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Cisco Catalyst Blade Switch 3120 for HP
Hardware Installation Guide
March 2008
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO
CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS
MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY
PRODUCTS.

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http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883

Text Part Number: OL-12246-01

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT
SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE
OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
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The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not
installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to
comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital
devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television
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You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits
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Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
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Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide
© 2008 Cisco Systems, Inc. All rights reserved.

C O N T E N T S

Preface

7

Audience
Purpose

7
7

Organization

7

Conventions

8

Related Publications

8

Obtaining Documentation, Obtaining Support, and Security Guidelines

CHAPTER

1

Product Overview

9

1

Switch Module Features Overview

1

Other Features 3
Switch Module Console Port 3
10/100/1000 Ports 4
10-Gigabit Ethernet Module Slots 4
Cisco TwinGig Converter Module 4
LEDs 5
StackWise Plus Ports 8
Power Connectors 8
Management Options 8
Using the Device Manager 9
Using the Command-Line Interface 10
Using the Onboard Administrator CLI and GUI
Other Management Options 10
Network Configurations 10

CHAPTER

2

Switch Installation

10

1

Preparing for Installation 1
Safety Warnings 2
Installation Guidelines 3
Verifying Package Contents

4

HP c-Class BladeSystem Enclosure Architecture

5

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Installing the Switch Module in the Blade Enclosure
Switch Module IP Addresses 8

6

Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running Express
Setup 9
Using Express Setup 11
Setting the Installed Switch Module As the Stack Master 12
Refreshing the PC IP Address 13
Planning and Creating a Switch Stack 13
Stack Cabling Configurations 14
Connecting to the StackWise Plus Ports

16

Installing Devices in the 10-Gigabit Ethernet Slots 17
Installing X2 Transceiver Modules and Cisco Converter Modules
Installing SFP Modules 20
Connecting to the 10/100/1000 Ports

22

Planning 10/100/1000 Ethernet Port Connections
Where to Go Next

CHAPTER

Troubleshooting

3

18

23

24

1

Diagnosing Problems 1
Verify the Switch Module POST Results 1
Look at the Switch Module LEDs 2
Confirm the Switch Module Connections 2
Verify the Switch Module Performance 4
Clearing the Switch Module IP Address and Configuration
Replacing a Failed Stack Member

5

Locating the Switch Module Serial Number

APPENDIX

A

Technical Specifications

APPENDIX

B

Connector and Cable Specifications

5

6

1

1

Connector Specifications 1
10/100/1000 Ports 1
10-Gigabit Ethernet Module Interfaces
Cisco TwinGig Converter Module Ports
Console Port 4

3
3

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Cable and Adapter Specifications 4
10-Gigabit Ethernet X2 Transceiver Module Cable Specifications
SFP Module Cable Specifications 6
Two Twisted-Pair Cable Pinouts 6
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports 7
Identifying a Crossover Cable 8
Console Port Adapter Pinouts 8

APPENDIX

C

Configuring the Switch with the CLI-Based Setup Program

4

1

Accessing the CLI Through the Console Port 1
Connecting to the Console Port 1
Completing the Initial Configuration 4
INDEX

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Contents

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Preface
Audience
This guide is for the networking or computer technician responsible for installing the Cisco Catalyst
Blade Switch 3120 for HP, referred to as the switch module, in the HP c-Class BladeSystem server
enclosure, referred to as the HP blade enclosure. We assume that you are familiar with the concepts and
terminology of Ethernet and local area networking. If you are interested in more training and education
in these areas, learning opportunities including training courses, self-study options, seminars, and career
certifications programs are available on the Cisco Training & Events web page:
http://www.cisco.com/web/learning/index.html

