CHA PTER

Configuring the MGX 8230 Shelf
Summary of Shelf-Level Tasks

4-15

5-1
5-1

User Interface Access Ports 5-2
Control Port 5-2
Ethernet Port 5-2
Maintenance Port 5-3
Other Ports 5-3
IP-Based Applications 5-3
MGX 8230 MGX to BPX Feeder 5-3
Initial MGX 8230 Bring-Up 5-3
Bringing Up an MGX 8230 PXM With No Run-time Firmware
Configuring Node-Level Parameters 5-6
Resource Partitioning 5-6
Downloading Firmware to a Service Module 5-9
MGX 8230 CLI Configuration of a Feeder 5-10

5-4

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

Configuring the OC-3 Uplink 5-10
Establishing the BPX 8600-to-BPX 8600 Series Segment
CiscoView Configuration of a Feeder 5-13
Selecting an MGX 8230 5-13
Specifying the Feeder Application 5-14
Activating a Physical Line for the Uplink 5-14
Configuring Logical Interfaces for the Feeder 5-15
Configuring the Line as a Feeder Trunk 5-16

CHA PTER

Card and Service Configuration
Connections on a Feeder

5-12

6-1

Modifying the Resource Partitioning
Sequence of Configuration Tasks

6-1
6-2

Rules for Adding Connections 6-2
Rules for Adding a DAX Connection 6-2
Rules for Adding Three-Segment Connections

6-3

The Processor Switching Module 6-5
Configuring Synchronization for the Shelf 6-5
Clock Sources 6-5
Clock Source Types 6-6
Clock Source Configuration 6-6
Configuration Example 6-6
Configuring PXM1 Card-Level Parameters, Lines, and Ports 6-7
Automatic Protection Switching on the PXM1 6-9
APS Requirements 6-9
APS Configuration 6-9
Adding Connections on a PXM1 in a Stand-Alone Node 6-10
ATM Universal Service Module (AUSM) 6-14
Summary of AUSM Features 6-14
Configure the Card, Lines, and Ports 6-15
Configure Inverse Multiplexing 6-17
Adding and Configuring Connections on the AUSM/B
BPX 8600-to-BPX 8600 Segment 6-23
Frame Service Module Features 6-23
Summary of Frame Service Module Features
MGX-FRSM-2CT3 Features 6-25
MGX-FRSM-2T3E3 Features 6-25
MGX-FRSM-HS2 Features 6-26
MGX-FRSM-HS1/B Features 6-26

6-17

6-24

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

Eight-Port FRSM Features

6-27

Configuring Frame Relay Service 6-27
Configuring the FRSM Cards, Lines, and Ports 6-28
Adding a Frame Relay Connection 6-31
Establishing the BPX 8600-to-BPX 8600 Series Segment 6-36
Test Commands for the FRSMs 6-36
Support for Alarm Reporting 6-37
Bit Error Rate Testing on an Unchannelized T3 or E3 FRSM 6-37
Circuit Emulation Service Module for T3 and E3 6-38
Features 6-38
Cell Delay Treatment 6-38
Error and Alarm Response 6-39
Configuring Service on a T3 or E3 CESM 6-39
Configuring the Card, Lines, and Ports 6-40
Adding and Modifying Connections 6-40
Bit Error Rate Testing on a T3 or E3 CESM 6-42
Eight-Port Circuit Emulation Service Modules 6-42
Structured Data Transfer 6-43
Unstructured Data Transfer 6-43
Cell Delay Treatment 6-44
Redundancy Support for the Eight-Port CESM 6-44
Error and Alarm Response 6-44
Configuring Service on an Eight-Port CESM 6-45
Configuring the Card, Lines, and Ports 6-45
Configuring Bulk Distribution and Redundancy 6-46
Adding and Modifying Connections 6-47
Service Resource Module 6-49
Configuring Card and Line Parameters 6-49
Bulk Distribution for T1 Service 6-50
Redundancy Support by the MGX-SRM-3T3/C 6-51
Configuring Redundancy Through the Redundancy Bus 6-51
Configuring Redundancy Through the Distribution Bus 6-52
Bit Error Rate Testing Through an MGX-SRM-3T3 6-53
Pattern Test Options 6-55
Loopback Test Options 6-56
Online Diagnostics test 6-56
Automatic Switchover
Alarms 6-56
Log Files 6-57

6-56

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

Commands to Operate the Online Diagnostics

6-57

DS3 Loopback Test 6-58
Loopback Tests 6-58
Configure Loopback on the Entire DS3 Line 6-58
Configure Loopback on All DS1s in a DS3 Line 6-59
Receive a Loopback Request 6-59
Configure Transmit FEAC Code 6-60
Configure DS3 for Sending Looped or Normal Data 6-60
Configure DS3 to Send Line Loopback 6-60
Configure DS3 for Sending Loopback Deactivation Request 6-61
Configure Receive Validation FEAC Code 6-61
Configuring FEAC Validation Criteria to be FEACCodes4Of5 6-61
Configure FEAC Validation Criteria to be FEACCodes8Of10 6-62
Negative Tests 6-62
Disable FEAC Codes 6-62
Configure DS3 Loopback Codes from the Standby PXM1 Card 6-63

APPENDIX

Technical Specifications

A-1

MGX 8230 Enclosure, Power, and Performance Specifications
MGX 8230 Processor Switching Module Specifications
AUSM/B-8T1E1 Interface Characteristics

A-1

A-3

A-6

FRSM-2CT3 Specifications A-9
FRSM-2CT3 Framer A-10
FRSM-2CT3 Line Alarms A-10
FRSM-2T3E3 Specifications A-10
FRSM-2T3E3 T3 Line A-11
T3 Framer Level A-11
FRSM-2T3E3 E3 Line A-12
E3 Framer Level A-12
FRSM-2T3E3 Line Alarms A-12
Statistics and Counter Specifications
FRSM-HS2 Specifications

A-12

Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2

A-14

FRSM-HS1/B X.21 A-16
Interfaces A-16
FRSM-8T1 Specification

A-17

FRSM-8E1 Specification

A-20

Circuit Emulation Service Module for T1 Operation

A-24

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xii

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Contents

Circuit Emulation Service Module for E1 Operation
Physical and Electrical Characteristics for Cards
Electromagnetic Compatibility
Conformance A-28
ATM UNI A-28
SONET/SDH A-29
Frame Relay A-29
Circuit Emulations Service
Safety A-30
Environmental A-30

APPENDIX

Cable Specifications
T3 Trunk Cabling

A-25
A-27

A-27

A-29

B-1
B-1

Frame Relay Cabling B-2
T1 Cabling B-2
E1 Cabling B-3
SMB Connector B-3
12IN1-S4 V.35/X.21 Back Card
HSSI Port Connectors B-5
DC Power Cabling

B-6

AC Power Cabling

B-7

B-4

Control and Clock Cabling B-7
Maintenance and Control Ports B-7
External Clock Input Cabling B-8
T1 Clock Cabling B-8
External Alarm Cabling

B-8

GLOSSARY

INDEX

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xiii

Contents

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xiv

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

F I G U R E S

Figure 1-1

MGX 8230 with Door Attached

Figure 1-2

MGX 8230 Slot Placement

Figure 1-3

MGX 8230 Card Cage, Front View

Figure 1-4

AC Power Supply Module, Rear View

Figure 1-5

MGX 8230 DC Power Entry Module

Figure 1-6

MGX 8230 Fan Tray Assembly

Figure 1-7

MGX 8230 Architecture Simple Block Diagram

Figure 1-8

Cell Bus Distribution

Figure 2-1

PXM1 Front Card

Figure 2-2

User Interface Back Card (PXM1-UI)

Figure 2-3

User Interface Back Card (PXM-UI-S3): Stratum 3 Clocking

Figure 2-4

OC-12 Long-Reach Back Card (SMFLR-1-622/B)

Figure 2-5

OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B)

Figure 2-6

OC-3 Four-Port Back Card (SMF-155/B)

Figure 2-7

Two-port T3 Back Card (BNC-2T3)

2-10

Figure 2-8

Two-port E3 Back Card (BNC-2E3)

2-11

Figure 2-9

MGX-SRM-3T3/C Card Set

Figure 2-10

AUSM/B-8T1 or AUSM/B-8E1 Front Card

Figure 2-11

RJ-48 and SMB Back Cards for the MGX-AUSM-8T1E1/B

Figure 2-12

BPX 8620 Network with NIW Connections

Figure 2-13

BPX 8600 Series Network with SIW Connections

Figure 2-14

MGX-FRSM-8T1

Figure 2-15

RJ-48 and SMB Back Cards for the MGX-FRSM-8T1/E1

Figure 2-16

MGX-FRSM-2CT3

Figure 2-17

MGX-FRSM-2T3E3

Figure 2-18

BNC-2T3

2-36

Figure 2-19

BNC-2E3

2-37

Figure 2-20

MGX-FRSM-HS2

Figure 2-21

MGX-FRSM-HS1/B Front Card Faceplate

Figure 2-22

SCSI2-2HSSI

Figure 2-23

12IN1 S4 Back Card Faceplate

1-2

1-5
1-6
1-7
1-8

1-9
1-10

1-11

2-3
2-5
2-6

2-7
2-8

2-9

2-14
2-17
2-19

2-23
2-24

2-30
2-31

2-34
2-35

2-41
2-42

2-43
2-44

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Figures

Figure 2-24

Front Cards for the Eight-Port CESM

Figure 2-25

RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1

Figure 2-26

CESM-T3/E3 Front Card

Figure 2-27

BNC-2T3 Back Card for the CESM-T3/E3

2-53

Figure 2-28

BNC-2E3 Back Card for the CESM-T3/E3

2-54

Figure 2-29

VISM Front Cards

2-59

Figure 2-30

VISM Back Cards

2-60

Figure 3-1

Stability Plate Dimensions

Figure 3-2

Installing a Cisco Cabinet Over the Stability Plate

Figure 3-3

Mixed Grounding System

Figure 3-4

Frame Bonding Connection in Cisco-Supplied Rack

Figure 4-1

MGX 8230 Mounting Rail Positions

Figure 4-2

MGX 8230 Chassis with Rear Mounting Brackets for 19-Inch Rack

Figure 4-3

MGX 8230 Chassis Front View with 19-Inch Mid-Mounting Bracket

Figure 4-4

Front Card Insertion/Extractor Lever

Figure 4-5

Front View of MGX 8230 with 23-Inch Mid-Mounting Brackets

Figure 4-6

Rear View of MGX 8230 with Two DC PEMs

Figure 4-7

Rear View of MGX 8230 with 1 DC PEM

Figure 4-8

DC Power Entry Module, Rear View

Figure 4-9

Polarities at MGX 8230 PEM Pluggable Terminal Block

Figure 4-10

Pluggable Terminal Block on MGX 8230 PEM

Figure 4-11

Optional 1200 Watt AC Power Supply Module, Rear View

Figure 4-12

Rear View of MGX 8230 with Two Optional AC Power Supply Modules

Figure 4-13

Rear View of MGX 8230 with One AC Power Supply Module

Figure 4-14

Cable Management System on Rack-Mount MGX 8230

Figure 5-1

MGX 8230 MGX Feeder Application

Figure 6-1

Frame Relay Connection Through an MGX 8230/BPX Network

Figure B-1

RJ-48 Connectors

2-48
2-49

2-52

3-15
3-16

3-19
3-23

4-3
4-5
4-5

4-7
4-9

4-11

4-12

4-12
4-13

4-13
4-14
4-16

4-17

4-18

5-3
6-4

B-3

Cisco MGX 8230 Edge Concentrator Installation and Configuration

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T A B L E S

Table 1

MGX 8230 Edge Concentrator Related Documentation

Table 2

Cisco WAN Manager Release 10 Related Documentation

Table 3

Cisco WAN Switching Release 9.3 Related Documentation

Table 1-1

Cell Bus Distribution

Table 2-1

LED Indicators for the SRM-3T3/C

Table 2-2

Line Redundancy LED Indicators for the SRM-3T3/C

Table 2-3

Eight-Port AUSM/B LED Indicators

Table 2-4

Card Level LED Indicators for the FRSM T1/E1

2-28

Table 2-5

Line Level LED Indicators for the FRSM T1/E1

2-29

Table 2-6

Card Level LED Indicators for the FRSM-2T3E3

2-33

Table 2-7

Line Level LED Indicators for the FRSM-2T3E3

2-33

Table 2-8

Card Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2

2-39

Table 2-9

Line Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2

2-39

Table 2-10

12IN1-S4 Back Card Cable Types

Table 2-11

Cabling and Clock Sources for the MGX-FRSM-HS1/B

Table 2-12

Cabling Types and Part Numbers X.21 and V.35

Table 2-13

LED Indicators for Eight-Port CESM

Table 2-14

LED Indicators for T3/E3 CESM

Table 2-15

LED Indicators for VISM

Table 3-1

Ground Point Descriptions for Mixed Grounding

Table 3-2

Wire Gauge for Current Loads Over Copper Wire Lengths

Table 3-3

Resistance for Each Gauge of Copper Wire

Table 6-1

Policing Definitions According to Policing and Connection Type

Table 6-2

Supported Lines Rates on the MGX-FRSM-HS1/B

Table 6-3

CESM Errors and Alarms

6-39

Table 6-4

CESM Errors and Alarms

6-44

Table 6-5

Pattern Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3

Table 6-6

Loopback Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3

Table 6-7

Pattern Test for AX-FRSM-8E1 and AX-CESM-8E1

Table 6-8

Loopback Test for AX-FRSM-8E1 and AX-CESM-8E1

Table 6-9

Pattern Test for MGX-AUSM-8T1

xxii
xxiii
xxiii

1-11
2-13
2-13

2-18

2-39
2-39

2-40

2-46

2-51

2-58
3-19
3-20

3-21
6-12

6-28

6-54
6-54

6-54

Cisco MGX 8230 Edge Concentrator Installation and Configuration
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xvii

Tables

Table 6-10

Loopback Test for MGX-AUSM-8T1

Table 6-11

Pattern Test for MGX-AUSM-8E1

Table 6-12

Loopback Test for MGX-AUSM-8E1

Table A-1

Enclosure and Electrical Characteristics

Table A-2

PXM Specifications

Table A-3

Physical Characteristics of the AUSM/B-8T1E1

Table A-4

T1 Interface Characteristics

A-6

Table A-5

E1 Interface Characteristics

A-7

Table A-6

ATM Interface Characteristics

Table A-7

AUSM/B-8T1E1 Statistics and Counters

Table A-8

Frame Relay Interface Standards

Table A-9

FRSM-2CT3 Front Card Physical Characteristics

Table A-10

FRSM-2CT3 Line Level

Table A-11

Frame Relay Interface Standards

Table A-12

FRSM-2T3E3 Front Card Physical Characteristics

Table A-13

T3 Line Level

A-11

Table A-14

E3 Line Level

A-12

Table A-15

Frame Relay Interface Standards

Table A-16

FRSM-HS2 Physical Characteristics

Table A-17

FRSM-HS2 Line Characteristics

Table A-18

Counters per Line

Table A-19

Service-Related Statistics

Table A-20

ATM Cell-Related Statistics

Table A-21

Diagnostic-Related Statistics

Table A-22

Troubleshooting Statistics

Table A-23

General Card Specifications

Table A-24

Frame Relay Service With T1 Lines

Table A-25

System Interface

Table A-26

List of Counters

Table A-27

General Card Specifications

Table A-28

Frame Relay Service With E1 Lines

Table A-29

System Interface

Table A-30

List of Counters

Table A-31

CESM 8T1 Card Information

A-24

Table A-32

CESM 8E1 Card Set Details

A-25

6-55
6-55
6-55
A-2

A-3
A-6

A-7
A-8

A-9
A-9

A-9
A-10
A-11

A-13
A-13

A-13

A-14
A-14
A-15
A-16
A-16
A-17
A-17

A-18
A-19
A-20
A-21

A-22
A-23

Cisco MGX 8230 Edge Concentrator Installation and Configuration

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Tables

Table A-33

Physical Characteristics and Power Consumption by Card

Table A-34

Electromagnetic Compatibility and Immunity

Table B-1

Trunk Cables

Table B-2

T3 Connector Pin Assignments

Table B-3

RJ-48C T1/E1 Connector Pin Assignments

Table B-4

E1 Trunk/Circuit Line Cabling Specification

Table B-5

E1 Connector Pin Assignments (unbalanced)

Table B-6

12IN1-S4 cable types

Table B-7

V.35 signals

B-4

Table B-8

X.21 Signals

B-5

Table B-9

Cable Part Numbers for MGX-FRSM-HS1/BV

Table B-10

Pinouts for SCSI-II Connector

Table B-11

DC Power Wiring

B-6

Table B-12

AC Power Cables

B-7

Table B-13

Maintenance and Control Port Cabling

Table B-14

RJ-45 Maintenance and Control Port Pin Assignments

Table B-15

7T1 Clock Cabling

Table B-16

External Alarm Cabling

Table B-17

Network Alarm Pin Assignments

A-27

B-1
B-1
B-2
B-3
B-3

B-4

B-5

B-7
B-8

B-8
B-8
B-9

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xix

Tables

Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Preface
This preface describes the objectives, audience, organization, and conventions of the
Cisco MGX 8230 Edge Concentrator Installation and Configuration Guide.

Audience
This publication is intended for the person who will do the physical installation of the MGX 8230. The
MGX 8230 is typically co-located and rack-mounted with either an IGX 8400 or BPX series switch. The
MGX 8230 installer should be familiar with electronic circuitry and wiring practices and have
experience as an electronic or electromechanical technician, as well as with the Cisco IGX/BPX
switches.

Note

Warning

This Cisco MGX 8230 Edge Concentrator Installation and Configuration covers the installation and
configuration for the equipment. The command reference and error codes for the MGX 8230 are
described in the section “Related Documentation."

Installation of the equipment should be performed by trained service personnel.

Organization
This document is organized into the following chapters:
•

Chapter 1, “Introducing the MGX 8230”

•

Chapter 2, “Module and Service Descriptions”

•

Chapter 3, “Site Preparation”

•

Chapter 4, “Enclosure Installation”

•

Chapter 5, “Configuring the MGX 8230 Shelf”

•

Chapter 6, “Card and Service Configuration”

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xxi

Preface
Related Documentation

Related Documentation
The following Cisco publications contain additional information related to the operation of the Cisco
MGX 8230 Edge Concentrator.

MGX 8230 Edge Concentrator, Release 1.0 Related Documentation
The following table lists documentation that contains additional information related to the installation
and operation of the MGX 8230 Edge Concentrator.
Table 1

MGX 8230 Edge Concentrator Related Documentation

Documentation

Description

Cisco MGX 8230 Edge Concentrator Installation
and Configuration, Release 1.1.31

Provides installation instructions for the MGX 8230 Edge
Concentrator.

DOC-7811215=
Cisco MGX 8230 Edge Concentrator Command
Reference, Release 1.1.31

Provides detailed information on the general command line interface
commands.

DOC-7811211=
Cisco MGX 8230 Error Messages, Release 1.1.31

Provides error message descriptions and recovery procedures.

DOC-7811213=
WAN CiscoView for the MGX 8230 Edge
Concentrator, Release 1.1.31

Provides instructions for using WAN CiscoView for the MGX 8230
Edge Concentrator.

DOC-7810617=

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xxii

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Preface
Related Documentation

Cisco WAN Manager, Release 10, Related Documentation
The following table lists the documentation for the Cisco WAN Manager (CWM) network management
system for Release 10.
Table 2

Cisco WAN Manager Release 10 Related Documentation

Documentation

Description

Cisco WAN Manager Installation for Solaris, Release 10

Provides procedures for installing Release 10 of the CWM
network management system on Solaris systems.

DOC-7810308=
Cisco WAN Manager User’s Guide, Release 10

Provides procedures for operating Release 10 of the CWM
network management system.

DOC-7810658=

Cisco WAN Manager SNMP Service Agent Guide, Release 10 Provides information about the CWM Simple Network
Management Protocol Service Agent components and
DOC-7810786=
capabilities.
Cisco WAN Manager Database Interface Guide, Release 10
DOC-7810785=

Provides the information to gain direct access to the CWM
Informix OnLine database that is used to store information
about the elements within your network.

Cisco WAN Switching Software, Release 9.3 Related Documentation
This table lists related documentation for the installation and operation of the Cisco WAN Switching
Software, Release 9.3 and associated equipment in a Cisco WAN switching network.
Table 3

Cisco WAN Switching Release 9.3 Related Documentation

Documentation

Description

Cisco BPX 8600 Series Installation and
Configuration, Release 9.3.10

Provides a general description and technical details of the BPX
broadband switch.

DOC-7811603=
Cisco IGX 8400 Installation and Configuration

Provides installation instructions for the IGX multiband switch.

DOC-7810722=
Update to the IGX 8400 Installation and
Configuration, Release 9.3.10

Update for Release 9.3.10 to the Cisco IGX 8400 Installation and
Configuration manual.

DOC-7811029=
Cisco IGX 8400 Series Reference
DOC-7810706=

Provides a general description and technical details of the IGX
multiband switch.

Cisco WAN Switching Command Reference,
Release 9.3.05

Provides detailed information on the general command line interface
commands.

DOC-7810703=
Update to the Cisco WAN Switching Command
Reference, Release 9.3.10

Provides detailed information on updates to the command line interface
commands for features new to switch software release 9.3.10.

DOC-7811457=

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xxiii

Preface
Conventions

Table 3

Cisco WAN Switching Release 9.3 Related Documentation

Documentation

Description

Cisco WAN Switching SuperUser Command
Reference, Release 9.3.10

Provides detailed information on the command line interface
commands requiring SuperUser access authorization

DOC-7810702=
Cisco MPLS Controller Software Configuration
Guide, Release 9.3.10

Provides information on a method for forwarding packets through a
network.

DOC-7811658=

Conventions
This publication uses the following conventions to convey instructions and information.
Command descriptions use these conventions:
•

Commands and keywords are in boldface.

•

Arguments for which you supply values are in italics.

•

Required command arguments are inside angle brackets (< >).

•

Optional command arguments are in square brackets ([ ]).

•

Alternative keywords are separated by vertical bars ( | ).

Examples use these conventions:
•

Terminal sessions and information the system displays are in screen font.

•

Information you enter is in boldface screen font.

•

Nonprinting characters, such as passwords, are in angle brackets (< >).

•

Default responses to system prompts are in square brackets ([ ]).

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xxiv

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Preface
Obtaining Documentation

Notes, tips, cautions, and warnings use the following conventions and symbols:

Note

Means reader take note. Notes contain helpful suggestions or references to materials not contained
in this manual.

Timesaver

Means the described action saves time. You can save time by performing the action described in the
paragraph.

Caution

Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.

Warning

This warning symbol means danger. You are in a situation that could cause bodily injury. Before
you work on any equipment, be aware of the hazards involved with electrical circuitry and be
familiar with standard practices for preventing accidents.

Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.

World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
•

http://www.cisco.com

•

http://www-china.cisco.com

•

http://www-europe.cisco.com

Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships
with your product. The Documentation CD-ROM is updated monthly and may be more current than
printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation
Cisco documentation is available in the following ways:
•

Registered Cisco Direct Customers can order Cisco Product documentation from the Networking
Products MarketPlace:
http://www.cisco.com/cgi-bin/order/order_root.pl

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xxv

Preface
Obtaining Technical Assistance

•

Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription
Store:
http://www.cisco.com/go/subscription

•

Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by
calling 800 553-NETS(6387).

Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical
comments electronically. Click Feedback in the toolbar and select Documentation. After you complete
the form, click Submit to send it to Cisco.
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, use the response card behind the front cover of your document, or
write to the following address:
Attn Document Resource Connection
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.

Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com
registered users, additional troubleshooting tools are available from the TAC website.

Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open
access to Cisco information and resources at anytime, from anywhere in the world. This highly
integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline
business processes and improve productivity. Through Cisco.com, you can find information about Cisco
and our networking solutions, services, and programs. In addition, you can resolve technical issues with
online technical support, download and test software packages, and order Cisco learning materials and
merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on Cisco.com to obtain additional personalized information and
services. Registered users can order products, check on the status of an order, access technical support,
and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xxvi

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Preface
Obtaining Technical Assistance

Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product
or technology that is under warranty or covered by a maintenance contract.

Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC
website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
•

P3—Your network performance is degraded. Network functionality is noticeably impaired, but most
business operations continue.

•

P4—You need information or assistance on Cisco product capabilities, product installation, or basic
product configuration.

In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users
can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen

Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and
immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following
website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
•

P1—Your production network is down, causing a critical impact to business operations if service is
not restored quickly. No workaround is available.

•

P2—Your production network is severely degraded, affecting significant aspects of your business
operations. No workaround is available.

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

xxvii

Preface
Obtaining Technical Assistance

Cisco MGX 8230 Edge Concentrator Installation and Configuration

xxviii

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

C H A P T E R

Introducing the MGX 8230
This chapter contains an introduction to the Cisco MGX 8230 Edge Concentrator including a summary
of product features and equipment.
This chapter contains the following information:
•

MGX 8230 System Overview, page 1-2
– The Applications of the MGX 8230, page 1-3
– Universal Edge Architecture, page 1-3
– Standards-Based Conversion to ATM, page 1-4
– MGX 8230 Enclosure and Power, page 1-4
– MGX 8230 Management, page 1-11

•

Summary of MGX 8230 Cards and Modules, page 1-12
– Processor Switching Module (PXM1), page 1-12
– User Interface Back Cards, page 1-13
– Service Resource Module (SRM), page 1-14
– Frame Relay Service Modules (FRSM), page 1-14
– ATM UNI Service Modules (AUSM), page 1-14
– Circuit Emulation Service Modules (CESM), page 1-15
– Voice Service Modules (VISM), page 1-15
– Route Processor Module (RPM), page 1-15

•

Redundancy for Service Modules, page 1-16

For more detailed descriptions of the Service Modules, cards and services, please refer to Chapter 2,
“Module and Service Descriptions”
For additional descriptions of the MGX 8230 capabilities and specifications, refer to the Cisco document
MGX 8230 Edge Concentrator Overview.

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

1-1

Chapter 1

Introducing the MGX 8230

MGX 8230 System Overview

MGX 8230 System Overview
The Cisco MGX™ 8230 Edge Concentrator is a small footprint Multiservice Gateway specifically
designed for Service Providers with space and power constraints. The Cisco MGX 8230 offers cost
effective narrowband, voice, and IP services; and acts as a feeder shelf to Cisco BPX 8600 series, MGX
8850, and Cisco IGX 8400 series Multiservice Switches. The MGX supports the following services:
•

IP VPNs using Cisco IOS software-based MPLS/label switching.

•

The full suite of voice-over-IP, voice-over-ATM, and capabilities with full interworking.

•

Frame Relay services.

•

High-density Point-to-Point Protocol (PPP) for Internet access and aggregation.

•

Narrowband ATM for managed data, voice, and video services.

•

Circuit Emulation (CE) for private line replacement.

Figure 1-1 is an illustration of a MGX 8230 with its door attached. Note that there are light pipes in the
door that display the status of the processor models (PXM1s).
MGX 8230 with Door Attached

23823

Figure 1-1

Cisco MGX 8230 Edge Concentrator Installation and Configuration

1-2

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Chapter 1

Introducing the MGX 8230
MGX 8230 System Overview

The Applications of the MGX 8230
The MGX 8230 operates in the following applications:

Note

Refer to the Cisco document MGX 8230 Edge Concentrator Overview for additional information on
the applications of the MGX 8230.

Note

See Chapter 5, “Configuring the MGX 8230 Shelf” for information on configuring MGX8230
applications.

As a feeder
The MGX 8230 concentrates narrow-band and medium-band ATM, Frame Relay, and into a single,
wide-band ATM feeder trunk that connects to a BPX 8600-series switch or a MGX 8850 switch.

As a Stand-Alone Switch
The MGX 8230 can be deployed as a stand-alone switch, providing “cross-connect” connections
between UNI and NNI ports. Traditionally, this would be used in a concentration-type mode, allowing
standards-based adaptation and concentration of multiservice traffic onto one or more high-speed ATM
interfaces. This enables the MGX 8230 to interface to a multivendor ATM network, or to any other ATM
attached device (such as a Cisco 7200 or GSR router LS1010, MSR 8450, and so on).
The MGX 8230 interfaces to the ATM equipment using a standard ATM UNI or NNI..

Multiprotocol Label Switching (MPLS)
As a component of the BPX 8680-IP universal service node, the MGX 8230 is capable of forwarding
traffic into the BPX MPLS network by acting as a multiservice feeder

Consolidation of Cisco CPE Traffic
At the edge of the network, the MGX 8230 can interwork with and consolidate a wide variety of CPE
equipment.

Multiservice Stand-alone Concentrator
The MGX 8230 can be deployed as a stand-alone concentrator, interfacing to a multivendor ATM
(non-BPX) network, as shown Figure 1-5. The MGX 8230 interfaces to ATM equipment using a standard
ATM UNI or NNI.

Universal Edge Architecture
The MGX 8230 supports a wide range of services over narrowband and mid-band user interfaces by
mapping all service traffic to and from ATM using standardized interworking methods. The MGX 8230
supports up to 64 channelized or non-channelized T1 and E1 interfaces on a single IP + ATM
multiservice gateway

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

1-3

Chapter 1

Introducing the MGX 8230

MGX 8230 System Overview

The supported interfaces for user-traffic are:
•

Frame Relay UNI on T3, E3, HSSI, T1, and E1 lines.

•

ATM UNI and FUNI interfaces.

•

Optional inverse multiplexing for ATM (IMA).

•

Frame Relay to ATM network interworking and service interworking.

•

Circuit Emulation services for T1/E1 and T3/E3 lines.

The optional Service Resource Module-3T3 (MGX-SRM-3T3/C) can support up to 64 T1 interfaces. The
MGX-SRM-3T3/C can also provide 1:N redundancy for the T1 and E1 line cards.
The modular, software-based system architecture enables the 8230 to support new features through
downloadable software upgrades or new hardware modules.
The MGX 8230 backplane supports individual line rates range from DS0 through OC-3.

Standards-Based Conversion to ATM
The MGX 8230 converts all user information into 53-byte ATM cells by using the appropriate ATM
Adaptation Layer (AAL) for transport over the ATM backbone network. The individual service modules
segment and reassemble (SAR) cells to eliminate system bottlenecks. The following list shows the
applicable AAL for each service:
•

Circuit emulation services uses AAL1.

•

Frame Relay-to-ATM network interworking uses AAL5 and Frame Relay Service Specific
Convergence Sub-layer (FR-SSCS).

•

Frame Relay-to-ATM service interworking uses both transparent and translation modes to map
Frame Relay to native ATM AAL5.

•

Frame Forwarding uses AAL5.

MGX 8230 Enclosure and Power
The MGX 8230 has a 14 single-height slot (7 double-height) chassis. This chassis can be rack mounted
in a 19-inch rack, or fitted with side panels to be a free-standing box (referred to as a “stand-alone” MGX
8230). An optional mounting bracket kit is also available for mounting the MGX 8230 in 23-inch racks.

Note

Although the card slots in an MGX 8230 are horizontal, this manual refers to the card slots and
modules as single-height and double-height. This is for consistency: the PXM1 core card and service
module cards are a subset of the MGX 8250 cards that are installed vertically in an MGX 8250
chassis.

Slot Numbering and Placement
The MGX 8230 slots are populated with cards and modules according to the following rules
(Figure 1-2):
•

The slots are numbered 1 to 7 on the left half of the chassis. The slots on the right side of the chassis
are numbered 8 to 14.

Cisco MGX 8230 Edge Concentrator Installation and Configuration

1-4

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Chapter 1

Introducing the MGX 8230
MGX 8230 System Overview

•

Each service module slot can accept one single-height card or be converted to accept two
double-height cards.

•

Slots are 1 and 2 are always double-height slots and reserved for the primary and redundant MGX
8230 Processor Switch Modules (PXM1s).

•

Slots 7 and 14 are reserved for SRM modules only: no other service modules can be used in these
two slots.

•

Eight single-height slots (four double-height slots) are available for service modules.

Figure 1-2 is a conceptual drawing of an MGX 8230 showing the dimensions and the slot numbering.
The slot numbering is as it appears from the front of the MGX 8230; slots 8 and 9 refer to back card slots
only.

Single Height and Double Height Slots
Single-height slots on the MGX 8230 chassis can be converted into double-height slots.
•

When a double-height front card is plugged in, the left slot number is used. The back cards are
numbered according to the front card numbering scheme, with the exception of slots 8 and 9 as noted
below.

•

Since front slots 1 and 2 are always double-height for PXM1 processor modules, slots 8 and 9 only
refer to the back card slots that correspond to the two lower single-height slots on the left side of the
chassis as seen from the rear.

•

When converting single-height slots into double-height slots the conversion must start from the
bottom and be contiguous. For example, before you can convert slot 4 into double height, slot 3 must
be converted first (as shown in Figure 1-3 on page 1-6).
MGX 8230 Slot Placement

F
A
N
7 RU
(12.25 in.,
31.1 cm.)

T
R
A
Y

SRM

PXM 2

PXM 1

1 RU
(1.75 in.,
4.5 cm.)

Optional AC power tray

38375

Figure 1-2

23.5 in.,
(59.7 cm.)

17.72 in.
(45 cm.)

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MGX 8230 System Overview

MGX 8230 Card Cage, Front View

26268

Figure 1-3

Chapter 3, “Site Preparation” and Chapter 4, “Enclosure Installation” contain additional information on
installing racks and the MGX 8230 chassis.

MGX 8230 Power System
The MGX 8230 power system is designed with distributed power architecture centered around a
-48 VDC bus on the system backplane. The -48 VDC bus accepts redundant DC power from either a -42
to -56 VDC source via optional DC power entry modules (PEMs) or from a 100 to 120 or a 200 to 240
VAC source via the optional AC Power Supply Tray. The MGX 8230 backplane distributes power via
connectors on the - 48 VDC bus to each hot-pluggable processor or service module. Each card
incorporates on-board DC-DC converters to convert the -48 VDC from the distribution bus voltage to
the voltages required on the card.

Optional AC Power Supply
For an AC-powered MGX 8230, an optional AC power supply tray is attached to the bottom of the MGX
8230 card cage at the factory. The AC power supply tray is one rack-unit high, and can hold up to two
AC Power Supply modules. Each AC Power Supply module can provide up to 1,200W at -48 VDC and
has its own AC power cord and power switch. Figure 1-4 shows the rear view of an optional AC Power
Supply module. The power supplies can be configured as 1+1 redundant. If no redundancy is desired, an
AC tray with one AC power supply and one AC power cord can also be ordered.

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MGX 8230 System Overview

AC Power Supply Module, Rear View

23818

Figure 1-4

AC DC

Each AC Power Supply Module incorporates the following features:
•

1 rack unit high

•

An output capacity of 1200 Watts at -48 VDC

•

O-ring diode

•

EMI filtering

•

Cooling fan

•

Power switch

•

DC and AC status LEDs

DC-Powered MGX 8230
For DC systems, a DC Power Entry module (PEM) is required for each DC source of central office power
-42 to -56 VDC. The MGX 8230 can support two DC power sources and has rear panel slots for two DC
PEMS. Figure 1-5 illustrates a DC PEM.
The DC PEMs incorporate the following features:
•

Hot swappable

•

O-ring diode

•

EMI filtering

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MGX 8230 System Overview

MGX 8230 DC Power Entry Module

17275

Figure 1-5

OFF

TB1

48 VDC
30A
3

Cooling System
The MGX 8230 incorporates a fan tray assembly (with eight fans) located on the left side of the card
cage to pull ambient cooling air into the system through openings between front card faceplates, over
the boards in the card cage, and out through air exhaust openings on the left side of unit. Figure 1-6 is
an illustration of the MGX 8230 fan tray assembly. The cooling system incorporates the following design
features:
•

-48 VDC fans with rotation sensing

•

N+1 fan redundancy

•

Hot pluggable (if done quickly) Fan Tray Assembly

•

Noise level < 65 dBA

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MGX 8230 System Overview

MGX 8230 Fan Tray Assembly

17274

Figure 1-6

MGX 8230 Architecture
The MGX 8230 architecture is built around the switching fabric on the processor switching module
(PXM1), the backplane, and the service modules. Figure 1-7 is a very simple block diagram of the MGX
8230 architecture.
The main functions of the MGX 8230 backplane are to connect cards together, terminate critical signals
properly, provide -48 VDC power to all cards, and set ID numbers for each slot. In addition, the MGX
8230 backplane interconnects both front cards and back cards together via pass-through connectors. A
software readable ID on the backplane is available for software to identify that the chassis is an
MGX 8230.
The cell bus controllers (CBCs) are application-specific integrated circuits (ASICs) and provide the
interface between the switching fabric and the service modules.

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Figure 1-7

MGX 8230 Architecture Simple Block Diagram

MGX 8230-PXM
front card

PXM-UI
back card

Processor

Maintenance and
control ports
LAN ports
T1/E1 clocks
Alarm outputs

PXM
uplink
back card

OC-3, OC-12,or
T3/E3 daughter card

CBC

Cell buses
to and from
service modules

CBC

MGX 8230 midplane

38377

Shared
memory
switch

OC-3, OC-12,or
T3/E3 feeder link

Cell Bus
The MGX 8230 cell bus (CB) provides high-speed interface between the switch fabric and the service
modules.
Figure 1-8 shows the overall cell bus distribution of MGX 8230 backplane and Table 1-1 lists the
specific cell bus allocation to each slot with respect to master and slave cell bus ports.
Each PXM1 supports eight master cell buses and one slave cell bus connected to the backplane. The
service modules have two slave cell bus ports, one from each PXM1. The master cell bus ports are CB0
to CB7 and the PXM1 slave ports are referred to as 7S and 8S in Table 1-1.
A cell bus comprises the group of signals used to transfer data between the PXM and a service module.
CB 0, 6, 1, 2, 4, and 3 are dedicated service modules, CB5 supports physical slot 6. CB7 supports
physical slot 13 as well as the alternate PXM1’s slave port.
There is a connection on cell bus 7 to the alternate PXM1. A PXM1 is able to communicate with the
other PXM1 using the slave cell bus port on that card. Slots 8 and 9 only refer to back card slots.

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MGX 8230 System Overview

Figure 1-8

Cell Bus Distribution

Left side of chassis

Right side of chassis

PXM

38376

CB2
CB4
CB3
CB7

PXM

CB0
CB6
CB1
CB5

Table 1-1

Cell Bus Distribution

Left Side Chassis

Right Side Chassis

Physical Slot #

Slot ID Address

CB0_A/B

CB1_A/B

CB2_A/B

CB3_A/B

CB4_A/B

CB5_A/B

CB6_A/B

CB7_A
CB7_B

MGX 8230 Management
Firmware on each card determines the functions and operations of the module. This firmware can be
upgraded by downloading new firmware with a TFTP application running on a workstation or a PC.
The current status and configuration parameters of the modules reside in a Management Information
Base (MIB). The MIB is updated by the firmware in the modules whenever changes to the module status
or configuration occur. The MIB can be interrogated using SNMP commands.
The MGX 8230 supports the following user interface applications:
•

Cisco WAN Manager (formerly StrataView Plus): a Graphical User Interface (GUI) application for
connection management. This application enables operations, administration, and maintenance of
WAN-multiservice networks.

•

CiscoView: a GUI application for hardware configuration.

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Summary of MGX 8230 Cards and Modules

•

Command line interface (CLI): the CLI is used for low-level control of hardware functionality and
connection control.

The following ports are used to communicate with the MGX 8230:
•

The Control port (SLIP protocol only) on the PXM1-UI back card.

•

The LAN (Ethernet) port on the PXM1-UI back card.

•

The in-band ATM connection (feeder application only).

All of these ports support access by the CLI via Telnet, TFTP, and SNMP.

Note

See the User Interface Access Ports, page 5-2 for additional information on the ports used to manage
and configure the MGX 8230.

Summary of MGX 8230 Cards and Modules
This section contains a summary of the service cards and modules supported by the MGX 8230.
For more detailed descriptions and illustrations of cards, modules and the services they provide, please
refer to Chapter 2, “Module and Service Descriptions”.

Introduction to Core Card Sets and Service Modules
The MGX 8230 supports core cards and service modules. The Processor Switching Module (PXM1) and
optional Service Resource Module (SRM) are core cards.
In addition, the PXM1 is part of a card set consisting of a front card, a back card, and a daughter card:
•

The front card contains the processing intelligence.

•

The daughter card contains the firmware that distinguishes the interface (OC-3, T3, E3, and so on).

•

The back card is a simple card that provides the electrical interface for one or more lines of a
particular type.

Service modules are not combined in this manner and are never part of a card set. Instead, service
modules provide the interface for transport technologies such as Frame Relay and ATM.
The MGX 8230 enclosure contains up to 8 service modules (I/O cards). The optional Service
Redundancy Modules (SRMs) provide redundancy.

Note

Although technically distinct, he terms card and module are often used interchangeably in the field.

Processor Switching Module (PXM1)
•

Processor Switching Module (PXM1)
This front card controls the 8230 and supports external interfaces for user-access and trunking or
UNI ports. The back cards consist of a user interface card and a broadband network module.

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Summary of MGX 8230 Cards and Modules

User Interface Back Cards
•

Processor Switch Module User Interface (PXM1-UI)
The PXM1-UI is the user interface card that has various types of user access used to control and
configure the 8230.

•

Processor Switch Module User Interface (PXM-UI-S3)
The PXM-UI-S3 is an optional user interface card that has various types of user access used to
control and configure the 8230. This card also provides Stratum 3 clocking capability.

OC-3 Uplink Back Cards
•

MGX-MMF-4-155/B (multi-mode fiber uplink back card)
The MGX-MMF-4-155/B is a broadband network module for the PXM1 and provides four SONET
OC-3/STM-1 ATM interfaces at 155 Mbps.

•

MGX-SMFIR-4-155/B (single-mode fiber intermediate reach uplink back card)
The MGX-SMFIR-4-155/B is a broadband network module for the PXM1 and provides a
single-mode, intermediate-reach, fiber optic SONET OC-3 interface that conforms to ANSI T1.105
and GR-253-CORE standards. This interface uses SC connectors. Redundant configurations are
supported through SONET automatic protection switching (APS) functionality (APS requires the
“B” model).

•

MGX-SMFLR-4-155/B (single-mode fiber long reach uplink back card)
The MGX-SMFLR-4-155/B is a broadband network module for the PXM1 and provides a
single-mode, long-reach, fiber optic SONET OC-3 interface that conforms to ANSI T1.105 and
GR-253-CORE standards. This interface uses SC connectors, and redundant configurations are
supported through SONET Automatic Protection Switching (APS) functionality (APS requires the
“B” model).

OC-12 Uplink Back Cards
•

MGX-SMFIR-1-622
The MGX-SMFIR-1-622 is a broadband network module for the PXM1 and provides a SONET
OC-12/STM-4 ATM interface at 622 Mbps. Automatic Protection Switching (APS) requires the “B”
model (SMFIR-1-622/B).

•

MGX-SMFLR-1-622
The MGX-SMFLR-1-622 is a broadband network module for the PXM1 and provides a SONET
OC-12/STM-4 ATM interface at 622 Mbps. Automatic Protection Switching (APS) requires the “B”
model (SMFLR-1-622/B).

T3/E3 Uplink Back Cards
•

MGX-BNC-2T3
The MGX-BNC-2T3 is a broadband network module for the PXM1 and provides two T3 ATM
interfaces.

•

MGX-BNC-2E3
The MGX-BNC-2E3 is a broadband network module for the PXM1 and provides two E3 ATM
interfaces. Two versions of the BNC-2E3 card are available. The BNC-2E3A applies to Australia
only. The BNC-2E3 applies to all other sites that require E3 lines on the PXM1 uplink card.

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Summary of MGX 8230 Cards and Modules

Service Resource Module (SRM)
•

Service Resource Module (MGX-SRM-3T3/C)
The optional SRM provides three major functions for service modules; bit error rate tester (BERT)
of T1 and E1 lines and ports, loops back of individual N x 64 channels toward the customer premises
equipment (CPE), and 1:N redundancy for the service modules.

Frame Relay Service Modules (FRSM)
•

Frame Service Module for eight T1 ports (AX-FRSM-8T1)
The AX-FRSM-8T1 provides interfaces for up to eight fractional T1 lines, each of which can
support one 56 kbps or one Nx64 kbps FR-UNI, FR-NNI port, ATM-FUNI, or a Frame forwarding
port. The AX-FRSM-8T1 supports fractional and unchannelized T1 port selection on a per-T1 basis.

•

Frame Service Module for eight E1 ports (AX-FRSM-8E1)
The AX-FRSM-8E1 provides interfaces for up to eight fractional E1 lines, each of which can
support one 56 kbps or one Nx64 kbps FR-UNI, FR-NNI, ATM-FUNI, or Frame forwarding port.
The AX-FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis.

•

Frame Service Module for eight channelized T1 ports (AX-FRSM-8T1-C)
The AX-FRSM-8T1-C allows full DS0 and n x DS0 channelization of the T1s. Each interface is
configurable as up to 24 ports running at full line rate, at 56 or n x 64 kbps for a maximum of 192
ports per FRSM-8T1-C.

•

Frame Service Module for eight channelized E1 ports (AX-FRSM-8E1-C)
The AX-FRSM-8E1-C allows full DS0 and n x DS0 channelization of the E1s. Each interface is
configurable as up to 31 ports running at full line rate, at 56 or n x 64 kbps for a maximum of 248
ports per FRSM-8E1-C.

•

Frame Service Module for T3 and E3 (MGX-FRSM-2E3T3)
The MGX-FRSM-2E3/T3 provides interfaces for two T3 or E3 Frame Relay lines, each of which
can support either two T3 lines (each at 44.736 Mbps) or two E3 lines (each at 34.368Mbps)
FR-UNI, ATM-FUNI, or Frame Forwarding port.

•

Frame Service Module for channelized T3 (MGX-FRSM-2CT3)
The MGX-FRSM-2CT3 supports interfaces for two T3 channelized Frame Relay lines. Each
interface supports 56 Kbps, 64 Kbps, Nx56 Kbps, Nx64 Kbps, T1 ports that can be freely distributed
across the two T3 lines.

•

Frame Service Module for high speed serial (MGX-FRSM-HS1/B)
The FRSM-HS1/B supports the 12-in-1 back card. This back card supports up to four V.35 or X.25
serial interfaces. This card also supports the two port HSSI back cards with SCSI-2 connectors.

•

Frame Service Module for unchannelized HSSI (MGX-FRSM-HS2/B)
The MGX-FRSM-HS2/B supports interfaces for two unchannelized HSSI lines. Each interface
supports approximately 51 Mbps; with both lines operating, maximum throughput is 70 Mbps.

ATM UNI Service Modules (AUSM)
•

ATM UNI Service Module for T1 (MGX-AUSM/B-8T1)
The MGX-AUSM/B-8T1 provides interfaces for up to eight T1 lines. You can group N x T1 lines to
form a single, logical interface (IMA).

•

ATM UNI Service Module for E1 (MGX-AUSM/B-8E1)
The MGX-AUSM/B-8E1 provides interfaces for up to eight E1 lines. You can group N x T1 lines to
form a single, logical interface (IMA).

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Summary of MGX 8230 Cards and Modules

Circuit Emulation Service Modules (CESM)
•

Circuit Emulation Service Module for T1 (AX-CESM-8T1)
The AX-CESM-8T1 provides interfaces for up to eight T1 lines, each of which is a 1.544 Mbps
structured or unstructured synchronous data stream.

•

Circuit Emulation Service Module for E1 (AX-CESM-8E1)
The AX-CESM-8E1 provides interfaces for up to eight E1 lines, each of which is a 2.048-Mbps
structured or unstructured synchronous data stream.

•

Circuit Emulation Service Module for T3 and E3 (MGX-CESM-T3/E3)
The MGX-CESM-T3E3 provides direct connectivity to one T3 or E3 line for full-duplex
communications at the DS3 rate of 44.736 MHz or at the E3 rate of 34.368 MHz. Each T3 or E3 line
consists of a pair of 75-ohm BNC coaxial connectors, one for transmit data and one for receive data,
along with three LED indicators for line status.

Voice Service Modules (VISM)
•

MGX-VISM-8T1 and MGX-VISM-8E1
These cards support eight T1 or E1ports for transporting digitized voice signals across a packet
network. The VISM provides toll-quality voice, fax and modem transmission and efficient
utilization of wide-area bandwidth through industry standard implementations of echo cancellation,
voice-compression and silence- suppression techniques.

Note

For configuration information on the Voice Interworking Service Module (VISM), see the
Voice Interworking Service Module Installation and Configuration Guide

Route Processor Module (RPM)
•

Route Processor Module (RPM)
The RPM is a Cisco 7200 series router redesigned as a double-height card. Each RPM uses two
single-height back cards. The back card types are single-port Fast Ethernet, four-port Ethernet, and
single-port (FDDI).

Note

For information on availability and support of the MGX-RPM-128/B and MGX-RPM-PR,
see the Release Notes for “Cisco WAN MGX 8850, 8230, and 8250 Software”

Note

For configuration information on the Route Processor Module (RPM), see the Cisco Route
Processor Module Installation and Configuration Guide.

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Summary of MGX 8230 Cards and Modules

Redundancy for Service Modules
Service modules can have either 1:1 redundancy or 1:N redundancy.
Refer to the CiscoView user documentation for instructions on using the CiscoView application to
configure redundancy.

1:1 Redundancy
For 1:1 redundancy, place the card sets in adjacent slots and connect the appropriate Y-cable to the paired
ports on the active and standby cards. Applicable service modules are:
•

MGX-FRSM-2CT3

•

MGX-FRSM-2T3E3

•

MGX-FRSM-HS2

Hot Standby
For hot standby, place the card sets in the same shelf and connect the appropriate Y-cable to the paired
ports on the active and hot standby cards. The hot standby card will automatically configure itself to
match the configuration of the primary card. This process may take up to eight minutes. After the
configuration transfer process is completed, the transfer from the primary to the hot standby card takes
less that one second regardless of the number of connections. Any subsequent changes to the primary
card are automatically transferred to the hot standby card configuration so the two cards maintain the
same configuration. Refer to the “Redundancy for Service Modules” section on page 1-16 for
instructions for setting up a redundant pair.
Applicable service modules are:
•

MGX-FRSM-2CT3

•

MGX-FRSM-2T3E3

•

MGX-FRSM-HS2

To determine the hot standby status of the system, use the command dsphotstandby.