Purpose
This guide describes the hardware features of the Cisco Catalyst Blade Switch 3120 for HP. It describes
the physical and performance characteristics of the switch module, explains how to install it in the server
enclosure, and provides troubleshooting information.
This guide does not describe system messages that you might receive or how to configure your switch
module. For more information, see the switch software configuration guide, the switch command
reference, and the switch system message guide on the Cisco.com Product Documentation home page at:
http://www.cisco.com/en/US/products/ps6748/tsd_products_support_series_home.html

Organization
This guide is organized into these chapters:
Chapter 1, “Product Overview,” is a physical and functional overview of each of the switch modules,
including descriptions of the ports, the supported standards, and the LEDs.
Chapter 2, “Switch Installation,” contains the procedures on how to install the switch module in the
server enclosure and how to make port connections.
Chapter 3, “Troubleshooting,” describes how to identify and resolve some of the problems that might
arise when you install the switch module.
Appendix A, “Technical Specifications,” lists the physical and environmental specifications for the
switch modules and the regulatory agency approvals.

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Preface
Conventions

Appendix B, “Connector and Cable Specifications,” describes the connectors, cables, and adapters that
can be used to connect to the switch module.
Appendix C, “Configuring the Switch with the CLI-Based Setup Program,” has an installation and setup
procedure for a standalone switch module.

Conventions
This document uses these conventions and symbols for notes, cautions, and warnings:

Note

Caution

Warning

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

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

IMPORTANT SAFETY INSTRUCTIONS
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. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this device.
SAVE THESE INSTRUCTIONS (Statement 1071)

The safety warnings for this product are translated into several languages in the Regulatory Compliance
and Safety Information for the Cisco Catalyst Blade Switch 3000 Series for HP that ships with the
product. The EMC regulatory statements are also included in that guide.

Related Publications
These documents provide complete information about the switch module and are available from this
Cisco.com site (they are not orderable):
http://www.cisco.com/en/US/products/ps6748/tsd_products_support_series_home.html

Note

•

Cisco Catalyst Blade Switch 3000 Series for HP Getting Started Guide

•

Regulatory Compliance and Safety Information for the Cisco Catalyst Blade Switch
3000 Series for HP

•

Release Notes for the Cisco Catalyst Blade Switch 3120 for HP

Before installing, configuring, or upgrading the switch module, see the release notes on Cisco.com for
the latest information.
•

Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide

•

Cisco Catalyst Blade Switch 3120 for HP Command Reference

•

Cisco Catalyst Blade Switch 3120 for HP System Message Guide

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Obtaining Documentation, Obtaining Support, and Security Guidelines

•

Cisco Software Activation Document for HP

•

These compatibility matrix documents are available from this Cisco.com site:
http://www.cisco.com/en/US/products/hw/modules/ps5455/products_device_support_tables_list.html
– Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix
– Cisco Small Form-Factor Pluggable Modules Compatibility Matrix
– Compatibility Matrix for 1000BASE-T Small Form-Factor Pluggable Modules

Obtaining Documentation, Obtaining Support, and Security
Guidelines
For information on obtaining documentation, obtaining support, providing documentation feedback,
security guidelines, and also recommended aliases and general Cisco documents, see the monthly
What's New in Cisco Product Documentation, which also lists all new and revised Cisco technical
documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

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CH A P T E R

1

Product Overview
This chapter provides a functional overview of the Cisco Catalyst Blade Switch 3120 for HP, referred to
as the switch module. The switch module is installed in the HP c-Class BladeSystem enclosure, referred
to as the blade enclosure.
You can connect the uplink ports to other devices such as switches, routers, Cisco Wireless Access Point
workstations, Cisco IP phones, or other networking equipment. You can also connect standalone servers
or PCs to those ports.
These topics are included:
•

Switch Module Features Overview, page 1-1

•

Other Features, page 1-3

•

Management Options, page 1-8

Switch Module Features Overview
The Cisco Catalyst Blade Switch 3120 for HP is a stackable, Layer 3 switch module. The number of ports
depends on which modules are installed. See the release notes and the software configuration guide for
information about which Layer 3 features are supported. See the “Planning and Creating a Switch Stack”
section on page 2-13 for information about stacking the switch.
The Cisco Catalyst Blade Switch 3120 for HP includes a 3120G (CB3120X) and a 3120X (CBS3120X)
model. Both are stacking-capable. The initial setup procedure for both models is the same.
Note on WS-CBS3125G-S and WS-CBS3125X-S switch models:
•

The WS-CBS3125G-S is the same product as the WS-CBS3120G-S.

•

The WS-CBS3125X-S is the same product as the WS-CBS3120X-S.

The functionality and the performance of WS-CBS3125 switches are same as those of WS-CBS3120
switches. All Cisco Catalyst Blade Switch 3120/3125 for HP models are HP BladeSystem c-Class
compatible.

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Switch Module Features Overview

The CBS3120X switch module supports both the Cisco X2 transceiver modules and the Cisco TwinGig
Converter Module. The CBS3120G switch module supports only the Cisco TwinGig Converter Module.
See the “10-Gigabit Ethernet Module Slots” section on page 1-4 for more information.
For more information about the features of each model, see the hardware installation guide and the
software configuration guide for the switch module. See the release notes and the software configuration
guide for information about supported Layer 3 features.
See Table 1-1 for more detailed descriptions of the switch module ports.
Figure 1-1 shows the Cisco Catalyst Blade Switch 3120 for HP switch module.
Figure 1-1

The Catalyst Blade Switch 3120 for HP

7

1

8

3
2

9
SYST
STCK
MSTR
MMBR

UID
19-20

23x
CONS
OLE
SFP19-2
0

4

21-22
STK 1

5

SFP 21
-22

10

6

24x

12

11

STK 2

26x WS-CBS3

203651

MODE

120G-S

13
1

Switch module
1

2

UID LED

3

Health LEDs

8

LEDs for ports 19 and 20 or for the Gigabit-Ethernet slot 1

9

Gigabit Ethernet uplink ports 23 to 26 and port LEDs

10 Gigabit Ethernet ports 19 and 20 or 10-Gigabit Ethernet slot 1
2

4

System LEDs

11 LEDs for ports 21 and 22 and for the 10-Gigabit Ethernet slot 2

5

Mode button

12 Gigabit Ethernet ports 21 and 22 or 10-Gigabit Ethernet slot 2

6

Console port

13 StackWise Plus ports

7

Release latch

1. UID= unit identifier.
2. SYST, STCK, MSTR, MMBR.

Table 1-1 describes the Cisco Catalyst Blade Switch 3120 for HP ports. Each external port has an
associated LED.
Table 1-1

Cisco Catalyst Blade Switch 3120 for HP Port Descriptions

Port

Description

Ports 1 to 16

Internal Gigabit Ethernet 1000BASE-X downlink ports that connect to the
blade enclosure.

Ports 17 to 18

Internal cross-connection ports that you can use to connect to a second switch
in the blade enclosure through a backplane connector. You can configure
these ports by using the Cisco IOS CLI1. However, if the blade switches are
stacked, these ports are disabled.

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Other Features

Table 1-1

Cisco Catalyst Blade Switch 3120 for HP Port Descriptions (continued)

Port

Description

Ports 19 to 22

10-Gigabit Ethernet module slots for use with the Cisco TwinGig Converter
Modules and Cisco X2 transceiver modules.

Ports 23 to 26

External 10/100/1000BASE-T copper Gigabit Ethernet uplink ports that
support auto-MDIX and autonegotiation.

Internal 100BASE-T
Ethernet port

The Ethernet management port (Fa0) is used only for switch module
management traffic, not for data traffic. It is connected to the
Onboard Administrator through the blade enclosure backplane connector.
Traffic to and from this port is isolated from the switch ports. This port only
supports autonegotiation with 100 Mb/s and full-duplex mode.

StackWise Plus ports

Stacking cable ports.

Console port

Switch module management port (RJ-45 connector).