1:N Redundancy
For 1:N redundancy, an MGX Service Resource Module-3T3 (MGX-SRM-3T3/C) card set is necessary.
This card set supports 1:N redundancy for the following service modules:
•

MGX-AUSM-8T1/B

•

MGX-AUSM-8E1/B

•

AX-FRSM-8T1

•

AX-FRSM-8E1

•

AX-CESM-8T1

•

AX-CESM-8E1

•

MGX-VISM-8T1

•

MGX-VISM-8E1

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With 1:N redundancy, a group of service modules has one standby module. Redundancy by way of the
redundancy bus on the MGX-SRM-3T3/C requires the redundant card group to have one of the following
special back cards for redundancy support:
•

R-RJ48-8T1-LM

•

R-RJ48-8E1-LM

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C H A P T E R

Module and Service Descriptions
This chapter includes detailed descriptions of the modules, cards and services available with the
MGX 8230:

Note

•

Processor Switching Module, page 2-1.

•

Service Resource Module, page 2-12.

•

ATM UNI Service Module (AUSM), page 2-15.

•

Frame Relay Service Modules, page 2-20.

•

Circuit Emulation Service Modules, page 2-45.

•

Voice Service: The VISM, page 2-55.

Although the illustrations in this chapter display the equipment in a vertical position, the cards and
modules are rotated 90 degrees (to a horizontal position) when installed in the MGX 8230 back card
slots. See the “MGX 8230 Enclosure and Power” section on page 1-4 for more information on slot
assignments and module installation.

Processor Switching Module
The PXM1 card set consists of the PXM1 front card, the PXM1 User Interface back card (PXM1-UI or
PXM-UI-S3), and various uplink back cards that can serve as either a trunk or a UNI.
For physical details of PXM1 cards, see Appendix A, “Technical Specifications.”

Caution

Handle the PXM1 front card very carefully to preserve the alignment of the attached disk drive. Do
not drop or bump the PXM1.

Caution

Before using the 8230, verify that the daughter card on the PXM1 corresponds to the uplink card type.
Serious damage may result if the power is on and these cards are mismatched.

Note

The PXM1 processor module for the MGX 8230 is identical to the PXM1 for the MGX 8250.

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Module and Service Descriptions

Processor Switching Module

PXM1 Features
The PXM1 (Figure 2-1) is a combination ATM switching fabric, data processing, and ATM interface
card. This module combines a 1.2 Gbps shared-memory switching fabric with integrated trunking at
speeds up to OC-12. The switching fabric provides 1.2 Gbps of non-blocking switching capacity, while
the processor provides the control plane that delivers IP+ATM networking software, diagnostics, and
performance monitoring.
The PXM provides integrated switching, processing, and broadband interfaces to provide the following
high-performance switching and trunking features:
•

1.2-Gbps non-blocking switching

•

Integrated T3/E3, OC-3c/STM-1, OC-12c/STM-16

•

ATM trunking

•

Linear Automatic Protection Switching for the SONET interfaces. Note that APS is available for
only the “B” models of the OC-3 and OC-12 uplink cards.

•

Hot card insertion/removal

•

1:1 hot standby redundancy

•

User-selectable primary and secondary clock sources with graceful switchover

•

Internal Stratum-4 or optional Stratum-3, external BITS, or inband clock sources

•

Inband management or out-of-band via EIA/TIA-232 or 10BaseT control ports

•

Narrowband service modules

•

Broadband trunking support

•

DSO to OC-12c/STM-4 interfaces supported

PXM1 Illustration and LED Description
PXM1 provides connectors for external audio and visual alarms. The interface can either be always open
or always closed. Major and minor alarms are controlled separately. An alarm cutoff button is accessible
from the front. A history LED is set when the alarm cutoff button is pressed. The history LED can be
cleared by pressing the history clear button on the faceplate.
The PXM1 provides the following indicators:
•

System Status Active/Standby/Fail/standby update (green/yellow/red/flashing yellow)

•

Critical alarm (blue)

•

Major alarm (red)

•

Minor alarm (yellow)

•

DC OK A (green = OK, red = not OK)

•

DC OK B (green = OK, red = not OK)

•

ACO (green)

•

History (green)

•

Port activity (active and clear = green, remote alarm = yellow, local alarm = red)

•

LAN activity (flashing green)

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Processor Switching Module

PXM1 Front Card

11439

Figure 2-1

PXM1 User Interface Back Cards
The PXM1 User Interface (PXM1-UI) back card provides ports for communication and control. This
card is also used to connect the system to an external clocking source. Install this card in the upper half
of the back of the PXM1. See the “User Interface Access Ports” section on page 5-2 for more information
on the PXM1 back card ports.
There are two options for the PXM1 User Interface back card:

PXM1-UI (standard)
The PXM1-UI back card shown in Figure 2-2 provides:
•

One RJ-45/48 for external T1 or E1 clock input

•

One BNC connector for E1 clock input

•

One DB-15 female connector for alarm interface

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Module and Service Descriptions

Processor Switching Module

•

Maintenance, Control and LAN ports.

PXM-UI-S3 (optional)
The PXM-UI-S3 back card shown in Figure 2-3 provides Stratum 3 clocking:

Note

•

One RJ-45/48 connector for external T1 or E1 clock input (CLK1).

•

One DB-15 female connector for alarm interface (Alarm)

•

Maintenance, Control and LAN ports.

The LAN2 and CLK2 ports on the PXM-UI-S3 are not supported in this release. All external
connections are made with the LAN1 and CLK1 ports.

Making External Clock Connections
If external equipment or a local digital central office is to provide synchronization, the external clock
source is connected to the PXM1-UI or PXM-UI-S3 back card.

Stratum 4 clocking
External clocking sources are connected to the PXM1-UI back card (Figure 2-2).
•

One RJ-45/48 connector for external T1 or E1 clock input.

•

One BNC connector for E1 clock input.

Stratum 3 clocking
External clocking sources are connected to the PXM-UI-S3 back card (Figure 2-3).
•

Note

For T1 and E1 Stratum 3 external clock input, connect the source to the RJ-45/48 connector labeled
“CLK1.”

The LAN2 and CLK2 ports on the PXM-UI-S3 are NOT supported in this release. All external
connections are made with the LAN1 and CLK1 ports.
See Chapter 5, “Configuring the MGX 8230 Shelf” for further information on configuring an external
clocking source.

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Processor Switching Module

PXM1 Back Cards
This section contains illustrations of the following PXM1 cards.
•

Figure 2-2: User Interface Back Card (PXM1-UI)

•

Figure 2-3: User Interface Back Card (PXM-UI-S3): Stratum 3 Clocking

•

Figure 2-4: OC-12 Long-Reach Back Card (SMFLR-1-622/B)

•

Figure 2-5: OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B)

•

Figure 2-6: OC-3 Four-Port Back Card (SMF-155/B)

•

Figure 2-7: Two-port T3 Back Card (BNC-2T3)

•

Figure 2-8: Two-port E3 Back Card (BNC-2E3)

PXM1 User Interface Back Cards
Refer to PXM1 User Interface Back Cards, page 2-3 for descriptions of the features available with the
PXM1 User Interface back cards.
Figure 2-2

User Interface Back Card (PXM1-UI)

PXM1-UI

T1
C
L
O
C
K

T1 clock

M
P

Maintenance port

C
P

Control port

L
A
N

LAN port
E1 clock source
E1 CLOCK

A
L
A
R
M

57659

Alarm outputs

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Processor Switching Module

Figure 2-3

User Interface Back Card (PXM-UI-S3): Stratum 3 Clocking

PXM
UI-S3

C
P

Control port

M
P

Maintenance port

L
A
N

LAN 1 port

L
A
N

LAN 2 port
(not supported in this release)

External Clock 1
(connection for T1 and E1
external clock sources)
External Clock 2
(not supported in this release)

EXT CLK 1

EXT CLK 2

A
L
A
R
M

46010

Alarm port

Alarm Output Connection
Dry contact relay closures are available for forwarding MGX 8230 alarms to an alarm system. Separate
visual and audible alarm outputs are available for major and minor alarm outputs. The MGX 8230 alarm
outputs are available on a DB-15 connector on the PXM-UI-S3 back card faceplate.

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SMFLR-1-622 Back Card
An illustration of the long-reach OC-12 card appears in Figure 2-4. For specifications on this card, refer
to Appendix A, “Technical Specifications.” Note that Automatic Protection Switching (APS) requires
the “B” model—an SMFLR-1-622/B.
Figure 2-4

OC-12 Long-Reach Back Card (SMFLR-1-622/B)

SMFLR-1-622
ENABLED

SIGNAL

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Processor Switching Module

SMFIR-1-622 Back Card
The intermediate-reach OC-12 back card appears in Figure 2-5. For specifications on this card, refer to
Appendix A, “Technical Specifications.” Note that Automatic Protection Switching (APS) requires the
“B” model—an SMFIR-1-622/B.
Figure 2-5

OC-12 Intermediate-Reach Back Card (SMFIR-1-622/B)

SMFLR-1-622
ENABLED

SIGNAL

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Processor Switching Module

SMF-155 Back Card
The SMF-155 back card provides a physical single-mode fiber optic SONET OC-3 interface that
conforms to ANSI T1.105 and GR-253-CORE standards. This interface uses SC connectors, and
redundant configurations are supported through Y-cables. For specifications on this card, refer to
Appendix A, “Technical Specifications.” Note that Automatic Protection Switching (APS) requires the
“B” model—an SMF-155/B.
Figure 2-6

OC-3 Four-Port Back Card (SMF-155/B)

SC-4-155
ENABLED

SIGNAL
RX
P
O
R
T
1
TX
SIGNAL
RX
P
O
R
T
2
TX
SIGNAL
RX
P
O
R
T
3
TX
SIGNAL
RX
P
O
R
T
4

12206

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BNC-2T3 Back Card
For card specifications, refer to Appendix A, “Technical Specifications.”
Figure 2-7

Two-port T3 Back Card (BNC-2T3)

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

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Processor Switching Module

BNC-2E3 Back Card
Two versions of the BNC-2E3 card are available. The BNC-2E3A applies to Australia only, and the
BNC-2E3 applies to all other sites that require E3 lines on the PXM1 uplink card. An illustration of the
two-port E3 back card appears in Figure 2-8. For specifications on this card, refer to Appendix A,
“Technical Specifications.”
Figure 2-8

Two-port E3 Back Card (BNC-2E3)

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

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Chapter 2

Module and Service Descriptions

Service Resource Module

Service Resource Module
A service resource module (SRM) provides three main functions for the service modules:
•

Bit Error Rate Testing

•

1:N Service Module Redundancy

•

Bulk Distribution Mode

See Figure 2-9 for an illustration of the MGX-SRM-3T3/C front card and the MGX-BNC-3T3-M back
card.

Bit Error Rate Testing
After a service module line or port is put into loopback mode, the SRM can generate a test pattern over
the looped line or port, read the received looped data, and report on the error rate. This operation can be
performed on a complete T1 or E1 line, on a fractional T1 or E1 line, on a SD0 bundle (N x DS0), or on
a single DS0 channel. The SRM can support BERT only one line or channel at a time. BERT is capable
of generating a variety of test patterns, including all ones, all zeros, alternate one zero, double alternate
one zero, 223-1, 220-1, 215-1, 211-1, 29-1, 1 in 8, 1 in 24, DDS1, DDS2, DDS3, DDS4, and DDS5.

1:N Service Module Redundancy
Service module redundancy provides 1:N redundancy for multiple groups of service modules (a
group consists of N active and one standby service module). The redundant service module in a
group must be a superset (with respect to functionality) of the cards. Upon the detection of a failure
in any of the service modules, the packets destined for the failed service module are carried over the
CellBus to the SRM in its chassis. The SRM receives the packets and switches them to the backup
service module via the CellBus.

Bulk Distribution Mode
Each of the T3 ports can be used to support up to 28 multiplexed T1 lines, which are distributed to T1
service module ports in the switch. Called bulk distribution, this feature is performed when the SRM is
in “bulk mode.” The purpose of this feature is to allow large numbers of T1 lines to be supported over
T3 lines rather than over individual T1 lines.
Any T1 channel in a T3 line can be distributed to any eight port service module in any slot . Each
MGX 8230 shelf can support up to 64 T1 lines.
The SRM-3T3 can also be operated in “nonbulk mode” on a port-by-port basis. For a port configured in
nonbulk mode, bulk distribution is disabled and the SRM provides BERT and 1:N redundancy functions
only.
Linking the MGX-SRM-3T3/C to a destination card causes the switch to take CPE traffic through the
MGX-SRM-3T3/C rather than the T1 card’s line module. Linkage is a card-level condition. If you link
just one T1 channel on a service module to the MGX-SRM-3T3/C, the back card on the service module
becomes inoperative, so you must link all other T1 ports on that service module to the MGX-SRM-3T3/C
if you want them to operate.

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Service Resource Module

Module Requirements with Bulk Distribution and Redundancy
The use of bulk distribution affects the requirements for SRM and service module back cards:
•

With bulk distribution and 1:N redundancy support by way of the distribution bus, the service
modules do not use back cards.

•

For just 1:N redundancy by way of the redundancy bus, the supported service modules must have
back cards—including one special redundancy back card. E1 redundancy requires the
AX-R-RJ48-8E or AX-R-SMB-8E1 line module, and T1 redundancy requires the R-RJ48-8T1 line
module.

•

For bulk distribution, the T3 lines connect to an external multiplexer. The T1 lines on the other side
of the multiplexer connect to the CPE. The SRM converts the received traffic from its T3 lines to T1
channels and sends the data to linked service modules. For instructions on linking T1 channels and
card slots to the MGX-SRM-3T3/C, see Chapter 6, “Card and Service Configuration”

Installation Requirements for the MGX-SRM-3T3/C
The following are card-level characteristics that apply to any SRM installation:
•

Only MGX-SRM-3T3/C cards can be installed in slots 7 and 14.

•

No other service modules can be installed in slots 7 and 14. These slots do not have cell bus
connections. The SRM modules use a local bus to communicate with the PXM.

•

The PXM1 in slot 1 controls the SRM in slot 7. The PXM1 in slot 2 controlsthe SRM in slot 14.

•

Either SRM in slot 7 or 14 can be active (depending on the active PXM1).

SRM Illustration and LED Indicators
Table 2-1 and Table 2-2 describe the SRM-3T3 LED faceplate indicators.
Table 2-1

LED Indicators for the SRM-3T3/C

Type of LED

Color

Meaning

ACTIVE (ACT) LED

Green

Indicates card set is in active mode.

STANDBY (STBY)
LED

Yellow

Indicates card set is in standby mode.

FAIL (FAIL) LED

Red

Indicates BNM-155 card set has failed or the line
module is missing.

Table 2-2

Line Redundancy LED Indicators for the SRM-3T3/C

Type of LED

Color

Meaning

(1:N RED) LED

Green

On indicates 1:N redundancy has been invoked.
Off indicates 1:N redundancy is not active.

BERT (BERT) LED

Green

On indicates BERT function is active.

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Service Resource Module

Figure 2-9

MGX-SRM-3T3/C Card Set

BNM 3T3 M

CLEI Code Label

ACT
STBY
FAIL

LIN RED

SRM

Front card

Back card

S6181

3T3

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Chapter 2

Module and Service Descriptions
ATM UNI Service Module (AUSM)

ATM UNI Service Module (AUSM)
The main function of the AUSM cards is to provide an ATM UNI/NNI interface at T1 or E1 rates so that
ATM UNI user devices can transmit and receive traffic. This section contains the following information:
•

AUSM Features, page 2-15

•

AUSM Front Card Illustration and LED Description, page 2-17

•

Back Cards for the AUSM/B, page 2-18

AUSM Features
The MGX-AUSM-8T1/B and MGX-AUSM-8E1/B (AUSM) are multipurpose front cards that use an
eight-port T1 or E1 back card to provide native ATM UNI interfaces.
A single AUSM/B card can provide hot standby redundancy for all active AUSM/B cards of the same
type (1:N redundancy).
AUSM/B modules are supported by standards-based management tools, including Simple Network
Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP) for configuration and statistics
collection, and a command-line interface. Cisco’s WAN Manager service management tool provides full
graphical user interface support for connection and equipment management.

Quality of Service (QoS) Management
Consistent with Cisco’s intelligent quality of service (QoS) management features, AUSM/B cards
support per-VC queuing on ingress and multiple class-of-service queues on egress. AUSM/B cards fully
support continuous bit rate (CBR), variable bit rate (VBR), unspecified bit rate (UBR), and available bit
rate (ABR) service classes.

Inverse Multiplexing
AUSM/B cards also support ATM Forum-compliant inverse multiplexing for ATM(IMA). This
capability enables multiple T1 or E1 lines to be grouped into a single high-speed ATM port. This n x T1
and n x E1 capability fills the gap between T1/E1 and T3/E3, providing bandwidth up to 12 Mbps
(n x T1) or 16 Mbps (n x E1), without requiring a T3/E3 circuit.
Inverse Multiplexing for ATM
•

ATM Forum 1.0-compliant inverse multiplexing for ATM (IMA)

•

Support for differential delays of up to 200 milliseconds across the constituent T1s (up to 250 ms)
and E1s of an IMA group

•

With IMA disabled, each T1 or E1 interface configured as a single port running at full line rate

•

With IMA, any group of n x T1s or n x E1s can support an n x T1 or n x E1 port

•

With IMA, multiple IMA ports of any configuration supported per card (a specific T1 or E1 line can
be in only one T1/E1 or IMA port at a time)

•

Upon T1/E1 circuit failure, an IMA port automatically adjusts to continue operation over remaining
circuits

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ATM UNI Service Module (AUSM)

Physical Layer Features
All Cards
•

Transmitter is loop-timed to receiver or synchronized to shelf

•

Loop-up, loop-down pattern generation and verification

•

Transmission convergence sublayer functions per ITU G.804

•

LCV, LES, LSES, CV, ES, SES, SEFS, AISS, UAS performance statistics

•

Bit rate error test (BERT) and extended loopback pattern generation/verification (with optional
SRM)

•

1:N redundancy within a group of n + 1 AUSM/B cards of same type on a shelf (with optional SRM)

•

LOS, OOF, AIS, RAI alarms

•

Eight T1 (1.544 Mbps +/–50 bps) lines per card

•

B8ZS or AMI line coding

•

ANSI T1.408 extended Super Frame format line framing

•

ANSI T1.408 support for detection and display of received T1 ESF loopback codes on extended
Super Frame (ESF) data link

•

Cell transfer capacity 3623 cells/sec per T1

•

Eight E1 (2.048 Mbps +/–50 bps) lines per card

•

HDB3 or AMI line coding

•

ITU G.704 16-frame multiframe line framing and clear channel for E1

•

BERT and extended loopback pattern generation/verification (with optional SRM)

•

Cell transfer capacity 4528 cells/sec per E1 (G.704), 4830 cells/sec per E1 (clear channel)

T1 Cards

E1 Cards

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ATM UNI Service Module (AUSM)

AUSM Front Card Illustration and LED Description
The AUSM/B front card oversees all major functions of the ATM interface. It contains firmware for both
the T1 and the E1 line interfaces and downloads from the PXM1 the appropriate code when it recognizes
the back card type. An illustration of an eight-port AUSM/B front card appears in Figure 2-10. For
specifications on this card, refer to Appendix A, “Technical Specifications.”
Figure 2-10 AUSM/B-8T1 or AUSM/B-8E1 Front Card

CLEI Code Label

ACT
STBY
FAIL

PORT 1
PORT 2
PORT 3
PORT 4
PORT 5
PORT 6
PORT 7
PORT 8

AUSM

Front card

S6183

8T1/E1

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ATM UNI Service Module (AUSM)

Table 2-3 contains a list of eight-port LED indicators:
Table 2-3

Eight-Port AUSM/B LED Indicators

Type of LED

Color

Description

PORT LED

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.
Off indicates the port has not been activated (upped).

ACTIVE LED

Green

On indicates the card set is in active mode.

STANDBY LED

Yellow

Slow blink with Active LED off means the card is in the boot
state.
Fast blink with Standby LED on means card is receiving
firmware.
Fast blink indicates the service module is passing BRAM channel
information to the PXM1.
Steady yellow indicates the card is in Standby mode and the
firmware is executing ADMIN code.

FAIL LED

Red

Steady Red with Active and Standby LEDs off indicates either the
card is in the Reset condition, the card has failed, or the card set
is not complete (no line module).
Steady Red with Active LED on indicates the card was active
prior to failing.
Steady Red with Standby LED on indicates the card was standby
prior to failing.

Back Cards for the AUSM/B
The MGX-AUSM-8T1/B and MGX-AUSM-8E1/B use the generic eight-port T1 or E1 line modules that
operate with the eight-port service modules (see Figure 2-11 on page 2-19).
•

AX-RJ48-T1: provides eight RJ-48 connectors for T1 lines.

•

AX-RJ48-E1: provides eight RJ-48 connectors for E1 lines.

•

AX-SMB-E1: provides eight pairs of SMB connectors for E1 lines.

1:N Redundancy support for the AUSM requires the special versions of the RJ-45 back cards
(Figure 2-11 on page 2-19). These back cards are:

Note

•

AX-R-RJ48-T1

•

AX-R-RJ48-E1

•

AX-R-SMB-E1

Redundancy support differs for the MGX-AUSM-8T1/B and MGX-AUSM-8E1/B. For details on the
requirements for redundancy through an MGX-SRM-3T3/C, refer to “Service Resource Module,
page 2-12.”

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ATM UNI Service Module (AUSM)

Figure 2-11 RJ-48 and SMB Back Cards for the MGX-AUSM-8T1E1/B

RJ48-8E1

RJ48-8T1

RJ48-8E1

SMB-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

TX7

RX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
redundant
8-port
back card

E1 RJ48
redundant
8-port
back card

E1 SMB
redundant
8-port
back card

18739

TX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
back card

E1RJ48
back card

E1 SMB
back card

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Module and Service Descriptions

Frame Relay Service Modules

Frame Relay Service Modules
The primary function of the Frame Relay Service Modules (FRSM) is to convert between the Frame
Relay formatted data and ATM/AAL5 cell-formatted data. For an individual connection, you can
configure network interworking (NIW), service interworking (SIW), ATM-to-Frame Relay UNI (FUNI),
or frame forwarding. An FRSM converts the header format and translates the address for:
•

Frame Relay port number and DLCI

•

ATM-Frame UNI (FUNI) port number and frame address or frame forwarding port

•

ATM virtual connection identifier (VPI/VCI)

See Configuring Frame Relay Service, page 6-27 for instructions to configure the FRSMs.
This section contains the following information:
•

Features Common to All FRSMs, page 2-20.

•

Redundancy for Frame Service Modules, page 2-22.

•

Connection Types on the FRSM, page 2-22.

•

Types of Frame Service Modules, page 2-27.
– FRSMs for T1 and E1 Lines, page 2-27.
– FRSMs for T3 and E3 lines, page 2-32.
– FRSMs for Serial Connections, page 2-38.

Features Common to All FRSMs
This section describes features common to all FRSMs. For features specific to the individual module
types, see Types of Frame Service Modules, page 2-27. For information to configure the FRSMs, see
Configuring Frame Relay Service, page 6-27.

Data-Link Layer features
•

Each logical port on an FRSM independently configurable to run Frame Relay UNI, Frame Relay
NNI, ATM FUNI, or frame forwarding.

•

7E flags used to delineate frames (with bit stuffing to prevent false flags) and for interframe gaps.

•

One flag between frames is considered valid upon receipt.

•

Supports configuration of one- or two-flag minimum interframe gap for transmission.

•

Valid frame sizes from 5 up to 4510 octets.

Frame Relay features
•

Each logical port independently configurable as Frame Relay UNI or Frame Relay NNI.

•

Meets ANSI T1.618, using two-octet headers.

•

Interpreted CCITT-16 CRC at end of the frame (frame discard if in error).

•

Supports ITU-T Q.933 Annex A, ANSI T1.617 Annex D, and LMI local management for
semipermanent virtual circuits (both UNI and NNI portions); enhanced LMI provides
autoconfiguration of traffic management parameters for attached Cisco routers.

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Frame Relay Service Modules

Note

•

Frame Relay-to-ATM network interworking (FRF.5) and Frame Relay-to-ATM service interworking
(FRF.8), both transparent and translation modes, configured on a per-permanent virtual circuit
(PVC) basis.

•

Standards-based CIR policing and DE tagging/discarding.

•

End-to-end ForeSight® rate-based flow control option.

•

Capability to extend ForeSight closed-loop congestion management between two Cisco networks
across Frame Relay-UNI or Frame Relay-NNI using ANSI T1.618 consolidated link-layer
management (CLLM) messages.

•

Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

•

Standard ABR (TM 4.0 compliant).

Note: the Foresight option is not available on MGX-FRSM-HS1/B.

ATM FUNI features

Note

•

ATM Forum FUNI mode 1A supported.

•

Interpreted CCITT-16 CRC at end of the frame (frame discard if in error).

•

AAL5 mapping of user payload to ATM.

•

Supports 16 VPI values (15 plus the zero VPI); supports virtual path connections (VPCs) for all
nonzero VPI values (up to 15 VPCs).

•

Supports 64 VCI value.s

•

Supports OAM frame/cell flows.

•

Standards-based usage parameter control.

•

Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

•

Standard ABR (TM 4.0 compliant).

Note: the Foresight option is not available on MGX-FRSM-HS1/B.

Frame Forwarding Features
•

No assumptions made on the frame header format.

•

Interpreted CCITT-16 CRC at end of the frame (with frame dropping on an error).

•

If a connection is set up, all frames are routed to/from that connection; otherwise the frame is
discarded.

•

No translation/mapping attempted between frame header bits and ATM layer EFCI and DE bits.

•

A single set of Frame Relay traffic access parameters (for example, CIR) is configured for the
logical port in frame-forwarding mode; all arriving frames are treated as if they arrived without a set
DE bit; if the frame is determined to exceed the committed rate (exceeding CIR), the CLP of all cells
associated with that frame are set to indicate low priority; if the frame exceeds the total rate allowed
for committed and uncommitted traffic, the frame is discarded.

•

Support for high-priority, rt-VBR, nrt-VBR, VBR, and ABR-ForeSight QoS.

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Frame Relay Service Modules

•

Note

Standard ABR (TM 4.0 compliant).

Note: the Foresight option is not available on MGX-FRSM-HS1/B.

Redundancy for Frame Service Modules
FRSMs can have either hot standby, 1:1 redundancy, or 1:N redundancy.

Note

•

For 1:1 redundancy, a Y-cable is necessary.

•

MGX-FRSM-2CT3, MGX-FRSM-2T3E3, and MGX-FRSM-HS2 use 1:1 Y-cable redundancy.

•

For 1:N redundancy, an MGX-SRM-3T3/C is required (no Y-cabling).

•

Differences may exist in the way the MGX-SRM-3T3/C supports redundancy for a particular T1 or
E1 configuration. Refer to the section titled “Service Resource Module” in this chapter and the
Service Resource Module description in Chapter 6, “Card and Service Configuration”

The MGX-FRSM-HS1/B does not support redundancy.

Hot Standby
For hot standby, place the card sets in slots on the same card shelf and connect using an appropriate
Y-cable to connect each hot standby pair. To view the hot standby status of the system, use the
dsphotstandby command.

1:1 Redundancy
For 1:1 redundancy, place the card sets in adjacent slots and connect a Y-cable for each pair of active and
standby ports. On the CLI, configure the card for redundancy by executing the addred command. For
instructions on how to use the CiscoView application to configure redundancy, refer to the CiscoView
user-documentation.

1:N Redundancy
1:N redundancy for the eight-port FRSMs requires an MGX-SRM-3T3/C. With 1:N redundancy, a group
of service modules includes one standby module. For installation requirements, see “Service Resource
Module, page 2-12”. For configuration requirements, see the section on the MGX-SRM-3T3/C in
Chapter 6, “Card and Service Configuration”

Connection Types on the FRSM
The following sections describe NIW, SIW, FUNI, and Frame forwarding. Topics include translation and
congestion management.
•

Frame Relay-to-ATM Service Interworking, page 2-24

•

ATM Frame-to-User Network Interface, page 2-26

•

Frame Forwarding, page 2-26

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Frame Relay-to-ATM Network Interworking
Frame Relay-to-ATM network interworking (NIW) supports a permanent virtual connection (PVC)
between two Frame Relay users over a Cisco network or a multi-vendor network. The traffic crosses the
network as ATM cells. To specify NIW for a connection, add the connection with a channel type of
“network interworking.” For an illustration of a BPX 8620 network with NIW connections, see
Figure 2-12.
Figure 2-12 BPX 8620 Network with NIW Connections

Frame Relay
DS1
FRSM

BPX 8620 network
MGX 8850
PVCs

MGX 8430 FRSM

Frame Relay
DS1
FRAD
MGX 8850 FRSM
(router)

Frame Relay
DS1

17908

FRAD
(router)

Congestion Indication for NIW Connections
In addition to frame-to-cell and DLCI to VPI/VCI conversion, the network interworking feature maps
cell loss priority (CLP) and congestion information from Frame Relay to ATM formats. The CLP and
congestion indicators can be modified for individual connections using the cnfchanmap command.
Frame Relay–to–ATM Direction

Each Frame Relay/ATM network interworking connection can be configured as one of the following DE
to CLP mapping schemes:
•

DE bit in the Frame Relay frame is mapped to the CLP bit of every ATM cell generated by the
segmentation process.

•

CLP is always 0.

•

CLP is always 1.

ATM–to– Frame Relay Direction

Each Frame Relay/ATM network interworking connection can be configured as one of the following
CLP to DE mapping schemes:
•

If one or more ATM cells belonging to a frame has its CLP field set, the DE field of the Frame Relay
frame will be set.

•

No mapping from CLP to DE.

Congestion Indication
Congestion on the Frame Relay/ATM network interworking connection is flagged by the EFCI bit. The
setting of this feature is dependent on traffic direction, as described below.

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Frame Relay–to–ATM Direction

EFCI is always set to 0.
ATM–to–Frame Relay Direction

If the EFCI field in the last ATM cell of a segmented frame received is set, then FECN of the Frame
Relay frame will be set.

PVC Status Management
The management of ATM layer and FR PVC status management can operate independently. The PVC
status from the ATM layer is used when determining the status of the FR PVC. However, no direct
actions of mapping LMI A bit to OAM AIS is performed.

Frame Relay-to-ATM Service Interworking
By specifying “service interworking” as the channel type when adding a Frame Relay PVC to an FRSM,
all PVC data is subject to service interworking translation and mapping in both the Frame
Relay–to–ATM and ATM–to–Frame Relay directions. Figure 2-13 is an illustration of typical SIW
connections.
Figure 2-13 BPX 8600 Series Network with SIW Connections

T1 or E1
ATM FUNI CPE

BPX 8620 network
FRSM
MGX 8850 FRSM

MGX 8850
PVCs

RPM

ATM UNI CPE

FR UNI
CPE

T1 or E1
BPX 8620

T3, E3, OC3
ATM-UNI CPE

17909

B
X
M

In Figure 2-13, an MGX 8230 node on the right has three Frame Relay SIW connections terminating on
an FRSM. Three far-end terminations for these connections appear in other parts of Figure 2-13:
•

ATM FUNI (framed UNI) port on an FRSM

•

ATM UNI port on an RPM

•

ATM UNI port on a BPX 8600 series BXM card

In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, SIW maps cell loss priority and
congestion data between the Frame Relay and ATM formats and is FRF.8-compliant. It provides full
support for routed and bridged PDUs, transparent and translation modes, and VP translation.

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Cell Loss Priority
In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, the SIW feature maps cell loss priority
(CLP) and congestion information from Frame Relay-to-ATM formats and is FRF.8-compliant. It
provides full support for routed and bridged PDUs, transparent and translation modes, and VP
translation. The CLP and congestion parameters can be modified for individual connections with the
cnfchanmap command.
Frame Relay–to–ATM Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following
Discard Eligibility (DE) to Cell Loss Priority (CLP) schemes:
•

DE bit in the Frame Relay frame is mapped to the CLP bit of every ATM cell generated by the
segmentation process of the frame.

•

CLP is always 0.

•

CLP is always 1.

ATM–to–Frame Relay Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following
CLP to DE mapping schemes:
•

If one or more ATM cells belonging to a frame has its CLP set, the DE field of the Frame Relay
frame will be set.

•

DE is always 0.

•

DE is always 1.

Setting up the cell loss priority option is accomplished through the MGX 8220 cnfchanmap (configure
channel map) command.

Congestion Indication
Frame Relay–to–ATM Direction

Each Frame Relay– to–ATM service interworking connection can be configured as one of the following
Forward Explicit Congestion Notification (FECN) to Explicit-Forward Congestion Indicator (EFCI)
schemes:
•

FECN bit in the Frame Relay frame is mapped to the EFCI bit of every ATM cell generated by the
segmentation process of the frame.

•

EFCI is always 0.

•

EFCI is always 1.

ATM–to–Frame Relay Direction

Frame Relay– to–ATM service interworking connections use the following EFCI to FECN/BECN
mapping schemes:
•

If the EFCI bit in the last ATM cell of a segmented frame received is set to 1, the FECN of the Frame
Relay frame will be set to 1.

•

BECN is always set to 0.

•

Setting up the congestion indication option is accomplished through the cnfchanmap (configure
channel map) command.

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Command and Response Mapping
Command/Response Mapping is provided in both directions.
Frame Relay–to–ATM Direction

The FRSM maps the C/R bit of the received Frame Relay frame to the CPCS-UU least-significant bit of
the AAL5 CPCS PDU.
ATM to Frame Relay Direction
•

The least-significant bit of the CPCS-UU is mapped to the C/R bit of the Frame Relay frame.

Translation and Transparent Modes
Each service interworking (SIW) connection can exist in either translation or transparent mode. In
translation mode, the FRSM translates protocols between the FR NLPID encapsulation (RFC 1490) and
the ATM LCC encapsulation (RFC 1483). In transparent mode, the FRSM does not translate. Translation
mode support includes address resolution by transforming address resolution protocol (ARP, RFC 826)
and inverse ARP (inARP, RFC 1293) between the Frame Relay and ATM formats.

Frame Forwarding
The FRSM card can be configured as “Frame Forwarding” on a port-by-port basis.
Frame forwarding operates the same as standard Frame Relay except that the FRSM:
•

The 2-byte Q.922 header is not assumed/interpreted.

•

All frames received are mapped to a specific connection if it exists. Otherwise, the frames are
dropped.

•

No DE/CLP or FECN/EFI mapping is performed.

•

“Illegal header count” and “Invalid DLCI” statistics are not kept.

•

“Discarded frame count due to no connection” statistic is kept.

ATM Frame-to-User Network Interface
All FRSMs support the ATM Frame-based User-to-Network Interface (FUNI). When a frame arrives
from the FUNI interface, the FRSM removes the 2-byte FUNI header and segments the frame into ATM
cells by using AAL5. In the reverse direction, the FRSM assembles ATM cells from the network into a
frame by using AAL5, adds a FUNI header to the frame, and sends it to the FUNI port.

Loss Priority Indication
Loss Priority Indication mapping is provided in both directions:
FUNI-to-ATM Direction

The CLP bit on the FUNI header is mapped to the CLP bit of every ATM cell that is generated for the
FUNI frame.
ATM-to-FUNI Direction

CLP bit in the FUNI header is always set to 0.

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Congestion Indication
The FRSM maps congestion indication in both directions:
Congestion Indication mapping is provided in both directions
FUNI-to-ATM Direction

EFCI is set to 0 for every ATM cell generated by the segmentation process.
ATM-to-FUNI Direction

If the EFCI field in the last ATM cell of a received segmented frame is set to 1, the CN bit in the FUNI
header is set to 1. The two reserve bits (the same positions as C/R and BECN in Frame Relay header)
are always set to 0.

Types of Frame Service Modules
There are three types of FRSMs:

Note

•

FRSMs for T1 and E1 Lines, page 2-27.

•

FRSMs for T3 and E3 lines, page 2-32.

•

FRSMs for Serial Connections, page 2-38.

For hardware and other specifications on the FRSMs, refer to Appendix A, “Technical
Specifications.” For descriptions of how to configure the card, lines, and ports and add Frame Relay
connections, refer to Chapter 6, “Card and Service Configuration”

FRSMs for T1 and E1 Lines
The eight-port FRSMs for T1 or E1 lines support channelized or unchannelized service. These cards
include the following:
•

AX-FRSM-8T1: supports up to eight fractional T1 line interfaces.

•

AX-FRSM-8E1: supports up to eight fractional E1 line interfaces.

•

AX-FRSM-8T1-C: supports up to eight channelized T1 line interfaces.

•

AX-FRSM-8E1-C: supports up to eight channelized E1 line interfaces.

FRSM for T1 features
The FRSM-8T1 and FRSM-8T1-C each provide eight T1 interfaces for full-duplex communications at
up to 1.544 Mbps.
Each T1 line consists of an RJ-48, along with three LED indicators for line status. The FRSM-8T1
supports fractional and unchannelized T1 port selection on a per-T1 basis. The FRSM-8T1-C allows full
DS0 and n x DS0 channelization of the T1s, for a maximum of 192 ports per FRSM-8T1-C.
Key Features include:
•

Eight T1 (1.544 Mbps +/-50 bps or 32 ppm) lines

•

B8ZS or AMI line coding

•

ANSI T1.408 extended superframe format line framing

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•

Each interface configurable as a single port (FRSM-8T1) or up to 24 ports (FRSM-8T1-C) running
at full line rate, at 56 or n x 64 kbps

•

Bit error rate tester (BERT) and extended loopback pattern generation/verification (with optional
SRM)

•

1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)

•

LOS, OOF, AIS, RAI alarms

•

Transmitter loop-timed to receiver or synchronized to shelf

•

Supports up to 1000 virtual connections per card

FRSM for E1 features
The FRSM-8E1 and FRSM-8E1-C each provide eight E1 interfaces for full-duplex communications at
up to 2.044 Mbps. Each E1 line consists of an RJ-48 and SMB mini-connector, along with three LED
indicators for line status.
The FRSM-8E1 supports fractional and unchannelized E1 port selection on a per-E1 basis. The
FRSM-8E1-C allows full DS0 and n x DS0 channelization of the E1s, for a maximum of 248 ports per
FRSM-8E1-C.
Key Features include:
•

Eight E1 (2.048 Mbps +/-50 bps or 32 ppm) lines

•

HDB3 or AMI line coding

•

ITU G.704 16-frame multiframe line framing and clear channel E1

•

Each interface configurable as a single port (FRSM-8E1) or up to 31 ports (FRSM-8E1-C) running
at full line rate, at 56 or n x 64 kbps

•

BERT and extended loopback pattern generation/verification (with optional SRM)

•

1:N redundancy within a group of n + 1 FRSM cards on a shelf (with optional SRM)

•

LOS, OOF, AIS, RAI alarms

•

Transmitter loop-timed to receiver or synchronized to shelf

•

Supports up to 1000 virtual connections per card

LED Indicators
Table 2-4 and Table 2-5 describe the FRSM T1/E1 LED faceplate indicators.
Table 2-4

Card Level LED Indicators for the FRSM T1/E1

Type of LED

Color

Meaning

ACT LED

Green

Active

STBY LED

Yellow

Standby

FAIL LED

Red

Fail

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Table 2-5

Line Level LED Indicators for the FRSM T1/E1

Type of LED

Color

Meaning

Individual Port LEDs

Green

Active and OK

Red

Active and Local Alarm

Yellow

Active and Remote Alarm

Card Illustrations
•

Figure 2-14 is an illustration of the front card (applies to both the MGX-FRSM-8T1 and
MGX-FRSM-8E1).

•

Figure 2-15 is an illustration of the FRSM T1 and E1 back cards.
– AX-RJ48-8T1 is the T1 back card. An AX-R-RJ48-8T1 is required for redundancy support.
– AX-RJ48-8E1 and AX-SMB-8E1 are the E1 back cards for RJ48 and SMB connections. A

special AX-R-SMB-8E1 card is required for redundancy support.

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Figure 2-14 MGX-FRSM-8T1

ACT
STBY
FAIL

PORT 1
PORT 2
PORT 3
PORT 4
PORT 5
PORT 6
PORT 7

FRSM
8T1

17912

PORT 8

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Figure 2-15 RJ-48 and SMB Back Cards for the MGX-FRSM-8T1/E1

RJ48-8E1

RJ48-8T1

RJ48-8E1

SMB-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

TX7

RX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
redundant
8-port
back card

E1 RJ48
redundant
8-port
back card

E1 SMB
redundant
8-port
back card

18739

TX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
back card

E1RJ48
back card

E1 SMB
back card

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FRSMs for T3 and E3 lines
The FRSMs for T3 and E3 lines include the following:
•

MGX-FRSM-2CT3: provides two channelized T3 interfaces for high-density n x DS0 and DS1
frame services. The FRSM-2CT3 supports up to 4000 virtual connections per card.

•

MGX-FRSM-2T3E3: provides unchannelized Frame Relay service over two T3 or E3 lines. This
module can also support subrate T3 or E3 for tiered DS3 on each physical port. The FRSM-2T3E3
supports up to 2000 virtual connections per card.

Features
This section describes the features specific to the T3 and E3 interfaces. See Features Common to All
FRSMs, page 2-20 for a description of features that apply to all FRSM modules.
T3 Interfaces
•

Two DSX-3 (44.736 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors
per port (separate RX and TX)

•

B3ZS line coding

•

Pulse shape conforming to ANSI T1.102.1993

•

C-bit parity and M13 line framing formats

•

Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

•

T3 bit error rate tester (BERT) and extended loopback pattern generation/verification

•

1:1 redundancy with Y-cabling for T3 FRSM cards of the same type

•

LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note

Subrate capability is not supported on Kentrox equipment.

E3 Interfaces
•

Two G.703 (34.368 Mbps +/-20 ppm) interfaces with dual female 75-ohm BNC coaxial connectors
per port (separate RX and TX)

•

HDB3 line coding

•

Pulse shape conforming to ITU G.703

•

ITU G.751 line framing format

•

Scrambling and subrate (FRSM-2T3E3) support of major DSU vendors

•

E3 BERT and extended loopback pattern generation/verification

•

1:1 redundancy with Y-cabling for T3 FRSM cards of the same type

•

LOS, OOF, AIS, RAI, FEBE alarm detection/generation support

Note

Subrate capability is not supported on Kentrox equipment.

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Card Combinations
The following card combinations are supported:

Note

•

MGX-FRSM-2CT3 front card with the BNC-2T3 back card

•

MGX-FRSM-2T3E3 front card with a BNC-2T3 or BNC-2E3 back card

A special BNC-2E3A back card applies to Australia only. The BNC-2E3 applies to all other sites that
require E3 lines.

Illustrations
For Illustrations of the Very High Speed FRSM front and back cards, see the following illustrations:
•

For the MGX-FRSM-2CT3 front card, see Figure 2-16 on page 2-34.

•

For the MGX-FRSM-2T3E3 front card, see Figure 2-17 on page 2-35.

•

For the MGX-BNC-2T3 back card, see Figure 2-18 on page 2-36.

•

For the MGX-BNC-2E3 back card, see Figure 2-19 on page 2-37.

FRSM-2T3E3 LED Indicators
Table 2-6 and Table 2-7 describe the FRSM-2T3E3 LED faceplate indicators.
Table 2-6

Card Level LED Indicators for the FRSM-2T3E3

Type of LED

Color

Meaning

ACT LED

Green

Active

STBY LED

Yellow

Standby

FAIL LED

Red

Fail

Table 2-7

Line Level LED Indicators for the FRSM-2T3E3

Type of LED

Color

Meaning

Individual Port LEDs

Green

Active and OK

Red

Active and Local Alarm

Yellow

Active and Remote Alarm

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Figure 2-16 MGX-FRSM-2CT3

CLEI Code Label

ACT
STBY
FAIL

PORT 1

FRSM
2CT3

22169

PORT 2

Front Card

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Figure 2-17 MGX-FRSM-2T3E3

CLEI Code Label

ACT
STBY
FAIL

PORT 1

FRSM
2T3E3

22170

PORT 2

Front Card

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Figure 2-18 BNC-2T3

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

12209

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Figure 2-19 BNC-2E3

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

12209

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FRSMs for Serial Connections
The FRSMs that support serial connections include the following:
•

MGX-FRSM-HS2: provides unchannelized Frame Relay service over two HSSI lines on the
SCSI2-2HSSI back card. Each port can operate in either DTE or DCE mode.

•

MGX-FRSM-HS1/B: supports four V.35 or four X.21 ports. Each port can operate in DTE or DCE
mode. The mode depends on the type of attached cable. See MGX-FRSM-HS1/B Cabling, page 2-39
to determine the correct cabling for the intended mode of each port.

FRSM-HS1/B X.21 and V.35 Interfaces
Features specific to the FRSM-HS1/B with X.21 and V.35 interfaces are:
•

Four X.21 or four V.35 lines

•

DCE/DTE selection on a per-port basis

•

As DCE, clock speeds of 48 Kbps, 56 Kbps, n x 64 Kbps up to 2 Mbps, n x 1.5 Mbps and n x 2 Mbps,
up to 8 Mbps, are supported

•

As DTE, obtains clock from line, up to 8 Mbps

•

The total maximum throughput of all lines on a card is 16Mbps

•

Supports 200 DLCIs per card

•

Support for per-VC queueing on ingress with closed-loop traffic management

•

Support for two priority levels of egress port queues for data traffic

•

Various DCE/DTE loopbacks

FRSM-HS2 HSSI Interfaces
Features specific to the FRSM-HS2 with HSSI interfaces are:
•

Two HSSI lines

•

DCE/DTE selection on a per-port basis

•

As DCE, clock speeds of n x 1.5 Mbps and n x 2 Mbps, up to 52 Mbps, are supported

•

As DTE, obtains clock from line, up to 52 Mbps

•

Supports 2000 DLCIs per card

•

Support for per-VC queueing on ingress with closed-loop traffic management

•

Support for five classes of service (high-priority, rt-VBR, nrt-VBR, ABR, UBR) for data traffic

•

Various DCE/DTE loopbacks

•

1:1 redundancy with Y-cabling for FRSM-HS2 cards

•

MGX-FRSM-HS2 with a SCSI2-2HSSI back card

•

MGX-FRSM-HS1/B with a MGX-12IN1-S4 back card

•

For the MGX-FRSM-HS2 front card, see Figure 2-20 on page 2-41.

Card Combinations

Illustrations

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•

For the MGX-SCSI2-2HSSI back card, see Figure 2-22 on page 2-43.

•

For the MGX-FRSM-HS1/B front card, see Figure 2-21 on page 2-42.

•

For the multifunction MGX-12IN1-S4 back card, see Figure 2-23 on page 2-44. This back card
supports four V.35 or four X.21 ports.

LED Indicators
Table 2-8 and Table 2-9 describe the FRSM T1/E1 LED faceplate indicators for both the FRSM-HS1/B
and the FRSM-HS2.
Table 2-8

Card Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2

Type of LED

Color

Meaning

ACT LED

Green

Active

STBY LED

Yellow

Standby

FAIL LED

Red

Fail

Table 2-9

Line Level LED Indicators for the FRSM-HS1/B and the FRSM-HS2

Type of LED

Color

Meaning

Individual Port LEDs

Green

Active and OK

Red

Active and Local Alarm

Yellow

Active and Remote Alarm

MGX-FRSM-HS1/B Cabling
The cable models come from the Cisco 12-in-1 series of cables. (See Table 2-10.) Each cable can have
a male or female connector at the far end. Also, the available clock sources depend on the mode. In DTE
mode, the clock source is either line or ST (ST is a wire in the cable). For DCE, the clock source is the
front card.
See Table 2-11 for the relationship between cabling and modes and Table 2-12 for part numbers.
Table 2-10 12IN1-S4 Back Card Cable Types

Cable Type

X.21

V.35

DCE

X.21 DCE

V.35 DCE

DTE

X.21 DTE

V.35 DTE

Table 2-11 Cabling and Clock Sources for the MGX-FRSM-HS1/B

Mode

Type of Cable

Clock Source

Mode of Far End

DTE

line

DCE (male or female connector at far
end)

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Table 2-11 Cabling and Clock Sources for the MGX-FRSM-HS1/B

Mode

Type of Cable

Clock Source

Mode of Far End

DCE

internal

DTE (male or female connector at far
end)

DTE_ST

DTE

ST line

DCE (male or female connector at far
end)

Table 2-12 Cabling Types and Part Numbers X.21 and V.35

Note

Type of Cable

Far End Connector

Part Number

X.21 DTE

male (standard)

72-1440-01

X.21 DCE

female (standard)

72-1427-01

V.35 DTE

male (standard)

72-1428-01

V.35 DTE

female (atypical)

72-1436-01

V.35 DCE

female (standard)

72-1429-01

V.35 DCE

male (atypical)

72-1437-01

V.35 DTE-DCE

72-1441-01

Straight-through

72-1478-01

Loopback plug

72-1479-01

The cable type and part number are printed on a plastic band located near the smaller connector.

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Figure 2-20 MGX-FRSM-HS2

CLEI Code Label

ACT
STBY
FAIL

PORT 1

FRSM
HS2

17948

PORT 2

Front Card

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Figure 2-21 MGX-FRSM-HS1/B Front Card Faceplate

CLEI Code Label

ACT
STBY
FAIL

PORT 1

FRSM
HS1/B

26695

PORT 2

Front Card

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Figure 2-22 SCSI2-2HSSI

SCSI2-2HSSI-LM

P
O
R
T
1

P
O
R
T

17949

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Figure 2-23 12IN1 S4 Back Card Faceplate

12-IN-1
4S

ENABLED

P
O
R
T
1

P
O
R
T
2

P
O
R
T
3

26696

P
O
R
T
4

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Circuit Emulation Service Modules
The main function of the Circuit Emulation Service Module (CESM) is to provide a constant bit rate
(CBR) circuit emulation service by converting data streams into CBR AAL1 cells for transport across
an ATM network. The CESM supports the CES-IS specifications of the ATM Forum.
There are two types of CESM modules:
•

CESM for T1 and E1 lines, page 2-45.

•

CESM for T3 and E3 lines, page 2-50.

CESM for T1 and E1 lines
The eight-port AX-CESM-8T1 and AX-CESM-8E1 models allow individual physical ports to be
configured for structured or unstructured data transfer. The CESM provides constant-bit-rate (CBR)
services over an ATM network. It allows circuit-based equipment, such as PBXs, to be interconnected
over an ATM backbone via CBR connections. The eight port CESM cards support both channelized
(n x 64 Kbps) and unchannelized (T1/E1) circuit-based equipment. In ATM Forum terminology, the
terms structured data transfer (SDT) and unstructured data transfer (UDT) are used for channelized and
unchannelized circuit emulation, respectively.
In addition, flexible clocking mechanisms are provided to meet different application requirements.
Synchronous clocking and asynchronous clocking, using either SRTS or Adaptive clock recovery, are
both supported.
As an enhancement, dynamic bandwidth allocation is supported via on-hook/off-hook detection to
reduce backbone bandwidth consumed when it is not required by the applications. This allows other
traffic streams, such as VBR and ABR traffic, to take advantage of the bandwidth normally reserved for
the circuit traffic.

CESM T1 and E1 Features
The eight port CESM cards offer the following key features for both T1 and E1 interfaces:
•

Standards-based AAL1

•

Compliant with ATM Forum CES---V.2.0

•

Choice of structured or unstructured data transfer per physical interface

•

Time slots must be contiguous for n x 64-kbps fractional T1/E1 service

•

Any n x 64-kbps channel can be mapped to any virtual circuit (VC)

•

Choice of partially filled AAL1 cells per VC

•

Supports Super Frame (SF) and Extended Superframe (ESF) framing modes

•

Supports synchronous clocking for both UDT and SDT

•

Supports asynchronous clocking for UDT, with SRTS and adaptive clock recovery methods

•

ON/OFF hook detection and idle suppression using channel-associated signaling (CAS)

•

Supports physical T1/E1 interfaces via back cards or higher speed channelized interfaces using
TDM infrastructure on backplane (SRM)

•

Traffic is mapped between service interfaces and the ATM backplane using standards-compliant
adaptation. Consistent with Cisco's intelligent quality-of-service (QoS) management features,
CESM cards support per-VC express queuing.

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•

A single T1/E1 CESM card can provide standby redundancy for all active CESM cards of the same
type in the shelf (1:N redundancy), with SRM.

•

CESM cards are supported by standards-based management tools, including Simple Network
Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP) for configuration and
statistics collection, and a command-line interface. Cisco WAN Manager also provides full
graphical user interface (GUI) support for connection and equipment management.

1:N Redundancy for the CESM T1/E1
Redundancy for the AX-CESM-8T1 and AX-CESM-8E1 is available through the MGX-SRM-3T3/C.
•

1:N redundancy requires that the group contain one redundancy back card.

•

The redundancy back card must be the special R-RJ45 version (AX-R-RJ48-8T1-LM or
AX-R-SMB-8E1-LM).

For information on installation requirements, refer to the Service Resource Module, page 2-12. For
configuration requirements, see the “Service Resource Module” section on page 6-49.
For instructions on how to use the CiscoView application to configure redundancy, refer to the
CiscoView user-documentation.

Card Combinations
A card set has an AX-CESM-8T1 or AX-CESM-8E1 front card and one of the following back cards:
•

AX-RJ48-8T1-LM

•

AX-R-RJ48-8T1-LM (for redundancy support)

•

AX-RJ48-8E1-LM

•

AX-SMB-8E1-LM

•

AX-R-SMB-8E1-LM (for redundancy support)

CESM T1/E1 Illustrations
•

Figure 2-24 on page 2-48 shows the Front Cards for the Eight-Port CESM (T1 and E1).

•

Figure 2-25 on page 2-49 shows the RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1.

LED Indicators for the Eight-Port CESM
The description of the LEDs on the eight-port CESM correspond to the illustration in Figure 2-24 on
page 2-48.
Table 2-13 LED Indicators for Eight-Port CESM

Type of LED

Color

Meaning

PORT LEDs

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port. Off indicates
the port has not been activated (upped).

Yellow

Yellow indicates a remote alarm on the port. Off
indicates the port has not been activated (upped).

Green

On indicates the card set is in active mode.

ACT LED (Active)

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Table 2-13 LED Indicators for Eight-Port CESM (continued)

Type of LED

Color

Meaning

STBY LED (Standby)

Yellow

Slow blink without the Active LED indicates the card
is in the boot state.
Fast blink with the Standby LED indicates the card is
being downloaded.
Fast blink indicates the service module is passing
BRAM channel information to the PXM1
Steady yellow indicates the card is in Standby mode
and the firmware is executing ADMIN code.

FAIL LED

Red

Steady Red with Active and Standby LEDs off
indicates either the card is in the Reset condition, the
card has failed, or the card set is not complete (no line
module).
Steady Red with Active LED on indicates the card was
active prior to failing.
Steady Red with Standby LED on indicates the card
was standby prior to failing.
Both standby and red LED lit indicates self-test failure.

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Figure 2-24 Front Cards for the Eight-Port CESM

•••••

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

PORT 7

PORT 8

CESM

8T1

8E1

T1 Front card

E1 Front card

17689

•••••

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Figure 2-25 RJ-48 and SMB Back Cards for the MGX-CESM-8T1E1

RJ48-8E1

RJ48-8T1

RJ48-8E1

SMB-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

TX4

RX5

TX5

RX6

TX6

RX7

TX7

RX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
redundant
8-port
back card

E1 RJ48
redundant
8-port
back card

E1 SMB
redundant
8-port
back card

18739

TX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
back card

E1RJ48
back card

E1 SMB
back card

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CESM for T3 and E3 lines
The MGX-CESM-T3/E3 supports unstructured data transfer over a single T3 or E3 physical port at
speeds of 44.736 Mbps (T3) or 34.368 Mbps (E3). Only synchronous timing is supported.
MGX-CESM-T3/E3 is a two-card set consisting of a front card and either a T3 back card or an E3 back
card. Each back card provides two T3 or E3 ports (each port consisting of two BNC connectors). Only
port one is available on the back card when used with the CESM-T3/E3 front card. 1:1 redundancy is
supported through a Y-cable on the line module back cards.
•

Figure 2-26 on page 2-52 is an illustration of the MGX-CESM-T3/E3 front card.

•

An illustration of the CESM back card for T3 lines is shown in Figure 2-27 on page 2-53.

•

An illustration of the CESM back card for E3 lines is shown in Figure 2-28 on page 2-54.

CESM-T3/E3 Features
CESM cards support circuit emulation services using standards-based adaptation layers over ATM. The
CESM-T3E3 uses AAL1 for T3 or E3 unstructured transfer mode operation, per the ATM Forum's
Circuit Emulation Specification, Version 2.0:
•

Unstructured Support: supports T3/E3 unstructured data transfer.

•

Synchronous clocking: synchronous timing mode only supported. Must derive clock from shelf.

•

Onboard BERT: BERT support using on board BERT controller. BERT commands executed on
T3/E3 card.

•

Maximum number of connections: Maximum number of connections is one. In the unstructured
mode, one logical port is used to represent the T3/E3 line and one connection is added to the port to
emulate the circuit.

•

Programmable egress buffer size and CDV tolerance settings are supported for flexible support of
jitter and latency requirements.

•

Bit count integrity is maintained when AAL1 lost-cell condition is detected.

•

The CESM card provides ingress/egress data and signaling trunk conditioning per VC as per ATM
Forum CES V2.0.

•

T3/E3 CESM cards can be Y-cabled to provide 1:1 hot standby redundancy of the CESM.

•

CESM cards are supported by standards-based management tools, including SNMP, TFTP (for
configuration/statistics collection), and a command-line interface. The Cisco WAN Manager and
CiscoView tools also provide full graphical user interface management support.

•

One DSX-3 (44.736 Mbps +/-40 ppm) interfaces with dual female 75-ohm BNC coaxial connectors
per port (separate RX and TX)

•

B3ZS line coding

•

Pulse shape conforming to ANSI T1.102

•

T3 bit error rate tester (BERT) and extended loop-up, loop-down pattern generation and verification

•

1:1 redundancy with Y-cabling for T3 CESM cards of the same type

•

LOS alarm detection/generation support

•

Transmitter loop-timed to receiver or synchronized to shelf

T3 Interfaces

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E3 Interfaces
•

One G.703 (34.368 Mbps +/-20 ppm) interface with dual female 75-ohm BNC coaxial connectors
per port (separate RX and TX)

•

HDB3 line coding

•

Pulse shape conforming to ITU G.703

•

E3 BERT and extended loop-up, loop-down pattern generation and verification

•

1:1 redundancy with Y-cabling for E3 CESM cards of the same type

•

LOS alarm detection/generation support

•

Transmitter loop-timed to receiver or synchronized to shelf

LED Indicators
Table 2-14 LED Indicators for T3/E3 CESM

Type of LED

Color

Meaning

ACT LED (Active)

Green

On indicates the card set is in active mode.

STBY LED (Standby)

Yellow

FAIL LED

PORT LEDs

Red

•

Slow blink with the Active LED off indicates the card is
in the boot state.

•

Fast blink with the Standby LED indicates the receiving
firmware.

•

Fast blink indicates the service module is passing BRAM
channel information to the PXM1.

•

Steady yellow indicates the card is in Standby mode and
the firmware is executing ADMIN code.

•

Steady red with Active and Standby LEDs off indicates
either the card is in the Reset condition, the card has
failed, or the card set is not complete (no line module).

•

Steady red with Active LED on indicates the card was
active prior to failing.

•

Steady red with Standby LED on indicates the card was
standby prior to failing.

•

Both standby and red LED lit indicates self-test failure.

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

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CESM T3/E3 Illustrations
•

The MGX-CESM-T3/E3 front card is shown in Figure 2-26 on page 2-52.

•

BNC-2T3 Back Card for the CESM-T3/E3 is shown in Figure 2-27 on page 2-53.

•

BNC-2E3 Back Card for the CESM-T3/E3 is shown in Figure 2-28 on page 2-54.

Figure 2-26 CESM-T3/E3 Front Card

¥¥¥¥¥

ACT
STBY
FAIL

CESM
T3/E3

Sxxx3

PORT 1

Front card

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Figure 2-27 BNC-2T3 Back Card for the CESM-T3/E3

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

12209

Note

Only port one is available on the CESM T3/E3 back card when used with the CESM-T3/E3 front
card.

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Figure 2-28 BNC-2E3 Back Card for the CESM-T3/E3

BNC-2T3

SIGNAL
RX

PORT 1

SIGNAL
RX

PORT 2

12209

Note

Only port one is available on the CESM T3/E3 back card when used with the CESM-T3/E3 front
card.

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Voice Service: The VISM
The Voice Interworking Service Module (VISM) is a front and back card set designed to transport
digitized voice signals across a packet network. This provides an interface or gateway between
conventional voice TDM networks and networks based upon packet switching technology.
There are two types of VISM front cards:
•

MGX-VISM-8T1: supports up to eight T1 lines carrying digitized voice

•

MGX-VISM-8E1: supports up to eight E1 lines carrying digitized voice.

VISM Documentation
Installation, configuration and support for the VISM services are not included in this manual. For more
information on the VISM, refer to the following Cisco Systems publications:
•

For information on VISM features and configuration, refer to Voice Interworking Service Module
Installation and Configuration.

•

For up to date information on VISM version support and features, refer to the Software Release
Notes Cisco WAN MGX 8850, 8230, and 8250 Software.

Summary of Features Supported with VISM 2.0.1
The following features are supported with VISM 2.0.1 on the MGX 8230.

Note

The MGX 8230 supports VISM 2.0.1 and higher. All of the features available in VISM 1.5.5 are also
available in version 2.0.1
VoIP using RTP (RFC 1889)

VISMR1.5 supports standards-based VoIP using RTP (RFC1889) and RTCP protocols. This allows
VISM to interwork with other VoIP Gateways.
VoAAL2 (With sub-cell multiplexing) PVC

The VISM supports standards-compliant AAL2 adaptation for the transport of voice over an ATM
infrastructure. AAL2 trunking mode is supported.
Codec Support

G.711 PCM (A-law, Mu-law), G.726, G.729a/b
Eight T1/E1 Interfaces

The VISM supports eight T1 or eight E1 interfaces when G.711 PCM coding is used. For higher
complexity coders such as G.726-32K and G.729a-8K, the density drops to six T1 or five E1 interfaces
(max 145 channels).
1:N Redundancy

1:N redundancy using SRM.

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T3 Interfaces (via SRM Bulk Distribution)

T3 interfaces are supported using the SRM’s bulk distribution capability. In this case, the T3 interfaces
are physically terminated at the SRM module. The SRM module breaks out the individual T1s and
distributes the T1s via the TDM backplane bus to the individual VISM cards for processing.
Echo Cancellation

The VISM provides on-board echo cancellation on a per-connection basis. Up to 128 msec
user-configurable near-end delay can be canceled. The echo cancellation is compliant with ITU G.165
and G.168 specifications.
Voice Activity Detection (VAD)

VISM uses VAD to distinguish between silence and voice on an active connection. VAD reduces the
bandwidth requirements of a voice connection by not generating traffic during periods of silence in an
active voice connection. At the far-end, comfort noise is generated.
Fax/Modem Detection for ECAN and VAD Control

The VISM continually monitors and detects fax and modem carrier tones. When carrier tone from a fax
or modem is detected, the connection is upgraded to full PCM to ensure transparent connectivity. Fax
and modem tone detection ensures compatibility with all voice-grade data connections.
CAS Tunneling via AAL2 (For AAL2 Trunking Mode)

The VISM in AAL2 mode facilitates transport of CAS signaling information. CAS signaling information
is carried transparently across the AAL2 connection using type 3 packets. In this mode, VISM does not
interpret any of the signaling information.
PRI Tunneling via AAL5 (For AAL2 Trunking Mode)

VISM supports transport of D-ch signaling information over an AAL5 VC. The signaling channel is
transparently carried over the AAL5 VC and delivered to the far-end. In this mode, VISM does not
interpret any of the signaling messages.
Voice CAC

VISM can be configured to administer Connection Admission Control (CAC) so that the bandwidth
distribution between voice and data can be controlled in AAL2 mode.
Type 3 Packet for DTMF

The VISM in AAL2 mode facilitates transport of DTMF signaling information. DTMF information is
carried transparently across the AAL2 connection using type 3 packets.
Dual (Redundant) PVCs for Bearer/Control

The VISM provides the capability to configure two PVCs for bearer/signaling traffic terminating on two
external routers (dual-homing). VISM continually monitors the status of the active PVC by using OAM
loopback cells. Upon detection of failure, the traffic is automatically switched over to the backup PVC.
64 K Clear Channel Transport

The VISM supports 64 Kbps clear channel support. In this mode, all codecs are disabled and the data is
transparently transported through the VISM.
DTMF Relay for G.729

In VoIP mode, DTMF signaling information is transported across the connection using RTP NSE
(Named Signaling Event) packets

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MGCP 0.1 for VoIP with Softswitch Control

VISM supports Media Gateway Control Protocol (MGCP) Version 0.1. This open protocol allows any
Softswitch to interwork with the VISM module.
Resource Coordination via SRCP

Simple Resource Control Protocol (SRCP) provides a heartbeat mechanism between the VISM and the
Softswitch. In addition, SRCP also provides the Softswitch with gateway auditing capabilities.
Full COT Functions

VISM provides the capability to initiate continuity test as well as provide loopbacks to facilitate
continuity tests when originated from the far-end.
Courtesy Down

This feature provides a mechanism for graceful upgrades. By enabling this feature, no new calls are
allowed on the VISM while not disrupting the existing calls. Eventually, when there are no more active
calls, the card is ready for a upgrade and/or service interruption.
PRI Backhaul to the Softswitch Using RUDP

The PRI backhaul capability provides PRI termination on the VISM with the Softswitch providing call
control. ISDN Layer 2 is terminated on the VISM and the layer 3 messages are transported to the
Softswitch using RUDP.
Latency Reduction (<60 ms round-trip)

Significant improvements have been made to bring the round-trip delay to less than 60 ms.
Codecs Preference

VISM provides the capability to have the codecs negotiated between the two end-points of the call. The
VISM can be configured, for a given end-point, to have a prioritized list of codecs. Codec negotiation
could be directly between the end-points or could be controlled by a Softswitch
31 DS0 for E1 with 240 Channels Only

While all 31 DS0s on a E1 port can be used, there is a limitation of 240 channels per card.

VISM Redundancy
The VISM redundancy strategy is the same as for any of the eight port cards in the MGX 8230.
•

For VISM-8T1, 1:N redundancy is supported using the SRM-3T3.

•

For VISM-8E1, 1:N redundancy is supported only via LMs using the SRM-3T3 or the SRM-T1E1.

Card Combinations
A card set has an VISM-8T1 or VISM-8E1 front card and one of the following back cards:
•

AX-RJ48-8T1-LM

•

AX-R-RJ48-8T1-LM (for redundancy support)

•

AX-RJ48-8E1-LM

•

AX-SMB-8E1-LM

•

AX-R-SMB-8E1-LM (for redundancy support)

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VISM Card Illustrations and LED Description
Table 2-15 is a description of the VISM card LED indicators.
See Figure 2-29 for an illustration of the VISM Front Cards.
See Figure 2-30 for an illustration of the VISM Back Cards.

Table 2-15 LED Indicators for VISM

Type of LED

Color

Meaning

ACT LED (Active)

Green

On indicates the card set is in active mode.

STBY LED (Standby)

Yellow

FAIL LED

PORT LEDs

Red

•

Slow blink with the Active LED off indicates the card is
in the boot state.

•

Fast blink with the Standby LED indicates the receiving
firmware.

•

Fast blink indicates the service module is passing BRAM
channel information to the PXM1.

•

Steady yellow indicates the card is in Standby mode and
the firmware is executing ADMIN code.

•

Steady red with Active and Standby LEDs off indicates
either the card is in the Reset condition, the card has
failed, or the card set is not complete (no line module).

•

Steady red with Active LED on indicates the card was
active prior to failing.

•

Steady red with Standby LED on indicates the card was
standby prior to failing.

•

Both standby and red LED lit indicates self-test failure.

Green

Green indicates the port is active.

Red

Red indicates a local alarm on the port.

Yellow

Yellow indicates a remote alarm on the port.

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Figure 2-29 VISM Front Cards

ACT

STBY

FAIL

PORT 1

PORT 2

PORT 3

PORT 4

PORT 5

PORT 6

PORT 7

PORT 8

VISM

8T1

8E1

T1 front card

E1 front card

18738

CLEI code label

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Figure 2-30 VISM Back Cards
•

RJ48-8E1

RJ48-8T1

RJ48-8E1

SMB-8E1

RX1

TX1

RX2

TX2

RX3

TX3

RX4

5
TX4

RX5

TX5

RX6

TX6

RX7

TX7

RX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
redundant
8-port
back card

E1 RJ48
redundant
8-port
back card

E1 SMB
redundant
8-port
back card

18739

TX8

R
E
D
U
N
D
A
N
C
Y

T1 RJ48
back card

E1RJ48
back card

E1 SMB
back card

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Frame Relay Service Modules

Route Processor Module (RPM)
The Route Processor Module is a Cisco 7200 series router redesigned into a double-height card to fit in
a MGX 8230 chassis. The RPM front card provides a Cisco IOS network processing engine (NPE-150),
capable of processing up to 120K packets per second (pps). The front card also provides ATM
connectivity to the MGX 8230 internal cell bus at full-duplex OC-3c from the module.
Initially, three types of single-height back card types will be supported: four-port Ethernet, one-port
(FDDI), and one-port Fast Ethernet. Each module can support two of these back cards.
The RPM enables high quality, scalable IP+ATM integration using multiprotocol label switching
(MPLS) technology.

RPM Documentation
Installation, configuration and support for RPM services are not included in this manual. For more
information on the RPM, refer to the following Cisco Systems publications:
•

For information on availability and support of the MGX-RPM-128/B and MGX-RPM-PR, see the
Release Notes for “Cisco WAN MGX 8850, 8230, and 8250 Software”

•

For configuration information on the Route Processor Module (RPM), see the Cisco Route
Processor Module Installation and Configuration Guide.

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C H A P T E R

Site Preparation
This section describes the steps to take and the considerations you should keep in mind prior to installing
an MGX 8230 chassis in a rack. It also contains information that applies to an MGX 8230 installation in
a Cisco closed rack. If the MGX 8230 arrives in a Cisco closed rack, your initial concerns would be the
cabinet grounding, and power connections.
For specifications on the enclosure and power system, see the Appendix A, “Technical Specifications.”
The topics and section names in this chapter are:
•

Site Preparation, page 3-1

•

Regulatory Compliance and Safety Information, page 3-3

•

Maintaining Safety with Electricity, page 3-3

•

Seismic Considerations, page 3-14

•

Seismic Anchoring for a Cisco Rack, page 3-14

•

Power and Grounding, page 3-17

•

Making the Frame Bonding (Ground) Connection, page 3-21

Parts Checklist
Before proceeding with the installation, verify that all the ordered parts are present and in good
condition. Store a record of the parts and serial numbers. If any parts are missing or damaged, contact
your sales representative.

Site Preparation
The site must satisfy the requirements in the following categories:
•

Space
The MGX 8230 IP + ATM Edge Concentrator is typically co-located in a rack with either an MGX
switch or a BPX switch.
Refer to the Cisco BPX 8600 Series Installation and Configuration documents for information about
rack and cabinet mounted switches.

•

Environment
The operating environment should be as follows:

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Temperature and humidity range: 0° to 40°C (32° to 104°F) for normal operation, 50°C for up to 72
hours. Recommend range of 20° to 30°C. Up to 85% relative humidity, non-condensing.
•

Shock
– Operating: 10 g shock, three pulses in the positive and negative directions, all axes, 1/2 sine

wave, 11 ms duration.
– Non-operating: 20 g shock, three pulses in the positive and negative directions, all axes,

1/2 sine wave, 11 ms duration.
•

Vibration
– Operating: 5 Hz to 2 kHz at .75 g peak, limited to 0.25-inch double amplitude, sine wave,

1 octave/minute, two sweeps.
– Non-operating: 5 Hz to 500 Hz at 1.0 g peak, limited to 0.50-inch double amplitude, sine wave,

1 octave/minute, two sweeps.
•

Power
For AC power use, an AC power source must be available within 6 feet (1.8 m) of the MGX 8230.
For systems using a DC source, Cisco does not supply the DC power cord, so the user or installer
determines the wire length and the distance to the DC source. The wire should be 10 AWG (4 square
millimeters).

•

Heat Dissipation
A fully loaded, AC-powered MGX 8230 dissipates up to 4,800 BTUs (1.4 KW hour). A DC-powered
MGX 8230 dissipates up to 4,100 BTUs.

•

Weight
A fully loaded, DC-powered MGX 8230 can weigh up to 120 lbs (54.3 Kgs). A fully loaded
AC-powered MGX 8230 can weigh up to 150 lbs (68.03 Kgs).

Caution

If you move a Cisco-supplied cabinet, do not push it at its sides. Push at the front or back.
•

Flooring
Raised flooring with sufficient under-floor space for external cabling is best.

•

Mounting
The location of the IGX or BPX switch, which has a co-located MGX 8230 IP + ATM Edge
Concentrator, should accommodate the routing of the data cables and the termination of the
telephone company’s or common carrier’s circuits.

•

Electrostatic Discharge
The building should provide adequate grounding to prevent damage from electrostatic discharge.
See the sections “Bonding and Grounding” in the IGX or BPX installation documents for specific
details.
In addition, the MGX 8230 comes with a wrist strap that you can connect to the rear of the chassis
near the ground lug or to a convenient point on the front of the chassis. You should put on a wrist
strap before handling any cards.

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Regulatory Compliance and Safety Information

Regulatory Compliance and Safety Information
This chapter provides regulatory compliance and safety information for the AC and DC powered
versions of the MGX 8230.

Warning

Only trained service personnel should install the equipment.

Warning

Read the installation instructions before you connect the equipment to its power source.

The MGX 8230 AC and DC powered systems are intended for installation in a RESTRICTED ACCESS
LOCATION.

Safety Recommendations
The guidelines that follow help ensure your safety and protect the MGX 8230 equipment. The list of
guidelines may not address all potentially hazardous situations in your working environment, so be alert,
and exercise good judgement at all times.
The safety guidelines are:
•

Keep the chassis area clear and dust-free before, during, and after installation.

•

Keep tools away from walk areas where people could fall over them.

•

Do not wear loose clothing or jewelry, such as rings, bracelets, or chains, which may become caught
in the chassis.

•

Wear safety glasses if you are working under any conditions that may be hazardous to your eyes.

•

Do not perform any actions that create a potential hazard to people or make the equipment unsafe.

•

Never attempt to lift an object that is too heavy for one person to handle.

Maintaining Safety with Electricity
Warning

Before working on a chassis or working near power supplies, unplug the power cords on an
AC-powered system. On a DC-powered system, disconnect the power at the circuit breakers.

Follow these guidelines when working on equipment powered by electricity:
•

Locate the emergency power-off switch for the room in which you are working. If an electrical
accident occurs, you can quickly turn off the power.

•

Do not work alone if potentially hazardous conditions exist anywhere in your workspace.

•

Never assume that power is disconnected from a circuit: always check the circuit.

•

Carefully look for possible hazards in your work area, such as moist floors, ungrounded power
extension cords, or missing safety grounds.

•

If an electrical accident occurs:
– Use caution—do not let yourself become a victim.

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– Disconnect power from the system.
– If possible, send another person to get medical aid. Otherwise, assess the condition of the victim

then call for help.
•

Use the MGX 8230 AC and MGX 8250 DC systems within their marked electrical ratings and
product usage instructions.

•

Install the MGX 8230 or MGC 8250 DC systems with the following local, national, or international
electrical codes:
– United States—National Fire Protection Association (NFPA70), United States National

Electrical Code.
– Canada—Canadian Electrical Code, Part 1, CSA C22.1.
– Other countries—International Electromechanical Commission (IEC) 364, Part 1 through

Part 7.
•

MGX 8230 AC models are shipped with a 3-wire electrical cord with a grounding-type plug that fits
only a grounding type power outlet. This is a safety feature that you should not circumvent.
Equipment grounding should comply with local and national electrical codes.

•

MGX 8230 DC models are equipped with DC power entry modules and require you to terminate the
DC input wiring on a DC source capable of supplying at least 60 amps. A 60-amp circuit breaker is
required at the 48 VDC facility power source. An easily accessible disconnect device should be
incorporated into the facility wiring. Be sure to connect the grounding wire conduit to a solid earth
ground. A closed loop ring is recommended to terminate the ground conductor at the ground stud.

•

Other DC power guidelines are:
– Only a DC power source that complies with the safety extra low voltage (SELV) requirements

of UL 1950, CSA C22.2 No. 950-95, EN 60950 and IEC 950 can be connected to an MGX 8230
DC-input power entry module.
– MGX 8230 DC which is equipped with DC power entry modules is intended only for

installation in a restricted access location. In the United States, a restricted access area is in
accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code
ANSI/NFPA 70.

Warning Definition

Warning

Waarschuwing

Varoitus

Means danger. You are in a situation that could cause bodily injury. Before you work on any
equipment, be aware of the hazards involved with electrical circuitry and be familiar with
standard practices for preventing accidents.
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel
kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van
de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard
maatregelen om ongelukken te voorkomen.
Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan.
Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä
vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista.

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Attention

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant
causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez
conscient des dangers posés par les circuits électriques et familiarisez-vous avec les
procédures couramment utilisées pour éviter les accidents.

Warnung

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer
Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien
Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken
zur Vermeidung von Unfällen bewußt.

Avvertenza

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle
persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi
ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti.

Advarsel

Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før
du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser
innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker.

Aviso

Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos
físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos
relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir
possíveis acidentes.

¡Atención!

Varning!

Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de
manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y
familiarizarse con los procedimientos estándar de prevención de accidentes.
Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till
personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med
elkretsar och känna till vanligt förfarande för att förebygga skador.

Product Disposal Warning

Warning

Ultimate disposal of this product should be handled according to all national laws and
regulations.

Waarschuwing

Dit produkt dient volgens alle landelijke wetten en voorschriften te worden afgedankt.

Varoitus

Tämän tuotteen lopullisesta hävittämisestä tulee huolehtia kaikkia valtakunnallisia lakeja ja
säännöksiä noudattaen.

Attention

La mise au rebut définitive de ce produit doit être effectuée conformément à toutes les lois et
réglementations en vigueur.

Warnung

Dieses Produkt muß den geltenden Gesetzen und Vorschriften entsprechend entsorgt werden.

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Avvertenza

Advarsel
Aviso

¡Advertencia!

Varning!

L'eliminazione finale di questo prodotto deve essere eseguita osservando le normative italiane
vigenti in materia.
Endelig disponering av dette produktet må skje i henhold til nasjonale lover og forskrifter.
A descartagem final deste produto deverá ser efectuada de acordo com os regulamentos e a
legislação nacional.
El desecho final de este producto debe realizarse según todas las leyes y regulaciones
nacionales.
Slutlig kassering av denna produkt bör skötas i enlighet med landets alla lagar och föreskrifter.

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Lightning Activity Warning

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Waarschuwing

Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het systeem te werken of kabels
aan te sluiten of te ontkoppelen.

Varoitus

Älä työskentele järjestelmän parissa äläkä yhdistä tai irrota kaapeleita ukkosilmalla.

Attention

Ne pas travailler sur le système ni brancher ou débrancher les câbles pendant un orage.

Warnung

Arbeiten Sie nicht am System und schließen Sie keine Kabel an bzw. trennen Sie keine ab, wenn
es gewittert.

Avvertenza

Non lavorare sul sistema o collegare oppure scollegare i cavi durante un temporale con fulmini.

Advarsel

Utfør aldri arbeid på systemet, eller koble kabler til eller fra systemet når det tordner eller lyner.

Aviso
¡Advertencia!

Varning!

Não trabalhe no sistema ou ligue e desligue cabos durante períodos de mau tempo (trovoada).
No operar el sistema ni conectar o desconectar cables durante el transcurso de descargas
eléctricas en la atmósfera.
Vid åska skall du aldrig utföra arbete på systemet eller ansluta eller koppla loss kablar.

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Jewelry Removal Warning

Warning

Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and
can cause serious burns or weld the metal object to the terminals.

Waarschuwing

Alvorens aan apparatuur te werken die met elektrische leidingen is verbonden, sieraden
(inclusief ringen, kettingen en horloges) verwijderen. Metalen voorwerpen worden warm
wanneer ze met stroom en aarde zijn verbonden, en kunnen ernstige brandwonden veroorzaken
of het metalen voorwerp aan de aansluitklemmen lassen.

Varoitus

Ennen kuin työskentelet voimavirtajohtoihin kytkettyjen laitteiden parissa, ota pois kaikki korut
(sormukset, kaulakorut ja kellot mukaan lukien). Metalliesineet kuumenevat, kun ne ovat
yhteydessä sähkövirran ja maan kanssa, ja ne voivat aiheuttaa vakavia palovammoja tai hitsata
metalliesineet kiinni liitäntänapoihin.

Attention

Avant d’accéder à cet équipement connecté aux lignes électriques, ôter tout bijou (anneaux,
colliers et montres compris). Lorsqu’ils sont branchés à l’alimentation et reliés à la terre, les
objets métalliques chauffent, ce qui peut provoquer des blessures graves ou souder l’objet
métallique aux bornes.

Warnung

Vor der Arbeit an Geräten, die an das Netz angeschlossen sind, jeglichen Schmuck
(einschließlich Ringe, Ketten und Uhren) abnehmen. Metallgegenstände erhitzen sich, wenn sie
an das Netz und die Erde angeschlossen werden, und können schwere Verbrennungen
verursachen oder an die Anschlußklemmen angeschweißt werden.

Avvertenza

Prima di intervenire su apparecchiature collegate alle linee di alimentazione, togliersi
qualsiasi monile (inclusi anelli, collane, braccialetti ed orologi). Gli oggetti metallici si
riscaldano quando sono collegati tra punti di alimentazione e massa: possono causare ustioni
gravi oppure il metallo può saldarsi ai terminali.

Advarsel

Fjern alle smykker (inkludert ringer, halskjeder og klokker) før du skal arbeide på utstyr som er
koblet til kraftledninger. Metallgjenstander som er koblet til kraftledninger og jord blir svært
varme og kan forårsake alvorlige brannskader eller smelte fast til polene.

Aviso

Antes de trabalhar em equipamento que esteja ligado a linhas de corrente, retire todas as jóias
que estiver a usar (incluindo anéis, fios e relógios). Os objectos metálicos aquecerão em
contacto com a corrente e em contacto com a ligação à terra, podendo causar queimaduras
graves ou ficarem soldados aos terminais.

¡Advertencia!

Antes de operar sobre equipos conectados a líneas de alimentación, quitarse las joyas
(incluidos anillos, collares y relojes). Los objetos de metal se calientan cuando se conectan a
la alimentación y a tierra, lo que puede ocasionar quemaduras graves o que los objetos
metálicos queden soldados a los bornes.

Varning!

Tag av alla smycken (inklusive ringar, halsband och armbandsur) innan du arbetar på utrustning
som är kopplad till kraftledningar. Metallobjekt hettas upp när de kopplas ihop med ström och
jord och kan förorsaka allvarliga brännskador; metallobjekt kan också sammansvetsas med
kontakterna.

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Power Supply Warning

Warning

Do not touch the power supply when the power cord is connected. For systems with a power
switch, line voltages are present within the power supply even when the power switch is off
and the power cord is connected. For systems without a power switch, line voltages are present
within the power supply when the power cord is connected.

Waarschuwing

U dient de voeding niet aan te raken zolang het netsnoer aangesloten is. Bij systemen met een
stroomschakelaar zijn er lijnspanningen aanwezig in de voeding, zelfs wanneer de
stroomschakelaar uitgeschakeld is en het netsnoer aangesloten is. Bij systemen zonder een
stroomschakelaar zijn er lijnspanningen aanwezig in de voeding wanneer het netsnoer
aangesloten is.

Varoitus

Älä kosketa virtalähdettä virtajohdon ollessa kytkettynä. Virrankatkaisimella varustetuissa
järjestelmissä on virtalähteen sisällä jäljellä verkkojännite, vaikka virrankatkaisin on
katkaistu-asennossa virtajohdon ollessa kytkettynä. Järjestelmissä, joissa ei ole
virrankatkaisinta, on virtalähteen sisällä verkkojännite, kun virtajohto on kytkettynä.

Attention

Ne pas toucher le bloc d'alimentation quand le cordon d'alimentation est branché. Avec les
systèmes munis d'un commutateur marche-arrêt, des tensions de ligne sont présentes dans
l'alimentation quand le cordon est branché, même si le commutateur est à l'arrêt. Avec les
systèmes sans commutateur marche-arrêt, l'alimentation est sous tension quand le cordon
d'alimentation est branché.

Warnung

Berühren Sie das Netzgerät nicht, wenn das Netzkabel angeschlossen ist. Bei Systemen mit
Netzschalter liegen Leitungsspannungen im Netzgerät vor, wenn das Netzkabel angeschlossen
ist, auch wenn das System ausgeschaltet ist. Bei Systemen ohne Netzschalter liegen
Leitungsspannungen im Netzgerät vor, wenn das Netzkabel angeschlossen ist.

Avvertenza

Non toccare l’alimentatore se il cavo dell’alimentazione è collegato. Per i sistemi con un
interruttore di alimentazione, tensioni di linea sono presenti all’interno dell’alimentatore anche
quando l’interruttore di alimentazione è en posizione di disattivazione (off), se il cavo
dell’alimentazione è collegato. Per i sistemi senza un interruttore, tensioni di linea sono
presenti all’interno dell’alimentatore quando il cavo di alimentazione è collegato.

Advarsel

Aviso

Berør ikke strømforsyningsenheten når strømledningen er tilkoblet. I systemer som har en
strømbryter, er det spenning i strømforsyningsenheten selv om strømbryteren er slått av og
strømledningen er tilkoblet. Når det gjelder systemer uten en strømbryter, er det spenning i
strømforsyningsenheten når strømledingen er tilkoblet.
Não toque na unidade abastecedora de energia quando o cabo de alimentação estiver ligado.
Em sistemas com interruptor, a corrente eléctrica estará presente na unidade abastecedora,
sempre que o cabo de alimentação de energia estiver ligado, mesmo quando o interruptor se
encontrar desligado. Para sistemas sem interruptor, a tensão eléctrica dentro da unidade
abastecedora só estará presente quando o cabo de alimentação estiver ligado.

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¡Advertencia!

Varning!

No tocar la fuente de alimentación mientras el cable esté enchufado. En sistemas con
interruptor de alimentación, hay voltajes de línea dentro de la fuente, incluso cuando el
interruptor esté en Apagado (OFF) y el cable de alimentación enchufado. En sistemas sin
interruptor de alimentación, hay voltajes de línea en la fuente cuando el cable está enchufado.
Vidrör inte strömförsörjningsenheten när nätsladden är ansluten. För system med strömbrytare
finns det nätspänning i strömförsörjningsenheten även när strömmen har slagits av men
nätsladden är ansluten. För system utan strömbrytare finns det nätspänning i
strömförsörjningsenheten när nätsladden är ansluten.

Power Supply Disconnection Warning

Warning

Waarschuwing

Before working on a chassis or working near power supplies, unplug the power cord on AC
units; disconnect the power at the circuit breaker on DC units.
Voordat u aan een frame of in de nabijheid van voedingen werkt, dient u bij wisselstroom
toestellen de stekker van het netsnoer uit het stopcontact te halen; voor gelijkstroom toestellen
dient u de stroom uit te schakelen bij de stroomverbreker.

Varoitus

Kytke irti vaihtovirtalaitteiden virtajohto ja katkaise tasavirtalaitteiden virta suojakytkimellä,
ennen kuin teet mitään asennuspohjalle tai työskentelet virtalähteiden läheisyydessä.

Attention

Avant de travailler sur un châssis ou à proximité d'une alimentation électrique, débrancher le
cordon d'alimentation des unités en courant alternatif ; couper l'alimentation des unités en
courant continu au niveau du disjoncteur.

Warnung

Bevor Sie an einem Chassis oder in der Nähe von Netzgeräten arbeiten, ziehen Sie bei
Wechselstromeinheiten das Netzkabel ab bzw. schalten Sie bei Gleichstromeinheiten den
Strom am Unterbrecher ab.

Avvertenza

Prima di lavorare su un telaio o intorno ad alimentatori, scollegare il cavo di alimentazione sulle
unità CA; scollegare l'alimentazione all’interruttore automatico sulle unità CC.

Advarsel

Før det utføres arbeid på kabinettet eller det arbeides i nærheten av str¿mforsyningsenheter,
skal str¿mledningen trekkes ut pŒ vekselstrømsenheter og strømmen kobles fra ved
strømbryteren på likestrømsenheter.

Aviso

Antes de trabalhar num chassis, ou antes de trabalhar perto de unidades de fornecimento de
energia, desligue o cabo de alimentação nas unidades de corrente alternada; desligue a
corrente no disjuntor nas unidades de corrente contínua.

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¡Advertencia!

Varning!

Antes de manipular el chasis de un equipo o trabajar cerca de una fuente de alimentación,
desenchufar el cable de alimentación en los equipos de corriente alterna (CA); cortar la
alimentación desde el interruptor automático en los equipos de corriente continua (CC).
Innan du arbetar med ett chassi eller nära strömförsörjningsenheter skall du för
växelströmsenheter dra ur nätsladden och för likströmsenheter bryta strömmen vid
överspänningsskyddet.

Power Disconnection Warning

Warning

Before working on a system that has an On/Off switch, turn OFF the power and unplug the power
cord.

Waarschuwing

Voordat u aan een systeem werkt dat een aan/uit schakelaar heeft, dient u de stroomvoorziening
UIT te schakelen en de stekker van het netsnoer uit het stopcontact te halen.

Varoitus

Ennen kuin teet mitään sellaiselle järjestelmälle, jossa on kaksiasentokytkin, katkaise siitä
virta ja kytke virtajohto irti.

Attention

Avant de travailler sur un système équipé d'un commutateur marche-arrêt, mettre l'appareil à
l'arrêt (OFF) et débrancher le cordon d'alimentation.

Warnung

Bevor Sie an einem System mit Ein/Aus-Schalter arbeiten, schalten Sie das System AUS und
ziehen das Netzkabel aus der Steckdose.

Avvertenza

Advarsel

Prima di lavorare su un sistema dotato di un interruttore on/off, spegnere (OFF) il sistema e
staccare il cavo dell’alimentazione.
Slå AV strømmen og trekk ut strømledningen før det utføres arbeid på et system som er utstyrt
med en av/på-bryter.

Aviso

Antes de começar a trabalhar num sistema que tem um interruptor on/off, DESLIGUE a corrente
eléctrica e retire o cabo de alimentação da tomada.

¡Advertencia!

Antes de utilizar cualquier sistema equipado con interruptor de Encendido/Apagado (ON/OFF),
cortar la alimentación y desenchufar el cable de alimentación.

Varning!

Slå AV strömmen och dra ur nätsladden innan du utför arbete på ett system med strömbrytare.

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Grounded Equipment Warning

Warning

This equipment is intended to be grounded. Ensure that the host is connected to earth ground
during normal use.

Waarschuwing

Deze apparatuur hoort geaard te worden Zorg dat de host-computer tijdens normaal gebruik met
aarde is verbonden.

Varoitus

Tämä laitteisto on tarkoitettu maadoitettavaksi. Varmista, että isäntälaite on yhdistetty maahan
normaalikäytön aikana.

Attention

Cet équipement doit être relié à la terre. S’assurer que l’appareil hôte est relié à la terre lors de
l’utilisation normale.

Warnung

Dieses Gerät muß geerdet werden. Stellen Sie sicher, daß das Host-Gerät während des
normalen Betriebs an Erde gelegt ist.

Avvertenza

Advarsel

Questa apparecchiatura deve essere collegata a massa. Accertarsi che il dispositivo host sia
collegato alla massa di terra durante il normale utilizzo.
Dette utstyret skal jordes. Forviss deg om vertsterminalen er jordet ved normalt bruk.

Aviso

Este equipamento deverá estar ligado à terra. Certifique-se que o host se encontra ligado à terra
durante a sua utilização normal.

¡Advertencia!

Este equipo debe conectarse a tierra. Asegurarse de que el equipo principal esté conectado a
tierra durante el uso normal.

Varning!

Denna utrustning är avsedd att jordas. Se till att värdenheten är jordad vid normal användning.

Installation Warning

Warning
Waarschuwing
Varoitus

Read the installation instructions before you connect the system to its power source.
Raadpleeg de installatie-aanwijzingen voordat u het systeem met de voeding verbindt.
Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen.

Attention

Avant de brancher le système sur la source d'alimentation, consulter les directives
d'installation.

Warnung

Lesen Sie die Installationsanweisungen, bevor Sie das System an die Stromquelle anschließen.

Avvertenza

Consultare le istruzioni di installazione prima di collegare il sistema all’alimentatore.

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Advarsel
Aviso

Les installasjonsinstruksjonene før systemet kobles til strømkilden.
Leia as instruções de instalação antes de ligar o sistema à sua fonte de energia.

¡ Atención!

Ver las instrucciones de instalación antes de conectar el sistema a la red de alimentación.

Varning!

Läs installationsanvisningarna innan du kopplar systemet till dess strömförsörjningsenhet.

Class 1 Laser Product Warning

Warning
Waarschuwing
Varoitus

Class 1 laser product.
Klasse-1 laser produkt.
Luokan 1 lasertuote.

Attention

Produit laser de classe 1.

Warnung

Laserprodukt der Klasse 1.

Avvertenza

Prodotto laser di Classe 1.

Advarsel

Laserprodukt av klasse 1.

Aviso

Produto laser de classe 1.

¡Advertencia!
Varning!

Producto láser Clase I.
Laserprodukt av klass 1.

Laser Beam Warning

Warning
Waarschuwing
Varoitus

Do not stare into the beam or view it directly with optical instruments.
Niet in de straal staren of hem rechtstreeks bekijken met optische instrumenten.
Älä katso säteeseen äläkä tarkastele sitä suoraan optisen laitteen avulla.

Attention

Ne pas fixer le faisceau des yeux, ni l'observer directement à l'aide d'instruments optiques.

Warnung

Nicht direkt in den Strahl blicken und ihn nicht direkt mit optischen Geräten prüfen.

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Seismic Considerations

Avvertenza
Advarsel
Aviso
¡Advertencia!
Varning!

Non fissare il raggio con gli occhi né usare strumenti ottici per osservarlo direttamente.
Stirr eller se ikke direkte pŒ strŒlen med optiske instrumenter.
Não olhe fixamente para o raio, nem olhe para ele directamente com instrumentos ópticos.
No mirar fijamente el haz ni observarlo directamente con instrumentos ópticos.
Rikta inte blicken in mot strålen och titta inte direkt på den genom optiska instrument.

Seismic Considerations
To secure a Cisco-supplied cabinet, holes in the upper and lower corners accommodate 3/8" or 1/2" bolts.
Also, an optional stability plate can be purchased with the Cisco cabinet. The stability plate is bolted to
the floor, then the Cisco cabinet is bolted to the stability plate. Instructions for installing the stability
plate appear in the section “Seismic Anchoring for a Cisco Rack.”

Seismic Anchoring for a Cisco Rack
This section describes how to install the Cisco cabinet with the optional stability plate for seismic
anchoring.
To set up the Cisco cabinet with the stability plate, perform the following:
Step 1

Use the dimensions in Figure 3-1 to drill the holes for installing the stability plate.

Step 2

Remove the stability plate from the base of the Cisco cabinet. Save these nuts and bolts.

Step 3

With the user-provided anchoring bolts, attach the stability plate to the floor.

Step 4

Roll the Cisco cabinet over the stability plate as Figure 3-2 illustrates.

Step 5

Use the nuts and bolts from the shipping setup to secure the cabinet to the stability plate.

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Stability Plate Dimensions
0.337 (0.85 cm)
0.663 (1.68 cm)

Figure 3-1

11.55 (29.34 cm)
9.5 (24.13 cm)
3.35 (8.51 cm)

H8380

18.0 (45.72 cm)

C
L

33.875 (86.0 cm)

34.550 (87.76 cm)

18.0

Cabinet
outline

3.35 (8.51 cm)
6.7 (17.02 cm)

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Figure 3-2

Installing a Cisco Cabinet Over the Stability Plate

H8381

3/8 x 1 inch
bolts (4)

Stability
plate

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Power and Grounding

Power and Grounding
This section describes the requirements for electrical power and grounding the switch and the site. These
requirements apply to Central Office (CO) and Private Enterprise (PE) sites.

AC Power Circuit Breakers
AC power must come from dedicated, AC branch circuits. Each circuit must be protected by a dedicated,
two-pole circuit breaker. The circuit breakers at the source must have a rated current and trip delay
greater than those of the MGX 8230 circuit breaker. Cisco recommends that the site have a 20A, 2-pole
AC circuit breaker with a long trip delay at each branch circuit.
The MGX 8230 uses a 20A, 2-pole circuit breaker for each AC input. The manufacturer of this circuit
breaker is ETA. The ETA part number is 8340-F120-P1P2-B2H020A.

DC Power Circuit Breakers
For a DC-powered MGX 8230, verify that its power comes from a dedicated DC branch circuit. This
branch circuit must be protected by a dedicated circuit breaker. Cisco Systems recommends the site have
a dedicated 30 Amp circuit breaker with a medium trip delay at each branch circuit.
A DC-powered MGX 8230 uses a single pole 30 Amp circuit breaker with a short trip delay on each
–48V input. The circuit breaker manufacturer is ETA. The part number is ETA
8340-F110-PIKI-A2H030A.

Electrical Power for AC-Powered Nodes
The MGX 8230 AC power requirement is a voltage range of 100 to 120 or 200 to 240 VAC. A worst-case
90 VAC is allowed. Refer to Appendix A, “Technical Specifications.” An AC power source must be
available within 6 feet (1.8 m) of the system and easily accessible. Before turning on the power, verify
that each power source to the MGX 8230 comes from a dedicated branch circuit.
The power receptacles to which the node connects must be of the grounding type. The grounding
conductors that connect to the receptacles should connect to protective earth at the service equipment.
Cisco can provide AC power cords with the following plugs:
•

20 A NEMA Lb-20P, twist lock plug (domestic U.S.)

•

13 A 250 Vac BS1363, 3-prong fused plug (UK, Ireland)

•

CEE 7/7 (Continental Europe)

•

AS3112 (Australia/New Zealand)

•

CEI23-16/VII (Italy)

•

NEMA5-15P 125V/15 A 3-prong plug, grounding type (North America)

Electrical Power for a DC-Powered MGX 8230
Only a - 48 VDC supply that complies with the Safety Extra Low Voltage (SELV) requirements of EN
60950 can connect to the DC input.

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For DC supply connections, consult local or national codes for conductor sizing. Conductors must be
suitable for 30 Amps. Wiring that is 10 AWG (4 square millimeters) is adequate.