1. CLI: command-line interface.

The switch module is powered from the blade enclosure backplane, and temperature management is
provided by the blade enclosure. There is no fan on the switch module.
See the software configuration guide for examples showing how you might deploy the switch module in
your network.

Other Features
These sections describe other switch module features:
•

Switch Module Console Port, page 1-3

•

10/100/1000 Ports, page 1-4

•

10-Gigabit Ethernet Module Slots, page 1-4

•

LEDs, page 1-5

•

StackWise Plus Ports, page 1-8

•

Power Connectors, page 1-8

Switch Module Console Port
You can connect the switch module through its console port to a PC by using the RJ-45-to-DB9 female
cable that ships with the product. If you need a spare cable, you can order a kit (part number
ACS-DSBUASYN=) directly from Cisco. If you want to attach the switch module to any other device,
such as a terminal server, you might need a different cable. For console port and adapter pinout
information, see the “Connector and Cable Specifications” section on page B-1.

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Other Features

10/100/1000 Ports
The 10/100/1000 Ethernet ports use standard RJ-45 connectors with Ethernet pinouts. The maximum
cable length is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5,
Category 5e, or Category 6 unshielded twisted pair (UTP) cable. The 10BASE-T traffic can use
Category 3 or Category 4 UTP cable.
For more information about the 10/100/1000 Ethernet port connections and specifications, see the
Connecting to the 10/100/1000 Ports, page 2-22, and Appendix B, “Connector and Cable
Specifications.”

10-Gigabit Ethernet Module Slots
The 10-Gigabit Ethernet module slots are used for uplink connections to other switches and routers.
The module slots operate in full-duplex mode. The CBS3120X uses the hot-swappable Cisco X2
transceiver modules and the Cisco TwinGig Converter Module. The CBS3120G uses only the
Cisco TwinGig Converter Module.
These X2 transceiver modules are supported on the CBS3120X switch module:
•

CX4

•

LX4

•

SR

•

LRM

For the latest information about the supported X2 transceiver modules, see the switch release notes on
Cisco.com at this location:
http://www.cisco.com/en/US/products/ps6748/tsd_products_support_series_home.html
For more information about the 10-Gigabit Ethernet module slots, see the “Installing Devices in the
10-Gigabit Ethernet Slots” section on page 2-17. For cable specifications, see Appendix B, “Connector
and Cable Specifications.”

Cisco TwinGig Converter Module
The Cisco TwinGig Converter Module (model CVR-X2-SFP), also known as the converter module, has
two small form-factor pluggable (SFP) module slots that convert the 10-Gigabit slot into a dual
SFP module interface to establish Gigabit uplinks to network devices. The SFP modules have
LC connectors for fiber-optic connections or RJ-45 connectors for copper connections. These SFP
modules are supported:
•

1000BASE-SX

•

1000BASE-T

For more information about the SFP modules, refer to your SFP module documentation. For the latest
information about the supported SFP transceiver modules, see the switch release notes on Cisco.com at
this location:
http://www.cisco.com/en/US/products/ps6748/tsd_products_support_series_home.html
For more information about the Cisco TwinGig Converter Module, see the “Installing X2 Transceiver
Modules and Cisco Converter Modules” section on page 2-18. For cable specifications, see Appendix B,
“Connector and Cable Specifications.”

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Other Features

LEDs
You can use the switch LEDs to monitor switch module activity and performance. Graphical
representations of the LEDs described in these sections are visible in the device manager.

Note

•

System LED, page 1-5

•

Stack LED, page 1-5

•

Stack Master LED, page 1-6

•

Stack Member LED, page 1-6

•

UID and Health LEDs, page 1-6

•

RJ-45 Uplink Port LEDs, page 1-6

The System LED (SYST), stack LED (STCK), Stack Master LED (MSTR), and Stack Member LED
(MMBR) are shown as item 4 in Figure 1-1 on page 1-2.