Bonding and Grounding
To maintain the full EMI and EMC integrity of this equipment, it must be bonded to an integrated ground
plane or an isolated ground plane network. The purpose of this requirement is to mitigate the damaging
effects to equipment from electrostatic discharge and lightning. Refer to the latest edition of ITU
Recommendation K.27 or Bellcore GR-1089-CORE requirements to ensure that the correct bonding and
grounding procedures are followed. As recommended in these documents, a frame bonding connection
is provided on the Cisco-supplied cabinet for rack-mounted systems.
Refer to the section “Making the Frame Bonding (Ground) Connection” in the IGX or the BPX
installation documents for information on how to make a connection.

Note

Except for the AC power supply module, every module in a rack-mount system relies on the rack
itself for grounding. Therefore, the rack must be properly connected to protective earth before
operating the system.
A DC-powered node must have grounding conductors that connect at two separate locations, as follows:
•

The grounding conductor provided with the supply source must connect to the correct terminal of
the Power Entry Module (PEM).

•

A grounding conductor as described previously must connect to the appropriate terminal of a rack
assembly or to the grounding point on the lower-right corner of the MGX 8230 chassis rear panel.

Wiring a Mixed Ground System with Redundant Supplies
A mixed ground system appears in Figure 3-3. This figure shows safety and earth grounds and the
primary and redundant DC sources Battery A and Battery B. Individual ground conductors are labeled
Z1, Z2, ..., Z5. The Z represents the impedance of the ground conductor between a chassis, for example,
and a connection to the building’s ground system. The numbers 1, ..., 4 represent building ground points
and indicate that an impedance can exist between different points in the ground system of the building.
Each of these symbols indicate that a voltage drop may result (but must not exceed 2 percent of the
referenced voltage). See Table 3-1 for a definition of each Z1–Z5.

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Figure 3-3

Mixed Grounding System

Non-isolated equipment
– 48V-A

– 48V-A

–

– 48V-A RTN
Safety Ground

– 48V-A

logic power

– 48V-B
Z1

Battery A

– 48V-B RTN
Safety Ground

– 48V-B
1

B
Z3
Z2

3
Z1

Isolated equipment
– 48V-A

–

– 48V-A RTN
Safety Ground

– 48V-B
Z1

Battery B

– 48V-B RTN
Safety Ground

– 48V-A

logic power

– 48V-B
2

28311

– 48V-B

Table 3-1

Ground Point Descriptions for Mixed Grounding

Connection

Description

–48 VDC return.

Protective earth or safety ground (green/yellow).

Equipment ground for non isolated equipment.

Equipment ground for isolated equipment.

Equalizing frame ground. This ground creates low-impedance equalization
between frames.

Battery ground.

1, 2, 3, 4

Connection points to the building’s ground system: a potential can exist between
these points within the ground system.

Common-mode EMI filters.

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As Figure 3-3 shows, the non isolated system has a 48 VDC return that internally connects to the
backplane. (This design calls for a hard-wired return and so does not allow for an optional or alternate
ground connection.) The internal connection provides a low-impedance connection between 48 VDC
return and frame ground. This grounding scheme protects the signals on the backplane from corruption
by transients that can result from lightning or electrostatic discharge.
To improve protection against transients, the loop area (and resultant loop impedance) should be made
as small as possible by locating the –48 VDC supply, 48 VDC return, and protective earth conductors as
close to each other as possible.
As recommended in ITU-T K.27, the multi point grounding in a mesh bonding network provides the best
protection for equipment by providing the lowest impedance in the ground system. For more detailed
information, refer to the recommendation itself.

Conductor Characteristics for Carrying Current and Ensuring Low Voltage Drops
To prevent signal degradation, a conductor must be large enough to prevent its impedance from creating
a voltage drop equal to 2 percent of the reference voltage. Also, the protective earth conductor must be
large enough to carry all the current if the 48 VDC return fails. This latter requirement is for safety. Full
fault redundancy is achieved by having equal size conductors for the protective earth ground and the 48
VDC return of the switch.
For wire gauges that prevent unacceptable voltage drops over different lengths of copper wire, see
Table 3-2. For the resistance of 1000 feet of copper wire for each gauge of wire, see Table 3-3. These
references are for planning purposes and may be further subject to local laws and practices.
Table 3-2

Wire Gauge for Current Loads Over Copper Wire Lengths

DC Current Distance in Feet
25 feet

50 feet

75 feet

100 feet 150 feet 200 feet 400 feet

10A

15A

20A

25A

30A

35A

000

40A

000

45A

0000

50A

______

55A

______

60A

______

65A

000

______

70A

000

______

75A

000

______

100A

000

______

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Table 3-3

Gauge

Resistance for Each Gauge of Copper Wire

Ohms per 1000 Feet

Gauge

Ohms per 1000 Feet

0000

0.0489

0.9968

000

0,0617

1.257

0.0778

1.5849

0.098

1.9987

0.1237

2.5206

0.156

3.1778

0.1967

4.0075

0.248

5.0526

0.3128

6.3728

0.3944

8.0351

0.4971

10.1327

4
5
6
7
8
9

0.6268
0.7908

21
22

12.7782
16.1059

Using the Electrostatic Wrist Strap
The MGX 8230 ships with a wrist strap for grounding the user and protecting the electronic components
from electrostatic shock. The wrist strap kit consists of a strap, a coiled cord, and a clip for holding the
strap.
Cisco recommends you install the base of the wrist strap cable on the left front flange of one of the units
at a convenient height. Use a front mounting screw to secure the ring lug to the flange and front rail. The
other end of the cord connects to the strap with a snap connector. Peel the back off the clip to expose the
adhesive surface and attach to the front of the unit above the ring lug. Mount the clip sideways to allow
the strap to be held in a position that will not interfere with the removal of the number card. Use the clip
to store the strap.

Co-Locating Cisco Units in the Same Rack
Different Cisco products can reside in the same rack. If a multi system rack configuration includes an
MGX 8600 series switch, it should reside as the bottom unit.

Making the Frame Bonding (Ground) Connection
This section describes the steps for making ground connections that comply with the Cisco MSSBU
grounding policies. The descriptions cover optional ground connections from each node to the ground
connector of the rack as well as the equalization connections between racks that are part of the earth
grounding network.

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The Cisco-supplied cabinet has two pairs of grounding studs and the hardware for securing a ground
conductor to the studs at the top and bottom of the cabinet. The studs measure 1/4" by 20 threads per
inch. The studs can accept the two-holed grounding connector designed to prevent rotation and possible
loosening of the connector. Figure 3-4 shows the Cisco cabinet with the ground attachment studs in the
upper and lower parts of the cabinet. A ground symbol on the Cisco rack indicates the points of
attachment.

Making Cisco Cabinet Ground Connections
Cisco recommends the following steps for attaching a ground conductor to the frame of a Cisco rack:
Step 1

Place an external, toothed star washer onto the stud.

Step 2

Place the connector terminating the grounding conductor closed-loop ring or two-hole compression
fitting onto the stud.

Step 3

Place another external, toothed star washer or lock washer onto the stud.

Step 4

Screw a nut onto the threaded stud.

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Figure 3-4

Frame Bonding Connection in Cisco-Supplied Rack

Frame
bonding
connection

H8215

Frame
bonding
connection

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C H A P T E R

Enclosure Installation
Chapter Summary
This chapter contains instructions for installing an MGX 8230 as a stand-alone unit or in a rack. Due to
the weight of the equipment, a mechanical lift should be used to install the MGX 8230 chassis.

Note

Use of a lift greatly simplifies the installation process since the cards and power supplies do not need
to be removed.
This chapter contains the following sections:
•

Installing a Stand-Alone MGX 8230, page 4-2

•

Rack Mounting an MGX 8230, page 4-2
– Prepare for Rack Installation, page 4-3.
– Install the MGX 8230 Using a Mechanical Lift (Recommended), page 4-6.
– Install the MGX 8230 Without a Mechanical Lift (Optional), page 4-7.
– Connecting Power for DC Systems, page 4-11.
– Connecting Power for AC Systems, page 4-14.
– Install the Cable Manager, page 4-17.
– Power up the MGX 8230, page 4-18.

Mechanical Lift Guidelines
•

The lift should be capable of handling 300lbs.

•

A sample lift is the T & S Hefti-Lift, Model HYD-5. For specifications, see
http://www.tseq.com/products/ergosol/hefti-lift.htm.

•

The minimum platform dimensions are 175” wide by 24” deep.

If a mechanical lift is not available, the cards and power supplies must be removed so the chassis can be
lifted into the rack. This section contains instructions for installations with or without a mechanical lift.

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Installing a Stand-Alone MGX 8230

Installing a Stand-Alone MGX 8230
If the switch is a stand-alone unit, proceed directly to:
•

Connecting Power for DC Systems, page 4-11

•

Connecting Power for AC Systems, page 4-14.

If a lift is not available and the cards need to be removed, review the appropriate instructions to remove
and replace modules in the “Install the MGX 8230 Without a Mechanical Lift (Optional)” section on
page 4-7.

Rack Mounting an MGX 8230
To install the MGX 8230 into a 19- or 23-inch rack, follow the instructions outlined below:
•

Prepare for Rack Installation, page 4-3.

•

Install the MGX 8230 Using a Mechanical Lift (Recommended), page 4-6.

•

Install the MGX 8230 Without a Mechanical Lift (Optional), page 4-7.

•

Connecting Power for DC Systems, page 4-11.

•

Connecting Power for AC Systems, page 4-14.

•

Install the Cable Manager, page 4-17.

•

Power up the MGX 8230, page 4-18.

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Rack Mounting an MGX 8230

Prepare for Rack Installation
Review this section for information on mounting and positioning the switch in a rack.

Rack Positioning
Different Cisco products can reside in the same rack.
•

When used as a feeder, an MGX 8230 is typically co-located and rack-mounted with either an IGX
or BPX switch.

•

The recommended stacking is the BPX on the bottom, then the 7204 Tag Switch Controller (if
ordered), and the MGX 8230 on top. The gap between products is designed to be .060" minimum to
allow for replacement clearance.

Bracket Placement
An MGX 8230 can be mid-mounted or mounted flush with the front rails.
•

When the MGX 8230 is flush mounted with the front of the rack, it must be supported by a pair of
mounting rails at the rear of the unit.

•

When the MGX 8230 is mid-mounted, it is typically attached to only one intermediate rail on each
side. The allowable positions for intermediate rails are shown in Figure 4-1.

Figure 4-1

MGX 8230 Mounting Rail Positions

MGX 8230 depth 23.5 in.
19.86 in.
10.0 in.
5.0 in.

Module

Front rail

47074

Rear rail

Allowable intermediate
rail positions

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Rack Mounting an MGX 8230

Mounting Kits
There are two mid-mount brackets in each rack-mounting kit. One mid-mount bracket fits on each side
of the MGX 8230 chassis. The mid-mount bracket is 12.25 inches (seven rack units) high and has cutouts
along the flange that attaches to the side of the MGX 8230 to allow air flow. The same mid-mount bracket
is used for the AC or DC-powered MGX 8230s; thus for an AC-powered MGX 8230, with the optional
AC power tray assembly attached underneath the MGX 8230 chassis, the mid-mount bracket does not
extend down to AC power tray assembly. There are some shorter screws included in the rack-mount kits
for attaching mid-mount brackets; these shorter screws are included specifically for attaching the
mid-mount bracket to the side of the MGX 8230 chassis that has the Fan Tray Assembly. Longer screws
can interfere with the spinning of the fans in the Fan Tray Assembly. The shorter screws can be used on
both mid-mount brackets, however.
A rack-mount kit can be ordered for either 19- or 23-inch racks:
•

MGX-8230-MNT19—Mounting kit for 19-inch rack

•

MGX-8230-MNT23—Mounting kit for 23-inch rack

These kits include rear and mid-mount brackets as well as the hardware for mounting the brackets to the
MGX 8230 chassis. Note that there are extra 10-32 screws included in the 19-inch rack-mounting kit that
can be used to secure the MGX 8230 to standard EIA/RETMA rack mounting rails. If the rack being
used has metric or other non-standard mounting holes, the customer must supply appropriate mounting
screws. Since racks often have metric or non-standard threaded holes, you must supply the screws
appropriate for your rack that attach the MGX 8230 to rack mounting rails.
In each 19-inch rack-mounting kit, there are two sets of rear brackets; one set for each side. As shown
in Figure 4-2, one bracket fits on the top at the rear of the MGX 8230, and the other fits on the bottom.
There is a little bend in the bracket that fits over the top (or bottom) of the MGX 8230 chassis. The other
set of brackets fits on the other side of the MGX 8230 chassis.

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MGX 8230 Chassis with Rear Mounting Brackets for 19-Inch Rack

Figure 4-3

MGX 8230 Chassis Front View with 19-Inch Mid-Mounting Bracket

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Figure 4-2

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Install the MGX 8230 Using a Mechanical Lift (Recommended)
The MGX 8230 is shipped with all the ordered modules installed and tested at the factory. If you’ve
ordered an AC power option, the AC power supply tray is attached to the bottom of the MGX 8230
chassis at the factory.
This switch can easily be installed by a single person using a mechanical lift.

Rack Mounting Procedures for 19-Inch Racks (Mechanical Lift)
Note the following before installation is begun:
•

On MGX 8230 systems that will be mid-mounted, attach mid-mounting brackets before installing
the unit in a rack.

•

Use MGX-8230-MNT19 mounting kit for 19-inch rack.

•

Rear mounting brackets cannot be installed before putting a unit in a 19-inch rack.

Step 1

If applicable, attach one mid-mounting bracket to each side of the MGX 8230.

Step 2

Use a lift raise the chassis to the desired position. Place 2 spacers (~.060" (1/16") thick, by ~2" by ~ 30"
fabricated from HDPE, aluminium or cardboard), one on left edge and one on right edge of lower
adjacent chassis. Slide the MGX 8230 across the spacer and position it in the rack.

Step 3

Use the 10-32 truss head screws to secure the MGX 8230 to the front mounting rails (or mid-mounting
rails if appropriate).

Step 4

Use the10-32 screws to secure the MGX 8230 to the rear mounting rails and to the rear mounting bracket,
if applicable.

Rack Mounting Procedures for 23-Inch Racks (Mechanical Lift)
Use the MGX-8230-MNT23 mounting kit for 23-inch racks.
Step 1

Attach the 23-inch mounting brackets to both sides of the MGX 8230 chassis.

Step 2

Step 3

Secure the MGX 8230 to the rack mounting rails.

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Install the MGX 8230 Without a Mechanical Lift (Optional)
Because of the risk of damage to the modules and backplanes, Cisco strongly recommends the use of a
mechanical lift. Using a lift greatly simplifies the installation and reduces the risk of damage. See Install
the MGX 8230 Using a Mechanical Lift (Recommended), page 4-6.
If a mechanical lift is not available for installation, the MGX 8230 must be manually lifted into place.
Since the MGX 8230 is shipped with all equipment pre-installed, you may have to remove some of the
service modules, the AC Power Supply Modules, or the Fan Tray Assembly to more easily lift the chassis
into the rack.
This section contains instructions to install a MGX 8230 chassis without the use of a mechanical lift.

Prepare for Installation
Review the following points before installation is begun:
•

Handle the PXM front card very carefully. This card contains a disk drive that is easily damaged.
Cisco recommends not removing the PXMs.

•

Before removing any modules or assemblies, Cisco suggests that you carefully note and write down
their location or slot number in the chassis.

•

The MGX 8230 includes a grounding wrist strap to protect the user and the electronic components
from electrostatic shock. This strap can be connected to the lower rear corner near the grounding
lug, or to the front panel.

•

Inserting the cards in the correct slot. If back cards are installed in the wrong slot, electrical damage
may occur. If a back card is inserted into a PXM back slot (1 or 2), damage to the card and backplane
can result. Never remove or insert either card in a PXM/SONET back card set with the power on.

•

If a service module back card is accidently inserted into slots 1 or 2 and then removed, check for
bent or broken pins on the backplane. Such damage can result in faulty operation of the switch.

•

Both the front card and the corresponding back card of all card sets must be installed for proper
operation.

•

If a back card is removed, reseated or changed for another back card, the associated front card must
be reset.

Remove the Front Cards
The front cards are held in place by a mechanical latch attached to the card. The top of a front card
corresponds to the left side of the MGX 8230 card cage as seen from the front, as shown in Figure 4-4.

Left side or
top of card

26267

Front Card Insertion/Extractor Lever

•••••

Figure 4-4

Slot

To remove a front card:

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Step 1

Insert a the small flat head screwdriver into the lever slot and press until the latch springs open
(approximately 10°).
There are two levers on the left and right side for single height cards, or top and bottom on double-height
cards.

Step 2

Caution

Step 3

Pull/rotate the insertion/extractor lever to disconnect the card from the backplane.

When extracting a front card, keep the card level until it is completely extracted from the chassis. Do
not allow the front cards to drop against the cards below them. This could damage components on
the cards.
Gently pull the card out of the card cage. Keep it level and make sure that the card does not hit the one
beneath it.

Remove the Back Cards
Back cards are retained with two captive screws: one at the top of the faceplate and one at the bottom of
the faceplate.
To remove a back card:
Step 1

Label and remove any cables connected to the back card.

Step 2

Use a screwdriver (flat or phillips as applicable) to undo the two retaining screws in the back card’s
faceplate.

Step 3

Pull both of the two extractor levers out to the horizontal position, this will start the removal of the card.

Step 4

Gently pull the card out of the card cage.

Rack Mount the MGX 8230 chassis
Even with the cards removed, the weight and bulk of the card cage mandate that three or more people
install it. Two installers can support and maneuver the MGX 8230 while a third secures it to the rack.

Caution

•

Rear mounting brackets cannot be installed before putting a unit in a 19-inch rack.

•

On MGX 8230 systems that will be mid-mounted, attach mid-mounting brackets before installing
the unit in a rack.

The MGX 8230 weighs 120 lbs to 150 lbs (54 kg to 68 kg) depending upon the number of installed
cards. Have two persons, one each side, lift the MGX 8230 into the rack, or use a mechanical lift as
shown in Install the MGX 8230 Using a Mechanical Lift (Recommended), page 4-6.

19-inch rack mounting
Follow these steps to mount an MGX 8230 in a 19-inch rack:

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Step 1

If applicable, attach one mid-mounting bracket to each side of the MGX 8230.

Step 2

Have two people position the MGX 8230 into the rack.

Step 3

Use the 10-32 truss head screws to secure the MGX 8230 to the front mounting rails (or mid-mounting
rails if appropriate).

Step 4

Use the10-32 screws to secure the MGX 8230 to the rear mounting rails and to the rear mounting bracket,
if applicable.

23-inch rack mounting
Follow these steps to mount an MGX 8230 in a 23-inch rack:
Step 1

Attach the 23-inch mounting brackets to both sides of the MGX 8230 chassis, as shown in Figure 4-5.

Step 2

Have two people position the MGX 8230 into the rack.

Step 3

Using hardware that you supply, and is appropriate for your 23-inch rack, secure the MGX 8230 to the
rack mounting rails.

Front View of MGX 8230 with 23-Inch Mid-Mounting Brackets

23829

Figure 4-5

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Re-install the front cards
Step 1

Be sure the extractor is in the unlatch position.

Step 2

Position the rear card guides over the appropriate slot at the left (top) and right (bottom) of the card cage.

Step 3

Gently slide the card all the way into the slot and then press/rotate the insertion/extractor lever (or both
levers on double-height cards) until it (or they) snaps into the vertical position.

Caution

Note

To prevent damage to components on the bottom side of the card, support the face plate and keep the
card level while sliding it into the chassis.

The card should slide in and out with only slight friction on the adjacent board’s EMI gaskets. Do
not force the card. Investigate any binding.

Re-install the back cards
Step 1

Ensure the two extractor levers are rotated to the “in” position. When the card is being inserted into the
slot, the levers should be horizontal along the line of the back card.

Step 2

Position the rear card edges over the appropriate guides at the left and right sides of the MGX 8230 card
cage.

Step 3

Gently slide the card all the way into the slot and push to seat the card.

Step 4

Alternately tighten the two captive screws on the back card’s faceplate.
Tighten the right and left captive screws in increments to prevent misalignment of the card. Do not
overtighten the screws, but secure the card.

Warning

Cards must be inserted in the correct slot positions. This is particularly true with back cards. If
service module back cards are inserted into slots intended only for MGX 8230 PXM back cards,
slots 1 and 2, damage can be done.
If you accidentally attempt to insert a service module back card into slots 1 and 2 and have
difficulty in operating the shelf, examine the backplane pins and the back card connector to see
if they have been bent or damaged.

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Connecting Power for DC Systems
DC power is connected to one or two DC PEMs located on the MGX 8230 chassis rear panel. You must
supply the wiring from the DC source(s) to the DC PEM(s). The wiring should be 10 AWG (4 square
millimeters).

Warning

Be sure the power to the shelf is OFF at this point. DO NOT apply power until later.

To connect DC power to a DC MGX 8230, follow these steps:
Step 1

Locate the DC power entry module(s) on the rear panel of the MGX 8230.
There will be one or two DC PEMs installed and shipped with your MGX 8230 according to your order.
Figure 4-6 illustrates the rear panel of an MGX 8230 with two DC PEMS, and Figure 4-7 illustrates the
rear panel of an MGX 8230 with one DC PEM.
Rear View of MGX 8230 with Two DC PEMs

23827

Figure 4-6

OFF

TB1

48 VDC
30A

OFF

TB1

48 VDC
30A

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Rear View of MGX 8230 with 1 DC PEM

23826

Figure 4-7

OFF

TB1

48 VDC
30A
3

Step 2

Locate the pluggable terminal block (TB1) on the DC PEM to which you are connecting source power.
DC Power Entry Module, Rear View

17275

Figure 4-8

OFF

TB1

48 VDC
30A
3

Step 3

Note the polarities of the TB1 connection points.
Figure 4-9 illustrates the polarity of each connection on the pluggable terminal block. The numbers start
with 1 on the left and go to 3. The connection at the left is for the –48 VDC wire. The middle wire is
Safety Ground. The connection at the right is for the positive return wire (for the –48 VDC).

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Figure 4-9

Polarities at MGX 8230 PEM Pluggable Terminal Block

-48 VDC
return
Safety
ground

26265

-48 VDC

1
Step 4

Locate the wiring block for TB1. Figure 4-10 illustrates the TB1 wiring block (that is, the mating plug
that attaches to TB1).

–48 VDC

26264

Figure 4-10 Pluggable Terminal Block on MGX 8230 PEM

–48 VDC Return
Safety ground
10 AWG
or 4 sq. mm.

Step 5

Insert and secure the stripped ends of the 10 AWG wire in the wiring block as shown in Figure 4-9 and
Figure 4-10. Figure 4-10 shows the assembly with an example wire and the screw that secures it in the
pluggable wire block.

Step 6

Plug the pluggable terminal block to the receptacle TB1 on the PEM.

Step 7

If you have a redundant DC PEM installed in your MGX 8230, repeat step 1 through step 6 for the second
DC PEM.

Step 8

For each DC PEM, connect the DC input wiring to a separate dedicated DC source capable of supplying
at least 30 Amps (typical). The –48VDC power source in the building should have a 30 Amp DC circuit
breaker. The building’s wiring should include an easily accessible disconnect device. Make sure the
safety ground wire connects to a reliable building (earth) ground.

Warning

For personnel safety, the green or green/yellow wire must connect to safety (earth) ground at both
the equipment and at the supply side of the DC wiring.

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Step 9

Before you turn on the system power, check the supply voltage.
The screws at positions 1 and 3 on the pluggable terminal block are convenient measuring points. Also,
check the impedance between the safety ground (screw at location 2 on the pluggable terminal block)
and the chassis. It should be close to 0.

Step 10

Turn the circuit breaker on all installed PEMs to the off position.

Step 11

Turn on the source power, and check the voltage at the screws at positions 1 and 3 on the pluggable
terminal block for all installed PEMs.

Step 12

Turn off the source power, and go to the section “Install the Cable Manager,” which is followed by the
section “Power up the MGX 8230.”

Connecting Power for AC Systems
This section describes how to connect AC power to an MGX 8230, which has an optional AC power
supply.
The optional AC power supply tray is factory-installed on the bottom of the MGX 8230 chassis. It is one
rack unit high and can hold one or two 1200 Watt AC Power Supply Modules. These modules must be
re-installed if they were removed during installation of the card cage.
Figure 4-11 illustrates a rear view of an AC Power Supply Module. Each AC Power Supply Module has
its own independent connectors, power switch, and LEDs.

23818

Figure 4-11 Optional 1200 Watt AC Power Supply Module, Rear View

AC DC

Each AC power supply module takes AC power and converts it to -48 VDC, which is then routed through
an external cable to the MGX 8230 backplane connector. (There are no DC PEMs in an AC-powered
MGX 8230.) Each power supply provides a signal that indicates the status of the power supply.

Note

There must be at least two inches of empty space around the front and rear panels of the AC power
supply for cooling air.

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The rear panel of each AC Power Supply Module has:
•

An AC input connector

•

A special cable that connects the DC output connector of the AC Power Supply Module to the MGX
8230 backplane is supplied with your MGX 8230 for each AC Power Supply Module.

•

Power Supply Enable (On/Off) switch

•

Status light

•

Power cable strain relief clamp

The AC Power Supply Module front panel has both a DC OK LED and an AC OK LED.

Installing AC Power Supply Modules in the AC Power Supply Tray (optional)
The AC Power Supply Modules slide into the Optional AC Power Supply Tray from the rear of the MGX
8230. As seen from the front of the MGX 8230, AC Power Supply A (PSA) is on the left, and AC Power
Supply B (PSB) is on the right. The front grill of the Optional AC Power Supply Tray has cutouts that
allow the AC OK and DC OK LEDs on the AC Power Supply Modules (PSA and PSB) to be seen.
If these power supplies were removed during installation of the card cage, follow the instructions below
to re-install them.
To install a 1200 Watt Power Supply Module in the AC Power Supply Tray, follow these steps:
Step 1

From the rear of the MGX 8230, slide a 1200 Watt AC Power Supply Module into the AC Power Supply
Tray.

Step 2

Secure the set screw on the top of the AC Power Supply Module to secure it in the AC Power Supply
Tray.

Step 3

Repeat step 1 and step 2 for the second 1200 Watt Power Supply Module if applicable.
If only one AC Power Supply Module is used in your system, make sure that the slot for the other AC
Power Supply Module is covered with a blank faceplate.

Making the Connections to the AC Power Supply Module(s)
Step 1

Connect a cable supplied with your MGX 8230 to the DC out connector on the optional AC power
supply.

Note

Without the DC cable connected to the MGX 8230 backplane, the AC power supply will not
power up. This is a safety feature.

The other end of this cable has a connector and a fixture for attaching to the MGX 8230 backplane. The
cable from the left AC Power Supply Module is connected to the connector on the left side of the MGX
8230 backplane. Likewise, the cable from the right AC Power Supply Module is connected to the
connector on the right side of the MGX 8230 backplane.
Step 2

Use the appropriate AC power cord to connect the AC power source to the IEC receptacle(s) on the AC
Power Supply Module and tighten the strain relief clamp to secure the cable.

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Step 3

Make sure that the building AC receptacle is properly grounded.

Step 4

Repeat steps 2 through 3 for the second AC Power Supply Module if appropriate.

Figure 4-12 illustrates a MGX 8230 chassis with two AC Power Supply Modules connected to the MGX
8230 backplane.
Figure 4-13 illustrates an MGX 8230 with one AC Power Supply Module connected to the MGX 8230
backplane. If only one AC Power Supply Module is used in your MGX 8230, make sure that there are
blank faceplates covering the slots for the second AC Power Supply Module and the opening where the
DC PEM would otherwise be installed.
In order for the AC power supply to function the enable switch must be in the “On” position, and the DC
cable must be connected between the AC power supply connector and the MGX 8230 backplane.
Proceed to the section “Install the Cable Manager,” which is followed by the section “Power up the MGX
8230.”

Note

An AC power module will not power on if the DC cable is disconnected from the MGX 8230
backplane.

23825

Figure 4-12 Rear View of MGX 8230 with Two Optional AC Power Supply Modules

AC DC
AC DC

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23824

Figure 4-13 Rear View of MGX 8230 with One AC Power Supply Module

AC DC
AC DC

Install the Cable Manager
A fully loaded MGX 8230 may have many cables attached to the rack’s modules. Cable management kits
are available for installation on the rear of rack modules. These kits provide the means to route the power
and data cables in a neat and orderly fashion to and from the modules in the MGX 8230. The cable
management system is shipped with attaching hardware along with your MGX 8230.
Install the cable management brackets after a rack mounted unit has been installed in a rack, or a
standalone MGX 8230 has been positioned. Figure 4-14 illustrates an installed cable management
system. When installing the cable management system on a rack-mount MGX 8230, the screws securing
the cable guides to the MGX 8230 chassis are inserted from the outside into the captive nuts in the
chassis. When installing the cable management system in a standalone MGX 8230, the screws securing
the cable guides to the MGX 8230 chassis are inserted from the outside into the captive nuts in the
chassis.

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23830

Figure 4-14 Cable Management System on Rack-Mount MGX 8230

The cable management system provides the following features:
•

Cards can be inserted or removed without disturbing cables attached to cards in adjacent slots.

•

Cables can be routed from both above and below the chassis.

Power up the MGX 8230
Before applying power to the MGX 8230, check the following items:
1.

Assure that the unit is properly connected to site safety grounding.

AC or DC power sources are correctly installed.

All cards are locked in the correct slots.

All cables are secure.

Control terminal is connected to the Console Port on the PXM-UI (and PXM-UI-S3) back card. (See
the “MGX 8230 Feeder” appendix in the Cisco IGX 8400 Series Installation and Configuration
document for Release 9.2.)

After the preceding checks, turn on the power. Check the following:
1.

At the front of the unit, the status light on the PXM should be green.

For an AC-powered system, the “AC” and “DC” LEDs on each AC Power Supply Module, as
applicable, should be green.

For a DC-powered system, the “DC OK” LED on each DC PEM should be on.

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After each service module comes up, the status LEDs on each should show that it is in standby.

When power is turned on, make a visual check to verify that all fans are running.

After the system comes up, execute the dsppwr command.

Configuring the MGX 8230 as an BPX Feeder
Connecting an MGX 8230 to an BPX and configuring it to function as a feeder is covered in Chapter 5,
“Configuring the MGX 8230 Shelf.”

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Configuring the MGX 8230 Shelf
Summary of Shelf-Level Tasks
This chapter describes the shelf-level tasks used to bring up and configure the MGX 8230. These tasks
are performed after all hardware is installed and the power is on and alarm-free.
The initial tasks require the use of the command line interface (CLI) on an ASCII terminal.
Subsequent steps are performed with either the CiscoView application or the CLI.
This chapter contains the following sections:

Note

•

User Interface Access Ports, page 5-2

•

MGX 8230 MGX to BPX Feeder, page 5-3

•

Initial MGX 8230 Bring-Up, page 5-3

•

Configuring Node-Level Parameters, page 5-6

•

CiscoView Configuration of a Feeder, page 5-13

The words “switch,” “node,” and “shelf” are synonymous for the MGX 8230 product.
The word “bay” refers to the upper or lower half of the enclosure.

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User Interface Access Ports

User Interface Access Ports
There are three external user-interface access ports on the PXM1 User Interface back card (PXM1-UI or
PXM-UI-S3): the control port, the Ethernet port and the maintenance port. See Initial MGX 8230
Bring-Up, page 5-3 for additional information on the use of these ports.

Control Port
The control port (sometimes called the console port), is accessed with a command line interface (CLI)
on an ASCII terminal. This port is used to make the initial IP address settings and to troubleshoot the
shelf.
Low-level control and troubleshooting can be accessed through the CLI on a terminal connected to the
shelf or through the CLI in a window of the Cisco WAN Manager application.

Initial Assignment of IP Addresses
IP addresses are assigned to the following:

Note

•

Ethernet port

•

maintenance port

•

inband ATM IP address: this address is used in MGX 8230 feeder applications to link the PXM1 and
BPX 8600 series switch.

•

the IP address of the statistics manager.

When the MGX 8230 is configured in a stand-alone application, only the workstation connected to
the shelf can detect these IP addresses.
Before CiscoView or the Cisco WAN Manager (formerly StrataView Plus) can be used, the IP addresses
for the shelf must reside on the workstation in the etc/hosts file. Also, the text file config.sv on the
workstation must contain the name of the shelf you intend to be the gateway node, the network ID, the
network name, and so on. See the Cisco WAN Manager documentation for the file system requirements
on the workstation.

Note

When you use the CLI, you must type all required parameters and any optional parameters before you
press Return or Enter.

Ethernet Port
Through the Ethernet port, you can use a workstation running a Cisco network management application
such as the Cisco WAN Manager or CiscoView application. Typically, the workstation on a LAN is
co-located with the MGX 8230.

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MGX 8230 MGX to BPX Feeder

Maintenance Port
Through the maintenance port (sometimes called the modem port), you can connect either a single
workstation running an IP-based application or a terminal server that supports multiple workstations.
The workstation must support SLIP. Typically, use of this port includes a modem because the shelf
resides at a remote location. The typical applications are software and firmware download or tasks that
require low-level access.

Other Ports
Other ports exist on the PXM1-UI and PXM-UI-S3. These ports support external clock sources and
external, third-party audio or visual alarm systems. For information on the function of other ports, see
Chapter 6, “Card and Service Configuration”

IP-Based Applications
The maintenance port and Ethernet port support IP-based applications. Through these ports, the
following applications run:
•

Telnet supports CLI command execution from any IP-based application window as well as a window
in the Cisco WAN Manager application.

•

TFTP lets you download firmware and upload and download configuration information.

•

SNMP supports equipment management through the CiscoView application and connection
management through the Cisco WAN Manager application.

MGX 8230 MGX to BPX Feeder
As a BPX feeder, the MGX 8230 concentrates user ATM, Frame Relay, and circuit emulation traffic and
feeds it to a BPX 8000 series switch over an OC-3 or OC-12 feeder trunk. The BPX series switch
performs the switching and routing of the MGX 8230 user-connections through an MGX and BPX
network. Figure 5-1 is a simplified diagram of the MGX 8230 MGX feeder application.
MGX 8230 MGX Feeder Application

T1/E1 ATM
T1/E1 Frame Relay
T3/E3 Frame Relay
T1/E1 Circuit Emulation

MGX 8230

BPX 8600
switch

BPX and MGX network

OC-3 ATM, OC-12, or T3/E3
feeder connection

Service interfaces

42293

Figure 5-1

Initial MGX 8230 Bring-Up
This section describes how to start up the MGX 8230 for the first time. It begins with an MGX 8230
PXM that has only boot-mode firmware. The descriptions tell you how to:
1.

Establish communication with the MGX 8230.

Configure one or more boot-level IP addresses to make the MGX 8230 available to the network.

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MGX 8230 MGX to BPX Feeder

Download MGX 8230 PXM firmware.

Configure a new, MGX 8230-level Ethernet IP address for the MGX 8230 PXM as needed or other
SLIP or IP addresses.

Specify a name for the MGX 8230.

Specify the time on the MGX 8230.

Optionally configure a time zone for the Western Hemisphere, or configure a time zone relative to
Greenwich Mean Time if the MGX 8230 resides outside the Western Hemisphere.

Download firmware to the service modules.

If the MGX 8230 PXM has no runtime (or “on-line”) firmware Image, begin with the boot-mode
description in the “Bringing Up an MGX 8230 PXM With No Run-time Firmware” section on page 5-4.
If the MGX 8230 PXM has a run-time firmware image, go to the section “Bringing Up an MGX 8230
PXM With No Run-time Firmware.”

Bringing Up an MGX 8230 PXM With No Run-time Firmware
The section describes the tasks for loading runtime firmware onto a MGX 8230 PXM that has only a
boot loader.
Step 1

Step 2

Establish communication with the MGX 8230 by doing one of the following:
•

Connect a cable between your terminal or PC and the PXM-UI or PXM-UI-S3 control port.

•

If you are using an ASCII terminal connected to the control port, the prompt for the next command
is already present upon power-up. (If the display is skewed, make sure the terminal speed and
PXM-UI or PXM-UI-S3 port speeds are the same.)

•

If you are using a utility such as Hyper Terminal on a PC, the firmware may reside on either a floppy
or the hard drive.

Execute the command bootChange to configure boot-level IP parameters.
If the MGX 8230 has a redundant MGX 8230 PXM, execute bootChange on each MGX 8230 PXM to
configure unique, boot-level IP addresses. (During the subsequent MGX 8230-level configuration, you
must configure another Ethernet IP address that applies to both MGX 8230 PXMs.) The following are
the only parameters that are meaningful at this point, so press Return other parameters:
•

Mandatory “host name” is a name for the workstation. For the MGX 8230, enter the letter c.

•

Ethernet IP address and subnet mask for the MGX 8230 PXM LAN port are mandatory (see “inet
on Ethernet” in the following example). Follow the IP address with a colon and a net mask. The
netmask is eight hexadecimal numbers with no embedded periods. Do not type spaces on either side
of the colon.

•

If the workstation from which you download firmware is on a subnet other than the subnet of the
MGX 8230 PXM, enter a gateway IP address (“gateway inet”).

Note the three editing functions near the top of the following example. Of these, typing a period to the
clear the current field is the most commonly used.
>bootChange
'.' = clear field; '-' = go to previous field;
boot device
: lnPci
processor number
: 0
host name
:c
file name
:
inet on ethernet (e) : 188.29.37.14:ffffff00

^D = quit

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inet on backplane (b):
host inet (h)
:
gateway inet (g)
: 188.29.37.1
user (u)
:
ftp password (pw) (blank = use rsh):
flags (f)
: 0x0
target name (tn)
:
startup script (s)
:
other (o)
:

The MGX 8230 PXM now has a boot-level IP address. Remember to repeat the bootChange command
on the redundant MGX 8230 PXM if the system has one.
Step 3

Enter reboot to reset the MGX 8230 PXM.
The MGX 8230 PXM is ready to receive a firmware image through the Ethernet port. Use the
workstation for the next steps.

Step 4

At the workstation, you can optionally ping the MGX 8230 PXM using the IP address to confirm that
the node is reachable.

Step 5

Establish communication with the MGX 8230 PXM according to the user-communication device type.
For example, at the prompt on a UNIX workstation, you could enter:
>tip -9600 /dev/ttya
The device specification could also be ttyb.

Step 6

Enter the tftp command with the IP address set at the ASCII terminal. For example, if the console port
is connected to the serial port of the workstation:
$tftp 162.29.38.101

Step 7

At the tftp prompt, enter binary mode:
>bin

Step 8

From the directory where the firmware resides, enter the put command and include the arguments that
specify the firmware release number, the statement that this firmware applies to the active MGX 8230
PXM, and the release directory.
If necessary, refer to the release notes for new firmware release numbers. The entries are case-sensitive.
For example:
>put pxm_release_number.fw POPEYE@PXM_ACTIVE.FW
where release_number is a decimal number in the form n.n.nn. Currently, the initial n typically is a “1.”
An example filename for MGX 8230 PXM firmware is “pxm_1.0.03.” Note that the download
automatically includes the firmware for the standby MGX 8230 PXM (if present). You can subsequently
see POPEYE@PXM_STANDBY.FW in c:/FW.
Check the console to verify that the transfer completed and the checksum passed.

Step 9

Quit the ftp application, then go to the ASCII terminal connected to the control port:
>quit

Step 10

At the ASCII terminal, cd to FW directory on the hard drive.

Step 11

List the contents to confirm that the firmware resides in the FW directory:
>cd “c:/FW”
>ll
Note these required quote marks are absent when you use the CLI after you reboot the MGX 8230 PXM
with its run-time image (see “Configuring Node-Level Parameters”).

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Step 12

Enter the following:
>setPXMPrimary “version”
where version is the version number of the firmware. The name of a MGX 8230 PXM firmware file has
the format pxm_version.fw. For example: in PXM_1.0.03.fw, version is 1.0.03.

Step 13

Reboot the system again:
>reboot
A login prompt appears on the ASCII terminal. The MGX 8230 PXM is now the same as an MGX 8230
PXM that Cisco ships with a run-time firmware image.

Configuring Node-Level Parameters
Except for adding a user or creating a password, all the tasks in this section can be performed with the
CiscoView application.

Resource Partitioning
A resource partition on an MGX 8230 PXM consists of a percentage of bandwidth, a VPI/VCI range,
and the number of global logical connection numbers (GLCNs) available to a network control
application. By default, all resources on a logical interface are available to any controller on a first-come,
first-served basis. In this release of the MGX 8230 MGX feeder application, Portable AutoRoute (PAR)
is the only network control application. Future releases of the MGX 8230 may include other network
control applications such as Multiprotocol Label Switching (MPLS), then the resources will have to be
carefully partitioned.

Note

The MGX 8230 PXM resources do not have to be partitioned for the MGX 8230 MGX feeder
application.

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Procedure
At the MGX 8230 CLI prompt on the ASCII terminal:
Step 1

Enter the default login and password provided in the release notes.
The terminal displays the slot number of the MGX 8230 PXM you have logged into by default:
card number [1]:

Step 2

Press Return to enter the CLI of this MGX 8230 PXM.
At run-time, you could also enter the slot number of a service module or a standby MGX 8230 PXM. In
this case, the CLI prompt shows:
NODENAME.1.1.PXM.a>
where NODENAME shows that the node has no name; the slot number of the MGX 8230 PXM is 1; and
this MGX 8230 PXM is active. The general format of the CLI prompt is:
nodename.1.slot.cardtype.a>
where nodename is the name of the node; the shelf (node) number is always 1; slot is the card location;
cardtype identifies the card; and the card state is active (a) or standby (s).

Step 3

Display the cards in the system:
NODENAME.1.1.PXM.a> dspcds

Step 4

Display any IP addresses in the system:
NODENAME.1.1.PXM.a> dspifip

Step 5

Change any IP addresses as needed:
NODENAME.1.1.PXM.a> cnfifip [BrocastAddr]
where interface is a number: 26 is the Ethernet (LAN AUI) port, 28 is the maintenance port (SLIP), or
37 for the ATM IP address (feeder application only). Note that BrocastAddr applies to only the Ethernet
interface (number 26).

Note
Step 6

Check the Release Notes for any variations in how to configure IP addresses.

Execute the cnfname command to assign a name to the MGX 8230:
UNKNOWN.1.1.PXM.a> cnfname
where node name is a case-sensitive name up to eight characters. For example:
UNKNOWN.1.1.PXM.a> cnfname cisco22

Step 7

Execute the cnftime command to specify the time on the MGX 8230:
cisco22.1.1.PXM.a> cnftime
where hh is the hour of the day in the range 1–24; mm is the minute of the hour in the range 1–60; and
ss is the number of seconds in the minute and has a range of 1–60.

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Step 8

Optionally configure a time zone for the node. Use cnftmzn to specify a time zone in the Western
Hemisphere. To configure a time zone outside the Western Hemisphere, first specify Greenwich Mean
Time (GMT) with cnftmzn then specify the offset from GMT by using cnftmzngmt:
•

cisco22.1.1.PXM.a> cnftmzn

where timezone is 1 for GMT, 2 for EST, 3 for CST, 4 for MST, 5 for PST.
•

cisco22.1.1.PXM.a> cnftmzngmt

where timeoffsetGMT is the offset in hours from GMT. The range of possible values for timeoffsetGMT
is -12 through +12.
Step 9

Execute the cnfstatsmgr command to specify the IP address of the workstation that runs the Cisco WAN
Manager application.
Before it sends statistics, the MGX 8230 must have the IP address of the workstation with this
application. The syntax is:
>cnfstatsmgr where IP_Addr is the IP address of the workstation.
If the node has a redundant MGX 8230 PXM, it automatically receives the same IP addresses and
configuration as the primary MGX 8230 PXM. With the IP addresses in place, you can configure the
logical ports for the broadband interface through the CiscoView application or the CLI.

Step 10

Add one or more users by executing adduser once for each new user.
Note that the access privilege level is case-sensitive as the syntax description indicates. After you enter
the privilege level, the system prompts for a new password for the user. (This password parameter does
not appear in the help information for adduser.)
adduser
user_Id is 1–12 alphanumeric characters.
accessLevel is the case-sensitive privilege level. It can be ANYUSER or within the range
GROUP1–GROUP5. For example, to specify a privilege level 2, type GROUP2.
After you enter a user-name and privilege level, the system prompts for a password. The password is a
string of 5–15 characters. If you press Return without entering a password, the system assigns the default
password “newuser.”

Step 11

Optionally change your password or another user’s password by executing:
cnfpasswd [username]
username is the name of another user whose password you are changing. That user must have a privilege
level that is lower than your privilege. To change your own password, enter cnfpasswd with no
username.

Step 12

To specify the MGX 8230 as a feeder, execute the cnfswfunc command:
cnfswfunc <-ndtype>
and follow -ndtype with “fdr.”

Step 13

Configure an external clock if needed:
•

cnfextclk : “1” is for T1 connections, “2” is for E1 connections.

For external clocking with the PXM-UI back card, the Stratum level must be set to “4.”
•

cnfclklevel 4: to enable Stratum 4 clocking.

For external clocking with the PXM-UI-S3 back card, the Stratum level must be set to “3.”
•

cnfclklevel 3: to enable Stratum 3 clocking.

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Stratum 3 clocking is available only with the PXM-UI-S3 back card. Stratum 4 clocking is
available only with internal clock sources or with the PXM-UI back card.

Note

Downloading Firmware to a Service Module
This section describes how to download firmware for a service module from a workstation. The
descriptions apply whether you are upgrading the existing firmware or downloading because no runtime
firmware resides on the hard drive.
Service modules do not retain runtime firmware. The hard drive on the MGX 8230 PXM may come with
default firmware for the service modules, but the details of the customer order actually determine
whether firmware is on the disk. If default firmware exists on the hard drive, the MGX 8230 PXM
downloads it upon power-up or when you reset the card, otherwise you can download firmware from the
workstation according to the instructions that follow.
Note that if you download firmware from a workstation to the hard drive, the MGX 8230 PXM does not
automatically load the firmware to the card. You must reset the card (resetcd on the CLI) to download
firmware from disk to the card. With the single execution of a command, you can load either generic
firmware for all cards of a certain type or firmware destined to a specific slot.
To load service module firmware from a workstation to the hard drive on the MGX 8230 PXM:
Step 1

Start the tftp application:
$tftp
then
>bin

Step 2

To download generic firmware for a type of service module to the MGX 8230 PXM hard drive:
>put cardtype.fw POPEYE@SM_1_0.FW
where cardtype is the firmware for a type of card; the shelf number always is 1; and the 0 represents the
slot number for the purpose of generic download. An example of cardtype.fw is “frsm8t1e1_10.0.11.fw.”
Note the space between “.fw” and “POPEYE.”

Step 3

To load slot-specific firmware at a particular card:
>put cardtype.fw POPEYE@SM_1_slot.FW
where cardtype is the firmware, and slot is the number of the card slot. Note the space between “.fw”
and “POPEYE.” Repeat this step for each slot as needed.

Note

Slot-specific firmware overwrites the current firmware at a slot.

With slot-specific firmware, the card does not come up if you do either of the following:
•

Specify the wrong firmware, where the firmware specified by cardtype does not match the targeted
card at slot.

•

Insert a different card (which does not use the firmware specified for the slot).

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An example command for downloading specific firmware for an FRSM-2CT3 in slot 3 is:
>put frsm2ct3_10.0.01.fw POPEYE@SM_1_3.FW
where “frsm2ct3_10.0.0” refers to the firmware for the FRSM-2CT3, and “3” is the slot.

Note

See the Release Notes for current names of firmware files and release directories.

Step 4

When you have finished downloading firmware, enter quit to quit the tftp application.

Step 5

At the CLI on either the workstation or the ACSII terminal, display the firmware files. Note that the
directory specification ll c:/FW has no quote marks.
cisco22.1.1.PXM.a> ll c:/FW

Step 6

If you want to download the firmware from the disk to a card, execute resetcd.

MGX 8230 CLI Configuration of a Feeder
This section first describes how to use the CLI to configure physical and logical characteristics of the
equipment, such as physical line, logical ports, and resource partitioning. The section then describes how
to add daxcons and three-segment connections. To do these tasks, the requisite IP addresses must have
been assigned. The descriptions tell you how to:
•

Specify that the application of the MGX 8230 is a feeder to a BPX series switch.

•

At the card-level, optionally specify the total number of connections available to each network
controller (PAR, and so on).

•

Activate a line on the broadband interface of the MGX 8230 PXM—only one line for an MGX
feeder.

•

Optionally modify the characteristics of the line.

•

Create one or more logical ports on the line. Each port has associated bandwidth and VPI/VCI
ranges. By default, each controller competes for all the resources you assign to the port.

•

Optionally specify the amount of resources a network controller has on a logical port rather than
allow the controllers to compete for resources.

•

Add the MGX 8230 shelf from the BPX side.

Configuring the OC-3 Uplink
The MGX 8230 PXM uses only an OC-3 uplink back card as a feeder trunk.
Step 1

Execute the cnfswfunc command to specify the feeder application:
cnfswfunc <-vsvd enable(yes)/disable(no)> | <-ndtype>
Follow -ndtype with “fdr” or “routing.” The default application is routing.You can configure one option
each time you execute cnfswfunc.

Step 2

If the MGX 8230 must support the paid feature of virtual source/virtual destination (VSVD) on ABR
connections, execute cnfswfunc. The cnfswfunc syntax is:
cnfswfunc <-vsvd enable(yes)/disable(no)> | <-ndtype>
where you follow “-vsvd” with “e” or “d.”

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Step 3

Optionally, modify the resource partitioning for the whole card by executing the cnfcdrscprtn
command. You can view resource partitioning through dspcdrscprtn.
cnfcdrscprtn
number_PAR_conns is the number of connections in the range 0–32767 available to PAR.
number_PNNI_conns is the number of connections in the range 0–32767 available to PNNI.
number_TAG_conns is the number of connections in the range 0–32767 available to Tag.
For example, you could reserve 10,000 connections for each controller on the MGX 8230 PXM with:
cnfcdrscprtn 10000 10000 10000

Note
Step 4

In this release, there is no need to partition MGX 8230 PXM resources.
Activate the uplink line by executing addln according to the following syntax:
addln -ds3 | -e3 | -sonet
where:
•

-ds3 indicates a T3 line

•

-e3 indicates an E3 line

•

-sonet indicates an OC-3 or OC-12 line

•

slot is always 1 for the MGX 8230 PXM whether the active MGX 8230 PXM is in slot 1 or 2

•

line has the range 1–4 but depends on the number of lines on the uplink card

You can activate only one MGX 8230 PXM line for the feeder application.
Step 5

If necessary, you can configure line characteristics by using the cnfln command.

Step 6

Create logical ports for the physical line by executing addport once for each logical interface. (Related
commands are cnfport, dspports, and delport.)
addport
port_num is the number for the logical port. The range is 1–32 for standard connections, and 34 is the
port number reserved for inband ATM PVCs for network management.
line_num is the physical line in the range 1–N. N is the number of lines on the card.
pct_bw is percentage of bandwidth. The range is 0–100. This parameter applies to both ingress and
egress.
min_vpi is the minimum VPI value. The range is 0–4095.
max_vpi is the maximum VPI value. The range is 0–4095.

Step 7

Optionally use cnfportrscprtn to specify the resources that a controller has on a port:
cnfportrscprtn

port_no is the number for the logical port in the range 1–32 for user-connections or 34 for inband ATM
PVCs for network management.
controller is a string identifying the network controller—”PAR,” “PNNI,” or “TAG.”
ingress_%BW is the percentage of ingress bandwidth—a number in the range 0–100.
egress_%BW is the percentage of egress bandwidth—a number in the range 0–100.

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min_vpi is the minimum VPI Value—a number in the range 0–4095.
max_vpi is the maximum VPI Value—a number in the range 0–4095.
min_vci is the minimum VCI Value—a number in the range 0–65535.
max_vci is the maximum VCI Value—a number in the range 0–65535.
max_chans is the maximum GLCNS—a number in the range 0–32767.
Step 8

Execute cnfifastrk to configure the port as a trunk. To change the port usage after you execute
cnfifastrk, first execute the uncnfifastrk command.
cnfifastrk

Step 9

•

slot.port is the slot and port number of the line you want to serve as the trunk. Note that, whether
the active MGX 8230 PXM is in slot 1 or 2, always specify slot 1 in CLI syntax because this
parameter is a logical value.

•

trunk is the MGX 8230 application and can be either “fdr” for a feeder or “rtrk” for a stand-alone
node. Specify “fdr.”

Establishing the BPX 8600-to-BPX 8600 Series Segment
For a three-segment connection, establish a BPX 8600-to-BPX 8600 series (middle) segment. Execute
addcon at one of the BPX 8600 series nodes, as follows.
•

For slot and port number, specify slot and port of the BXM connected to MGX 8230 node.

•

For VPI and VCI, specify the VPI and VCI at the endpoint on the PXM1.

•

For Nodename, use the name of the BPX 8600 series switch at the far end of the connection.

•

For Remote Channel, specify the slot and port number of the BXM port attached to the MGX 8230
node at the far end. Specify the VPI as the slot number of the remote MGX 8230 FRSM connected
to the BPX 8600 series switch, and specify VCI as the LCN of the Frame Relay connection at the
remote MGX 8230 node.

•

Specify the type of connection. Enter ATFST if the ForeSight feature is operating and ATFR if this
feature is not operating.

Specify the other addcon bandwidth parameters such as MCR, PCR, %Util, and so on.
•

Minimum Cell Rate (MCR) is only used with the ForeSight feature (ATFST connections).

•

MCR and Peak Cell Rated (PCR) should be specified according to the following formulae.

•

MCR = CIR *3/800 cells per second.

•

PCR = AR * 3/800 cells per second but less than or equal to 6000.
AR = Frame Relay port speed in bps. For example,

For example:

AR equals 64K, PCR = 237, or
AR speed equals 256K, PCR = 950, or
AR speed equals 1536K, PCR = 5703

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The preceding MCR and PCR formulae are predicated on a relatively small frame size of 100 octets, and
even smaller frame sizes can result in worst-case scenarios. For example:
For a frame size of 64 octects the PCR formula becomes:

PCR = AR * 2/512 cells per sec

For a frame size of 43 octects the PCR formula becomes:

PCR = AR * 2/344 cells per sec

% Util should be set to the same value as that used for the Frame Relay segments of the connection.

CiscoView Configuration of a Feeder
This section describes how to use the CiscoView application to create and optionally modify the
characteristics of the logical ports on the MGX 8230 uplink card. It provides another way of configuring
the MGX 8230. To configure equipment on an MGX 8230, you must use Release 2.x or higher of
CiscoView. No CiscoView screen representations appear in this appendix. For a description of
CiscoView usage, see the CiscoView documentation. The task descriptions begin from the point where
you have already specified all IP addresses and the top-level CiscoView window is on-screen. The task
descriptions tell you how to:
•

Specify that the application of the MGX 8230 is a feeder to a BPX series switch.

•

At the card level, optionally specify the number of connections available to a network controller.

•

Activate and optionally modify the characteristics of a line on the broadband interface of the MGX
8230 PXM—only one line for an MGX feeder.

•

Create 1–32 logical ports on the line. By default, each network controller can compete for all the
resources you assign to the port.

•

Optionally specify the amount of resources each network controller has on a logical port rather than
allow the controllers to compete for resources. (Note that for this release PAR is the only network
controller using MGX 8230 resources.)

Selecting an MGX 8230
To reach the target MGX 8230:
Step 1

Click on the File option at the top of the CiscoView - Main window, then click on the Open Device
option.

Step 2

Enter the node name or IP address of the MGX 8230 in the Device Select window. When the graphical
representation of the MGX 8230 shows the cards’ faceplate features, you can begin configuration.

Step 3

You can configure features from either the front or back view of the MGX 8230. Optionally, select a side
of the MGX 8230 through the View option at the top of CiscoView - Main.

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Note

If you configure MGX 8230 PXM features at the back card, select the Configure Card options by
clicking with the left mouse button on the MGX 8230 PXM back card but away from the connectors.
If you successfully select the card features, an outline of the entire back card lights up. To select the
Configure Line features, click on the back card near the connectors. If you select the line features,
an outline around the connectors lights up. Similarly, in the front view, select either a port LED for
line configuration or a nonspecific area of the MGX 8230 PXM front card for card configuration.

Specifying the Feeder Application
To specify that the MGX 8230 operate as a feeder to a BPX series switch:
Step 1

Click with the left mouse button on the MGX 8230 PXM so that the card outline lights up.

Step 2

Click on the Configure option at the top of the CiscoView - Main window; then click on the highlighted
“card” choice that appears under “Configure.” The Configure Card box appears. Next to the
“CATEGORY” label, the menu button shows “Card.”

Step 3

Click on Card to display the node configuration options.

Step 4

Select PAR Configuration. The Configure PAR window opens.

Step 5

Click on the menu button next to the CATEGORY field to display the PAR topics.

Step 6

Select PAR SW Configuration. The PAR Configuration box shows the defaults of “false” for VS/VD and
“routing” for Node Type. Change the selection to “feeder.”

Step 7

Select Modify at the bottom of the box.

Step 8

Select Cancel to exit the PAR Configuration box or select another PAR topic at the menu button next to
the CATEGORY field.

Activating a Physical Line for the Uplink
To activate a line for the uplink:
Step 1

Click on the LED that corresponds to the MGX 8230 PXM line you want to activate. For the feeder
application, only port 1 is selectable. If you correctly select the LED of an inactive line, an outline of
the LED lights up. If an outline of the card lights up, you have selected the card rather than the port.

Step 2

Click on the Configure option at the top the screen then the line option in the subsequent pull-down list.
The Configure Line window appears and shows the selected line with its current characteristics.

Step 3

Change appropriate line characteristics as needed, then select the LineEnable button and change the state
to “enable.”

Step 4

Click on the Modify button to transmit any configuration changes and enable the line.

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Configuring Logical Interfaces for the Feeder
To configure logical, broadband interfaces on the physical interface:
Step 1

Select the MGX 8230 PXM by clicking on the faceplate of the card. An outline of the card lights up.

Step 2

Select “Configure” then “card” at the top of the MGX 8230 graphic. The Configure Card window
appears with information on the current card.

Step 3

Click on the button next to the CATEGORY field, then select Broadband Interfaces. A matrix appears
for configuring logical interfaces on the active lines. The maximum number of user-ports is 32.

Step 4

Select the Create button to add a logical interface. A text box appears that lets you enter:

Step 5

Note

•

A number in the range 1–32 for the new logical interface

•

The port number of the physical line to which you assign the logical interface

•

A percentage of the maximum bandwidth on the line for the new logical interface

•

A minimum VPI number for the new logical interface in the range 0–4095

•

A maximum VPI number for the new logical interface in the range 0–4095

Type a value in each of the fields, then press the Apply button. The message “Addition of broadband
interface is successful” appears, otherwise an error message appears. Example errors are entries
out-of-range or values that conflict with existing configurations.

The Create window’s message of successful addition of an interface is accurate, but new interfaces
do not appear in the Configure Broadband Interfaces per Card window until you close and reopen
this window.

Step 6

If necessary, specify additional interfaces in the matrix. You can leave the Create box open and write
over residual text or reopen this box later.

Step 7

Select the Cancel button at the bottom of the window to exit.

If you subsequently want to delete or change a logical interface:
Step 1

Open the Broadband Interfaces window.

Step 2

On the row for the targeted logical interface, move the cursor to the Status column and hold the left
mouse button down on the current status. A small menu opens with “add, “del,” and “mod” choices.
•

Select “del” to delete the interface.
or

•
Step 3

Select “mod” to change a parameter.

Select the Modify button at the bottom of the window. To see the result of any changes, close then reopen
the Broadband Interfaces window.

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Configuring the MGX 8230 Shelf

MGX 8230 MGX to BPX Feeder

Partitioning Resources on the Broadband Interface
Note in this release, since PAR is the network controller controlling the MGX 8230, there is no need to
configure resources.

Configuring the Line as a Feeder Trunk
A line connected to the MGX 8230 PXM line module can function as a feeder trunk. In addition to
configuring the use of the trunk at the MGX 8230, you must also configure the trunk at the far-end BPX.
To configure the trunk for the feeder application at the near-end:
Step 1

Open the Configure Card window.

Step 2

For the CATEGORY, select PAR Configuration.

Step 3

In the PAR Configuration window, select PAR Interface. In the PAR Interface window, the only
configurable column is the PAR Interface Type.

Step 4

For the logical interface type—1 for the feeder trunk—hold the left mouse button down in the PAR
Interface Type column for this logical interface. The choices are “feedertrunk” and “routing trunk.”

Step 5

Select “feedertrunk,” then click on the modify button at the bottom of the screen.

Step 6

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C H A P T E R

Card and Service Configuration
This chapter describes how to configure the MGX 8230 cards and the services they support.
This section also contains instructions to configure resource partitions, add local connections and
three-segment connections. Detailed descriptions of these tasks for individual service modules appear in
subsequent sections.
Although many of the configuration and connection tasks can be done with either Cisco WAN Manager
(CWM) and CiscoView network management applications, this appendix uses the MGX 8230 command
line interface commands in its examples. Refer to the appropriate CWM 9.2.xx and CiscoView 2.xx
documentation for information about using those applications with the MGX 8230.

Connections on a Feeder
The MGX 8230 MGX feeder can support local connections (daxcons) and three-segment connections
across the network. How you add connections depends on the technology of the service module, which
card is the master or slave end of the connection, and whether the connection is a daxcon or part of a
three-segment connection. The following rules govern connection addition in an MGX 8230 feeder.
The descriptions of connection addition later in this section reflect these rules:
1.

If the MGX 8230 PXM is an endpoint, it functions as the slave. The service module is the master
end.

For a daxcon, you first add the connection at the slave end then add it at the master end. Further,
when you start by adding a connection at the slave end, the system generates the remote (master)
connection ID for you. The remote connection ID contains required information for adding the
connection at the master end.

For a three-segment connection, you start the segment by adding a connection at the master end. In
this case, you specify the connection ID of the slave end of the segment and subsequently use that
information for adding the connection at the slave end.

If the remote termination is an MGX 8230 PXM on the other side of a network cloud, specify the
slot number as “0.” (This requirement applies to only the feeder application of the MGX 8230.)

Modifying the Resource Partitioning
A resource partition on a card consists of a percentage of bandwidth, a DLCI or VPI/VCI range, and the
number of logical connection numbers (LCNs) available to a network control application. On the MGX
8230 PXM, the connections are global logical connections (GLCNs). By default, all resources on a

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Sequence of Configuration Tasks

logical interface are available to any controller on a first-come, first-served basis. If necessary, you can
modify the resources for a controller at the card level and logical port level. Port-level resource
modification follows card-level modification, so the available port-level resources depend on whether
and how much you change the card-level resource partitioning. You do not have to change the resource
partitioning for the card before changing resource partitioning for a port.
The current network control application is Portable AutoRoute (PAR). Planning considerations should
include the possibility of modifying the partitioning of resources for the interface. For example, the
MGX 8230 has the capacity to support a Cisco Multiprotocol Label Switching (MPLS) controller or a
Private Network to Network Interface (PNNI) controller.

Note

There is no need to partition MGX 8230 service module resources in this release of the MGX 8230
BPX feeder.

Sequence of Configuration Tasks
In a new MGX 8230, the common approach is to configure the same aspect for all cards at once—adding
logical ports, for example. In contrast, the likely sequence for installing a new or replacement card is to
begin with the card-level features and continue until you have added every connection. The common
tasks for a new MGX 8230 are:
1.

Activate physical lines.

Optionally configure the line if default parameters are not appropriate.

Create the logical ports then modify as needed the logical ports.

Optionally configure resource partitions for a logical port if the default partitioning does not support
the intended operation of the port. (With this release of MGX 8230 BPX feeder, there is no need to
partition resources.)

Add connections, then modify as needed individual connections.

Rules for Adding Connections
This section describes the rules for adding local connections, three-segment connections, and
management connections. The MGX 8230 can support
•

Local-only, digital access cross-connect (DAX) connections

•

Three-segment connections across an ATM or Frame Relay network

As a preface to the steps for adding connections, this section describes the applicable rules for these
connections. Although the rules include references to CLI syntax, they also apply to the Cisco WAN
Manager application.

Rules for Adding a DAX Connection
A DAX con is a connection whose endpoints for the entire connection exist on the same MGX 8230. The
following apply to the MGX 8230:
1.

On a feeder, a DAX con can exist between different service modules or within the same service
module.

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Rules for Adding Connections

A stand-alone node supports DAX cons with one or both endpoints on the MGX 8230 PXM in
addition to DAX cons between service modules.

Either endpoint can be the master.

The first endpoint to add is the slave. The generic syntax is:
addcon
where local parameters are the port, DLCI or VPI and VCI, and mastership status. Slave is the
default case, so you actually do not have to specify it. When you press Return, the system returns
an identifier for this connection. The identifier includes the port and DLCI or VPI and VCI.
Use the returned identifier to specify the slave endpoint when you subsequently add the connection
at the master end. The slave endpoint is specified as the remote parameters in item 5..

To complete the DAX con, add the master endpoint. The generic syntax is
addcon
where local parameters are the port, DLCI or VPI and VCI, and mastership status (master in this
case). The remote parameters are the items in the connection identifier that the system returned
when you added the slave endpoint.

If the endpoint is a MGX 8230 PXM port in a stand-alone node, specify the slot as 0. The addcon
command is the only command in which you specify the slot number for the MGX 8230 PXM as 0.

Rules for Adding Three-Segment Connections
A three-segment connection consists of a local segment on each MGX 8230 at the edges of the network
cloud and a middle segment across the network cloud. Figure 6-1 illustrates a three-segment Frame
Relay connection. The MGX 8230 requirements are:
1.

For MGX 8230 feeders, the backbone must consist of MGX 8000 series or BPX 8600 series
switches.

On a feeder, the local segment exists between a service module and the MGX 8230 PXM.

On a stand-alone node, the local segment can be between a service module and the uplink port on
the MGX 8230 PXM.

For the local segment, add the connection at only the master endpoint. The generic syntax is:
addcon
where local parameters are the port, DLCI or VPI and VCI, and mastership status (master in this
case). The remote parameters are the current nodename, slot, port, and VPI and VCI of the slave
end. For the MGX 8230 PXM endpoints, specify the slot number as 0. The addcon command is the
only command in which you specify the slot number for the MGX 8230 PXM as 0.

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Figure 6-1

Frame Relay Connection Through an MGX 8230/BPX Network
Segment 1

Segment 2

Customer Equipment to
MGX 8230 to BPX switch

Segment 3
Customer Equipment to
MGX 8230 to BPX switch

BPX network

BPX

T1
Channel

Port

F
R MGX
S 8230
M

BPX

Port

T1
B
Channel

BPX Backbone
Network
47139

F
MGX R
8230 S
M

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The Processor Switching Module

The Processor Switching Module
This section describes how to activate and configure the card-level parameters, lines, and ports on the
PXM1 uplink card.
This section also describes how to add connections to the PXM1 in a stand-alone node.
The descriptions include instructions complete the following tasks:

Note

•

Modify the resource partitioning at the card level (optional).

•

Activate a line on the uplink card. On a stand-alone node, you can activate more than one line if the
uplink card has multiple lines. One physical line must be the trunk to a network routing node.

•

Optionally configure a clock source on the PXM1 or a service module. Note that a service module
line must be active before you can configure it as a clock source. Refer to the section “Configuring
Synchronization for the Shelf” for more information.

•

If the shelf has a pair of SRMs for bulk distribution and you use the CLI rather than the CiscoView
application, activate the SRM lines from the PXM1.

•

Optionally modify the resource partitioning at the port level.

•

Create logical ports.

•

On a stand-alone node, specify the cell header type. UNI cell headers typically apply where a
workstation connects to a UNI port on the uplink card rather than a port on the PXM1-UI card. Such
an implementation is not common.

•

On a stand-alone node, add standard connections and optional management connections.

•

On a stand-alone node, configure Automatic Protection Switching (APS).

•

For a feeder, execute steps on the connected BPX 8600 series switch to make the feeder an available
resource in the network.

For a description of the bit error rate test (BERT) functions, see the section titled “Bit Error Rate
Testing Through an MGX-SRM-3T3.”

Configuring Synchronization for the Shelf
This section defines the clock sources for the MGX 8230, then describes how to configure each source.

Clock Sources
The available clock sources are as follows:
•

The internal clock comes from an oscillator on the PXM1. It is the default source when the shelf
first comes up and remains so until you specify a different clock source. This default source is a
Stratum 4 clock. Stratum 3 can also be used as an internal clock source.

•

The trunk interface clock originates on a BPX 8600 series node or another vendor’s switch and
comes through the line on the PXM1’s back card.

•

An external clock source comes from an external timing source and arrives at the T1 or E1
connections on the PXM1 user interface back card. Frequently, the external device is a highly
reliable, dedicated device.

•

For external Stratum 4 clock sources, the PXM1-UI back card must be used.

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•

For external Stratum 3 clock sources, the PXM-UI-S3 back card must be used.

See the “Making External Clock Connections” section on page 2-4 for information on the
physical connections for external clocking.

Note

•

An additional step is necessary to configure an external clock source (see below).

•

A UNI interface on a service module or PXM1 UNI port can be a clock source. A line must be active
before you can specify it as a clock source.

Clock Source Types
The clock types are primary, secondary, and tertiary.
For example, you could configure an external clock source as the primary source, a line as a secondary
source, and the internal oscillator as the tertiary source. Note that if you specify a tertiary source, it is
always the internal oscillator.

Clock Source Configuration
After the PXM1 broadband interfaces and the service module lines have been configured, you can
configure the clock sources through the CiscoView application or the CLI. If you use the CLI, execute
cnfclksrc on the active PXM1 one time for each clock source:
cnfclksrc
The parameter slot.port specifies the clock source. If a service module provides the source, slot is the
slot number of the card, and port is the number of the line that provides the clock.
On the PXM1:
•

slot is 7 regardless of where the active PXM1 resides.

•

port for the inband clock is always 1.

•

port for the external clock is always 35.

•

port for the UNI line (stand-alone only) depends on the number of lines you have set up on the back
card.

The value for clktyp is P for primary, S for secondary, T for tertiary, or N for null. The only purpose of
null is to remove the clock configuration that currently applies to the specified source (slot.port).

Caution

Be careful not to set multiple primaries and secondaries.

Configuration Example
For example, to configure the inband interface as the primary clock source and an external clock device
as the secondary source, execute the following two commands.
Step 1

Specify the clock source:
a.

For an external clock source:
popeye1r.1.8.PXM.a > cnfclksrc 7.35 S

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For an internal clock source:
popeye1r.1.8.PXM.a > cnfclksrc 7.1 P

Step 2

Check the configuration by executing dspclksrc.
If you have specified an external clock source, use the CiscoView application or the CLI command
cnfextclk to select the T1 or E1 line and the impedance of the line. The syntax for cnfextclk is:
cnfextclk
ClockType can be 1 for T1 or 2 for E1. Impedance can be 1 for 75 ohms, 2 for 100 ohms, or 3 for
120 ohms.

Step 3

Specify the Stratum level of the clock source (Stratum 3 or Stratum 4).
cnfclklevel
The level can be 3 for Stratum 3 clocking, or 4 for Stratum 4 clocking.

Note

For external clocking sources, Stratum 3 is supported by the PXM-UI-S3 card; Stratum 4
sources are supported by the PXM1-UI back card. Either Stratum 3 or Stratum 4 can be used
as internal clocking sources.

Configuring PXM1 Card-Level Parameters, Lines, and Ports
This section describes how to configure card-level features, activate a physical line, and configure
logical elements such as a port.
Refer to the section titled “Sequence of Configuration Tasks, page 6-2” for background information on
these types of tasks.
Step 1

Optionally, you can modify the resource partitioning for the whole card by executing cnfcdrscprtn. You
can view resource partitioning through dspcdrscprtn.
cnfcdrscprtn
•

number_PAR_conns is the number of connections in the range 0–32767 for PAR.

•

number_PNNI_conns is the number in the range 0–32767 available to PNNI.

•

number_TAG_conns is the number of connections in the range 0–32767 for MPLS.

For example, you could reserve 10,000 connections for each controller on a PXM1 with:
cnfcdrscprtn 10000 10000 10000
Step 2

Activate a line by executing addln:
addln -ds3 | -e3 | -sonet
•

-ds3 indicates a T3 line parameter follows.

•

-e3 indicates an E3 line parameter follows.

•

-sonet indicates an OC-3 or OC-12 line parameter follows.

•

slot is the slot number for the PXM1. If the switch has a redundant pair of SRMs, execute addln
again for those slots.

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•

line has the range 1–4 but depends on the number of lines on the back card.

For a feeder, you can activate only one line. For a stand-alone, you can activate more than one line if the
back card has multiple lines. One line must serve as the trunk to the ATM network. With an OC-3, T3,
or E3 card, remaining lines can serve as UNI ports to CPE.
Step 3

If necessary, modify the characteristics of a line by using cnfln.

Step 4

Configure logical ports for the physical line by executing addport. Execute addport once for each
logical port. Related commands are cnfport, dspports, and delport.
addport
•

port_num is the number for the logical port. The range is 1–32 for user-ports or 34 for inband ATM
PVCs that serve as management connections.

•

line_num is the line number in the range 1–4 but depends on the type of uplink card.

•

pct_bw is the percentage of bandwidth. The range is 0–100. This parameter applies to both ingress
and egress.

•

min_vpi is the minimum VPI value. On a feeder, the range is 0–4095. On a stand-alone node, the
range is 0–255.

•

max_vpi is the maximum VPI value. On a feeder, the range is 0–4095. On a stand-alone node, the
range is 0–255.

Using an example of 100% of the bandwidth on one logical port 1:
addport 1 1 100 1 200
where the first “1” is the logical port number; the second “1” is the line number on the PXM1 back card
to which you are assigning this logical port number; “100” is the percentage of bandwidth this port has
in both directions; and the VPI range is 1–200.
Step 5

If necessary, use cnfportrscprtn to modify port-level resources for a controller:
cnfportrscprtn

Step 6

•

port_no is the logical port number in the range 1–32 for user-connections or 34 for inband ATM
PVCs for network management.

•

controller is a string identifying the network controller—“PAR,” “PNNI,” or “TAG.”

•

ingress_%BW is the percentage of ingress bandwidth in the range 0–100.

•

egress_%BW is the percentage of egress bandwidth in the range 0–100.

•

min_vpi is the minimum VPI in the range 0–4095.

•

max_vpi is the maximum VPI in the range 0–4095.

•

min_vci is the minimum VCI in the range 0–65535.

•

max_vci is the maximum VCI in the range 0–65535.

•

max_chans is the maximum GLCNS in the range 0–32767.

On a stand-alone node, specify the cell header type as needed by executing cnfatmln.
cnfatmln
•

line_num is the line number in the range 1–4.

•

type is either 2 for UNI or 3 for NNI (the default).

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UNI cell headers typically apply where a workstation connects through a line to a PXM1 UNI port
(rather than a SLIP-based port on the PXM1-UI card). Such an implementation is not common, so
cnfatmln usually is not necessary.

Automatic Protection Switching on the PXM1
Automatic Protection Switching (APS) provides redundancy for an OC-3 or OC-12 line on the PXM1
(if a failure occurs someplace other than the PXM1 front card). The failure can originate on the daughter
card, uplink card, or any part of the physical line.
With APS, the active PXM1 remains active and passes the cells from the failed line-path through the
redundant line. The advantage of APS is that a line switchover requires significantly less time than a full
PXM1 switchover.

Note

A failure of the PXM1 front card in a redundant system causes the entire PXM1 card set to switch
over.
As defined in GR-253, a variety of APS modalities are possible (see the command summaries that
follow).

APS Requirements
The current requirements for APS service on an MGX 8230 shelf are:
•

Redundant PXM1s (currently, the PXM1 does not support an APS configuration where the working
and protection lines on the same uplink card).

•

A “B” version of an OC-3 or OC-12 back card (SMLR-1-622/B, and so on).

•

The connected network shelf or CPE must also support APS.

APS Configuration
Initial APS specification consists of the working and protection slot and line and the mode for APS. After
the initial APS specification, you can configure additional APS parameters, give commands for
switching lines, and display the APS configuration. The CiscoView application and CLI provide access
to the APS feature. For detailed descriptions of the CLI commands, see the Cisco MGX 8230 Wide Area
Edge Switch Command Reference. Note that APS is available for only the “B” versions of the SONET
cards—SMLR-1-622/B, and so on. The applicable CLI commands are:
•

addapsln to specify the lines and mode for APS

•

cnfapsln to modify the following details of APS operation:
– error thresholds
– wait period before the PXM1 restores the working line after errors clear
– unidirectional or bidirectional switchover, which specifies whether one or both directions of a

line are switched when the criteria for a hard or soft failure are met for one direction
– revertive recovery, where the working line automatically returns to operation after errors clear

and any wait period has elapsed

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– enable use of K1 and K2 bytes in the line-level frame for equipment at both ends to exchange

APS-related information
•

delapsln to delete the APS configuration

•

dspapsln to display the configuration for an APS-configured line

•

switchapsln to issue commands for line switching that:
– clear previous user requests
– lock out (block) line switching
– manually switch to the protection line if the following are true: no errors exist, the working line

is active, and your request has an equal or higher priority than the last switch request.
– force a line switch regardless of existing errors if the following are true: the working line is

active and your request has an equal or higher priority than the last switch request.
– switch all traffic to either the working lines or protection lines so you can remove a card (applies

to only the currently supported configuration of 1+1 mode on two uplink cards).
To specify APS, use the following syntax:
addapsln
where workline and workingslot identify the line and slot of the APS working line, and protectionline
and protectionslot identify the protection line and slot. According to GR-253, the archmode identifies
the type of APS operation. The mode definition includes:
1.

1+1 on one back card

1+1 on two back cards

1:1

Annex B

Currently, the only supported mode is 1+1 with two uplink cards (mode=2). With 1+1 APS, both the
working line and the protection line carry duplicate data even though no error threshold has been
exceeded or line break has occurred. This mode requires that two standard cables (rather than a Y-cable)
connect at two ports on the equipment at the opposite end. With the two-card implementation, workline
must be the same as protectionline.

Adding Connections on a PXM1 in a Stand-Alone Node
This section describes the CLI commands for provisioning connections on a PXM1 in a stand-alone
node. Connection addition conforms to the rules for a standard connection or a management connection.
(See “Rules for Adding Connections” earlier in this chapter). In addition, this section describes the
commands for modifying specific features for a connection and policing connections by way of usage
parameter control (UPC).
The CLI commands correspond to functions in the Cisco WAN Manager application. The preferred CLI
command is addcon. (If the application requires NSAP addressing, use addchan to add a connection
and cnfchan to modify a connection. To see the syntax for these two commands, refer to the command
reference.)
Complete the following steps on the PXM1 CLI:
Step 1

Execute the addcon command according to the following syntax:

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addcon [CAC] [mastership]
[remoteConnId]
•

port_no is the logical port in the range 1–32 for a user connection or 34 for a management
connection.

•

conn_type is a number identifying the connection type—1 for VPC or 2 for VCC.

•

local_VPI is the local VPI in the range 0–4095.

•

local_VCI is the local VCI in the range 0–65535.

•

service is a number in the range 1–4 to specify the type of service: 1=CBR, 2=VBR, 3=ABR, and
4=UBR.

•

(Optional) CAC lets you turn off the loading effect of a connection on the aggregated load on a port.

•

mastership specifies whether the endpoint you are adding is the master or slave: 1=master. 2=slave
(default). The syntax shows this parameter as optional because you need to enter it at only the master
end. Slave is the default, so you do not need to specify it explicitly when entering a DAX con.

•

remoteConnId identifies the connection at the slave end. The format for remoteConnId is
Remote_nodename.slot_num.remote_VPI.remoteVCI.

Note
Step 2

The slot number of the active PXM1 is always 0 when you add a connection.

If necessary, modify a connection by using cnfcon:
cnfcon [CAC]

Step 3

•

conn_ID identifies the connection. The format is logical_port.VPI.VCI.

•

route_priority is the priority of the connection for rerouting. The range is 1–15 and is meaningful
only in relation to the priority of other connections.

•

max_cost is a number establishing the maximum cost of the connection route. The range is 1–255
and is meaningful only in relation to the cost of other connections for which you specify a maximum
cost.

•

restrict_trunk_type is a number that specifies the type of trunk for this connection. Specify 1 for no
restriction, 2 for terrestrial trunk only, or 3 for satellite trunk only.

•

CAC optionally lets you turn on or off the addition of the loading effect of a connection to the
aggregated load on a port.

As needed, specify usage parameter control according to the connection type. Use either cnfupccbr,
cnfupcvbr, cnfupcabr, or cnfupcubr. This step defines the parameters for each of these commands.
Note that the parameters for cnfupcvbr and cnfupcabr are the same. Also, the polType parameter has
numerous variations in accordance with ATM Forum v4.0. For a list of these variations, see Table 6-1
after the syntax descriptions.
cnfupccbr
•

conn_ID identifies the connection. The format is port.vpi.vci.

•

polType is the policing type. The choices are 4 or 5. See Table 6-1 for a description of these types.

•

pcr is the peak call rate in the range 50–1412832 cps.

•

cdvt is the cell delay variation tolerance in the range 1–5000000 microseconds.

•

IngPcUtil is the percentage of utilization on the ingress. The range is 1–100.

•

EgSrvRate is the egress service rate. The range is 50–1412832 cps.

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•

EgPcUtil is the percentage of utilization on the egress. The range is 1–100.

cnfupcvbr or cnfupcabr

•

conn_ID identifies the connection. The format is port.vpi.vci.

•

polType is the policing type in the range 1–5. See Table 6-1 for a list of these types.

•

pcr is the peak call rate in the range 50–1412832 cps.

•

cdvt is the cell delay variation tolerance in the range 1–5000000 microseconds.

•

scr is the sustained cell rate. The range is 50–1412832 cps.

•

mbs is the maximum burst size. The range is 1–5000000 cells.

•

IngPcUtil is the percentage of utilization on the ingress. The range is 1–100.

•

EgSrvRate is the egress service rate. The range is 50–1412832 cps.

•

EgPcUtil is the percentage of utilization on the egress. The range is 1–100.

cnfupcubr
•

conn_ID identifies the connection. The format is port.vpi.vci.

•

polType is the policing type. The range is 3–5. See Table 6-1 for a list of these types.

•

pcr is the peak call rate in the range 50–1412832 cps.

•

cdvt is the cell delay variation tolerance in the range 1–5000000 microseconds.

•

IngPcUtil is the percentage of utilization on the ingress. The range is 1–100.

Table 6-1

Policing Definitions According to Policing and Connection Type

Policing by
Connection Type

ATM Forum TM spec.
4.0 conformance
definition

PCR Flow
(1st leaky
bucket)

CLP tagging
(for PCR
flow)

SCR Flow
(2nd leaky
bucket)

CLP tagging
(for SCR
flow)

CBR

CBR.1

CLP(0+1)

off

n/a

polType=4

(PCR Policing only)

CBR

When policing=5 (off) off

n/a

off

n/a

UBR

UBR.1

CLP(0+1)

off

n/a

polType=3

when CLP setting=no

UBR

UBR.2

CLP(0+1)

CLP(0)

yes

polType=4

when CLP setting=yes

UBR

Policing is off

off

n/a

off

n/a

VBR and ABR

VBR.1

CLP(0+1)

polType=1

VBR and ABR

VBR.2

CLP(0+1)

CLP(0)

polType=5

polType=2

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Table 6-1

Policing Definitions According to Policing and Connection Type (continued)

Policing by
Connection Type

ATM Forum TM spec.
4.0 conformance
definition

PCR Flow
(1st leaky
bucket)

CLP tagging
(for PCR
flow)

SCR Flow
(2nd leaky
bucket)

CLP tagging
(for SCR
flow)

VBR and ABR

VBR.3

CLP(0+1)

CLP(0)

yes

(when Policing=4)

CLP(0+1)

off

n/a

Policing is off

off

n/a

off

n/a

polType=3
VBR and ABR
polType=4
VBR and ABR
polType=5

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Chapter 6

Card and Service Configuration

ATM Universal Service Module (AUSM)

ATM Universal Service Module (AUSM)
The MGX-AUSM/B-8T1 and MGX-AUSM/B-8E1 ATM Universal Service Modules are eight port
multipurpose card sets for T1 or E1 lines. This section includes the following instructions for the CLI:
•

Summary of AUSM Features, page 6-14

•

Configure the Card, Lines, and Ports, page 6-15

•

Configure Inverse Multiplexing, page 6-17

•

Adding and Configuring Connections on the AUSM/B, page 6-17

Summary of AUSM Features
The ATM Universal Service Modules (AUSM) include the following features:

Note

•

ATM UNI with high port-density for the CPE—with AUSMs in all 8 service module slots, an
MGX 8230 shelf can support up to 64 individual T1 or E1 lines. An individual card set can support
1000 data connections and 16 management connections.

•

Inverse multiplexing for ATM (IMA) that complies with ATM Forum v3.0 and v3.1—the 8-port
AUSM can provide N x T1 or N x E1 logical ports up to maximum rates of 12 Mbps for T1 or
16 Mbps for E1.

•

Classes of Service—CBR, ABR, non-real-time VBR, real-time VBR, and UBR with per-VC
queuing on ingress and multiple Class-of-Service queues on egress. ABR includes support of both
ForeSight ABR and standard ABR (TM 4.0 compliant).

•

Statistics collection.

•

Virtual path connections (VPCs).

•

Network synchronization derived from one of its lines.

•

Bit error rate test (BERT) functionality with loop back pattern generation and verification on
individual lines or logical port. For a description of the BERT functions, see the section titled “Bit
Error Rate Testing Through an MGX-SRM-3T3.”

•

1:N redundancy through the optional MGX-SRM-3T3/C card.

•

Automatic card-restore.

•

SNMP and TFTP to support card and connection management.

•

Resource partitions for individual network control applications.

See the “ATM UNI Service Module (AUSM)” section on page 2-15 for additional information on
AUSM features.

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Configure the Card, Lines, and Ports
You can activate and configure the AUSM card, lines, and ports with either the CLI or the CiscoView
application. This section includes descriptions of the CLI commands used to perform the following
tasks:
•

Optionally modify resource partitioning at the card level

•

Activate and configure a line

•

Create and configure a logical port

•

Optionally modify resource partitioning at the port level

•

Configure usage parameters

•

Configure queue depths

•

Configure the ForeSight ABR feature

•

Configure standard ABR

•

Configure a line as a clock source

Note

For connection-related tasks, see Adding and Configuring Connections on the AUSM/B,
page 6-17.

On the CLI of the AUSM/B:
Step 1

If necessary, modify the resource partitioning for the whole card by executing the cnfcdrscprtn
command. You can view resource partitioning through dspcdrscprtn.
cnfcdrscprtn
•

number_PAR_conns is the number of connections in the range 0–1000 for PAR.

•

number_PNNI_conns is the number of connections in the range 0–1000 for PNNI.

•

number_TAG_conns is the number of connections in the range 0–1000 for MPLS.

For example, you could reserve 300 connections for each controller on the AUSM with:
cnfcdrscprtn 300 300 300
Step 2

Activate a physical line by using addln for each of the eight lines as needed:
addln

Step 3

Optionally, use the cnfln command to specify line coding, line length, and clock source:
cnfln [E1-signaling]

Step 4

Execute upport to activate the logical operation of the line:
upport , where port_number is in the range 1–8.

Step 5

If necessary, execute cnfportq to modify the egress queues:
cnfportq

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•

port_num is the logical port number in the range 1–8.

•

q_num

is the queue number in the range 1–16; 0 is the default for addchan.
1=CBR
2=VBR
3=ABR
4=UBR

•

q_algo

is a number to specify the queue algorithm:
0=disable queue
1=high priority—always serve
2=best available
3=minimum guaranteed bandwidth
4=minimum guaranteed bandwidth with maximum rate shaping
5=CBR with smoothing

Step 6

•

q_depth is the maximum queue depth in the range 1–16000 cells.

•

clp_high is the high cell loss priority in the range 1–16000 cells.

•

clp_low is the low cell loss priority in the range 1–16000 cells.

•

efci_thres is the EFCI threshold in the range 1–16000 cells.

If necessary, configure resources at the port level by executing cnfportrscprtn. Use dspportrscprtn to
see the current resource partitioning.
cnfportrscprtn
[VCImin/VCImax]
•

port_num

is the port number in the range 1–8.

•

controller

is a number representing the controller: 1=PAR, 2=PNNI, and
3=MPLS.

•

ingress_%BW

is the percentage of ingress bandwidth in the range 0–100.

•

egress_%BW

is the percentage of egress bandwidth in the range 0–100.

•

number_of_cons is the maximum number of connections on the port.

•

VPImin/VPImax is the minimum and maximum VPI numbers.

•

VCImin/VCImax is the optional specification for VCI range.

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Configure Inverse Multiplexing
This section describes the CLI command sequence for configuring the IMA feature.
Step 1

addln on all constituent links.

Step 2

cnfln if necessary.

Step 3

addimagrp (or addaimgrp) to create the IMA group by using the following syntax:
addimagrp
•

group_num is a number for IMA group. The range is 1–8.

•

port_type

•

list_of_links is the list of links to be included in the group. Separate each link
number by a period.

•

minNumLink is the minimum number of links in the range 1–8 to form a group.

is the port type: 1=UNI, 2=NN1.

For example: the following creates IMA group 1 with lines 3, 4, and 5. The minimum is 3.
addimagrp 1 3.4.5 3

IMA-related commands are dspimagrp, dspimagrpcnt, dspimagrps, dspimainfo, and dspimalncnt.
Refer to the Cisco MGX 8800 Series Switch Command Reference for descriptions.

Adding and Configuring Connections on the AUSM/B
Connections can be added and modified through the Cisco WAN Manager or the CLI. Refer to applicable
documentation if you use the WAN Manager application.
This section describes how to add an ATM connection through the CLI according to the rules for adding
a standard connection or a management connection in the form of either a DAX con or a three-segment
connection. See “Rules for Adding Connections” earlier in this chapter.
On the CLI of the AUSM/B:
Step 1

Execute the addcon command.
When you add a connection with addcon, the system automatically assigns the next available channel
number, so addcon does not require it. However, some related commands require a channel
number—cnfchanfst, cnfchanq, cnfconstdabr, and cnfupcabr, for example. To see the channel number
after you add a connection, use dspcons.
The addcon syntax is:
addcon [Controller_Type] [mastership]
[remoteConnID]

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•

port number

is in the range 1–8.

•

vpi

has a value in the range 0–255.

•

vci

can be in the range 0–65535 for a VCC or * for a VPC.

•

Conn type

is the connection type: 0=VCC, and non-0 is the local ID of a
VPC in the range 1–1000.

•

Service Type

is the service type: 1=CBR, 2=VBR, 3=Standard ABR, 4=UBR,
5=rt-VBR, and 6=ForeSight ABR.

•

mastership

is the mastership status of the endpoint: 1=master, and 2=slave.
The default is slave, so you actually do not need to type a 2.

•

Controller_Type is the optional controller specification: 1=PAR (the default}.
2=SPVC (PNNI).

•

connID

Note

Step 2

is entered at only the master end and consists of the node name,
slot number, port number, vci, and vpi of the slave end.

To migrate between ForeSight ABR and TM 4.0 ABR, the connections must be manually
deleted and then re-added. This migration is not possible at run-time.

To configure usage parameter control (UPC) for the connection (channel), use cnfupccbr, cnfupcvbr,
cnfupcrtvbr, cnfupcabr, or cnfupcubr. Use dspcons to obtain the channel number.
cnfupccbr

•

port.vpi.vci

identifies the connection.

•

enable/disable is the UPC enable: 1=disable, 2=enable.

•

pcr[0+1]

is the peak cell rate. Without IMA, the range is as follows:
– T1, 10–3622 cells per second
– E1, 10–4528 cells per second
– clear E1, 10–4830 cells per second

For IMA, multiply the line rate by the number of links.
•

cdvt[0+1]

is the cell delay variation tolerance for cells with CLP=0 and
CLP=1. The range is 1–250000 microseconds.

•

IngPcUtil

is the percent utilization on the ingress. The range is 1–127. The
default is 0.

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•

EgSrvRate

is the egress service rate. Without IMA, the range is as follows:
– T1, 10–3622 cells per second
– E1, 10–4528 cells per second
– clear E1, 10–4830 cells per second

For IMA, multiply the line rate by the number of links.
•

EgrPcUtil

is the percent utilization on the egress. The range is 1–127.
The default is 0.

cnfupcvbr has the same syntax and parameters as cnfupcabr
cnfupcvbr or cnfupcabr

•

port.vpi.vci identifies the connection.

•

enable

is the enabled/disable for UPC: 1=Disable, 2=Enable.

•

pcr

is the peak cell rate. Without IMA, the range is as follows:
– T1, 10–3622 cells per second
– E1, 10–4528 cells per second
– clear E1, 10–4830 cells per second

For IMA, multiply the line rate by the number of links.
•

cdvt

cdvt[0+1] is the cell delay variation tolerance for cells with
CLP=[0+1]. The range is 1–250000 micro seconds.

•

scr

is the peak cell rate. Without IMA, the range is as follows:
– T1, 10–3622 cells per second
– E1, 10–4528 cells per second
– clear E1, 10–4830 cells per second

For IMA, multiply the line rate by the number of links.
•

scr_police specifies the type of scr policing: 1= CLP[0] cells,
2=CLP[0+1] cells, and 3=no SCR policing.

•

mbs

•

IngPcUtil is the percent utilization on the egress. The range is 1–127. The
default is 0.

is the maximum burst size: the range is 1–5000 cells.

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•

EgSrvRate is the egress service rate. Without IMA, the range is as follows:
– T1, 10–3622
– E1, 10–4528
– clear E1, 10–4830

For IMA, multiply the line rate by the number of links.
•

EgrPcUtil is the percent utilization on the ingress. The range is 1–127. The
default is 0.

•

clp_tag

is the enable for CLP tagging: 1=disable, 2=enable.

cnfupcubr
•

port.vpi.vci identifies the connection.

•

enable

is the enabled/disable for UPC: 1=Disable, 2=Enable.

•

pcr

is the peak cell rate. Without IMA, the range is:
T1, 10–3622
E1, 10–4528
clear E1, 10–4830
For IMA, multiply the line rate by the number of links.

•

cdvt

cdvt[0+1] is the cell delay variation tolerance for cells with
CLP=[0+1]. The range is 1–250000 micro seconds.

•

scr

is the peak cell rate. Without IMA, the range is:
T1, 10–3622
E1, 10–4528
clear E1, 10–4830
For IMA, multiply the line rate by the number of links.

Step 3

•

scr_police specifies the type of scr policing: 1= CLP[0] Cells,
2=CLP[0+1] cells, and 3=no SCR policing.

•

mbs

is the maximum burst size: the range is 1–5000 cells.

•

IngPc

is the percent utilization on the ingress. The range is 1–127. The
default is 0.

•

clp_tag

is the enable for CLP tagging: 1=disable, 2=enable.

Use cnfchanfst to configure the parameters for a ForeSight channel, if necessary.
•

ForeSight ABR is a connection-level feature that require the Rate Control Feature to be enabled on
the card.

cnfchanfst

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•

port.vpi.vci identifies the connection.

•

enable

•

fgcra_enabl is the enabled/disable for the Frame-based generic cell rate
e
algorithm: 1=disable, 2=enable.

•

ibs

is the initial burst size in the range 0–5000 cells.

•

pcr

is the peak cell rate. Without IMA, the range is:

is the enabled/disable for the ForeSight feature:
1=disable, 2=enable.

– T1, 10–3622
– E1, 10–4528
– clear E1, 10–4830

For IMA, multiply the line rate by the number of links.
•

mcr

is the minimum cell rate. Without IMA, the range is:
– T1, 0–3622
– E1, 0–4528
– clear E1, 0–4830

For IMA, multiply the line rate by the number of links.
•

icr

is the initial cell rate. Without IMA, the range is as follows:
– T1, 0–3622
– E1, 0–4528
– clear E1, 0–4830

For IMA, multiply the line rate by the number of links.

Step 4

Use cnfconstdabr to configure the parameters for a standard ABR (TM 4.0 compliant).
cnfconstdabr
.
Please note the following:
•

Standard ABR is a connection-level feature that requires the Rate Control Feature to be enabled on
the card.

•

Virtual Source/Virtual Destination behavior (VS/VD) is not supported.

•

Standard ABR does not support Explicit Rate (ER) marking of RM cells.

•

cnfconabrrates can be used to modify the rates:
Usage: cnfconabrrates

•

cnfconabrparams can be used to modify the parameters:
Usage: cnfconabrparams

•

rif and rdf values for a Standard ABR connection need to be configured to be <= PCR for the
connection.

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Step 5

Variable

Description

Value range

Default value

Chan_Num
ABRType

ABRType

1 (Switch Behavior) and 2 (Source Destination 1 (Switch
Behavior).
Behavior)

mcr

Minimum Rate Valid value range from 10 to 38328 (includes
RM cell and Data cell bandwidth).

Derived from
PCR(0+1)

pcr

Peak Rate

Valid value range from 10 to 38328 (includes
RM cell and Data cell bandwidth).

Derived from
PCR (0+1)

icr

Initial Cell
Rate

Valid value range from 10 to 38328 (includes
RM cell and Data cell bandwidth).

Derived from
PCR (0+1)

rif

Rate Increase
Factor

Valid range from 1 to 32768 (power of 2)

rdf

Rate Decrease
Factor

Valid range from 1 to 32768 (power of 2)

nrm

Inrate Cell
Count

Valid value range from 2 to 256 (power of 2).

trm

Time limit for
Frm

Valid value range from 3 to 255 msec.

255 msec.

tbe

Transient Buf
Exposure

Valid value range from 0 to 16777215 cells.

16777215 cells

frtt

Fixed Round
Trip Time

Valid value range from 0 to 16700 msec.

0 msec.

adtf

ACR Decrease
Time Factor

Valid value range from 10 to 10230 msec.

500msec.

cdf

Cutoff
Decrease
Factor

Valid value range from 0 to 64 (power of 2).

If necessary, change the queue depths by using cnfchanq.
cnfchanq

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Frame Service Module Features

•

port.vpi.vci

identifies the connection.

•

discard_option is either 1 for CLP hysteresis or 2 for Frame-based.

•

vc_q_depth

•

clp_thresh_high is the CLP high threshold in the range 1–16000 cells.

is the ingress queue depth in the range 1–16000 cells.

clp_thresh_low is the CLP low threshold in the range 1–16000 cells for
CLP hysteresis-based discard.
• or
or
• epd_threshold
•

is the EPD threshold in the range 1–16000 cells
Frame-based discard.
•

efci_thresh

is the EFCI threshold in the range 1–16000 cells.

BPX 8600-to-BPX 8600 Segment
For the middle segment, be sure to use the connection type as the local segments on the MGX 8230 node
(CBR, VBR, ABR, or UBR). The parameters directly map from those specified at the connection
endpoint.

Frame Service Module Features
This section describes the features available on each of the Frame Service Modules (FRSMs). The
primary function of the FRSM is to convert between the Frame Relay formatted data and ATM/AAL5
cell-formatted data. For an individual connection, you can configure network interworking (NIW),
service interworking (SIW), ATM-to-Frame Relay UNI (FUNI), or frame forwarding.