System LED
The System LED (SYST) shows whether the system is receiving power and is functioning properly.
Table 1-2 lists the LED colors and their meanings.
Table 1-2

System LED

Color

System Status

Off

System is not powered on.

Blinking green

POST is in progress.

Solid green

System is operating normally.

Amber

System is receiving power but is not functioning properly.

Stack LED
To see the status of the StackWise Plus ports, press the Mode button. The Stack LED (STCK) is green
when the StackWise Plus ports are up and amber when the ports are down. The bottom two 10-Gigabit
Ethernet module slot LEDs show the status for StackWise Plus ports 1 and 2, respectively (see item 11
in Figure 1-1 on page 1-2).
When in stack mode, if both 10-Gigabit Ethernet uplink port LEDs are green, the stack is operating at
full bandwidth. If one or both of the 10-Gigabit uplink LEDs are not green, the stack is not operating at
full bandwidth.
See the “LED Behavior in Stack Mode” section on page 1-8 for more information.

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Other Features

Stack Master LED
The Stack Master LED (MSTR) shows the stack master status. Table 1-3 lists the LED colors and their
meanings.
Table 1-3

Stack Master LED

Color

Description

Off

Switch is not the stack master.

Green

Switch is the stack master or a standalone switch.

Amber

An error occurred during stack master election or another type of stack error occurred.

Stack Member LED
The Stack Member LED (MMBR) shows the switch stack membership number, which ranges
from 1 to 9. The Stack Member LED blinks a number of times equal to the membership number of the
switch, pauses, and then repeats the process until you turn off stack mode or until stack mode times out.
Table 1-4 lists the LED colors and their meanings when stack mode is on. When stack mode is off, the
Member LED is off.
Table 1-4

Member LED With Stack Mode On

Color

Description

Off

Pause between blinking stack membership number. Duration is 5 seconds. After
pause, LED changes to blinking green.

Blinking green

A total of n on-off cycles with n = switch stack membership number in range 1 to 9.
After n on-off cycles, blinking stops, and LED turns off.

UID and Health LEDs
The UID and Health LEDs are controlled by the blade enclosure software (Onboard Administrator). The
UID LED is on when the switch module is identified by the blade enclosure. The Health LED is green
during normal operation; it is amber when a failure is detected.

RJ-45 Uplink Port LEDs
The external 10/100/1000BASE-T copper Gigabit Ethernet uplink port LEDs display link and activity
information about each individual port. These LEDs are on the top left and right, respectively, of each
RJ-45 port (see item 9 in Figure 1-1 on page 1-2). Table 1-5 describes the port link LED colors and their
meanings.
Table 1-5

Meaning of Port Link LED Colors

LED Color

Meaning

Off

No link established.

Solid green

Link established, no activity.

Blinking green

Traffic on an established link.

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Other Features

Table 1-5

Meaning of Port Link LED Colors

LED Color

Meaning

Amber

Port disabled, either error or STP1 disabled.

Alternating Green/Amber

Link fault.

1. STP: Spanning Tree Protocol.

The port activity LED blinks green to indicate traffic.

10-Gigabit Ethernet Module Slot Port LEDs
The behavior of the 10-Gigabit Ethernet module slot port LEDs depends on whether an X2 module or a
converter module is installed and whether you pressed the Mode button to place the switch module in
stack mode.

X2 Module Installed (Only the CBS3120X Switch)
The 10-Gigabit Ethernet module slot LEDs 19 to 22 show the status for ports 19 to 20 and 21 to 22,
respectively (see items 8 and 11 in Figure 1-1 on page 1-2). When an X2 module is installed, each pair
of LEDs behaves as one. The top pair of LEDs represents the left X2 module in slot 19 to 20, and the
bottom pair of LEDs represents the right X2 module in slot 21 to 22.
Table 1-6 describes the 10-Gigabit Ethernet slot port LED colors and their meanings.
Table 1-6

Meaning of 10-Gigabit Ethernet Module Slot LED Colors

LED Color

Meaning

Off

No link established.