Note

See the “Frame Relay Service Modules” section on page 2-20 for more information on the features
of the FRSM modules.
An FRSM converts the header format and translates the address for:
•

Frame Relay port number and DLCI

•

ATM-Frame UNI (FUNI) port number and frame address or frame forwarding port

•

ATM virtual connection identifier (VPI/VCI)

This section includes the following topics:
•

Summary of Frame Service Module Features, page 6-24

•

Configuring the FRSM Cards, Lines, and Ports, page 6-28

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Frame Service Module Features

Summary of Frame Service Module Features
This section contains a summary of the features common to all FRSM models. The following
sub-sections also contain summaries of the features unique to each type of FRSM.
All FRSMs support:
•

Frame Relay-to-ATM Network Interworking (NIW) as defined in FRF.5.

•

Frame Relay-to-ATM Service Interworking (SIW) with or without translation as in FRF.8.

•

Frame Forwarding.

•

ATM Frame-UNI.

•

Maximum frame sizes of 4510 bytes for Frame Relay and 4096 bytes for ATM-FUNI.

•

Per-virtual-circuit (VC) queuing in the ingress direction (toward the cell bus). Traffic arriving at the
network on a connection has a dynamically assigned buffer at the entrance to the shelf. Buffer size
depends on the amount of traffic and the service-level agreement (SLA).

•

Advanced buffer management. When a frame arrives, the depth of the queue for the LCN is
compared against the peak queue depth scaled down by a specified factor. The scale-down factor
depends on the amount of congestion in the free buffer pool. As the free buffer pool begins to empty,
the scale-down factor is increased, preventing an excessive number of buffers from being held up by
any single LCN.

•

Multiple, priority-level queuing to support class of service on the egress. The FRSM services egress
queues according to a weighted priority. The priority depends on the percentage of logical port
bandwidth needed by all connections of a particular type on a port. The FRSM supports a:
– High-priority queue
– Real-time Variable Bit Rate (rt-VBR) queue
– Common queue for non-real-time Variable Bit Rate (nrt-VBR) and ABR connections
– UBR queue

•

Initial burst per channel. After a period of silence, the FRSM sends a configurable number of bytes
at a peak service rate.

•

The ForeSight option (except on MGX-FRSM-HS1/B). This Cisco mechanism for managing
congestion and optimizing bandwidth monitors the utilization of ATM trunks. It proactively adjusts
the bandwidth for connections to avoid queuing delays and cell discards.

•

Consolidated Link Layer Management (CLLM), an out-of-band mechanism to transport
congestion-related information to the far end.

•

Dual leaky bucket policing. Within the basic parameters such as committed burst, excess burst, and
CIR, incoming frames go into two buckets: those to be checked for compliance with the committed
burst rate and those to be checked for compliance with the excess burst rate. Frames that overflow
the first bucket go into the second bucket. The buckets “leak” by a certain amount to allow for
policing without disruption or delay of service.

•

Standards-based management tools. Each FRSM supports SNMP, TFTP for configuration and
statistics collection, and a command line interface. The Cisco WAN Manager application provides
full graphical user interface support for connection management. The CiscoView application
provides equipment management.

•

MGX 8800 series network management functions, including image download, configuration upload,
statistics, telnet, UI, SNMP, trap, and MIBs.

•

OAM features: LMI and Enhanced LMI (ANNEX A, ANNEX D, Strata LMI).

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•

Hot standby with 1:1 redundancy (see sections for individual FRSM card types).

•

Resource partitioning at the card level or port level.

•

Bit error rate test (BERT) functions for all card types except the HSSI card types. For a description
of BERT on the MGX-FRSM-2T3E3, see the forthcoming section titled “Bit Error Rate Testing on
an Unchannelized T3 or E3 FRSM.” Running a BERT session on an MGX-FRSM-2CT3 or an
eight-port FRSM requires a set of MGX-SRM-3T3s in the system. For a description of BERT on
these cards, see the section titled “Bit Error Rate Testing Through an MGX-SRM-3T3.”

•

User-selectable weighted fair queuing or fixed-rate queuing. The user can select either fixed-rate
queuing to provide highest egress port speed while reducing quality of service or weighted fair
queuing to provide maximum quality of service but slower egress port speed. This feature applies to
the FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2 cards.

•

Subrate support is provided for the MGX-FRSM-2T3E3 card. This feature applies to the
MGX-FRSM-2T3E3 card only when used with Digital Link equipment.

Note
•

Subrate capability is not supported on Kentrox equipment.

Zero CIR Service for FRSM-VHS and FRSM-8T1 and FRSM-8E1 cards

MGX-FRSM-2CT3 Features
The specific features are:
•

Up to 4000 user-connections

•

Two T3 lines

•

Up to 256 logical ports

•

Logical port speed from DS0 56 Kbps through DS1 1.536 Mbps

•

Support for five Class of Service (CoS) queues (high priority, rt-VBR, nrt-VBR, ABR, UBR)

•

Supports Hot Standby with less than 1 second switchover using 1:1 redundancy through Y-cable
redundancy (no Service Resource Module required)

•

OAM Continuity Traffic Generation Test for use on defective PVCs

MGX-FRSM-2T3E3 Features
The specific features are:
•

Up to 2000 user-connections

•

Two T3 or E3 lines coinciding with two logical ports

•

ADC Kentrox and Digital Link methods for supporting fractional T3 or E3 ports

•

Maximum possible number of DLCIs per port by using the Q.922 two-octet header format

•

Support for five Class of Service (CoS) queues (high priority, rt-VBR, nrt-VBR, ABR, UBR)

•

Supports Hot Standby with less than 1 second switchover using 1:1 redundancy through Y-cable
redundancy (no Service Resource Module required)

•

Fractional T3 speeds available through either the Digital Link or ADC Kentrox method

•

Supports running lines at subrates when used with Digital Link equipment

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Frame Service Module Features

•

OAM Continuity Traffic Generation Test for use on defective PVCs

MGX-FRSM-HS2 Features
The specific features are:
•

Up to 2000 user-connections

•

Maximum two logical ports

•

Two HSSI lines with configurable line speeds in multiples of 56 Kbps or 64 Kbps

•

Selectable DTE or DCE mode for each port

•

In DCE mode, per port clock speeds of NxT1 and NxE1 up to 52 Mbps

•

Various DTE/DCE loopback operations

•

Maximum possible number of DLCIs per port by using the Q.922 two-octet header format

•

Supports Hot Standby with less that 1 second switchover using 1:1 redundancy through a Y-cable

MGX-FRSM-HS1/B Features
The specific features and characteristics are:
•

Up to 200 data connections

•

In addition to data connections, support for:
– LMI according to ITU-T Q.333 Annex A and ANSI T1.617 Annex D
– OAM messaging

•

Total card throughput of 16 Mbps

•

Choice of operating card as either X.21 or V.35

•

Maximum of 8 Mbps per line

•

Choice of DTE or DCE mode for each line

•

A maximum frame size of 4510 bytes

•

One-to-one mapping between a logical port and a physical line

•

Support for metallic (internal) loopback (ITU-T type 1)

•

V.35-specific alarms (in addition to standard alarms such as LOS, and so on):
– Inactive DCD and CTS signals in DTE mode (red alarm)
– Inactive RTS signal in DCE mode (red alarm)
– Selected line type (through cnfln on the CLI, for example) and the attached cable are

incompatible (red alarm)
– Disconnected cable, such as a disconnect at the far end (creating LOS, a red alarm)
– No cable attached (a red alarm)
•

Support for ANSI/EIA/TIA-613-1993 and ANSI/EIA/TIA-612-1993

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Configuring Frame Relay Service

Eight-Port FRSM Features
The specific features are:
•

Up to 1000 user-connections.

•

Fractional FRSMs support a single 56 Kbps or multiple 64 Kbps user-ports (FR-UNI, FR-NNI,
FUNI, and Frame forwarding) per T1 or E1 line.

•

Channelized FRSMs (AX-FRSM-8T1-C and AX-FRSM-8E1-C) support multiple 56 Kbps or N x
64 Kbps user-ports per line up to the physical line bandwidth limit.

•

Bulk distribution for T1 only through the MGX-SRM-3T3. See the “Service Resource Module”
section in this chapter.

•

Redundancy support: the MGX-SRM-3T3 can provide 1:N redundancy for T1 or E1 operation if the
FRSM uses an SMB-8E1 back card.

•

Supports OAM Loopback non intrusive test

•

Supports zero CIR service

•

Standard ABR (TM 4.0 compliant)

•

Class of Service (COS) mapping

Configuring Frame Relay Service
This section first describes how to configure the FRSM card, lines, and ports, then describes how to add
connections. The descriptions are for the CLI execution of the tasks.

Note

FRSM card, lines, and ports can also be configured using the CiscoView application. Refer to the
CiscoView documentation for the directions.

Note

The easiest way to add connections is by using the Cisco WAN Manager application. For full details
of how to set up a connection through the WAN Manager GUI, refer to the Cisco WAN Manager
Operations manual.
This section contains information on the following:
•

Configuring the FRSM Cards, Lines, and Ports, page 6-28

•

Adding a Frame Relay Connection, page 6-31

•

Establishing the BPX 8600-to-BPX 8600 Series Segment, page 6-36

•

Test Commands for the FRSMs, page 6-36

•

Support for Alarm Reporting, page 6-37

•

Bit Error Rate Testing on an Unchannelized T3 or E3 FRSM, page 6-37

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Configuring the FRSM Cards, Lines, and Ports
This section describes how to configure card-level parameters—including Y-cable redundancy where
applicable, physical lines, and logical ports on the FRSM-series cards.
Step 1

If necessary, modify the resource partitioning for the whole card by executing the cnfcdrscprtn
command. You can view resource partitioning through dspcdrscprtn.
cnfcdrscprtn
number_PAR_conns is the number of connections in the range 0–1000 available to the PAR controller.
number_PNNI_conns is the number of connections in the range 0–1000 available to a PNNI controller.
number_TAG_conns is the number of connections in the range 0–1000 available to the Tag controller.
For example, you could reserve 300 connections for each controller on the FRSM with:
cnfcdrscprtn 300 300 300

Step 2

If the physical line is not yet active, use the addln command to activate it. The only argument addln
takes is the line number.

Step 3

If necessary, modify a line on the MGX-FRSM-2CT3, MGX-FRSM-HS2, MGX-FRSM-HS1/B,
AX-FRSM-8T1, or AX-FRSM-8E1 by using cnfln.
To change the line parameters on an MGX-FRSM-2CT3 or MGX-FRSM-2T3E3, use cnfds3ln. Note that
both cnfln and cnfds3ln apply to the MGX-FRSM-2CT3 but apply to different features. Refer to the
Cisco MGX 8800 Series Command Reference for the syntax of the line modification commands on all
cards except the MGX-FRSM-HS1/B.
The syntax for cnfln on the MGX-FRSM-HS1/B is:
cnfln
•

line_num has the range 1–4.

•

line_type is a number that specifies the mode and must match the 12IN1 cable connected to the port:
1=DTE. 2=DCE. 3=DTE_ST (V.35 only).

Note

If no cable is attached, the system lets you specify any line type, but the Alarm LED on the
front card turns from yellow to red.

•

line_rate is a number in the range 1–50. The number corresponds to the bits per second for the line.
(The range of line rates is 48 Kbps–52 Mbps.) See Table 6-1.

Table 6-2

Supported Lines Rates on the MGX-FRSM-HS1/B

1–50 Correspond to Line Rates in Kbps.
1=48000

2=56000

3=64000

4=112000

5=128000

6=168000

7=192000

8=224000

9=256000

10=280000

11=320000

12=336000

13=384000

14=392000

15=448000

16=512000

17=768000

18=1024000

19=1536000

20=1544000

21=1792000

22=1920000

23=1984000

24=2048000

25=3097000

26=3157000

27=4096000

28=4645000

29=4736000

30=6195000

31=6315000

32=7744000

33=7899000

34=8192000

35=9289000

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Table 6-2

Supported Lines Rates on the MGX-FRSM-HS1/B

1–50 Correspond to Line Rates in Kbps.
36=9472000

37=10240000

38=10890000

39=11059000

40=12390000

41=12629000

42=13897000

43=14222000

44=14336000

45=15488000

46=15799000

47=16384000

48=20025000

49=2498600

50=52000000

The possible errors for cnfln are:

Step 4

•

One or more parameters are invalid.

•

Line does not exist (has not been added).

•

Loopback or BERT is on.

•

An active port already exists on this line.

If the logical port does not exist or is not the appropriate type (Frame Relay, FUNI, or frame forwarding),
execute addport to create the appropriate type of port. If the logical port already exists and needs no
modification (cnfport), you can add connections by performing the tasks in “Adding a Frame Relay
Connection.” The parameters for addport depend on the type of FRSM.
For MGX-FRSM-2T3E3, or MGX-FRSM-HS2:
addport
•

port_num is the logical port number in the range 1–2. The mapping between a logical port and a line
is one-to-one for these cards. Note that the maximum committed information rate (CIR) on each line
for these cards is from 1 to 44210000 bps for MGX-FRSM-2T3, from 1 to 34010000 bps for
MGX-FRSM-2E3, and from 1 to 51840000 bps for MGX-FRSM-HS2. Specify CIR with addcon
(or addchan if necessary).

•

line_num is the physical line number in the range 1–2.

•

port_type is a number representing the mode of operation for the logical port: 1 for Frame Relay; 2
for FUNI mode-1a; or 3 for frame forwarding.

For an MGX-FRSM-2CT3:
addport

•

port_num is the logical port number in the range 1–256. When you subsequently add a connection
through the preferred command addcon or the addchan command (which requires NSAP format),
you must indicate a logical port by using this singular port_num regardless of the number of DS0s.
(You can add 1–24 DS0s to a single port_num through the other addport parameters.)

•

line_num is the DS1 number in the range 1–56 to which you assign the DS0 when both lines are
active. If you activate only one line, the range is 1–28. You can assign up to 24 contiguous DS0s to
one DS1. Each physical line supports up to 28 DS1s. The number of DS0s cannot span more than
DS1.

•

ds0_speed is a number representing the DS0 speed: 1 for 56 Kbps or 2 for 64 Kbps.

•

begin_slot is the beginning DS0 timeslot in 1 base. For example, on port number 50, you could
specify begin_slot to be 9 then specify num_slot to be in the range 1–16.

•

num_slot is the number of DS0s in the associated DS1. Note that the number of DS0s cannot be such
that the logical port spans more than DS1.

•

port_type is a number representing the mode of operation for the logical port: 1 for Frame Relay; 2
for FUNI mode-1a; and 3 for frame forwarding.

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For MGX-FRSM-HS1/B
cnfbctype is the command to change a 12-in1 back card type between support for x.21 and v.35.
addport
•

port_num is the port number in the range 1–4.

•

port_type is a number representing the type of frame interface technology for the logical port: 1 for
Frame Relay; 2 for FUNI mode-1a; or 3 for frame forwarding.

For AX-FRSM-8T1 and AX-FRSM-8E1:
addport

Step 5

•

port_num is the logical port number in the range of either 1–192 for T1 or 1–248 for E1. When you
subsequently add a connection through the preferred command addcon or the addchan command
(which requires NSAP format), you must indicate a logical port by using this singular port_num
regardless of the number of DS0s. (You can add 1–24 DS0s to a single line through the other
addport parameters.)

•

line_num is the physical line number in the range 1–8.

•

ds0_speed is a number representing the DS0 speed: 1 for 56 Kbps or 2 for 64 Kbps.

•

begin_slot is the beginning DS0 timeslot in 1 base. For example, on port number 50, you could
specify begin_slot to be 9, then specify num_slot to be in the range 1–16.

•

num_slot is the consecutive DS0s that each connection on port_num has.

•

port_type is a number representing the mode of operation for the logical port: 1 for Frame Relay; 2
for FUNI mode-1a; and 3 for frame forwarding.

Modify as needed the signaling on a port by executing cnfport.
cnfport
•

port_num is the logical port number with a range that depends on the type of FRSM:
– For the MGX-FRSM-2CT3, 1–56.
– For a channelized AX-FRSM-8T1, 1–192.
– For a channelized AX-FRSM-8E1, 1–248.
– For the unchannelized cards, the range equals the number of lines.

•

lmi_sig specifies the LMI signaling. 1=Other, 2=None, 3=StrataLMI, 4=AnnexAUNI,
5=AnnexDUNI, 6=AnnexANNI, 7=AnnexDNNI LMI signaling, N=none, S=StrataLMI, and
au=AnnexAUNI.

•

asyn enables asynchronous updates: (y)es or (n)o.

•

elmi enables Enhanced LMI: (N or n) disable (Y or y) enable.

•

T391 sets the T391 timer. The range is 5–30 seconds. It sets the interval in seconds for NNI status
polling. The default is 10.

•

T392 sets the T392 timer. The range is 5–30 seconds. It sets the interval in seconds for UNI status
polling. The default is 15.

•

N391 sets the N391 counter (the number of UNI/NNI polling cycles). The range is 1–255. The
default is 6.

•

N392 sets the N392 counter (the threshold for UNI/NNI errors). The range is 1–10. The default is 3.

•

N393 sets the N393 counter (the UNI/NNI threshold for monitored events). The range is 1–10 and
must be greater than the value of N392. The default is 4.

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Step 6

Configure resources for the port as needed by executing cnfportrscprtn. To see the partitioning, use
dspportrscprtn. The description has a high- and low-bandwidth version:
cnfportrscprtn
For serial FRSM cards:
•

port_num is the port number in the range 1–2 for MGX-FRSM-2T3E3 and MGX-FRSM-HS2, 1–4
for MGX-FRSM-HS1/B, or 1–256 for MGX-FRSM-2CT3.

•

controller is a number representing the controller: 1=PAR, 2=PNNI, and 3=Tag.

•

percent BW is the percentage of the bandwidth in the range 0–100 and applies to both egress and
ingress.

•

low DLCI is in the range 0–1023.

•

high DLCI is in the range 0–1023.

•

max LCN is the maximum number of logical connections available to the controller on this port. The
ranges are 1–4000 for MGX-FRSM-2CT3, and 1–2000 for MGX-FRSM-2T3E3 and
MGX-FRSM-HS2.

For AX-FRSM-8T1 or AX-FRSM-8E1:
•

port_num is the logical port number in the range 1–192 for T1 or 1–248 for E1.

•

controller-name is PAR, PNNI, or TAG.

•

percent BW is the percentage of the bandwidth in the range 0–100 and applies to both egress and
ingress.

•

low DLCI is in the range 0–1023.

•

high DLCI is in the range 0–1023.

•

max LCN is the maximum number of logical connections available to the controller on this port. The
range is 1–1000.

Note

The following step applies to Y-cable redundancy for the MGX-FRSM-2T3E3. For 1:N
redundancy on the eight-port FRSMs, refer to “Redundancy Support by the
MGX-SRM-3T3/C.”

Adding a Frame Relay Connection
This section describes how to add a Frame Relay connection according to the rules for adding a standard
connection or a management connection in the form of either a DAX con or a three-segment connection.
See “Rules for Adding Connections” earlier in this chapter.
Step 1

Add a connection by using addcon. If the application requires the NSAP form for the endpoint, use
addchan as described in the command reference.
The system automatically assigns the next available channel number, so the addcon command does not
require it. However, some related commands require a channel number. To see the channel number after
you add a connection, use dspcons.
On the FRSM-VHS cards (2CT3, 2T3E3, or HS2):

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addcon [CAC]
[connID]
•

port is the logical port number on the MGX-FRSM-2CT3 in the range 1–256. On the
MGX-FRSM-2T3E3 and MGX-FRSM-HS2, the range is 1–2. (See addport step if necessary.)

•

DLCI is the DLCI number in the range 0–1023 (2CT3/2T3/2E3/HS2).

•

cir is the committed information rate in one of the following ranges:
for 2CT3, 1–1536000 bps; for 2T3, 1–44210000 bps; 2E3, 1–34010000 bps; and
for HS2, 1–51840000 bps.

•

chan_type specifies the type of connection: 1=NIW; 2=SIW-transparent mode;
3=SIW with translation; 4=FUNI; and 5=frame forwarding.

•

egress_service_type is a number that specifies the type of queue on the egress:
1=high priority; 2=real-time VBR, 3=nonreal-time VBR; 4=ABR; and 5=UBR.

•

CAC optionally enables connection admission control: 1=enable; 2=disable (default). With CAC
enabled, the system adds the resource consumption represented by adding the connection to the total
resources consumed on a logical port.

•

controller_type is the controller type for signaling connections: 1 (the default) specifies a PVC and
applies to PAR; 2 specifies a SPVC and applies to PNNI.

•

mastership indicates if this end of the connection is master or slave: 1=master, 2=slave.

•

connID is the connection identifier at the remote end. It appears in the syntax as an optional
parameter because it is mandatory only when you add the connection at the master end. See “Rules
for Adding Connections” at the beginning of this chapter. connID can have one the following
formats according to the slave endpoint:
Nodename.SlotNo.PortNo.DLCI
Nodename.SlotNo.PortNo.ControllerId.DLCI
Nodename.SlotNo.PortNo.VPI.VCI for ATM endpoint

•

controllerID is a number indicating the type of network control application:
1=PAR, 2=PNNI, 3=MPLS.

For AX-FRSM-8T1 and AX-FRSM-8E1:
addcon [CAC]

•

port is the logical port number in the range 1–192 for T1 or 1–248 for E1. (See addport step if
necessary.)

•

DLCI is the DLCI number in the range 0–1023.

•

cir is the committed information rate in one of the following ranges:
for T1, 0–1536000 bps for T1; for E1, 0–2048000 bps.

•

chan_type specifies the type of connection: 1=NIW; 2=SIW-transparent mode;
3=SIW with translation; 4=FUNI; and 5=frame forwarding.

•

CAC optionally enables connection admission control: 1=enable; 2=disable (default).

•

controller_type is the controller type for signaling: 1=PVC (PAR), the default, 2=SPVC (PNNI).

•

mastership indicates if this end of the connection is master or slave: 1=master, 2=slave.

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•

remoteConnID is the connection identifier at the remote end and can have one the following formats
according to the type of card at the slave endpoint:
NodeName.SlotNo.PortNo.DLCI
NodeName.SlotNo.PortNo.ControllerId.DLCI

Note

ControllerId is a number indicating the type of network control application: 1=PAR,
2=PNNI, 3=TAG.

NodeName.SlotNo.PortNo.VPI.VCI for ATM endpoint
If the remote end is a PXM1, the port number can be in the range 1–32 for user connections or 34
for inband management connections (stand-alone node only).
•

serv_type is the Channel Service Type: 1=high priority, 2=rt-VBR, 3=nrtVBR, 4=fstABR, 5=uBR,
9=stdABR

The Channel Service Type is used to provide the default egress queue mapping and PXM1 Service Type
mapping:

Service Type

Default EgressQueue

PXM1 Service Type

HighPriority

Hi Priority

CBR

VBR-RT

Hi Priority

VBR-RT

VBR-NRT

Low Priority

VBR-NRT

ABR-FS

Low Priority

ABR-FST

STD-ABR

Low Priority

ABR-STD

UBR

Low Priority

UBR

For MGX-FRSM-HS1/B:
addcon

•

port_number is the logical port in the range 1–4.

•

DLCI is the DLCI in the range 0–1023.

•

CIR specifies the committed information rate. The range is 1–10000000 bps (although the V.35
version supports a maximum of 8 Mbps sustained).

•

chan_type is a number that identifies the channel type: 1=NIW; 2=transparent SIW; 3=SIW with
translation; 4=FUNI; 5=frame forwarding.

•

CAC enables connection admission control.

•

Controller_type identifies the network control application. The only valid type is the default of 1
(PAR).

•

mastership indicates the mastership status for this end of the connection: 1=master; 2=slave.

•

connID is the “remote” connection identifier from the slave end if you need to enter it at the master
end. See “Rules for Adding Connections” for an explanation. The possible formats are:
– NodeName.SlotNo.PortNo.DlCI
– NodeName.SlotNo.PortNo.ControllerId.DlCI for Frame Relay end point.

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– NodeName.SlotNo.PortNo.VPI.VCI for ATM end point.

Where ControllerId can be 1 (PAR), 2 (PNNI), or 3 (TAG)
Step 2

Modify a connection as needed by executing cnfcon. See the command line Help or the command
reference for the parameters for individual card types.

Step 3

If necessary, modify the CLP and congestion indicator fields by using cnfchanmap. Use dspchanmap
to check this configuration for a connection.
cnfchanmap
•

chan_num

is the channel (connection) number. The ranges are:
– 2CT3, 16–4015
– 2T3, 2E3, HS2, 16–2015
– HS1, 16–215
– T1, E1, 16–1015

•

chanType

is a number in the range 1–5 indicating the service type for
the connection.
– 1=NIW
– 2=SIW in transparent mode
– 3=SIW in translation mode
– 4=FUNI
– 5=frame forwarding

•

FECN/EFCI

is a number in the range 1–2 that specifies the mapping between
FECN and EFCI fields.
– 1=map EFCI (SIW only)
– 2=set EFCI to 0

•

DE to CLP

is a number in the range 1–3 that specifies the DE to CLP mapping.
– 1=map DE to CLP
– 2=set CLP to 0
– 3=set CLP to 1

•

CLP to DE

is a number in the range 1–4 that specifies the CLP to DE mapping.
– 1=map CLP to DE
– 2=set DE to 0
– 3=set DE to 1
– 4=ignore CLP (NIW only)

Step 4

To check statistics for a connection, use dspchstats as needed.

Step 5

Use cnfchanstdabr to configure the parameters for standard ABR (TM 4.0), if necessary:

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cnfchanstdabr

Please note the following:

Step 6

•

Standard ABR is a connection-level feature that requires the Rate Control Feature to be enabled on
the card.

•

Standard ABR does not support Explicit Rate (ER) marking of RM cells.

•

cnfconabrrates can be used to modify the rates:
Usage: cnfconabrrates

•

cnfconabrparams can be used to modify the parameters.
Usage: cnfconabrparams

Variable

Description

Value range

Default value

mcr

Minimum Rate Valid value range from 10 to 10,000 (includes
RM cell and Data cell bandwidth).

Derived from
CIR

pcr

Peak Rate

Valid value range from 10 to 10,000 (includes
RM cell and Data cell bandwidth).

Derived from
CIR

icr

Initial Cell
Rate

Valid value range from 10 to 10,000 (includes
RM cell and Data cell bandwidth).

Derived from
CIR

rif

Rate Increase
Factor

Valid value range from 1 to 32768 (power of 2). 64

rdf

Rate Decrease
Factor

Valid value range from 1 to 32768 (power of 2). 16

nrm

Inrate Cell
Count

Valid value range from 2 to 256 (power of 2).

trm

Time limit for
Frm

Valid value range from 3 to 255 msec.

255 msec

tbe

Transient Buf
Exposure

Valid value range from 0 to 16777215 cells.

16777215 cells

frtt

Fixed Round
Trip Time

Valid value range from 0 to 16700 msec.

0 msec

adtf

ACR Decrease
Time Factor

Valid value range from 10 to 10230 msec.

500msec

cdf

Cutoff
Decrease
Factor

Valid value range from 0 to 64 (power of 2).

Use cnfchanfst to configure the parameters for ForeSight ABR, if necessary.
cnfchanfst

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Configuring Frame Relay Service

For slot and port number, specify slot and port of the BXM connected to MGX 8230 node.

•

For VPI and VCI, specify the VPI and VCI at the endpoint on the PXM1.

•

For Nodename, use the name of the BPX 8600 series switch at the far end of the connection.

•

Specify the type of connection. Enter ATFST if the ForeSight feature is operating and ATFR if this
feature is not operating.

Specify the other addcon bandwidth parameters such as MCR, PCR, %Util, and so on.
•

Minimum Cell Rate (MCR) is only used with the ForeSight feature (ATFST connections).

•

MCR and Peak Cell Rated (PCR) should be specified according to the following formulae.

•

MCR=CIR *3/800 cells per second.

•

PCR=AR * 3/800 cells per second but less than or equal to 6000.
AR=Frame Relay port speed in bps. For example,
AR equals 64K, PCR=237, or
AR speed equals 256K, PCR=950, or
AR speed equals 1536K, PCR=5703

PCR=AR * 2/512 cells per
sec

For a frame size of 43 octects the PCR formula
becomes:

PCR=AR * 2/344 cells per
sec

% Util should be set to the same value as that used for the Frame Relay segments of the connection.

Test Commands for the FRSMs
To check the state of cards, lines, ports, queues, and connections, use the display commands (dsp...) and
addchanloop. The following commands are available for testing the FRSMs (see the Cisco MGX 8800
Series Command Reference for descriptions):
•

addlnloop, cnflnloop, and dellnloop are line-level, diagnostic commands that require the service
level user privilege.

•

addchanloop and delchanloop are standard user commands for looping on a channel.

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Configuring Frame Relay Service

•

tstcon checks the integrity of a connection.

•

tstdelay measures the round-trip delay on a connection.

•

cnftrafficgen enables/disables traffic-generation tests on a per LCN basis. Use the dsptrafficgen
command to display the traffic-generation test results.

Support for Alarm Reporting
The FRSM cards support card and line-level alarm reporting. Use the CiscoView application or the CLI
to view current alarms. The CLI commands are dspalmcnt, dspalm, and dspalms. These commands
require a switch, either “-x21 or “-hs1” whichever is valid, to identify the interface type. See the MGX
8800 Series Command Reference for syntax and alarm descriptions.

Bit Error Rate Testing on an Unchannelized T3 or E3 FRSM
The MGX 8230 shelf can perform a bit error rate test (BERT) on one active line at a time on the
MGX-FRSM-2T3E3. This type of testing disrupts service because it requires the tested path to be in
loopback mode. You can configure a BERT session and perform related tasks through the CiscoView
application or the CLI.
The MGX 8230 bus structure supports one BERT session per upper or lower bay of the card cage, so the
shelf can run a maximum of two sessions at once. When you specify the target slot through the
CiscoView application or the acqdsx3bert command on the CLI, the system determines if a BERT
configuration already exists in the bay that has the specified slot. If no BERT configuration exists in the
bay, the display presents a menu for the BERT parameters.
The CLI commands (whose functions correspond to CiscoView selections) are:
•

acqdsx3bert to determine if other BERT sessions exist in the bay

•

cnfdsx3bert to specify a pattern for the BERT test

•

startdsx3bert to start a BERT test (after resetting BERT counters)

•

moddsx3bert to inject multi-rate errors into the BERT bit stream

•

dspdsx3bert to display the parameters and results of the current test

•

deldsx3bert to end the current test (and retain the values in the BERT counters)

See the Cisco MGX 8230 Wide Area Edge Switch Command Reference for command details.

Note

When a BERT session begins, all the connections on the line go into alarm and return to normal when
you end the test. Consequently, the test may result in a large number of traps and other types of traffic
(such as AIS).

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Circuit Emulation Service Module for T3 and E3

Circuit Emulation Service Module for T3 and E3
The main function of the Circuit Emulation Service Module (CESM) is to provide a constant bit rate
(CBR) service. The CESM converts data streams into CBR AAL1 cells according to the CES-IS
specifications of the ATM Forum for unstructured transport across an ATM network. Unstructured
transport means the CESM does not interpret or modify framing bits, so a high-speed CESM creates a
single data pipe The most common application is legacy support for digitized voice from a PBX or video
from a codec. Using circuit emulation, a company can expand its data communication network without
specific voice or video cards to meet its voice or teleconferencing requirements.
The higher speed CESM uses a T3 or E3 line. The card set consists of an MGX-CESM-T3 or
MGX-CESM-E3 front card and either a BNC-2T3 or BNC-2E3 back card. In this CESM application,
only one line on the two-port back card is operational. Furthermore, it supports one logical port and one
logical connection (as a data pipe) on the line and runs at the full T3 or E3 rate. Although the typical
connection setup is the three-segment connection across an ATM network, the CESM can support a DAX
connection. Up to 26 CESM card sets can operate in an MGX 8230 shelf.

Features
The MGX-CESM-T3 or MGX-CESM-E3 provide the following:
•

Unstructured data transfer at 44.736 Mbps (1189980 cells per second) for T3 or 34.368 Mbps (91405
cells per second) for E3

•

Synchronous timing by either a local clock sourced on the PXM1 or loop timing (transmit clock
derived from receive clock on the line)

•

1:1 redundancy is through a Y-cable

•

Programmable egress buffer size (in the form of cell delay variation)

•

Programmable cell delay variation tolerance (CDVT)

•

Per VC queuing for the transmit and receive directions

•

An idle code suppression option

•

Bit count integrity when a lost AAL1 cell condition arises

•

Alarm state definitions per G.704

•

Trunk conditioning by way of framed AIS for T3 and unframed, alternating 1s and 0s for E3

•

On-board bit error rate testing (BERT)

Cell Delay Treatment
You can configure a tolerable variation in the cell arrival time (CDVT) for the receive buffer. After an
underrun, the receiver places the contents of the first cell to arrive in a receive buffer then plays it out at
least one CDVT value later. The maximum cell delay and CDVT (or jitter) are:
•

For T3
– Cell delay of 4 msec
– CDVT of 1.5 msec in increments of 125 microseconds

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•

For E3
– Cell delay of 2.9 msec
– CDVT of 2 msec in increments of 125 microseconds

Error and Alarm Response
When it detects a loss of signal (LOS) alarm, the CESM notifies the connected CPE in the upstream
direction after an integration period. The CESM continues to emit cells at the nominal rate but sets the
ATM cell payload with an appropriate data pattern as specified by the ATM Forum CES V2.0
specification. Also, an OAM cell with RDI code goes to the far end to indicate out-of-service. The
significance of the different types of alarms appears in Table 6-3.
Table 6-3

CESM Errors and Alarms

Alarm
Type

Down
stream

Link Failure
(RX)

Blue (LOS)

Receive RAI

Yellow

Error

Receive LOF
Receive AIS

Blue (AIS)

Up Stream

Comments

AIS—OAM
cells

none

Data cells According to ATM-Forum
CES-IS V 2.0

None

n/a

Not applicable

AIS (link)

FERF OAM
cells

AIS—done over the T3/E3 link by
sending the AIS data over the T3/E3 link

Configuring Service on a T3 or E3 CESM
This section first describes the steps for configuring the card, line, and port-level parameters for an
MGX-CESM-T3 and MGX-CESM-E3. It then describes how to add a connection. If necessary, refer to
the section titled “Sequence of Configuration Tasks, page 6-2” for background information on these
types of tasks. Use either the CLI or the CiscoView application to set up the card and line parameters.
Use either the CLI or the Cisco WAN Manager application to add connections. The fundamental tasks
and applicable CLI commands appear in the following list. For a complete list of CLI commands that
apply to the CESM cards, use the Help command on the CLI of the card or refer to the tables at the front
of the Cisco MGX 8000 Series Command Reference.
•

Optionally configure Y-cable redundancy at the card level (addred on the CLI).

•

Optionally modify resource partitioning at the card level (cnfcdrscprtn)

•

Activate a physical line (addln on the CLI) and optionally configure the line (cnfln) for line coding,
line length, and clock source

•

Activate the functioning of the logical port on a physical line (addport)

•

Optionally modify resource partitioning at the port level (cnfportrscprtn)

•

Add the connections by using addcon (or addchan if NSAP addressing is necessary)

•

Configure the connection for CDVT, cell loss integration period, and egress buffer size by using
cnfcon (or cnfchan if NSAP addressing is necessary)

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Configuring the Card, Lines, and Ports
This section describes how to configure parameters for the card, line, and port through the CLI. If you
use the CiscoView application, refer to CiscoView documentation. The command sequence is:
Step 1

addln
where line number is 1. You can modify line characteristics with cnfln.

Step 2

Optionally execute cnfln to modify line characteristics:
cnfln
•

line_num is 1

•

line_code is a number to specify line coding: 1 for B3ZS (T3); and 2 for HDB3 (E3)

•

line_len is a number that specifies the line length: 1 for up to 225 feet; 2 for more than 225 feet

•

clk_src is a number that specifies the clock source: 1 for local clock sourced on the PXM1; 2 for
looped clock

Step 3

Use dspln or dsplns to check the line. For dspln, the valid line number is 1.

Step 4

Create a logical port with addport:
addport

Step 5

•

port_num is the logical port number and is always 1

•

line_num is the number of the physical line and is always 1

Configure resources at the port level as needed by executing cnfportrscprtn:
cnfportrscprtn

Step 6

•

port_num is the logical port number and is always 1

•

controller_name is the name of the network control application. Enter one of the following strings:
PAR, PNNI, or MPLS

Optionally configure Y-cable redundancy if you have connected the lines of adjacent CESMs through a
Y-cable. The applicable commands are addred, dspred, and delred. These commands run on the PXM1
rather than the service module, so you must change to the PXM1 CLI to execute them:
addred
•

redPrimarySlotNum is the slot number of the primary card. The possible numbers are 1–6, 9–14,
17–22, and 25–30.

•

redSecondarySlotNum is the slot number of the primary card. The possible numbers are 1–6, 9–14,
17–22, and 25–30.

•

redType is the type of redundancy. Enter a 1 for 1:1 Y-cable redundancy.

Adding and Modifying Connections
Use either the Cisco WAN Manager application or the CLI to add or modify connections. If you use the
WAN Manager application, refer to the Cisco WAN Manager Operations Guide.
This section describes how to add a connection to a PXM1 in a stand-alone shelf according to the rules
for a standard connection or a management connection in the form of either a three-segment connection
or a DAX con. See “Rules for Adding Connections” earlier in this chapter. The preferred command is

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addcon. If the application requires NSAP addressing, use addchan to add the connection and cnfchan
if you need to modify it. Refer to the command reference for the syntax.
On the CESM CLI:
Step 1

Add a connection by executing addcon. (Alternatively, you can use addchan if your application requires
the NSAP format of end-point specification.) Execute addcon at both ends of the connection—unless
the remote end-point is on port 34 of a PXM1 (see the note at the end of this step).
The syntax for addcon is:
addcon [mastership [remoteConnId] ]
•

port_num is the logical port number and is always 1.

•

mastership indicates whether this end-point is the master or slave 1=master; 2=slave (default).

•

remoteConnId is the identification for the connection at the slave end. The format is
switchname.slot_number.port_number.vpi.vci. For the MGX-CESM-T3 and MGX-CESM-E3, the
VPI and VCI are typically 0 or 1.

Note

Step 2

For the channel number, the system always returns the number 32 for the high-speed CESM.
If you execute dspchan, use channel number 32 to see details about the channel (or
dspchans—and no arguments—to see high-level details about the channel). In contrast, the
dspcon command takes the port number 1 to identify the connection even though it shows
the same information as dspchan.

Optionally, you can use cnfcon to modify the connection.
cnfcon

Step 3

•

port_num is the port number and is always 1.

•

CDVT is a tolerable variation for the arrival time of cells. For T3, the range is 125–1447
microseconds in 125-microsecond increments. For E3, the range is 125–1884 microseconds in
125-microsecond increments.

•

CellLossIntegrPeriod is the amount of time a connection can be in an error condition before an alarm
is declared. The range is 1000–65535 milliseconds.

•

bufsize is the egress buffer size in bytes. You can let the CESM compute the size by entering 0 for
bufsize or enter the number of bytes up to a maximum of 16224.

Optionally, you can use cnfswparms on a BPX 8600 series switch to configure connection parameters
for the network segment of a three-segment connection. For a stand-alone application, use whatever
means are supported by the backbone switches.
cnfswparms (=cos)

•

chan_number is the channel (connection) number and is always 32.

•

mastership specifies the current end-point as master or slave: 1=master; 2=slave (default).

•

vpcflag indicates whether the connection is a VPC or a VCC: 1=VPC; and 2=VCC.

•

conn_service_type selects the type of service for the connection: 1=cbr; 2=vbr; 3 is not used; 4=ubr;
5=atfr; 6=abrstd; and 7=abrfst.

•

route_priority is the priority of the connection for rerouting. The range is 1–15 and is meaningful
only in relation to the priority of other connections.

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•

max_cost is a number establishing the maximum cost of the connection route. The range is 1–255
and is meaningful only in relation to the cost of other connections.

•

restrict_trunk_type is a number that specifies the type of trunk this connection can traverse. The
numbers are 1 for no restriction, 2 for terrestrial trunk only, and 3 for satellite trunk only.

•

pcr is the peak cell rate in cells per second (cps). For T3, the maximum is 118980 cps. For E3, the
maximum is 91405 cps.

•

mcr is the minimum cell rate. The range is 1–65535 cells per second.

•

pct_util is the percent utilization in the range 1–100.

Bit Error Rate Testing on a T3 or E3 CESM
An active MGX-CESM-T3 or MGX-CESM-E3 can perform a bit error rate test (BERT). Each of these
cards contains its own BERT controller, so BERT sessions can run on any number of these cards in the
system. However, only one user at a time can run BERT on a card. BERT disrupts service because it
requires the tested path to be in loopback mode.
The CLI commands (whose functions correspond to CiscoView selections) appear in the following list.
The correct order of task execution is crucial for obtaining valid results. With the exception of
dspdsx3bert, you must execute the commands in the order they appear in the following list. You can
execute dspdsx3bert before, during, or after a session. Because the order of execution is crucial, read
the command descriptions whether you use the CiscoView application or the CLI.
1.

acqdsx3bert determines if another user currently is running a BERT session on the card.

startdsx3bert starts a BERT test (after resetting BERT counters).

cnfdsx3bert specifies a pattern for the BERT test.

moddsx3bert injects multi-rate errors into the BERT bit stream.

deldsx3bert ends the current test (and retains the values in the BERT counters). This command also
resets the status of current users that acqdsx3bert detects.

dspdsx3bert displays the parameters and results of the current test. You can execute this command
at any time.

See the Cisco MGX 8000 Series Command Reference for command details.

Note

Eight-Port Circuit Emulation Service Modules
The main function of the Circuit Emulation Service Module (CESM) is to provide a constant bit rate
(CBR) circuit emulation service by converting data streams into CBR AAL1 cells for transport across
an ATM network. The CESM supports the CES-IS specifications of the ATM Forum.

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The 8-port CESM lets you configure individual physical ports for structured or unstructured data
transfer. The card sets consist of an AX-CESM-8T1 or AX-CESM-8E1 front card and one of the
following back cards:
•

RJ48-8T1

•

R-RJ48-8T1 for supporting 1:N redundancy through the optional MGX-SRM-3T3/C

•

RJ48-8E1

•

R-RJ48-8E1 for supporting 1:N redundancy through the optional MGX-SRM-3T3/C

•

SMB-8E1

Structured Data Transfer
If you configure an individual port for structured data transfer, the 8-port CESM supports:
•

Synchronous timing.

•

Superframe or Extended Superframe for T1.

•

N x 64 Kbps, fractional DS1/E1 service (contiguous time slots only). You can map an
N x 64 Kbps channel to any VC.

•

CAS robbed bit for T1 (ABCD for ESF and SF frames) and CAS for E1 (channel 16).

•

CCS channel as a transparent data channel.

•

A choice of partial-fill payload sizes.

•

Idle detection and suppression for 64Kbps CAS connections.

•

Loopback diagnostics on a line or a connection (addlnloop, tstcon, and tstdelay commands).

•

Bit error rate test (BERT) functionality with loopback pattern generation and verification on
individual lines or logical port. For a description of the BERT functions, see the section titled “Bit
Error Rate Testing Through an MGX-SRM-3T3.”

Unstructured Data Transfer
If you configure an individual port for unstructured data transfer, the 8-port CESM supports:
•

Synchronous or asynchronous timing at T1 (1.544 Mbps) or E1 (2.048 Mbps) rates. For
asynchronous timing, you can select its basis as either SRTS and adaptive clock recovery.

•

The special port type framingOnVcDisconnect. This port type prevents a remote-end CPE from
going to LOF by placing a line in remote loopback mode when the CESM determines that a
connection deletion or suspension occurred at the network-side ATM interface.

•

Ability to detect and display a yellow alarm for the ESF framing on a T1 line.

•

Loopback diagnostics on a line or a connection (addlnloop, tstcon, and tstdelay commands).

•

Bit error rate test (BERT) functionality with loopback pattern generation and verification on
individual lines. For a description of BERT functions, see the section “Bit Error Rate Testing
Through an MGX-SRM-3T3.”

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Cell Delay Treatment
For each connection, you can configure a tolerable variation in the cell arrival time (CDVT) according
to the expected reliability of the route. The CDVT applies to the receive buffer. After an underrun, the
receiver places the contents of the first cell to arrive in a receive buffer then plays it out at least one
CDVT value later. For each VC, the maximum cell delay and CDVT (or jitter) are:
•

For T1
– Cell delay of 48 msec
– CDVT of 24 msec in increments of 125 microseconds

•

For E1
– Cell delay of 64 msec
– CDVT of 32 msec in increments of 125 microseconds

Redundancy Support for the Eight-Port CESM
The AX-CESM-8T1 and AX-CESM-8E1 can have 1:N redundancy support but with some variations
between the T1 and E1 modes of operation. The type of redundancy and the type of back card are
interdependent. See “Service Resource Module” for more details. In general:
•

With an RJ48-8T1, an MGX-SRM-3T3 can provide 1:N redundancy through the distribution bus or
the redundancy bus.

•

With an RJ48-8E1, an MGX-SRM-3T3 can provide 1:N redundancy through the redundancy bus.

Back card requirements for the MGX-SRM-3T3 and service modules vary, as follows:
•

If you are using the MGX-SRM-3T3 for bulk distribution of T1 channels, the CESMs do not use
back cards, but each MGX-SRM-3T3/C must have an MGX-BNC-3T3-M back card. (Bulk
distribution is not available for E1 operation.)

•

If the MGX-SRM-3T3/C supports T1 or E1 1:N redundancy through the redundancy bus (no bulk
distribution), the MGX-SRM-3T3/C does not require a back card, but the N CESM primary cards
must have one redundant version of the back card.

Error and Alarm Response
When it detects a loss of signal (LOS) alarm, the CESM notifies the connected CPE in the upstream
direction after an integration period. The CESM continues to emit cells but sets the ATM cell payload
with an appropriate data pattern as specified by the ATM Forum CES V2.0 specification. Also, an OAM
cell with RDI code goes to the far end to indicate out of service. See Table 6-4.
Table 6-4

CESM Errors and Alarms

Alarm
Type

Down
stream

Link Failure
(RX)

Blue (LOS)

Receive RAI

Yellow

Error

Up Stream

Comments

AIS—OAM
cells

none

Data cells According to ATM-Forum
CES-IS V 2.0

None

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Table 6-4

CESM Errors and Alarms (continued)

Error

Alarm
Type

Receive LOF
Receive AIS

Blue (AIS)

Down
stream

Up Stream

n/a

AIS (link)

FERF OAM
cells

Comments
AIS over the T1 link or alternating 1s
and 0s E1 link.

Configuring Service on an Eight-Port CESM
This section describes the steps for setting up a CESM and adding connections. The maximum number
of connections is 248 on the MGX-CESM/B-8E1 and 192 on the MGX-CESM/B-T1. Use either the CLI
or the Cisco WAN Manager application to set up a CESM and add connections. The following list shows
the fundamental tasks and applicable CLI commands:
•

Optionally configure redundancy at the card level (addred and possibly addlink on the PXM1)

•

Optionally modify resource partitions at the card level (cnfcdrscprtn)

•

Activate a physical line (addln) and optionally configure the line (cnfln)

•

Create logical ports for structured data transport on a physical line (addport)

•

Optionally modify resource partitions at the port level (cnfportrscprtn)

•

Add connections by using addcon (or addchan if NSAP addressing is necessary)

For CESM-related commands, see the list of service module commands at the beginning of the Cisco
MGX 8000 Series Command Reference. Also, each command description in the command reference lists
related commands. For example, it shows display commands that relate to addition commands.

Configuring the Card, Lines, and Ports
This section describes how to configure parameters for the card, lines, and ports through the CLI. If you
use the CiscoView application, refer to the CiscoView documentation. On the CLI, the command
sequence is:
Step 1

addln
where line number is in the range 1–8. You can modify line characteristics with cnfln.

Step 2

Optionally execute cnfln to modify line characteristics from the defaults. (Use dspln or dsplns to
check). The syntax for cnfln is:
cnfln [E1-signalling]
•

line_num is a line number in the range 1–8

•

line_code is a number that specifies the line coding: 2=B8ZS (T1); 3=HDB3 (E1); and
4=AMI (T1/E1)

•

line_len is the line length: 10-15 for T1; 8 for E1 with SMB line module; 9 for E1 with RJ-48 line
module

•

clk_src is a number specifying the clock source: 1 for loop clock; 2 for local clock

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•

E1-signalling specifies the E1 signalling. The possible entries are
– CAS, which specifies CAS and no CRC
– CAS_CRC, which specifies CAS with CRC
– CCS, which specifies CCS and no CRC
– CCS_CRC, which specifies CCS with CRC
– CLEAR: CLEAR channel

Step 3

Create a logical port with addport if the application requires N x 64Kbps channels:
addport

Step 4

•

port_num is the logical port number in the range 1–192 for T1 or 1–248 for E1

•

line_num is the number of the physical line in the range 1–8

•

begin_slot is the beginning timeslot number in the frame: for T1, 1–24; For E1 2–32 with CCS
signalling or 2–16 and 17–32 with CAS signalling

•

num_slot is the number of timeslots in the frame for the current port (port_num)

•

port_type is: 1=structured 2=unstructured; 3=framing on VC disconnect

Configure resources at the port level as needed by executing cnfportrscprtn:
cnfportrscprtn
•

port_num is the logical port number in the range 1–192 for T1 or 1–248 for E1.

•

controller_name is the name of the network control application. Enter one of the following strings:
PAR, PNNI, or MPLS.

Configuring Bulk Distribution and Redundancy
You can configure either bulk distribution alone, redundancy alone, or both of these features according
to the restrictions in “Redundancy Support for the Eight-Port CESM.” On the CLI of the PXM1, execute
addlink for bulk distribution (T1 only) before you execute addred for redundancy. To configure bulk
distribution:
Execute addlink to create the links:
addlink
•

T3 line number

is the MGX-SRM-3T3/C line number in the format slot.line. The
slot can be 15 or 31. The range for port is 1–3

•

T1 line number

is the starting T1 line number within the T3 line. The range for the
T1 line number is 1–28.

•

Target Slot number

is slot number for the T1 service module.

•

Slot line number

is T1 line number in the range 1–8.

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Execute addred:
addred
•

redPrimarySlotNum

is the primary slot. For the redundancy bus (no bulk distribution),
valid slot numbers are 1–6, 9–14, 17–22, and 25–30. With bulk
distribution of T1 channels, do not specify 9, 10, 26, or 26.

•

redSecondarySlotNum is the secondary slot. For the redundancy bus (no bulk distribution),
valid slot numbers are 1–6, 9–14, 17–22, and 25–30. With bulk
distribution of T1 channels, do not specify 9, 10, 26, or 26.

•

RedType

is the type of redundancy. A 1 specifies 1:1 for E1 with SMB
connectors. A 2 specifies 1:N for T1 or E1.

Add a connection through the preferred command addcon. (Alternatively, you can use addchan if your
application requires the NSAP format of end-point specification.)
Execute addcon at both ends of the connection—unless the remote end-point is on port 34 of a PXM1
(see the note at the end of this step). The maximum number of connections for the AX-CESM-8T1 is
248 and 192 for the AX-CESM-8E1. Note that because you can add only one connection per port,
addcon does not request a connection number.
The system automatically assigns the next available channel number, so the addcon command does not
require it. However, some related commands require a channel number. To see the channel number after
you add a connection, use dspcons.
The syntax for addcon is:
addcon [controller_type]
[mastership] [remoteConnId]
•

port_num is the logical port number. This port must already exist (see addport).

•

sig_type is a number indicating the type of signalling: 1 specifies basic signalling,
2 specifies E1 CAS, 3 specifies ds1SFCAS (DS1 Superframe CAS), and 4 specifies ds1ESFCAS
(DS1 Extended Superframe CAS).

•

partial_fill is a number representing the number of bytes in a cell. It can be either 0 to specify that
the cell must contain 48 bytes or a non-0 value that fixes the number of bytes in each cell. For
structured E1, the partial_fill range is 20–47 bytes. For structured T1, the range is 25–47 bytes.
Unstructured T1 or E1 can be 33–47 bytes.

•

cond_data is the conditioning data in case of loss of signal (LOS). It is always 255 for unstructured
data transfer or 0–255 for structured data transfer. For a voice connection, the larger the cond_data
value, the louder the hiss heard in case of LOS.

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Step 2

•

cond_signalling is the string of condition signaling bits that you specify with a decimal number in
the range 0–15, where, for example, 15=1111, and 0=0000. These bits represent the ABCD
signalling to the line or network when an underflow occurs.

•

mastership indicates whether this end-point is the master or slave; 1=master; 2=slave (default).

•

remoteConnId is the identification for the connection at the slave end. The format is
switchname.slot_number.port_number.vpi.vci.

Optionally, you can use cnfcon to modify an individual connection. This command requires a channel
number. If you add a connection by using addcon, you do not need to specify a channel number because
the system automatically uses the next available number. To obtain the channel number for cnfcon,
execute dspcons.
cnfcon

Step 3

•

port_num is the port number.

•

CDVT is a tolerable variation for the arrival time of cells. For T1, the range is 125–24000
microseconds. For E1, the range is 125–26000 microseconds. Both require 125-microsecond
increments.

•

CLIP is CellLossIntegrationPeriod, an amount of time a connection can be in an error condition
before an alarm is declared. The range is 1000-65535 milliseconds.

•

bufsize is the egress buffer size in bytes. These buffers are used for tolerating variations in the cell
delay. The size can be automatically computed, or you can enter a specific size in bytes.

•

cbrclkmode is the clock mode for a circuit emulation connection. The values are 1–3:1 is
synchronous; 2 is SRT. 3 is adaptive; SRT and adaptive are asynchronous clocking schemes.

•

isenable is a flag to enable the idle code (ABCD signalling bits)–based cell suppression feature on
a connection. If you enable this feature, idle suppression logic is activated so that suppression begins
when valid idle ABCD bits are detected. This feature is valid for only single DS0 connections.
Possible values are 1 to enable and 2 to disable.

•

exttrigis is an enable for an external idle suppression trigger. With this feature enabled, the logic
forcefully suppresses cells on a single DS0 connection. Enter a 1 to disable idle suppression or a 2
to enable idle suppression.

Optionally, you can configure connection parameters for the network segment of a three-segment
connection:
cnfswparms (=cos)

•

chan_number is the connection in the range 32–279.

•

mastership specifies the current end-point as master or slave; 1=master; 2=slave (default.

•

vpcflag indicates whether the connection is a VPC or a VCC: 1=VPC; and 2=VCC.

•

conn_service_type selects the type of service for the connection: 1=cbr; 2=vbr; 3 is not used; 4=ubr;
5=atfr; 6=abrstd; and 7=abrfst.

•

route_priority is the priority of the connection for rerouting. The range is 1–15 and is meaningful
only in relation to the priority of other connections.

•

max_cost is a number establishing the maximum cost of the connection route. The range is 1–255
and is meaningful only in relation to the cost of other connections.

•

restrict_trunk_type is a number that specifies the type of trunk this connection can traverse. The
numbers are 1 for no restriction, 2 for terrestrial trunk only, and 3 for satellite trunk only.

•

pcr is the peak cell rate.

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•

mcr is the minimum cell rate. The range is 1–65535 cells per second.

•

pct_util is the percent utilization in the range 1–100.

Service Resource Module
This section describes how to use the features of the T3 version of the Service Resource Module
(MGX-SRM-3T3/C). This multipurpose card can provide:
•

Demultiplexing of T3 service called bulk distribution.

•

1:N redundancy support for service modules with T1 or E1 lines.

•

Bit error rate testing (BERT) for T3, E3, T1, E1, fractional T1, or subrate operation with loopback
pattern generation and verification on individual lines or logical port. For a description of the BERT
functions, see the section titled “Bit Error Rate Testing Through an MGX-SRM-3T3.”

One SRM acts as the active SRM while the other is in standby:
•

The SRM in slot 7 is always controlled by the PXM in slot 1

•

The SRM in slot 14 is always controlled by the PXM in slot 2.

•

The SRM is active or standby according to the state of the corresponding PXM.

Configuring Card and Line Parameters
You can configure card- and line-level parameters for an SRM through the CiscoView application or the
CLI on the PXM1 (not the SRM itself). For descriptions of the commands, see the Cisco MGX 8230 Wide
Area Edge Switch Command Reference. The CLI commands that apply to the SRM are:
•

addln

•

delln

•

cnfln

•

dspln

•

dsplns

•

addlmiloop

•

dellmiloop

•

cnfsrmclksrc

•

dspsrmclksrc

•

dspalm

•

dspalms

•

dspalmcnt

•

clralmcnt

•

clralm

•

dspalmcnt

•

addlink

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•

dsplink

•

dellink

•

addred

•

dspred

•

delred

Bulk Distribution for T1 Service
The MGX-SRM-3T3/C supports a demultiplexing function called bulk distribution. With bulk
distribution, the MGX-SRM-3T3/C converts traffic from its T3 lines to T1 channels and sends the data
streams across the distribution bus to the appropriate service modules. The benefit of this feature is that
the number of T1 cables and back cards is greatly reduced. Applicable service modules are the
MGX-AUSM/B-8T1, AX-FRSM-8T1, and AX-CESM-8T1.
At its MGX-BNC-3T3-M back card, the MGX-SRM-3T3/C connects to an external multiplexer. The
multiplexer connects to the T1 lines from user-equipment and places the data streams on T3 lines to the
MGX-SRM-3T3/C. Each T3 line can contain 28 T1 channels. An individual MGX-SRM-3T3/C can
support 8 card slots, so the maximum number of T1 channels it can process is 64.
Linking the MGX-SRM-3T3/C to a destination card causes the shelf to take CPE traffic through the
MGX-SRM-3T3/C rather than the T1 card’s line module. Linkage is a card-level condition. If you link
just one T1 channel on a service module to the MGX-SRM-3T3/C, the back card on the service module
becomes inoperative, so you must link all other T1 ports on that service module to the MGX-SRM-3T3/C
if you want them to operate. Linking T1 ports into a group does not form an N X T1 channel. Each T1
channel remains a distinct T1 channel. Furthermore, a group belongs to one slot, so it cannot include T1
channels belonging to another card.
For a description of how the MGX-SRM-3T3/C supports redundancy for linked channels, see the section
“Redundancy Support by the MGX-SRM-3T3/C” in this chapter.
Before configuring bulk distribution on an SRM, perform the following tasks:
1.

Activate the lines (addln on the CLI).

Optionally configure the lines (cnfln on the CLI).

Display the state of the lines (dspln and dsplns on the CLI).

To link T1 ports on a service module to a T3 line on an MGX-SRM-3T3/C:
•

Execute addlink on the active PXM1. Related commands are dsplink and dellink.
addlink

•

T3LineNum

Line number in the format slot.line.
Slot = 7 or 14
Line range = 1–3

•

T1Slot

T1 slot number, in the range 1–28.

•

NumberOfT1s

Number of T1s, in the range 1–8.

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•

TargetSlotNum

T1 service module slot number to be linked to the T1 line, in
the ranges: 3–6 and 10–13.

•

TargetSlotLineNum T1 line number in the slot to be linked, in the range 1–8.

Redundancy Support by the MGX-SRM-3T3/C
The MGX-SRM-3T3/C can provide redundancy to service modules with T1 or E1 lines. For E1 or T1
modules, it can provide redundancy through the redundancy bus. For T1 modules only, it can provide
redundancy through the distribution bus. The redundancy and distribution buses impose different
requirements, but the common requirement is that all primary and secondary cards supported by a
particular MGX-SRM-3T3/C must reside on the same level of the card cage as that SRM.
The need for back cards and the choice of bus for redundancy support depends on whether the
MGX-SRM-3T3/C must provide bulk distribution:
•

With bulk distribution, the T1 service modules do not use back cards. The MGX-SRM-3T3/C uses
the distribution bus to support redundancy.

•

Without bulk distribution, the supported service modules must have back cards. The redundant card
set requires a special redundancy back card (the R-RJ48-8T1 or R-RJ48-8E). The primary card sets
use standard back cards (RJ48-8T1 or RJ48-8E1).

With redundancy provided by the SRM, no Y-cables are necessary because the MGX-SRM-3T3/C itself
passes the traffic to the redundant front card if a failure necessitates switchover. Conversely, any card
with 1:1 redundancy supported by Y-cabling does not require an SRM. For example, the FRSM-VHS
cards have 1:1 redundancy through a Y-cable. The MGX-SRM-3T3/C redundancy feature is particularly
important for cards that do not have Y-cable redundancy—the T1 and E1 service modules.

Configuring Redundancy Through the Redundancy Bus
For redundancy that utilizes the redundancy bus, the characteristics are:
•

Both the primary and the redundant front cards must have back cards. The secondary back card must
be the version specifically designed to be redundant cards. Examples are the R-RJ48-8T1 and
R-RJ48-8E1, where the first “R” means redundant.

•

An MGX-SRM-3T3/C can redirect traffic for only one failed card at a time regardless of the number
of redundant groups you have configured to rely on that MGX-SRM-3T3/C for redundancy.

To configure redundancy through the redundancy bus:
Step 1

Execute addred on the active PXM1:
addred
where:
•

redPrimarySlotNum Slot number that contains the primary card of the card
pair, in the ranges 4–6 or 11–13.

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Step 2

•

redSecondarySlotNum Slot number that contains the secondary card of the card
pair, in the ranges 4–6 or 11–13.

•

RedType

is a number that specifies the type of redundancy.
•

Enter a 1 to specify 1:1 redundancy.

•

Enter a 2 to specify 1:N redundancy. Only an SRM
can support 1:N redundancy.

Check the redundancy status for all cards by using dspred.
To remove redundancy, use delred.

Configuring Redundancy Through the Distribution Bus
Redundancy by way of the distribution bus applies to T1 channels you linked for bulk distribution. For
a redundancy configuration on the MGX-SRM-3T3/C that utilizes the distribution bus:
•

No back cards are necessary.

•

The MGX-SRM-3T3/C can support multiple switchovers for different 1: N redundancy groups.

•

Slots 9, 10, 15, or 26 are not supported.

Before you specify redundancy with bulk distribution, linkage must exist between a T3 line on the
MGX-SRM-3T3/C and a primary service module with the T1 lines. No linkage should exist on the
secondary service module. To configure redundancy through the CLI:
Step 1

Execute addred on the active PXM1:
addred
where:

Step 2

•

redPrimarySlotNum is slot number of the slot containing the primary card.
Permissible slot numbers are in the range 1–6, 11–14,
17–22, and 27–30.

•

redSecondarySlotNum is slot number of the slot containing the secondary card
of the card pair. Permissible slot numbers are in the
range 1–6, 11–14, 17–22, and 27–30.

•

RedType

is a number that specifies the type of redundancy. Enter
a 1 to specify 1:1 redundancy. Enter a 2 to specify 1:N
redundancy. Only an SRM can support 1:N redundancy.

Check the redundancy status for all cards by using dspred.
To remove redundancy, use delred.

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Bit Error Rate Testing Through an MGX-SRM-3T3
The MGX 8230 shelf can perform a bit error rate test (BERT) on an active line or port. This type of
testing disrupts service because a BERT session requires the tested path to be in loopback mode. In
addition, the pattern test replaces user-data in the path with the test pattern. The applicable line types
and variations for a DS1 are:
•

A T1 or E1 line

•

Fractional portions of a T1 line that add up to a DS1

•

A single 56 Kbps or 64 Kbps DS0

•

A DS0 bundle consisting of N x 64 Kbps DS0s

With a set of MGX-SRM-3T3/C cards in the system, you can initiate a BERT session on an
MGX-FRSM-2CT3 or any eight-port service module. (In contrast, the MGX-FRSM-2T3E3,
MGX-CESM-T3, and MGX-CESM-E3 do not use the MGX-SRM-3T3/C for BERT. See the sections for
these service modules in this chapter for applicable BERT.)
The MGX 8230 bus structure supports one BERT session per upper or lower bay, so the shelf can run a
maximum of two sessions at once. When you specify the target slot through the CiscoView application
or the CLI, the system determines if a BERT configuration already exists in that bay. After the system
determines that no BERT configuration exists in the applicable bay, the display presents a menu for the
BERT parameters.
The CLI commands (whose functions correspond to CiscoView selections) are:

Note

•

cnfbert to configure and start a test

•

modbert to inject errors into the BERT bit stream

•

dspbert to display the parameters and results of the current test

•

delbert to end the current test

When a BERT session begins, all connections on a line or port go into alarm and return to normal
when the test ends. Consequently, the test may result in other types of traffic (such as AIS).
During configuration, the parameter display or menu items depend first on the card type and whether the
test medium is a physical line or a logical port. Subsequent choices are test type, test patterns, loopback
type, and so on. See the Cisco MGX 8230 Wide Area Edge Switch Command Reference for details on
cnfbert and the other BERT commands. The concatenation of menu to menu is extensive, so this section
contains tables of menu selections based on the card types and the test type.
The test type can be pattern, loopback, or DDS seek. The choice of test type leads to further menu
displays. Following the tables of menu choices, the remaining sections define the parameters in these
menu choices.
•

For AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3, see Table 6-5 pattern tests and
Table 6-6 for loopback tests.

•

For AX-FRSM-8E1 and AX-CESM-8E1, see Table 6-7 for pattern tests and Table 6-8 for loopback
tests.

•

For MGX-AUSM-8T1, see Table 6-9 for pattern tests and Table 6-10 for loopback tests.

•

For MGX-AUSM-8E1, see Table 6-11 for pattern and Table 6-12 loopback tests.

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Table 6-5

Pattern Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3

Test Medium

Port

Line

Table 6-6

Medium Type

Device to Loop

BERT Pattern

Port with N timeslots (can also
submit to the DDS seek test)

v54

all patterns

Port with one 64 Kbps timeslot (can latch or v54
also submit to the DDS seek test)

all patterns

Port with one 56 Kbps timeslot (can noLatch
also submit to the DDS seek test)
latch or v54

2 9 or 2 11
all patterns

n/a

all patterns

in-band/ESF or
metallic

Loopback Test for AX-FRSM-8T1, AX-CESM-8T1, and MGX-FRSM-2CT3

Test Medium

Port

Medium Type

Loopback

Port with N timeslots (can also
submit to the DDS seek test)

far end or remote

Port with one 64 Kbps timeslot far end or remote
(can also submit to the DDS seek
test)
Port with one 56 Kbps timeslot far end or remote
(can also submit to the DDS seek
test)
Line

Table 6-7

n/a

metallic, far end, or
remote

Pattern Test for AX-FRSM-8E1 and AX-CESM-8E1

Test Medium

Medium Type

Device to Loop

BERT Pattern

Port

any

none

all patterns

Line

n/a

metallic

all patterns

Table 6-8

Loopback Test for AX-FRSM-8E1 and AX-CESM-8E1

Test Medium

Medium Type

Loopback

Port

any

remote loopback

Line

n/a

metallic or remote

Table 6-9

Pattern Test for MGX-AUSM-8T1

Test Medium

Medium Type

Device to Loop

BERT Pattern

Line

n/a

in-band/ESF

all patterns

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Table 6-10 Loopback Test for MGX-AUSM-8T1

Test Medium

Medium Type

Loopback

Line

n/a

far end, remote, or
metallic

Table 6-11 Pattern Test for MGX-AUSM-8E1

Test Medium

Medium Type

Device to Loop

BERT Pattern

Line

n/a

none

all patterns

Table 6-12 Loopback Test for MGX-AUSM-8E1

Test Medium

Medium Type

Loopback

Line

n/a

remote or metallic

Pattern Test Options
The pattern test options consist of the device to loop and the pattern. This section lists the device options
and patterns that appear in the menus. Refer to the preceding tables as needed. The device to loop options
identify the type of device that participates in the test:
•

noLatch is a device that does not latch the data. It can be:
– Nonlatching office channel unit (OCU) that consists of one device
– Nonlatching OCU that consists of a chain of devices
– Nonlatching channel service unit (CSU)
– Nonlatching data service unit (DSU)

•

Latch is a device that can latch the data and can be:
– Latching DS0-DP drop device
– Latching DS0-DP line device
– Latching office channel unit (OCU)
– Latching channel service unit (CSU)
– Latching data service unit (DSU)
– Latching HL96 device

•

in-band/ESF

•

v54 is a polynomial loopback

•

metallic is a local loopback within the service module and does not involve an external device

The available patterns are:
1.

All 0s

All 1s

Alternating 1-0 pattern

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Double 1-0 pattern

2 15-1 pattern

2 20-1 pattern

2 20-1 QRSS pattern

2 23-1 pattern

1 in 8 pattern

10. 3 in 24 pattern
11. DDS-1 pattern
12. DDS-2 pattern
13. DDS-3 pattern
14. DDS-4 pattern
15. DDS-5 pattern
16. 2 9 pattern
17. 2 11 pattern

Loopback Test Options
The loopback tests do not monitor the integrity of the data but rather the integrity of the path. The type
of loopback indicates the direction of test data transmission. The choices are:
•

far end means the service module transmits data to the CPE and receives the data back

•

remote means the service module receives data from the CPE and loops back to the CPE

•

metallic means the service module receives data from the network and loops it back to the network

Online Diagnostics test
The Online Diagnostics are used to test components on the PXM1 and SRM modules of the MGX 8230
while the shelf is running. Connections, states, and tasks are not affected by the tests.
The diagnostic test is invoked from the active PXM1. If a standby PXM1 exists and is in standby state,
it will also be tested. When the test is run, each component is checked and the results are presented on
the screen. Results are also saved to a log file.

Automatic Switchover
The Online Diagnostic command (oldiags) includes an option to automatically switch operations from
the active PXM1 to the standby PXM1 if a major problem is detected. This behavior is possible only
when a standby PXM1 is installed and no errors are detected on that standby PXM1 during the test.

Alarms
If a failure is detected and an automatic switchover is not performed, a major alarm is set. This alarm is
displayed in the card Major Alarm Bit Map field when the command dspcd is entered. The alarm
message indicates the failed PXM1 by slot.

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Note

Note: Certain hardware failures prevent alarms from being set. If this occurs, the log files and screen
display should be used to determine if a failure has occurred.

Log Files
Each time the diagnostics are run, the results are logged in a file on the PXM1 drive. If a standby PXM1
exists, a separate log file is written to that disk and must be viewed separately.
•

The log files on the active PXM1 also indicate if a failure occurred on the standby PXM1.

•

Only the three most recent log files are retained. If three files exist and a new test is run, the oldest
log file is overwritten by the new file.

•

Log files are named onlinediag.MONTHDAY_hh:mm. The files are saved in C:DIAG.

•

If a failure occurs, a message is also added to the shelf event log.

Commands to Operate the Online Diagnostics
The following commands are used to operate the Online Diagnostics:

oldiags
This command runs the diagnostics on both the active PXM1 and the standby PXM1 (if available). Two
options are available for this command. If the command is entered without specifying any options, the
default values are automatically used. If options are used, they must be entered in the order shown:
•

This option determines the amount of information to be displayed on the screen.
This detail is shown on the screen only. Log files contain a standard set of information and are not
affected by this option.
– debug_level is a value between 0 and 3.
– 0 (the default) displays the least amount of detail.
– 3 displays the most detail.

•

enables or disables automatic switchover to the standby PXM1.
– 0 (the default) disables automatic switchover.
– 1 enables automatic switchover.

oldiags-help or oldiags help
These help commands display a description of the oldiags command and options.

oldclrlock
oldclrlock clears the lock of a previous oldiags process.
If an oldiags process is stopped while running (either from a keyboard command or unexpected process
shutdown), the command will be locked and cannot be run again until the lock is cleared. The oldclrlock
command clears this lock.

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Note

Note: Do not use oldclrlock while another instance of oldiags is running on the shelf.

oldsplog
The oldsplog command displays the log files that are automatically created each time a diagnostic test
is performed. Log files are named onlinediag.MONTHDAY_hh:mm. The files are saved in C:DIAG.
If oldsplog is run without a variable, the most recent log file will be displayed by default.
The log_name variable is used to view an older file or a file that resides in a directory other than
C:DIAG. If the file to be viewed is saved in C:DIAG, only the name of the file needs to be entered. A
full path name can also be used if the file resides outside the default directory.
oldsplog can be run from either the active or standby PXM1. Log files are saved on each individual
PXM1 and must be viewed separately.

oldclralm
The oldclralm command clears Online Diagnostic alarms.
The variable is used to specify which PXM1 slot is to be cleared. This variable is
mandatory.
oldclralm can only be run from the active PXM1.

DS3 Loopback Test
This section contains instructions to test DS3 loopback functionality using CLI commands.

Loopback Tests
Configure Loopback on the Entire DS3 Line
To verify that the loopback can be configured on the entire DS3 line:
Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the line using cnfln -felpbnum 30.

Step 3

Check that dsplog does not show any errors or alarms logged.

Step 4

Using dspln, check that FarEndLoopbkLineNum has been configured to be ds3line.
Pass Criteria:
•

No errors logged on the console or the log due to configuring loopback on PXM-T3.

•

Configured loopback can be displayed using dspln.

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Chapter 6

Card and Service Configuration
DS3 Loopback Test

Configure Loopback on All DS1s in a DS3 Line
To verify that the loopback can be configured on all the DS1s of the DS3 line:
Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the line using cnfln -felpbnum 29.

Step 3

Check that dsplog does not show any errors or alarms logged.

Step 4

Using dspln, check that FarEndLoopbkLineNum has been configured to be ds1lineall.
Pass Criteria:
•

No errors logged on the console or the log due to configuring loopback on all DS1 lines of PXM-T3.

•

Configured loopback can be displayed using dspln.

Receive a Loopback Request

MGX 8230 Switch
with T3 Interface

Loopback Activation Code
Retransmit Pattern

DTA Tester
(Digital
Transmission
Analyzer)

46090

To verify that DS3 interface can be put into loopback:

Step 1

Select a node with PXM-T3 back card.

Step 2

Make sure that the FEAC code validation criteria on the DS3 interface is not disabled using dspln -ds3
..

Step 3

Configure the HP cerjac tester to send a pattern to the DS3 interface of the node.

Step 4

Any pattern sent will cause the interface to put itself into loopback and the interface retransmits the same
pattern back to the tester.

Step 5

From the tester, verify that the same is received back on the tester, thus validating the loopback on the
DS3 interface.

Step 6

Check that dsplog does not show any errors or alarms logged.
Pass Criteria:
•

The pattern sent by the tester is received back to the tester as is.

•

No errors logged on the console or the log.

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DS3 Loopback Test

Configure Transmit FEAC Code
Configure DS3 for Sending Looped or Normal Data

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that DS3 can be configured to send looped or normal data:

Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the line using cnfln -felpbnum 30.

Step 3

Configure the transmit FEAC code to be dsx3SendNoCode by using CLI command, cnfln -ds3
. -tfeac 1.

Step 4

On the node, verify that the default FEAC code shows up as LineXmtFEACCode : SendNoCode using
dspln -ds3 ..

Step 5

Check that dsplog does not show any errors or alarms logged.

Step 6

On the tester (for example, HP cerjac tester), check that the code for dsx3SendNoCode has been received.
Pass Criteria:
•

The dspln should show LineXmtFEACCode as SendNoCode.

•

The code that has been transmitted is received on the tester and verified.

•

No errors logged on the console or the log.

Configure DS3 to Send Line Loopback

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that DS3 can be configured to send line loopback:

Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the line using cnfln -felpbnum 30.

Step 3

Configure the transmit FEAC code to be dsx3SendLineCode by using CLI command, cnfln -ds3
. -tfeac 2.

Step 4

On the node, verify that the default FEAC code shows up as LineXmtFEACCode : SendLineCode using
dspln -ds3 ..

Step 5

Check that dsplog does not show any errors or alarms logged.

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DS3 Loopback Test

Step 6

On the tester (for example, HP cerjac), check that the code for dsx3SendLineCode has been received.
Pass Criteria:
•

The dspln should show LineXmtFEACCode as SendLineCode.

•

The code that has been transmitted is received on the tester and verified.

•

No errors logged on the console or the log.

Configure DS3 for Sending Loopback Deactivation Request

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that DS3 can be configured to send loopback deactivation request:

Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the line using cnfln -felpbnum 30.

Step 3

Configure the transmit FEAC code to be dsx3SendResetCode by using CLI command, cnfln -ds3
. -tfeac 4.

Step 4

On the node, verify that the default FEAC code shows up as LineXmtFEACCode : SendResetCode using
dspln -ds3 ..

Step 5

Check that dsplog does not show any errors or alarms logged.

Step 6

On the tester (for example, HP cerjac), check that the code for dsx3SendResetCode has been received.
Pass Criteria:
•

The dspln should show LineXmtFEACCode as SendResetCode.

•

The code that has been transmitted is received on the tester and verified.

•

No errors logged on the console or the log.

Configure Receive Validation FEAC Code
Configuring FEAC Validation Criteria to be FEACCodes4Of5

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that validation criteria for DS3 can be configured to be FEACCodes4Of5:

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DS3 Loopback Test

Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the receive FEAC validation criteria to be 4 out of 5 by using CLI command, cnfln -ds3
. -rfeac 1.

Step 3

On the node, verify that the default FEAC code shows up as LineRcvFEACValidation : 4 out of 5 FEAC
codes using dspln -ds3 ..

Step 4

Check that dsplog does not show any errors or alarms logged.
Pass Criteria:
•

The dspln should show LineRcvFEACValidation as 4 out of 5 FEAC codes.

•

The validation code that has been received on the node and verified.

•

No errors logged on the console or the log.

Configure FEAC Validation Criteria to be FEACCodes8Of10

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that validation criteria for DS3 can be configured to be FEACCodes8Of10:

Step 1

Select a node with PXM-T3 back card.

Step 2

Configure the receive FEAC validation criteria to be 8 out of 10 by using CLI command, cnfln -ds3
. -rfeac 2.

Step 3

On the node, verify that the default FEAC code shows up as LineRcvFEACValidation : 8 out of 10 FEAC
codes using dspln -ds3 ..

Step 4

Check that dsplog does not show any errors or alarms logged.
Pass Criteria:
•

The dspln should show LineRcvFEACValidation as 4 out of 5 FEAC codes.

•

The validation code that has been received on the node and verified.

•

No errors logged on the console or the log.

Negative Tests
Disable FEAC Codes
Verify that the FEAC codes can be disabled to ensure the remote end initiated FEAC does not result in
an automatic loop of the near-end equipment:

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MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

DS3 Loopback Test

Step 1

Select a node with PXM-T3 back card.

Step 2

Disable the receive FEAC validation criteria by using CLI command, cnfln -ds3 .
-rfeac 3.

Step 3

Using dspln -ds3 ., check that the FEAC validation code is disabled and the line is not in
loopback.

Step 4

Put the HP cerjac tester in loopback mode by pressing the loopback up button.

Step 5

From the tester, send a pattern and verify that it is not received back on the tester.

Step 6

Check that dsplog does not show any errors or alarms logged.
Pass Criteria:
•

Disabling the FEAC validation code put the line in no loop.

•

Anything transmitted from the tester is not received back on the tester when FEAC codes are
disabled on the DS3 interface.

•

No errors logged on the console or the log.

Configure DS3 Loopback Codes from the Standby PXM1 Card

MGX 8230 Switch
with T3 Interface

Transmit FEAC Codes
Receive FEAC Validation

DTA Tester
(Digital
Transmission
Analyzer)

46087

To verify that DS3 loopback codes cannot be configured from the standby PXM-1 card:

Step 1

Select a node with redundant PXM-T3 cards.

Step 2

Log on to the standby card.

Step 3

Configure the line using cnfln -ds3 . -felpbnum 30.

Step 4

Try to configure the transmit FEAC code to be dsx3SendNoCode by using CLI command, cnfln -ds3
. -tfeac 1.

Step 5

Check that CLI rejects the command and fails to accept it.

Step 6

dsplog shows logs an error or a alarm logged.

Step 7

On the tester (for example, HP cerjac tester), check that the code for dsx3SendNoCode has not been
received.
Pass Criteria:
•

DS3 loopback codes cannot be invoked from the standby card.

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DS3 Loopback Test

•

The code that has been transmitted is not received on the tester.

•

Error message should be logged in the log regarding an unaccepted command.

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A P P E N D I X

Technical Specifications
This appendix provides the technical specifications relevant to the MGX 8230, its processor and service
modules, and the applications and services that it provides. It contains the following sections:
•

MGX 8230 Enclosure, Power, and Performance Specifications

•

MGX 8230 Processor Switching Module Specifications

•

AUSM/B-8T1E1 Interface Characteristics

•

FRSM-2CT3 Specifications

•

FRSM-2T3E3 Specifications

•

FRSM-HS2 Specifications

•

FRSM HS1/B Specifications.

•

Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2

•

FRSM-8T1 Specification

•

FRSM-8E1 Specification

•

Circuit Emulation Service Module for T1 Operation

•

Circuit Emulation Service Module for E1 Operation

•

Physical and Electrical Characteristics for Cards

MGX 8230 Enclosure, Power, and Performance Specifications
This section describes the physical characteristics and system power requirements for the
MGX 8230 feeder. The “MGX 8230 Processor Switching Module Specifications” section lists the
dimensions, weight, and power consumption for each card. The appendix titled “Cabling Specifications”
lists the AC power plugs for domestic and international use.
Table A-1 shows the MGX 8230 enclosure and electrical characteristics.

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Appendix A

Technical Specifications

MGX 8230 Enclosure, Power, and Performance Specifications

Table A-1

Enclosure and Electrical Characteristics

Item

Value

Card Slot Capacity

Supports combinations of full and single-height service modules.
Two double-height slots reserved for PXMs.
Up to 10 single-height slots for service modules or
up to 5 double-height slots for service modules.

Enclosure Size,
AC-powered system

8 Rack Units high
Height: 14.00 inches (35.56 cm).
Width: 17.72 ins (45.01 cm).
Depth: 23.5 ins (59.69 cm) (excluding cable management)

DC-powered system

7 Rack Units high
Height: 12.25 inches (63.50 cm).
Width: 17.72 inches (45.01 cm).
Depth: 23.5 inches (59.69 cm) (excluding cable management)

Shipping Weight for
Populated Enclosure

Approximately 150 lbs.

Clearance Requirement

Minimum 30 inches front and rear; nominal 12-inch side clearance.

Power Input Voltage

AC system: Normal operating range is 100–240 VAC, 47 to 63 Hz.
The maximum voltage range is 90–264 VAC.
DC system: –42 to –56 VDC.
Each AC supply can provide up to 1200 Watts at –48 VDC.

Current Requirements,
AC System

Configuration-dependent: use Network Design Tool for exact
requirements.

Current Requirements,
DC System

Configuration-dependent: use Network Design Tool for exact
requirements. For general planning purposes: 25 Amps at nominal –48
VDC; 29 Amps at –42 VDC maximum.

Input AC Power
Connector

IEC 320 C13 input connector. The Appendix titled “Cabling
Specifications” lists the AC power cords for a variety of countries and
regions.

AC Power Cable

Provided with 8 feet (2.3 m) of 3-conductor wire with plug.

AC Plug at
Customer end

20 A NEMA L620, 3-prong plug (domestic U.S.)
13 A 250 Vac BS1363, 3-prong fused plug (UK, Ireland)
CEE 7/7 (Continental Europe)
AS3112 (Australia/New Zealand)
CEI23-16/VII (Italy)
125V/15A North America

DC Input Connections

Three-position terminal block for 10 AWG wire (4 square millimeters).

Operating Environment

0°–40° C (32°–104° F) normal operation (50° C or 122° F up to 72 hours).
Maximum 85% relative humidity.

Shock

Withstands 10 G, 10 ms at 1/2 sine wave.

Vibration

Withstands 1/4 G, 20–500 Hz.

Heat Transfer to
Environment

AC-powered: 4,800 BTUs.
DC-powered: 4,100 BTUs.

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Appendix A

Technical Specifications
MGX 8230 Processor Switching Module Specifications

Table A-1

Enclosure and Electrical Characteristics (continued)

Item

Value

MGX 8230 Performance
Cell bus bandwidth
Slots 3 to 5, 10 to 12:

~160 Mbps per slot, single speed
~320 Mbps per slot, double speed

Slots 6 to 7, 13 to 14

~160 Mbps per two slots, single speed
~320 Mbps per two slots, double speed

Alarm and error
handling

Same as MGX 8850 and IGX 8400 series switches

MGX 8230 Processor Switching Module Specifications
This section contains general specifications for the Processor Switching Module (PXM). The
information in Table A-2 includes information for the two types of back cards—the PXM-UI user
interface and the uplink card for trunking and CPE access.
Table A-2

PXM Specifications

Category

Description

Maximum switch fabric
throughput.

1.2 Gbps.

Control access:

Control port: RJ-45 connector, EIA/TIA 232, DTE mode,
asynchronous interface 19,200 baud, 1 start, 1 stop, no parity.

These ports exist on the
PXM-UI back card.

Maintenance port: RJ-45 connector, EIA/TIA 232, DTE
mode, asynchronous interface 9600 baud, 1 start bit, 1 stop
bit, no parity bits.
LAN port: RJ-45 connector, 10-BaseT, 802.3 Ethernet.

2 T3 ports, BNC connectors
2 E3, BNC connectors
An uplink card can have 4 OC-3 multi-mode fiber, SC connectors
one of these number and 4 OC-3 single-mode fiber, intermediate reach, SC connectors
type of connectors. The 4 OC-3 single-mode fiber, long reach, SC connectors
1 OC-12 single-mode fiber, intermediate reach, SC
wavelength on optical
connectors
lines is 1310 nm.
1 OC-12 single-mode fiber, long reach, SC connectors
Uplink ports and
connectors:

Number of logical ports: 32 across all physical ports on the uplink card (regardless of
line type).

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Appendix A

Technical Specifications

MGX 8230 Processor Switching Module Specifications

Table A-2

PXM Specifications (continued)

Category

Description

LEDs on PXM front
card:

Status for the card:

LEDs display status, but
alarm history is a switch.

•

Green means active.

•

Red means failed.

•

Yellow indicates the standby card.

LAN activity: flashing green indicates activity.
Node alarm:
•

Red indicates major alarm.

•

Yellow indicates minor alarm.

Node power (note that each AC power supply also has an
LED):
•

“DC OK A” is green for okay or red for trouble.

•

“DC OK B” is green for okay or red for trouble.

Alarm history: ACO
Port interface (per port):

LEDs on back cards:

•

Green means active and okay.

•

Red means active and local alarm.

•

Yellow means active and remote alarm.

•

No light means inactive or not provided.

Green means active. No light means inactive or not provided.

Stratum 4
8 KHz clock derived from:
synchronization (internal
• Internal 8 KHz clock (10 ppm).
only):
Stratum 3
synchronization (internal
and external):

BITS clock interface:

•

Free-Run Accuracy of +/- 4.6 ppm (+/- 7 Hz @
1.544 MHz)

•

Holdover stability of less than 255 slips (+/- .37 ppm ) for
the initial 24 hours of holdover.

•

Upon clock switchover, MTIE (Maximum Time Interval
Error) shall not exceed 1 microsecond. The rate of phase
change shall not exceed 81 ns in 1.326 ms interval.

•

Pull-in range of accuracy +/- 4.6 ppm.

•

Provide jitter filtering and tolerate jitter according to
AT&T T1.5 and ITU G.824 specifications.

•

Declare a bad reference if LOS detected >50 ms or error
burst of duration >2.5 sec.

T1 and E1 with an RJ-45 connector.
Note: older systems with a PXM-UI back card have an SMB
connector for E1.

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Appendix A

Technical Specifications
MGX 8230 Processor Switching Module Specifications

Table A-2

PXM Specifications (continued)

Category

Description

Trunk history counters:

Ingress, per connection:
Number of received cells with CLP=0.
Number of received cells with CLP=1.
Egress, per connection:
Number of received cells.
Number of transmitted cells.
Number of received cells with EFCI bit set.
Number of transmitted cells with EFCI bit set.

Connection capacities
supported by PXM:

Maximum number of connections:
16,000 bi-directional channels for local switching.
32,000 bi-directional channels for switching across uplink
card.
Maximum aggregate bandwidth:
600 Mbps local switching (service module to service
module).
1,200 Mbps switching across uplink.
Cell memory: 256K cells.

Processor clock speed
and memory specifics:

Clock speed: 200 MHz internal, 50 Mhz external.
Flash memory: 2 Mbytes.
DRAM: 64 Mbytes, upgradeable to 128 Mbytes.
Secondary cache: 512 Kbytes.
BRAM: 128 Kbytes.
Hard disk: 4 Gbytes.

Alarm indicators
(audible and visual):

Central office-compatible alarm indicators and controls
through a DB15 connector.

Maintenance features:

Internal isolation loopback.
External remote loopback.
Hot-pluggable.

Card dimensions:

Front card: 15.65 inches by 16.83 inches (39.75 cm by 42.75
cm).
Back cards: 7.25 inches by 4.125 inches (18.42 cm by 10.48
cm).

Power:

Requires –48 VDC, dissipates 100W.

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Appendix A

Technical Specifications

AUSM/B-8T1E1 Interface Characteristics

AUSM/B-8T1E1 Interface Characteristics
This section contains details for the AUSM/B-8T1E1. For physical characteristics, see Table A-3. For
the T1 and E1 characteristics, see Table A-3 and Table A-5, respectively. For ATM interface
characteristics, see Table A-6. For statistics and counters, see Table A-7.l
Table A-3

Physical Characteristics of the AUSM/B-8T1E1

Category

Description

LED Indicators Per Card

Active (green), Standby (yellow), Fail (red)

LED Indicators Per Line

One per line: Active and OK (green)
Active and Local Alarm (red)
Active and Remote Alarm (yellow)

Maintenance/Serviceability Facility loopback via loop up/down per ANSI T1.408 and
ATT TR 62411 (T1), CCITT G.7xx (E1)
Facility Loopback via Management Console
Internal Problem Isolation Loopbacks
Hot pluggable
Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

Power

–48 VDC, 30W

Safety

EN 60950 2nd edition (including EN 41003) UL 1950 2nd edition

Compliance

T1: G.703, G.824
E1: G.703, G.823

ESD

IEC 61000-4-2

Table A-4

T1 Interface Characteristics

Category

Description

Line Interface

RJ-48 (100 ohms) on the LM-RJ48-8T1 back card

Line Rate

1.544 Mbps ± 50 bps (T1)

Synchronization

Transmitter can be loop-timed, receiver, or synchronized to node (normal
mode)

Line Code

Bi-polar 8 Zero Substitution (B8ZS) per ANSI T1.408 (T1)

Line Framing

Extended Superframe Format (ESF 24 frame multi-frame) per ANSI T1.408

ESF Maintenance

Bit-oriented alarm and loopback messages of ESF Data Link per ANSI
T1.408

Input Jitter Tolerance Per ITU-T G.824
Output Jitter

Per ITU-T G.824 using normal mode synchronization.

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Appendix A

Technical Specifications
AUSM/B-8T1E1 Interface Characteristics

Table A-4

T1 Interface Characteristics (continued)

Physical Layer
Alarms

LOS, OOF, AIS, RAI

Physical Layer
Performance
Statistics

LCV, LES, LSES, CV, ES, MGX 8230, SEFS, AISS, UAS

Table A-5

E1 Interface Characteristics

Category

Description

Line Interface
Connector

RJ-48 (120 ohms) on LM-RJ48-8E1, or SMB (75 ohms) on
LM-SMB-8E1

Line Rate

2.048 Mbps ± 100 bps

Synchronization

Transmitter can be: loop timed, receiver, or synchronized to shelf (normal
mode)

Line Code

HDB3 (E1)

Line Framing

16-frame multi-frame as in G.704

Input Jitter Tolerance

As specified in ITU G.823 for 2.048 Mbps

Output Jitter Generation As specified in ITU G.823 for 2.048 Mbps
Physical Layer Alarms

LOS, OOF, AIS, RAI

Physical Layer
Statistics

LCV, LES, LSES, CV, ES, MGX 8230, SEFS, AISS, UAS

Table A-6

ATM Interface Characteristics

Category

Description

Standards

ATM UNI v3.1, ITU-T G.804, per CCITT I.361.

Channel Configuration

1000 per card, across any of the T1 or E1 ports.

VPI/VCI Ranges

VPI: 0–255.
VCI: 0–4096.

Traffic Classes

CBR, VBR, VBR+.

UPC Parameters

PCR, SCR (VBR), CCDV (CBR).

Congestion Control
Support

ForeSight (toward Network for VBR+).

ForeSight Parameters

MIR, PIR, Rate Up, Rate Down, QIR, QIR Timeout, IBS.

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A-7

Appendix A

Technical Specifications

AUSM/B-8T1E1 Interface Characteristics

Table A-7

AUSM/B-8T1E1 Statistics and Counters

Counter Type

Description

Per Port

Number of cells received from the interface.
Number of cells received with unknown VPI/VCI.
Last known VPI/VCI received from the port.
Number of cells discarded due to error in Cell Header.
Number of cells received with non-zero GRC field.
Number of cells transmitted to the interface.
Number of cells transmitted for which EFCI was set.
Number of egress cells discarded due to service interface physical
alarm.

Endpoint (channel)

Ingress

Number of cells received from port.
Number of cells received from the port with CLP = 1.
Number of cells received from the port with EFCI = 1.
Number of cells from the port discarded due to queue exceeded
QDepth.
Number of cells (with CLP) set) discarded due to queue exceeded
CLP threshold.
Number of cells from the port for which CLP was set due to UPC
violations.

ATMizer Channel Counters
Ingress

Number of cells transmitted to cell bus.
Number of cells to cell bus for which EFCI was set.
Number of cells to cell bus discarded due to shelf alarm.

Egress

Number of cells received from the cell bus.
Number of cells discarded due to queue exceeded QDepth (per
Egress Q).
Number of cells discarded due to queue exceeded CLP threshold
(per Egress Q).
Number of cells received with CLP = 1.

Other Counters
Ingress

Number of OAM cells discarded.
Number of AIS cells received from the port.
Number of RDI (FERF) cells received from the port.
Number SegmentLpBk cells received from the port.
Number of SegmentLpBk cells transmitted to cell bus.

Egress

Number of OAM cells discarded.
Number of AIS cells transmitted to the port.
Number of SegmentLpBk cells transmitted to the port.
Number of SegmentLpBk cells received from the port.

Diagnostic Statistics

Peak Queue Depth (Ingress: per channel).

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Appendix A

Technical Specifications
FRSM-2CT3 Specifications

FRSM-2CT3 Specifications
This section provides details for the FRSM-2CT3. Topics consist of the following:
•

Transport technology standards with which the card complies (Table A-8)

•

General physical attributes of the card, such as LEDs on the faceplate (Table A-9)

•

Line and framer characteristics (Table A-10 and “FRSM-2CT3 Framer” section)

•

Line alarms (“FRSM-2CT3 Line Alarms”)

Table A-8

Frame Relay Interface Standards

Interface

Standard

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per ITU-T I.363

FR-Cell Interworking

Per ITU-T I.555 and I.36x.1, as summarized in “ATM-to-Frame Relay
Interoperability Implementation Agreement” v 1.0

Table A-9

FRSM-2CT3 Front Card Physical Characteristics

Feature

Significance or Value

Power

–48 VDC, 60W (estimated)

Card Status Indicator
LEDs

Active (Green),
Failed (Red),
Standby (Yellow)

Line Status Indicator
LEDs

Active & Okay (Green),
Active & Local Alarm (Red),
Active & Remote Alarm (Yellow)

Reliability

> 85000 hours MTBF (target)

Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)

Table A-10 FRSM-2CT3 Line Level

Feature

Significance or Value

Number of T3 Lines

Two

Line Interface Connector

75 ohm BNC

Line Rate

44.736 Mbps +/- 20 ppm

Line Coding

B3ZS

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per GR-449-CORE, ITU-T G.824

Output Jitter

0.05 UI maximum with jitter-free input clock

Output Pulse

Per T1.102.1993

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

A-9

Appendix A

Technical Specifications

FRSM-2T3E3 Specifications

FRSM-2CT3 Framer
The FRSM-2CT3 line framer:
•

Supports M13 or C-bit parity format.

•

Performs required inversion of second and fourth multiplexed DS1 streams per ANSI T1.107.

•

Generates loop-up code to the far-end device to loop back any of the DS1s or entire DS3 signal
stream by way of the FEAC channel.

•

Automatically detects the incoming loop-up codes from the far-end device as well as loop back any
of the DS1s or entire DS3 signal stream back to the far-end device. The loopback occurs at the M13
framer chip.

FRSM-2CT3 Line Alarms
For line alarms, the FRSM-2CT3 supports:
•

Detection and generation of Remote Alarm Indicator (RAI) signal (also known as FERF and Yellow
signal)

•

Detection and generation of Alarm Indication Signal (AIS)

•

Detection of Out of Frame (OOF) condition

•

Detection of Loss of Frame (LOS) condition

•

Automatic generation of Far End Block Error (FEBE)

FRSM-2T3E3 Specifications
This section provides details for the FRSM-2T3E3. Where appropriate, it has separate sections for T3
and E3 technologies. Topics consist of the following:
•

Transport technology standards with which the card complies (Table A-11)

•

General physical attributes of the card, such as LEDs on the faceplate (Table A-12)

•

Line and framer characteristics for T3 operation (Table A-13 and “T3 Framer Level”)

•

Line and framer characteristics for E3 operation (Table A-14 and “E3 Framer Level”)

•

Line alarms (“FRSM-2T3E3 Line Alarms”)

Table A-11 Frame Relay Interface Standards

Interface

Standard

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 ITU-T I.363

FR-Cell Interworking

Per ITU-T I.555 and I.36x.1, as summarized in ATM-to-Frame Relay
Interoperability Implementation Agreement v 1.0

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Appendix A

Technical Specifications
FRSM-2T3E3 Specifications

Table A-12 FRSM-2T3E3 Front Card Physical Characteristics

Feature

Significance or Value

Power

–48 VDC, 60W (estimated)

Card Status Indicator LEDs

Active (Green),
Failed (Red),
Standby (Yellow)

Line Status Indicator LEDs

Active & Okay (Green),
Active & Local Alarm (Red),
Active & Remote Alarm (Yellow)

Reliability

> 85000 hours MTBF (target)

Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

FRSM-2T3E3 T3 Line
The T3 line characteristics appear in Table A-13.
Table A-13 T3 Line Level

Feature

Significance or Value

Number of T3 Lines

Two

Line Interface
Connector

75 ohm BNC

Line Rate

44.736 Mbps +/- 20 ppm

Line Coding

B3ZS

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per GR-499-CORE, ITU-T G.824

Output Jitter

0.05 UI maximum with jitter-free input clock

Output Pulse

Per ANSI T1.102

T3 Framer Level
For the framing characteristics of T3 operation, the FRSM-2T3E3:
•

Supports C-bit parity and M13 DS3 format.

•

Frames to a DS3 signal with a maximum average reframe time that meets the requirements set by
TR-TSY-000009 and GR-499-CORE.

•

Detects the alarm indication signal (AIS) in milliseconds in the presence of a 10-3 bit error rate.

•

When in-frame, indicates M-bit or F-bit framing errors as well as P-bit errors. In C-bit parity mode,
it also indicates both C-bit parity errors and far end block errors.

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Appendix A

Technical Specifications

FRSM-HS2 Specifications

FRSM-2T3E3 E3 Line
For characteristics of the line on an FRSM-2T3E3 with an E3 back card see figure A14:
Table A-14 E3 Line Level

Feature

Significance or Value

Number of E3 Lines

Two

Line Interface Connector

75 ohm BNC

Line Rate

34.368 Mbps +/- 20 ppm

Line Coding

HDB3

Transmit Timing

Normal or Loop timed

Input Jitter Tolerance

Per ITU-T G.823

Output Jitter

0.05 UI maximum with jitter-free input clock per AT&T TR54014

Output Pulse

Per ITU-T G.703

E3 Framer Level
For line framing, the E3 operation of the FRSM-2T3E3 complies with ITU-T G.751.