Solid green

Link established, no activity.

Blinking green

Activity (traffic) on an established link.

Amber

Port disabled, either error or STP disabled.

Alternating green/amber

Link fault.

Converter Module Installed
When a converter module is in one of the 10-Gigabit Ethernet module slots, the LEDs show the status
of the SFP modules that are in the converter module. If one converter module is installed in slots 19 and
20, and one converter module is installed in slots 20 and 21, this is how the LEDs correspond to the
installed SFP modules:
1.

The top LED (19) corresponds to the SFP module in slot 19.

2.

The second LED (20) corresponds to the SFP module in slot 20.

3.

The third LED (21) corresponds to the SFP module in slot 21.

4.

The fourth LED (22) corresponds to the SFP module in slot 22.

See Table 1-6 for a description of the 10-Gigabit Ethernet slot port LED colors and their meanings.

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Product Overview

Management Options

LED Behavior in Stack Mode
Whether an X2 module or a converter module is installed in the 10-Gigabit Ethernet module slots, the
two bottom LEDs (21 and 22) show the status of the StackWise Plus ports 1 and 2, respectively. The top
two LEDs (19 and 20) are off when in stack mode. Table 1-7 describes the LED colors in stack mode
and their meanings.
Table 1-7

Meaning of Port 21 and 22 LED Colors in Stack Mode

LED Color

Meaning

Solid green

Stack port is connected. If both LEDs are green, the stack is running at full speed.

Amber

Stack port is not connected.

StackWise Plus Ports
The switch module ships with a 1-meter StackWise cable that you can use to connect the StackWise Plus
ports.

Caution

Use only approved cables, and connect only to similar Cisco equipment. Equipment might be damaged
if connected to nonapproved Cisco cables or equipment.
You can order these StackWise Plus cables from your Cisco sales representative:
•

CAB-STK-E-0.5M= (0.5-meter cable)

•

CAB-STK-E-1M= (1-meter cable)

•

CAB-STK-E-3M= (3-meter cable)

Power Connectors
The blade enclosure controls power to the switch module. After the blade enclosure detects the presence
of the switch module, it moves the switch module to the full power state. The switch module software is
not involved in power control functions.

Management Options
This section describes management options for the switch module:
•

Using the Device Manager, page 1-9

•

Using the Command-Line Interface, page 1-10

•

Other Management Options, page 1-10

•

Using the Onboard Administrator CLI and GUI, page 1-10

•

Network Configurations, page 1-10

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Management Options

Using the Device Manager
The simplest way to manage the switch module is by using the device manager that is in the switch
module memory. This is a web interface that offers quick configuration and monitoring. You can access
the device manager from anywhere in your network through a web browser.
Follow these steps:
1.

Launch a web browser on your PC or workstation.

2.

Enter the switch module IP address in the web browser, and press Enter. The device manager page
appears. (See Figure 1-2.)

Figure 1-2

Device Manager Page

3.

Use the device manager to perform basic switch module configuration and monitoring. Refer to the
device manager online help for more information.

4.

For more advanced configuration, download and run the Cisco Network Assistant, which is
described in the next section.

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Management Options

Using the Command-Line Interface
The switch module CLI is based on Cisco IOS software and enhanced to support desktop-switching
features. You can fully configure and monitor the switch module from the CLI. You can access the CLI
either by connecting your management station directly to the switch module console port or by using
Telnet from a remote management station. Refer to the switch module command reference on Cisco.com
for more information.
For quick setup instructions that use the CLI, go to Appendix C, “Configuring the Switch with the
CLI-Based Setup Program.”

Using the Onboard Administrator CLI and GUI
See the HP BladeSystem enclosure setup and installation guide at
http://www.hp.com/go/bladesystem/documentation for information on how to use the Onboard
Administrator CLI and GUI.