FRSM-2T3E3 Line Alarms
For line alarms, the FRSM-2T3E3 supports:
•

Detection and generation of Remote Alarm Indicator (RAI) signal (also known as FERF and Yellow
signal)

•

Detection and generation of Alarm Indication Signal (AIS)

•

Detection of Out of Frame (OOF) condition

•

Detection of Loss of Frame (LOS) condition

•

Automatic generation of Far End Block Error (FEBE)

Statistics and Counter Specifications
See the section titled “Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2” for lists
of applicable statistics and counters.

FRSM-HS2 Specifications
The FRSM-HS2 is the Frame Relay module with two HSSI ports. The topics in this section are:
•

Transport technology standards with which the card complies (Table A-15)

•

General physical attributes of the card, such as LEDs on the faceplate (Table A-16)

•

Line and framer characteristics (Table A-17)

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Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Appendix A

Technical Specifications
FRSM-HS2 Specifications

For lists of the counters and statistics that are available on the FRSM-VHS series of cards, see the section
titled “Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2.”
Table A-15 Frame Relay Interface Standards

Interface

Standard

Frame Relay Interface

ANSI T1.618, 2-octet header

ATM Layer

CCITT I.361 and ATM UNI v3.1

AAL Layer

AAL5 per ITU-T I.363

FR-Cell Interworking

Per ITU-T I.555 and I.36x.1, as summarized in ATM-to-Frame Relay
Interoperability Implementation Agreement v 1.0

Table A-16 FRSM-HS2 Physical Characteristics

Feature

Significance or Value

Power

–48V, 75W (estimated)
The SCSI2-2HSSI back card consumes 5 watts at
5 VDC and 6 watts at -5 VDC.

Card Status Indicator LEDs

Active (Green),
Failed (Red),
Standby (Yellow)

Line Status
Indicator LEDs

Active & Okay (Green),
Active & Local Alarm (Red),
Active & Remote Alarm (Yellow)

Reliability

> 85000 hours MTBF (target)

Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

Table A-17 FRSM-HS2 Line Characteristics

Feature

Significance or Value

Number of HSSI Lines

Two

Connector Type

SCSI-2

Signaling Rate

52 Mbps max

Line Alarms

•

Control lead is inactive

•

Recovered clock does not match configured line rate

Synchronization

Transmitter may be either loop-timed to Receiver (DTE mode) or
synchronized to shelf (DCE mode)

Electrical Interchange
Characteristics

ITU-T V.12

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Appendix A

Technical Specifications

Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2

Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and
FRSM-HS2
This section lists counters and statistics that apply to most types of cards in the FRSM-VHS group.
Table A-18 Counters per Line

Counter
Received frames lost due to aborts
Received frames lost due to illegal header (EA bit)
Received frames lost due to CRC errors
Received frames with bit alignment errors
Received frames with unknown DLCI
Received frames with illegal frame length
Received good frame
Transmit frames lost due to under-run/Abort count
Transmit good frame
LMI status inquiry request count
LMI signaling protocol (keep-alive time-out count)
LMI sequence number error count
LMI status transmit count (in response to request)
LMI update status transmit count (in response to configuration changes
Frames with FECN set count
Frames with BECN set count
DE frames discarded count
Number of frames reassembled but discarded due to service interface physical layer alarm

Table A-19 Service-Related Statistics

Service Statistic
Number of received frames
Number of bytes received
Number of frames received with DE=1
Number of frames received but discarded
Number of received bytes discarded

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Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Appendix A

Technical Specifications
Counters and Statistics for FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2

Table A-19 Service-Related Statistics (continued)

Service Statistic
Number of frames received but discarded due to
•

CRC error

•

Illegal frame length

•

Alignment error

•

Abort

Number of frames reassembled and transmitted
Number of frames reassembled and transmitted with DE=1
Number of frames discarded due to reassembly errors
Number of frames transmitted
Number of bytes transmitted
Number of frames transmitted with DE set
Number of frames transmitted during LMI logical port alarm
Frames FECN set count
Frames BECN set count
Number of transmit frames discarded
Number of transmit bytes discarded
Number of transmit frames discarded due to:
•

CRC error

•

Illegal frame length

•

Alignment error

•

Abort

•

DE egress queue threshold exceeded

•

Physical link failure

Table A-20 ATM Cell-Related Statistics

ATM Cell Statistic
Number of cells transmitted to PXM
Number of cells discarded due to intershelf link alarm
Number of cells transmitted with CLP bit set
Number of AIS cells transmitted
Number of FERF cells transmitted
Number of BCM cells transmitted
Number of end-to-end loop back cells transmitted
Number of segment loop back cells transmitted
Number of cells received from PXM

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A-15

Appendix A

Technical Specifications

FRSM-HS1/B X.21

Table A-20 ATM Cell-Related Statistics (continued)

ATM Cell Statistic
Number of cells received with CLP bit set
Number of AIS cells received
Number of FERF cells received
Number of BCM cells received
Number of end-to-end loopback cells received
Number of segment loopback cells received
Number of OAM cells discarded due to CRC-10 error

Table A-21 Diagnostic-Related Statistics

Diagnostic Statistic
Header of last cell with unknown LCN
Header of last received frame with unknown DLCI
ECN current queue depth

Table A-22 Troubleshooting Statistics

Troubleshooting Statistic
ECN current queue depth, per channel

FRSM-HS1/B X.21
Interfaces
•

Four X.21 lines

•

DCE/DTE selection on a per-port basis

•

As DCE, clock speeds of 48 Kbps, 56 Kbps, n x 64 Kbps up to 2 Mbps, n x 1.5 Mbps and n x 2 Mbps,
up to 10 Mbps, are supported

•

As DTE, obtains clock from line, up to 10 Mbps

•

Supports 1000 DLCIs per card

•

Support for per-VC queueing on ingress with closed-loop traffic management

•

Support for two priority levels of egress port queues for data traffic

•

Various DCE/DTE loopbacks

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Appendix A

Technical Specifications
FRSM-8T1 Specification

FRSM-8T1 Specification
This section provides information on the T1 operation of the FRSM-8T1E1 card set. Topics are:
•

General physical information about the card set (Table A-23)

•

Information about the Frame Relay service (Table A-24)

•

System-level interface (Table A-25)

•

Statistics and counters (Table A-26)

Table A-23 General Card Specifications

Category

Description

Indicators per card

Active (Green), Standby (Yellow), Fail (Red)

Indicators per line

Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Line Interface connector

RJ-48 when used with RJ48-8T1 back card

Line Rate

1.544 Mbps ± 50 bps

Line Framing

ESF per ATT TR 54016

Maintenance/Serviceability
Features

Internal Problem Isolation Loopbacks
Hot-pluggable cards

Reliability, MTBF

> 65000 hours

Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)
Power: –48 VDC, 30W with 8 active T1 lines

Table A-24 Frame Relay Service With T1 Lines

Category

Description

Synchronization

Transmitter may be either loop-timed to receiver or synchronized
to shelf (called normal mode)

Input Jitter Tolerance

Per ITU-T G.824

Output Jitter Generation

Per ITU-T G.824 using normal mode synchronization

Physical Layer Alarms

LOS, OOF, AIS, RAI

Number of Frame Relay Ports

One–a single Frame Relay stream occupying N consecutive time
slots

Frame Relay Interface Rates

Either of the following:

Frame Relay Interface

•

56 Kbps

•

N x 64 Kbps (where N is the number of consecutive time slots)

Per ANSI T1.618, 2-octet header

Cisco MGX 8230 Edge Concentrator Installation and Configuration
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Appendix A

Technical Specifications

FRSM-8T1 Specification

Table A-24 Frame Relay Service With T1 Lines (continued)

Category

Description

Frame Relay Performance
Counters (per Port; N x DS0)

Received frames discarded due to Aborts
Received frames discarded due to illegal header (EA bit)(s)
Received frames discarded due to CRC errors (s)
Received frames discarded due to alignment errors (s)
Received frames discarded due to unknown DLCI (s)
Received frames discarded due to illegal frame length (s)
Received frames discarded due to DE threshold exceeded
Received frames with DE already set
Received frames with FECN already set
Received frames with BECN already set
Received frames tagged FECN
Received frames (s)
Received bytes (s)
Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold
exceeded Transmit frames (s)
Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)
LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response
to configuration changes)

Diagnostics (per port)

Last unknown DLCI received

Table A-25 System Interface

Category

Description

ATM Layer

Per ITU-T I.361 and ATM UNI v3.1

AAL Layer

AAL5 per ITU-T I.363

FR-Cell Interworking

Per ITU-T I.555 and I.36x.1, as summarized in Frame Relay Forum,
FR/ATM PVC Interworking Implementation Agreement FRF.5

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Appendix A

Technical Specifications
FRSM-8T1 Specification

Table A-26 List of Counters

Category

Description

Channels (endpoints) per card

256, which you can allocate across any of the interfaces

Service Counters

Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-depth (s)
Number of frames received and discarded due to: intershelf alarm
exceeded DE threshold (s)
exceeded Q depth (s)
Number of frames received with FECN set
Number of frames received with BECN set
Number of frames received tagged FECN
Number of frames received tagged BECN

Note that an (s) at the end of
the description means the
data in the counter is usable as
a statistic.

Number of frames transmitted (s)
Number of bytes transmitted (s)
Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort
physical link failure (T1)
ATM cells: Number of cells transmitted to PXM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-to-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from PXM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-to-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)

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Appendix A

Technical Specifications

FRSM-8E1 Specification

Table A-26 List of Counters (continued)

Category

Description

Statistics

If any of the counters in the preceding category of Service Counters
includes an “(s),” you can configure it for statistics usage

Diagnostics

Last unknown LCN received
Number of cells with unknown LCN

FRSM-8E1 Specification
This section provides information on the E1 operation of the FRSM-8T1E1 card set. Topics are:
•

General physical information about the card set (Table A-27)

•

Information about the Frame Relay service (Table A-28)

•

System-level interface (Table A-29)

•

Statistics and counters (Table A-30)

Table A-27 General Card Specifications

Category

Description

Line Interface connector

RJ-48 when used with RJ-48-8E1 line module.
SMB when used with SMB-8E1 line module

Line Rate

2.048 Mbps ± 100 bps

Synchronization

Transmitter may be either loop-timed to receiver or synchronized to
shelf (normal mode)

Input Jitter Tolerance

Per ITU-T G.823

Output Jitter Generation

Per ITU-T G.823

Physical Layer Alarms

LOS, OOF, AIS, RAI

Indicators per card

Active (Green), Standby (Yellow), Fail (Red)

Indicators per line

Active & Okay (Green)
Active & Local Alarm (Red)
Active & Remote Alarm (Yellow)

Maintenance/Serviceability
Features

Internal Problem Isolation Loopbacks
Hot-pluggable cards

Reliability, MTBF

> 65000 hours

Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

Power

–48 VDC, 30W with 8 active E1 lines

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Appendix A

Technical Specifications
FRSM-8E1 Specification

Table A-28 Frame Relay Service With E1 Lines

Category

Description

Number of Frame Interfaces

1–31 occupying N, where 1 < N < 31. Sum of all < 31 for CCS or
1–30 for CAS.

Frame Relay Interface Rates

Either 56 Kbps orN x 64 Kbps, where N is the same as defined in
the preceding item the preceding item “Number of Frame
Interfaces.”

Ingress

8000-cell buffer shared between virtual channels/paths
standard usage parameter control (UPC)
Selective Cell Discard
Virtual Circuit Queuing
EFCI setting per VC

Egress

8000-cell storage capacity shared between four ports
Up to 12 user-selectable egress queues per port
Selective Cell Discard
EFCI setting per Queue

Frame Relay Interface

Per ANSI T1.618, 2-octet header

Frame Relay Performance
Received frames discarded due to Aborts
Counters (per Port; N x DS0): Received frames discarded due to illegal header (EA bit)(s)
Received frames discarded due to CRC errors (s)
Received frames discarded due to alignment errors (s)
Received frames discarded due to unknown DLCI (s)
Received frames discarded due to illegal frame length (s)
Received frames discarded due to DE threshold exceeded
Received frames with DE already set
Received frames with FECN already set
Received frames with BECN already set
Received frames tagged FECN
Received frames (s)
Received bytes (s)

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Appendix A

Technical Specifications

FRSM-8E1 Specification

Table A-28 Frame Relay Service With E1 Lines (continued)

Category

Description
Transmit frames discarded due to underrun
Transmit frames discarded due to Abort
Transmit frames discarded due to egress Q-depth exceeded (s)
Transmit bytes discarded due to egress Q-depth exceeded (s)
Transmit frames discarded due to egress DE threshold exceeded
Transmit frames (s)
Transmit bytes(s)
Transmit Frames with FECN set (s)
Transmit Frames with BECN set (s)
LMI receive status inquiry request count (s)
LMI transmit status inquiry request count
LMI invalid receive status count (s)
LMI signaling protocol (keep alive time-out count) (s)
LMI sequence number error count (s)
LMI receive status transmit count (in response to request)
LMI transmit status transmit count (in response to request)
Transmit frames during LMI alarm (s)
Transmit bytes during LMI alarm (s)
LMI update status transmit count (in response to configuration
changes)

Diagnostics (per port):

Last unknown DLCI that arrived

Table A-29 System Interface

Category

Description

ATM Layer

Per ITU-T I.361 and ATM UNI v3.1

AAL Layer

AAL5 per ITU-T I.363

FR-Cell Interworking

Per ITU-T I.555 and I.36x.1, as summarized in Frame Relay Forum,
FR/ATM PVC Interworking Implementation Agreement FERF.5

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Appendix A

Technical Specifications
FRSM-8E1 Specification

Table A-30 List of Counters

Category

Description

Channels (Endpoints)

256 per card—can be allocated across any of the Frame Relay
interfaces

Counters

Service Counters: Number of frames received (s)
Number of bytes received (s)
Number of frames received with DE already set (s)
Number of bytes received with DE already set (s)
Number of frames received with unknown DLCI
Number of frames received but discarded (s)
Number of received bytes discarded (s)
Number of received bytes discarded due to exceeded Q-Depth (s)
Number of frames received and discarded due to
•

intershelf alarm

•

exceeded DE threshold (s)

•

exceeded Q depth (s)

Number of frames received with FECN set
Number of frames received with BECN set

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Appendix A

Technical Specifications

Circuit Emulation Service Module for T1 Operation

Table A-30 List of Counters (continued)

Category

Description
Number of frames received tagged FECN
Number of frames received tagged BECN
Number of frames transmitted (s)
Number of bytes transmitted (s)
Number of frames transmitted with DE set (s)
Number of frames discarded due to reassembly errors (s)
Number of frames transmitted during LMI logical port alarm(s)
Number of frames transmitted with FECN set (s)
Number of frames transmitted with BECN set (s)
Number of transmit frames discarded (s)
Number of transmit bytes discarded
Number of transmit frames discarded due to: CRC error (s)
egress Q depth exceeded (s)
egress DE threshold exceeded source abort physical link failure (T1)
ATM cells: Number of cells transmitted to PXM
Number of cells transmitted with CLP bit set
Number of OAM AIS cells transmitted (s)
Number of OAM FERF cells transmitted (s)
Number of BCM cells transmitted
Number of OAM end-to-end loopback cells transmitted (s)
Number of OAM segment loopback cells transmitted
Number of cells received from PXM
Number of cells received with CLP bit set
Number of OAM AIS cells received (s)
Number of OAM FERF cells received (s)
Number of BCM cells received
Number of OAM end-to-end loopback cells received (s)
Number of OAM segment loopback cells received
Number of OAM cells discarded due to CRC-10 error (s)
Statistics: All of the above counters followed by an (s) can be
configured as statistics.
Diagnostics: Last unknown LCN received
Cells with unknown LCN count
Card General

Circuit Emulation Service Module for T1 Operation
This section contains operational details for the CESM 8T1E1 with the RJ48-8T1 back card.
Table A-31 CESM 8T1 Card Information

Category

Description

Back Card

RJ48-8T1

Line Rate

T1: 1.544 Mbps ±50 bps

Transmit Clocking

Normal clock or SRTS generated

Line Coding

B8ZS

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Appendix A

Technical Specifications
Circuit Emulation Service Module for E1 Operation

Table A-31 CESM 8T1 Card Information (continued)

Category

Description

Frame mode

ESF

Line alarms

Loss or Signal (LOS)
Loss of Frame (LOF)
Loss of multiframe (LOMF)
Remote loss of signal or frame (RAI)
All ones received (AIS)
Bi-polar violation

Alarm indication times

Near end alarm up-count
Near end alarm down-count
Near end alarm maximum count
Far end alarm up-count
Far end alarm down-count
Far end alarm maximum count

Supported OAM cells

AIS
FERF
End-to-end loopback
Segment loopback
RTD loopback
BCM

Physical Layer Performance
Statistics

N/A

LED Indicators Per Card

Active (green), Failed (red), Standby (yellow)

BERT

Active (green), Errors (yellow)

1:N Redundancy

Active (green)

Indicator for each T1

Active (green)

Reliability, MTBF
Card Size

Front card: 7.25 inches by 15.83 inches (18.42 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

Power

48 VDC, 30W

Loopbacks

On or Off

Circuit Emulation Service Module for E1 Operation
This section contains operational details for the CESM-8T1E1 with an E1 back card.
Table A-32 CESM 8E1 Card Set Details

Category

Description

Back Card

RJ48-8E or SMB-8E1

Line Rate

E1: 2.048 Mbps ± 100 bps (50 ppm)

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Appendix A

Technical Specifications

Circuit Emulation Service Module for E1 Operation

Table A-32 CESM 8E1 Card Set Details (continued)

Category

Description

Transmit Clocking

Normal clock or SRTS generated

Line Coding

HDB3

Frame mode

single-frame
multi-frame

Line alarms

Loss or Signal (LOS)
Loss of Frame (LOF)
Loss of multi-frame (LOMF)
Remote loss of signal or frame (RAI)
All ones received (AIS)
Bi-polar violation

Alarm indication times

Near end alarm up-count
Near end alarm down-count
Near end alarm maximum count
Far end alarm up-count
Far end alarm down-count
Far end alarm maximum count

Supported OAM cells

AIS
FERF
End-to-end loopback
Segment loopback
RTD loopback
BCM

Physical Layer Performance
Statistics

N/A

Indicators
Card-level

Active (green), Failed (red), Standby (yellow)

BERT

Active (green), Errors (yellow)

1:N Redundancy

Active (green)

Indicator for each T1

Active (green)

Reliability, MTBF
Card Size

Front card: 15.65 inches by 15.83 inches (39.75 cm by
42.75 cm)
Back cards: 7.25 inches by 4.125 inches (18.42 cm by
10.48 cm)

Power

-48VDC, 30 W

Loopbacks

On or Off

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Appendix A

Technical Specifications
Physical and Electrical Characteristics for Cards

Physical and Electrical Characteristics for Cards
For quick reference, Table A-33 shows physical dimensions and power consumption for each card.
Detailed information for each card appears in the section of this appendix for a specific card.
Table A-33 Physical Characteristics and Power Consumption by Card

Module

Back Cards

Front Card
Dimensions
(inches)

Back Card
Dimensions
(inches)

FRSM-8T1

8 T1, 8 E1

7.25 x 15.83

7.00 x 4.50

1.74 lbs/
0.76 lbs

30 Watts

FRSM-2CT3

2 T3

7.25 x 16.25

7.00 x 4.50

1.74 lbs/
0.76 lbs

60 Watts

FRSM-2T3E3

2 T3, 2 E3

7.25 x 16.25

7.00 x 4.50

1.74 lbs/
0.76 lbs

60 Watts

FRSM-HS2

2 HSSI

7.25 x 16.25

7.00 x 4.50

1.74 lbs/
0.6 lbs

75 Watts

CESM-8T1E1

8 T1, 8 E1

7.25 x 16.25

7.00 x 4.50

1.74 lbs
0.76 lbs

30 Watts

AUSM/B-8T1E1 8-T1, 8-E1

7.25 x 16.25

7.00 x 4.50

1.74 lbs
0.76 lbs

30 Watts

PXM1

15.65 x 15.83

7.00 x 4.5

4.80 lbs

100 Watts

FRSM-8E1

Weight (front and Power
back card)
Consumption

FRSM-8T1c
FRSM-8E1c

OC-3c/STM-1

Electromagnetic Compatibility
This section lists the national and international standards for electromagnetic compatibility to which the
MGX 8230 complies. It consists of a list of reference documents, a table (Table A-34) that indicates
applicability of the standards, and the test levels for CE mark immunity.
The applicable standards for electromagnetic compatibility are
•

NEBS Systems Requirements (GR-1089-CORE)

•

EN 55022/08.94

•

EN 50081-1/01.92 and EN 50082-1/01.92 (Generic Immunity Requirements), International
Electromechanical Commission (IEC 61000-4-2 through IEC 61000-4-5) European Norm
designation EN 61000-4-2 through EN 61000-4-5

Details on how each standard applies in this Cisco product appear in Table A-34.
Table A-34 Electromagnetic Compatibility and Immunity

Category

AC-Powered (110/220 VAC

DC-Powered (-48V)

U.S.A EMC

FCC Part 15, Class A

not applicable

Japan EMC

Austel 3548 Class A

not applicable

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Appendix A

Technical Specifications

Conformance

Table A-34 Electromagnetic Compatibility and Immunity (continued)

Category

AC-Powered (110/220 VAC

DC-Powered (-48V)

Australia EMC VCCI Class A

not applicable

CE mark

not applicable

Immunity

NEBS

EMC: EN 55022 Class A
•

EN 50082-1 (generic
immunity)

•

EN 61000-4-2 through -5

not applicable

(EMC)

EMC:
GR-1089-CORE Class A (radiated and
magnetic fields) and line conductance.
GR-1089-CORE ESD (8 KV contact) RS
(10 V/meter) CS (clause 3.3.3)
European Telecom Standards (ETSI) for Surge:
ETSI 300 386-1, DC power leads only
(200 VAC–1000 VAC)

The levels for the mandatory CE mark immunity tests are
•

For IEC 61000-4-2 (ESD), the test level is 4.

•

For IEC 61000-4-3 (RS), the test level is 3.

•

For IEC 61000-4-4 (EFT), the test level is 4.

•

For IEC 61000-4-5 (Surge), the test level is 3.

Conformance
This section contains standards compliance information for features on the MGX 8230.

ATM UNI
The ATM specifications for the User-Network Interface to which the MGX 8850 complies are
•

ATM Forum–ATM UNI, V3.1, 1995.

•

ITU Recommendation I.361–B-ISDN ATM Layer Specification, March 1993.

•

ITU Recommendation I.371–Traffic Control and Congestion Control in B-ISDN, March 1993.

•

ITU Recommendation I.432–B-ISDN User Network Interface—Physical Interface Specification,
March 1993.

•

ANSI T1E1.2/94-002R1, Draft–B-ISDN and DS1/ATM User Network Interfaces: Physical Layer
Specification.

•

ANSI T1E1.2/94-020, Draft–B-ISDN Customer Installation Interfaces, Physical Media Dependent
Specification.

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Appendix A

Technical Specifications
Conformance

SONET/SDH
The standards and responsible organizations with which MGX 8850 SONET technology complies are as
follows:
•

Bell Communications Research–SONET Transport Systems: Common Generic Criteria,
GR-253-CORE, Issue 2, 1995.

•

Bell Communications Research–Broadband Switching System Generic Requirements,
GR-1110-CORE, Issue 1, Sept. 1994.

•

Bell Communications Research–ATM and ATM AAL Protocols, GR-1113-CORE, Issue 1, July
1994.

•

Bell Communications Research–Generic Requirements for Operations of Broadband Switching
Systems, GR-1248-CORE, Issue 2, Rev 1.

•

ITU-T G.707–Network Node Interface for the Synchronous Digital Hierarchy.

•

ITU Recommendation G.782–Types and General Characteristics of Synchronous Digital Hierarchy
(SDH) Equipment, January 1994.

•

ITU Recommendation G.783–Characteristics of Synchronous Digital Hierarchy (SDH) Equipment
Functional Blocks, January 1994.

•

ITU Recommendation G.832–Transport of SDH Elements on PDH Networks: Frame and
Multiplexing Structures, November 1993.

•

ITU Recommendation G.958–Digital Line Systems based on the Synchronous Digital Hierarchy for
use on Optical Fibre Cables, November 1994.

•

ANSI T1.105–Digital Hierarchy–Optical Interface Rates and Formats Specifications (SONET),
1991.

•

ANSI T1.231–Digital Hierarchy–Layer 1 In-Service Digital Transmission Performance Monitoring
(SONET), 1993.

Frame Relay
The standards and responsible organizations with which MGX 8230 Frame Relay technology complies
are as follows:
•

FRF.1.1

•

FRF.2.1

•

FRF.5

•

FRF.8

Circuit Emulations Service
ATM Forum CES 2.0.

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Appendix A

Technical Specifications

Conformance

Safety
The MGX 8230 enclosure meets all applicable regulatory agency Product Safety requirements.
•

UL 1950, Third Edition (Standard for Safety, Information Technology Equipment, Including
Electrical Business Equipment).

•

CSA C22.2-#950- M95, (Standard for Safety, Information Technology Equipment, Including
Electrical Business Equipment).

•

EN 60 950 (Safety of Information Technology Equipment, Including Electrical Business
Equipment).

•

TS001 Austel-Safety Requirements for Customer Equipment. (Including AS3260, Safety of
Information Technology Equipment)-Australia.

•

EN 41003 (European Product Safety Standard for Telecommunications Equipment).

Environmental
The MGX 8230 adheres to the Bellcore GR-63-CORE environmental standard.

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A P P E N D I X

Cable Specifications
This appendix contains details on the MGX 8230 cabling. It includes the following sections:

Note

•

T3 Trunk Cabling

•

Frame Relay Cabling

•

DC Power Cabling

•

AC Power Cabling

•

Control and Clock Cabling

•

External Alarm Cabling

In all cable references, the transmit direction is away from the MGX 8230, and the receive direction
is toward the MGX 8230.

T3 Trunk Cabling
A trunk cable connects each T3 port on the BNC-2T3 back card to a T3 port on other equipment. See
Table B-1 and Table B-2 for details.
Table B-1

Trunk Cables

Cable Parameter

Description

Type

75-ohm coax cable (RG-59 B/U for short runs, AT&T 734A for longer runs).
Two per T3 line (XMT and RCV).

Max. Length

450 feet maximum between the MGX 8230 and other equipment.

Connector

Terminated in male BNC; Rx is received from trunk, Tx is transmitted to
trunk.

Table B-2

T3 Connector Pin Assignments

Connector

Description

Rx BNC

Receive T3 from trunk

Tx BNC

Transmit T3 to trunk

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Appendix B

Cable Specifications

Frame Relay Cabling

Frame Relay Cabling
T1 Cabling
Trunk cables connect the customer DSX-1 cross-connect point or T1 Channel Service Unit (CSU) to the
MGX 8230 at the T1 back card. See to Figure B-1 and Table B-3 for details.
Cable Parameter

Description

Cable Type

Western Electric 22 AWG, ABAM individually shielded twisted
pair
(100 ohm balanced). Two pair per T1 line (1 transmit and 1 receive).

Cable Connector

RJ-48C male. (Figure B-1 illustrates the RJ-48 connector pin out.)

Max. Cable Length

655 ft. (199.664 m) maximum between the MGX 8230 node and the
first repeater or CSU. Selection of cable length equalizers.

Table B-3

Note

RJ-48C T1/E1 Connector Pin Assignments

Pin No.

Description

Transmit Tip

Transmit Ring

Transmit Shield

Receive Tip

Receive Ring

Receive Shield

Transmit direction is toward the T1 trunk.

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Appendix B

Cable Specifications
Frame Relay Cabling

Figure B-1

RJ-48 Connectors
RJ-48 Pins
TTIP

IN
IN

TRNG

2
1
5
4

RTIP
RRNG

OUT
OUT

shield

26270

E1 Cabling
SMB Connector
E1 trunk cables connect the customer DSX-1 cross-connect point or E1 Channel Service Unit (CSU) to
the node at the FRSM E1 back card (SMB-8E1). See Table B-4 and Table B-5.
Table B-4

E1 Trunk/Circuit Line Cabling Specification

Cable Parameter

Description

Cable Type
(BNC-8E1)

75-ohm coax cable for unbalanced connection. Two cables/pairs (1 transmit,
1 receive) per E1 line.

Cable Connector

16 female SMB for unbalanced connection. See Tables A-2 and A-4 for
pinouts.

Max. Cable Length

Approximately 100 meters maximum between the MGX 8230 node and the
first repeater or CSU. Equalizer for cable length.

Table B-5

E1 Connector Pin Assignments (unbalanced)

Connector

Description

Rx BNC

Receive E1 from trunk

Tx BNC

Transmit E1 to trunk

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Appendix B

Cable Specifications

Frame Relay Cabling

12IN1-S4 V.35/X.21 Back Card
The back card for the MGX-FRSM-HS1/B is the 12IN1-S4. Each port on the back card connects through
a DTE version or DCE version of the Cisco 12IN1 cable. For the signals on the back card, see Table B-7
and Table B-8. The tables show the signal acronym, signal name, and signal source. The signal depends
whether the backcard connector is either DTE or DCE and whether the backcard has been set as either
X.21 or V.35 as shown in Table B-6. For the part numbers of the standard and non-standard versions of
the 12IN1 cables, see Table B-9.
Table B-6

Note

12IN1-S4 cable types

Cable Type

X.21

V.35

DCE

X.21 DCE

V.35 DCE

DTE

X.21 DTE

V.35 DTE

The cable type and part number are printed on a plastic band located near the smaller connector.
Table B-7

V.35 signals

Signal

Name

Source

RTS

Request to Send

DTE

DTR

Data Terminal Ready

DTE

CTS

Clear To Send

DCE

DSR

Data Set Ready

DCE

DCD

Data Carrier Detect

DCE

GND

Ground

both

B_LL

Local Loopback

DTE

GND

Ground

both

TxD+

Transmit Data

DTE

TxD–

Transmit Data

DTE

RxD+

Receive Data

DCE

RxD–

Receive Data

DCE

TXCE

Secondary Clear to Send

DTE

TXCE

Secondary Clear to Send

DTE

RxC+

Receive Clock

DCE

RxC–

Receive Clock

DCE

TxC+

Transmit Clock

DCE

TxC–

Transmit Clock

DCE

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Appendix B

Cable Specifications
Frame Relay Cabling

Table B-8

X.21 Signals

Signal

Name

Mode_2

Local connections

Mode_DCE

Local connections

Gournd

Shield Ground

O_TXD/RSC+

Transmit +

OTXD/RXD-

Transmit -

O_RTS/CTS+

Control +

O_RTS/CTS-

Control -

I_RDX/TXD+

Receive +

I_RXD/TXD-

Receive -

ICTS/RTS+

Indication +

I_CTS/RTS-

Indication -

I_RXC/TXCE+

Timing +

I_RXC/TXCE-

Timing -

GND

CCT Ground

Table B-9

Cable Part Numbers for MGX-FRSM-HS1/BV

Type of Cable

Far End Connector

Part Number

X.21 DTE

male

72-1440-01

X.21 DCE

fremale

72-1427-01

V.35 DTE

male (standard)

72-1428-01

V.35 DTE

female (atypical)

72-1436-01

V.35 DCE

female (standard)

72-1429-01

V.35 DCE

male (atypical)

72-1437-01

V.35 DTE-DCE

72-1441-01

Straight-through

72-1478-01

Loopback plug

72-1479-01

HSSI Port Connectors
The High Speed Serial Interface (HSSI) port connects through a female SCSI-II connector This
connector accords with ANSI/TIA/EIA-613. See Table B-10 for the pinouts.
Table B-10 Pinouts for SCSI-II Connector

Pin No.

Name

Signal Function

Polarity

Signal Source

Send Data

DTE

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Appendix B

Cable Specifications

DC Power Cabling

Table B-10 Pinouts for SCSI-II Connector

Pin No.

Name

Signal Function

Polarity

Signal Source

Receive Data

DCE

29
6

Send Timing

31
2

Receive Timing

27
6

Terminal Timing

DCE Available

DTE Available

Loop Ckt A

DCE

DTE

Loop Ckt B

37
5

35
12

DCE

33
10

+
-

28
8

+
_

13
3

DTE

Loop Ckt C

DCE

Signal Ground

DC Power Cabling
DC Power connections are made to the DC Power Entry Modules at the rear of the MGX 8230. See Table
B-11 and Table B-12 for acceptable cable and wire types. Cisco normally does not provide wiring for
DC-powered systems. See Table B-11 for details on DC wiring.
Table B-11 DC Power Wiring

Cable Parameter

Description

Wiring

Three conductor, 10 AWG recommended wire gauge, min. 60°C insulation
rating, copper conductors only. Solid or stranded wires. Wire insulation
stripped back 0.25” (6 mm) at the MGX 8230 connector end.

Connection

EURO Block.

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Appendix B

Cable Specifications
AC Power Cabling

AC Power Cabling
Either Cisco Systems or the customer can provide the AC power cord. See Table B-12 for the power
cords that Cisco can supply. In addition, you can special-order AC cables with other plugs or different
lengths. If you want to construct the power cord, it must mate with an IEC320 (C-14) 10/15A male
receptacle on the back of the AC power module.
Table B-12 AC Power Cables

Cable Parameter

Description

Cable

Provided with 8 feet (2.3 m) of 3-conductor wire with plug.

Plug (customer end) 20 A NEMA L620, 3-prong plug (domestic U.S.)
Need 15A NEMA 5-15 for US and Canada.
13 A 250 Vac BS1363, 3-prong fused plug (UK, Ireland)
CEE 7/7 (Continental Europe)
AS3112 (Australia/New Zealand)
CEI23-16/VII (Italy)
125V/15A North America

Control and Clock Cabling
This section describes the cables that can connect to the PXM-UI card.

Maintenance and Control Ports
The Maintenance (or Modem) port and the Control (or Console) port connect an MGX 8230 to an ASCII
terminal, workstation, or modem for remote alarm reporting or system monitoring. Refer to Table B-13
for a description of the cabling and Table B-14 for the pinout of the associated RJ45 connector.
Table B-13 Maintenance and Control Port Cabling

Cable Parameter

Description

Interface

EIA/TIA-232—both are DTE ports.

Suggested Cable

24 AWG, 8-wire. A straight-through EIA/TIA-232 cable provides a terminal
or printer connection. For an interface with modems on either port, a null
modem cable may be necessary.

Cable Connector

RJ45, subminiature, male. Table B-14 contains a list of the port pin
assignments.

Max. Cable Length

50 feet (15 m)

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Appendix B

Cable Specifications

External Alarm Cabling

Table B-14 RJ-45 Maintenance and Control Port Pin Assignments

Pin No.

Name

Description

RTS out

Request to Send

DTR out

Data Terminal Ready

TxD

Transmit Data

GND

Signal Ground

GND

Signal Ground

RxD

Receive Data

DSR

Data Set Ready

CTS

Clear to Send

External Clock Input Cabling
The MGX 8230 has two external clock input connectors: a T1 RJ-45 connector and E1 SMB connector.

T1 Clock Cabling
The clock port can accept a T1 or E1 BITS clock input. (See Table B-15)
Table B-15 7T1 Clock Cabling

Pin No.

Name

Tx ring out

Tx tip out

Ground

Rx ring in

Rx tip in

No comment

Test point ring out

Test point tip out

External Alarm Cabling
The external alarm cable connects to the Alarm connector on the PXM-UI card. See Table B-16 for
physical characteristics of the cable and Table B-17 for the pinouts.
Table B-16 External Alarm Cabling

Cable Parameter

Description

Interface

Dry-contact relay closure.

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Appendix B

Cable Specifications
External Alarm Cabling

Table B-16 External Alarm Cabling

Cable Parameter

Description

Wire

24 AWG, shielded, 6-pair.

Connector

DB-15, Subminiature, male.

Table B-17 Network Alarm Pin Assignments

Pin No.

Alarm

Description

Audible—Major

Normally open

Common

Normally closed

Visual—Major

Normally open

Common

Normally closed

unused

n.c.

unused

n.c.

Audible—Minor

Normally open

Common

Normally closed

Visual—Minor

Normally open

Common

Normally closed

unused

n.c.

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Appendix B

Cable Specifications

External Alarm Cabling

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Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

G L O S S A R Y

A
ABR

Available Bit Rate is a Class of Service defined for ATM connections by the ATM Forum.
Devices using ABR are guaranteed no more than a certain rate of throughput. This rate
dynamically changes and the current value is relayed to the sending device by way of Resource
Management (RM) cells.

B
BCC

The switch control card in the BPX is the Broadband Control Card, which has a 68040
processor.

BPX switch

The Broadband Packet Exchange (BPX) is Cisco’s high-end ATM switch developed for the
service provider market. The BPX 8600 series switch is a carrier-quality switch, with trunk and
CPU hot-standby redundancy.

BXM

The Broadband Switch Module (BXM) cards are ATM port cards for the BPX switch that use
the Monarch chip set.

C
Cell bus

The cell bus in the MGX 8230 is the way that the service modules exchange data with the
switching fabric on the PXM.

CiscoView

GUI-based device-management software application that provides dynamic status, statistics,
and comprehensive configuration information for Cisco internetworking products, such as the
MGX 8230, or IGX switch or BPX switch.

Cisco WAN Manager

The Cisco WAN Manager (CWM) is the network management application for the Cisco wide
area switches, such as the BPX switch or the IGX switch. CWM was previously known as
StrataView Plus.

Class of Service (CoS)
Buffer

A buffer or queue which serves connections with similar QoS requirements.

A component of a Service Class Template that contains Class of Service Buffer configurations
Class of Service (CoS)
Buffer Descriptor Template indexed by CosB number. Note: A Qbin is a platform-specific (BXM in this case) instance of
the more general Class of Service Buffer (or CosB).

Cisco MGX 8230 Edge Concentrator Installation and Configuration
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GL-1

Glossary

C
ComBus

The ComBus is the BPX’s internal messaging bus.

Community

In the context of SNMP, a relationship between an agent and a set of SNMP managers that
defines security characteristics. The community concept is a local one, defined at the agent.
The agent establishes one community for each desired combination of authentication, access
control, and proxy characteristics. Each community is given a unique (within this agent)
community name, and the management stations within that community are provided with and
must employ the community name in all get and set operations. The agent may establish a
number of communities, with overlapping management station membership.

E
Enterprise MIB

A MIB module defined in the enterprise-specific portion of the Internet management space

F
A feeder is a small switch which acts as an extension shelf, typically with lower-bandwidth
interfaces, for a larger switch. The larger switch is referred to as the Routing Node for the
Feeder(s). The MGX 8230 acts as a feeder to the IGX 8400 series switch.

Feeder

I
The Cisco IGX 8400 series wide area switch designed to provide backbone for enterprise data,
voice, fax, and video applications. The Cisco IGX switch was formerly referred to as the Cisco
StrataCom IGX switch.

IGX switch

M
Managed device

A device containing a network management agent implementation.

MGX 8230

An 7-slot chassis build with MGX 8850 style architecture that currently is used as a feeder shelf
for the IGX. Used as an IGX feeder, the MGX 8230 supports MGX 8850/MGX 8250 service
modules.

MIB

Management Information Base, a structured set of data variables, called objects, in which each
variable represents some resource to be managed.

MIB-II

Internet-standard MIB, RFC 1213

Cisco MGX 8230 Edge Concentrator Installation and Configuration

GL-2

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Glossary

P
PXM

Processor Switch Module. The processor card used in MGX 8850 series switches. The PXM is
the processor used in the MGX 8230 product. Although functionally equivalent to a PXM, the
PXM is not interchangeable with a PXM and will not fit in an MGX 8850 card slot.

Q
Qbin

A Qbin is a platform-specific (BXM in this case) instance of the more general Class of Service
Buffer (or CosB).

R
Routing Node

In tiered networks terminology, a Routing Node is a larger switch to which one or more feeders
or controllers are attached. The IGX switch serves as the routing node for an MGX 8230 feeder.

S
SNMP

Simple Network Management Protocol.

U
UBR

Unspecified Bit Rate is a Class of Service for ATM networks defined by the ATM Forum.
Traffic in the UBR class is not guaranteed any particular throughput or delay performance. In
this regard, UBR is similar to “traditional” IP service.

Uplink back card

The back card that mates with PXM and provides ATM trunking. The MGX 8230 supports only
an OC-3 uplink back card.

User interface back card

The back card (PXM-UI) that mates with the PXM and provides interfaces for control or
maintenance terminals, LAN connections, T1 or E1 clock inputs, and alarm outputs.

V
Virtual Switch Interface

See VSI.

VSI

Virtual Switch Interface is a master/slave protocol that allows Cisco WAN switches, such as
the BPX 8600 series switch or the MGX 8850/8250 node, to be controlled by more than one
network application. MPLS, or AutoRoute are examples of network applications.

VSI Controller

A controller, such as a Tag Switch Controller, which controls a switch using the VSI.

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

GL-3

Glossary

V
VSI Master

A VSI Master process implementing the master side of the VSI protocol in a VSI Controller.
Sometimes the whole VSI Controller might be referred to as a “VSI Master,” but this is not
strictly correct.

VSI Platform

A VSI Platform is a switch with one or more VSI Slaves allowing connections to be set up
using the VSI.

VSI Slave

A VSI Slave process implementing the slave side of the VSI protocol within a VSI Platform.
Sometimes a whole VSI Platform might be referred to as a “VSI Slave,” but this is not strictly
correct.

Cisco MGX 8230 Edge Concentrator Installation and Configuration

GL-4

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

I N D E X

IMA

Numerics

6-14

AUSM/B-8T1E1
1 to 1 redundancy

1-16

list of applications

2-15

Automatic Protection Switching, see APS
AX-CESM-8E1

A
AAL5

AX-CESM-8T1

AC Power
3-17

AC Power Supply Module

4-14, 4-15

AC Power Supply module

1-6

AC power supply tray
addaimgrp
addlink

1-6, 4-14

6-46, 6-50
5-11

6-27, 6-28, 6-30, 6-31, 6-32

AX-FRSM-8T1

6-27, 6-28, 6-30, 6-31, 6-32, 6-50

PXM-UI

5-11

1-12

Back Cards

6-47, 6-51, 6-52

backplane

alarm outputs, PXM-UI

2-6

BERT

alarm reporting

2-60
1-9

6-25, 6-53

for AUSM
6-37

6-14, 6-43

initiated on PXM

APS

6-5

MGX-CESM-T3 or MGX-CESM-E3

B version SONET cards

2-2, 6-9

ATM Inverse Multiplexing, see IMA and AUSM/B
ATM IP address

MGX-FRSM-2T3E3
6-14

5-7

MGX-AUSM/B-8E1

1-14

MGX-AUSM/B-8T1

1-14

bit error rate test, see BERT

6-53

6-7

BNC-2E3 back card
faceplate

2-11

BNC-2T3 back card

ATM UNI Service Module, see AUSM/B-8T1E1
AUSM

2-15

faceplate

2-10

bootChange command
6-14

5-4

Broadband Network Module

AUSM/B
as a clock source

6-42

6-37

Bit Error Rate Testing

ATM UNI Service Module

redundancy

AX-FRSM-8E1

back card

addport command

FRSM card

1-15

6-17

addln command

1-15

2-46, 2-57, 6-43

circuit emulation Service Module

circuit breakers

addred

2-45, 6-43

Circuit Emulation Service Module
2-20, 6-23

6-5

6-14

feature list, eight-port version

6-14

MGX-BNC-2E3

1-13

MGX-BNC-2T3

1-13

MGX-MMF-4-155

1-13

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

IN-1

Index

bulk distribution

Cisco cabinet

2-13

ground attachments

3-22

CiscoView application

configuring the MGX 8230 feeder

cable management

IP address

4-17

AC power
clock

IP address

B-7

addln

B-7

DC power

external alarm

5-11

addport

B-6

B-3
B-8

5-11

bootChange

5-4

cnfchanmap

2-23

cnfifastrk

B-2

cnfifip

caution
definition
Cell bus

5-2

CLI commands

B-7

control

5-2

Cisco WAN Manager application

cabling

5-13

5-12

5-7

cnfname

xxv

5-7

cnfportrscprtn

1-10

Cell bus controllers
Cell Loss Priority

cnfstatsmgr

1-9

cnfswfunc

2-25

center mounting in a rack

4-11

CESM
adding and modifying connections

5-8

cnftime

5-7

cnftmzn

5-8

AX-CESM-8E1

2-45, 6-43

dspcds

5-7

AX-CESM-8T1

2-45, 6-43

dspifip

5-7

reboot

5-5

bulk distribution

6-46

configuring the card,lines, and ports
LED indicators, 8-port
redundancy support

6-40, 6-45

scnfifastrk
sources

2-46

specifying redundancy

6-47

types

structured data transfer

6-43

cnfport

6-43

unstructured data transfer, T3 or E3

6-38

CIR
FRSM cards

5-12

6-5
6-6
6-30

cnfupcabr

6-19

cnfupccbr

6-18

cnfupcvbr

6-19

committed information rate, see CIR

6-32

Circuit Emulation Service Module

5-8

clock

2-46

unstructured data transfer

5-8

cnftmzngmt

6-40, 6-47

5-11

Congestion Indication

6-42

6-32

2-23, 2-25

AX-CESM-8E1

1-15

connecting power for AC Systems

4-14

AX-CESM-8T1

1-15

connecting power for DC systems

4-11

Circuit Emulation Service Module, see CESM
Circuit Emulation Service Module-T3E3, see
MGX-CESM-T3 or MGX-CESM-E3

2-45

connections
slave end description, remoteConnId

6-38

connections, master end

6-11

Cisco MGX 8230 Edge Concentrator Installation and Configuration

IN-2

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Index

console port, see control port
control port

front cards

5-2

Converting MGX 8230 slots
core card

MGX-HS2/B

5-2

1-5

1-14

2-59

FRSM
alarms

1-12

6-37

ATM layer status management
PVC status management

redundancy support

DC PEM

2-24

2-22

FRSM-VHS (very high speed)

1-7, 4-11

introduction

DC power entry modules
Also see DC PEM

FRSM-VHS, basic descriptions

1-7

DC power to the shelf

2-32
2-34

4-11

Double-height modules
dspcds commands

5-7

dspifip commands

5-7

1-4

G
gateway IP address

5-4

ground attachments for Cisco cabinet

3-22

grounding

Cisco cabinets

external clock connections

3-22

2-4

H
F

heat dissipation

fan tray

FEAC channel
feeder

hot standby

1-8

1-16, 2-22

A-10

Glossary-2

feeder, specifying the node as

5-8

firmware dowload

6-14

inband ATM connections

5-4

IP address assignment

firmware download
firmware release numbers
outline of steps

I
IMA

runtime firmware

5-5

CESM and FRSM examples
service module versions

5-10

5-9

6-27

Frame Service Module

5-2

5-11
5-11

Installing back cards

4-10

Installing front cards

4-10

interworking
network

5-9

frame relay connections

PXM logical port
inband ATM PVC

5-3

firmware downloading

firmware version

3-2

service

2-23
2-24

IP address

MGX-FRSM-2-CT3

1-14

Ethernet port

MGX-FRSM-2E3T3

1-14

gateway for PXM

5-2
5-4

Cisco MGX 8230 Edge Concentrator Installation and Configuration
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

IN-3

Index

statistics manager

MGX 8850 switch

5-2

initial configuration tasks

IP addresses
for PXM with no run-time firmware

5-4

5-1

MGX-AUSM/B-8E1
ATM UNI Service Module

1-14

MGX-AUSM/B-8T1

T1 ATM UNI Service Module

Light pipes

MGX-FRSM-2CT3

1-2

1-to1 Y-cable redundancy

line activation
PXM uplink

hot standby

5-11

2-22

1-16

MGX-FRSM-2T3E3

logical port creation
PXM

1-14

1-to1 Y-cable redundancy

5-11

hot standby

logical ports
configuring through CLI
creating on the PXM

5-10

2-22

1-16

MGX-FRSM-HS2
1-to-1 Y-cable redundancy

5-10

hot standby

2-22

1-16

MGX-HS2/B

unchannelized HSSI lines

maintenance port
mastership

6-11

MGX 8230

1-4

architecture
backplane

MGX-SMFIR-1-622

5-3

Broadband Network Module

SONET OC12/STM4 ATM interface

1-9

power system

1-13

MGX-SRM-3T3

1-9

bulkdistribution

1-8

faceplate

1-4

4-8
4-13

MGX 8230 fan tray assembly

1-8

MGX 8230 Installation and Configuration
manual organization

xxi

MGX 8230-MNT19
See mounting kit

2-13

MGX-SRM-3T3/B

1-6

processor slots
wiring block

1-13

MGX-SMFLR-1-622

fan tray assembly

weight

1-14

2-14

number of cards required

2-13

Service Resource Module

1-14

modem port, see maintenance port
Mounting kit
for 19-inch rack

4-4

for 23-inch rack

4-4

mounting with IGX or BPX switch

4-4

5-3

3-2

MGX 8230-MNT23
See mounting kit
MGX 8230-PXM

4-4

2-1

LEDs and indicators

2-2

network interworking

2-23

network managment

MGX 8800
management

1-11

over inband ATM PVCs

5-11

network synchronization
Cisco MGX 8230 Edge Concentrator Installation and Configuration

IN-4

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Index

from AUSM/B line

6-14

R
reboot command

5-5

receive direction, relative to MGX 8230

on-line firmware, see run-time firmware
overview of MGX 8220

B-1

redundancy

5-4

1 to N for AUSM T1 and E1

1-2

FRSM E1 mode

6-27

FRSM T1 mode

6-27

6-14

redundancy back cards

PAR
resource partitioning on PXM

5-6, 6-2

6-43

R-RJ48-8T1

6-43

Cisco Systems Mgx 8230 Installation And Configuration Guide

MGX 8230 to the manual 1bd3a95a-7607-4e81-9722-c92e66194cd6

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