Other Management Options
You can use SNMP management applications such as CiscoWorks Small Network Management Solution
(SNMS) to configure and manage the switch module. You also can manage it from an SNMP-compatible
workstation that is running platforms such as HP OpenView or SunNet Manager.

Network Configurations
Refer to the switch module software configuration guide on Cisco.com for an explanation of network
configuration concepts. The software configuration guide also provides examples of network
configurations that use the switch module to create dedicated network segments that are interconnected
through Gigabit Ethernet connections.

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2

Switch Installation
This chapter provides instructions on how to install your Cisco Catalyst Blade Switch 3120 for HP, also
referred to as the switch module, in the HP c-Class BladeSystem enclosure and how to set up and
configure your switch module. The HP c-Class BladeSystem, referred to as the blade enclosure, is a
system that supports up to 16 server modules and up to 8 Ethernet switch modules. The switch module
is installed in one of the enclosure I/O module bays on the rear panel of the server enclosure.
This chapter also describes how to interpret the power-on self-test (POST) that ensures proper operation
and how to make connections to the switch module.
Read the topics and perform the procedures in this order:
•

Preparing for Installation, page 2-1

•

HP c-Class BladeSystem Enclosure Architecture, page 2-5

•

Installing the Switch Module in the Blade Enclosure, page 2-6

•

Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running
Express Setup, page 2-9

•

Planning and Creating a Switch Stack, page 2-13

•

Installing Devices in the 10-Gigabit Ethernet Slots, page 2-17

•

Connecting to the 10/100/1000 Ports, page 2-22

•

Planning 10/100/1000 Ethernet Port Connections, page 2-23

•

Where to Go Next, page 2-24

Preparing for Installation
This section covers these topics:
•

Safety Warnings, page 2-2

•

Installation Guidelines, page 2-3

•

Verifying Package Contents, page 2-4

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Preparing for Installation

Safety Warnings
These safety warnings are translated into several languages in the Regulatory Compliance and Safety
Information for the Cisco Catalyst Blade Switch 3000 Series for HP that ships with the product. The
EMC regulatory statements are also included in that guide.

Warning

To prevent the switch from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of 113°F (45°C). To prevent airflow restriction, allow at least
3 inches (7.6 cm) of clearance around the ventilation openings. Statement 17B

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. Statement 43

Warning

Ethernet cables must be shielded when used in a central office environment. Statement 171

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity.
Statement 1001

Warning

Read the installation instructions before connecting the system to the power source. Statement 1004

Warning

Class 1 laser product. Statement 1008

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030

Warning

Ultimate disposal of this product should be handled according to all national laws and regulations.
Statement 1040

Warning

For connections outside the building where the equipment is installed, the following ports must be
connected through an approved network termination unit with integral circuit protection.
10/100/1000 Ethernet Statement 1044

Warning

Installation of the equipment must comply with local and national electrical codes. Statement 1074

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Preparing for Installation

Installation Guidelines
Before you install the switch module in the blade enclosure, read these guidelines:
•

Review and become familiar with the safety and handling guidelines specified in the blade enclosure
Product Information Guide.

•

Review the “Safety Warnings” section on page 2-2 and the Regulatory Compliance and Safety
Information for the Cisco Catalyst Blade Switch 3000 Series for HP that accompanies this guide.

Consider these prerequisites before installing your switch module:
•

Fill any empty interconnect bays or any empty power module bays in the blade enclosure with
blanks.

•

Identify the bays in which you will insert the switch modules. Plan to install the first switch module
in bay 1, the second in bay 2, and so on up to bay 8, if possible. The bay in which you choose to
install each switch module depends on whether mezzanine or Ethernet cards are installed in the
blade enclosure and how they are configured. See the blade enclosure documentation for more
information about installing and configuring the mezzanine or Ethernet cards.
The interconnect module bays are physically interconnected in pairs through the blade enclosure
backplane. That is, each of these pairs—bays 1 and 2, bays 3 and 4, bays 5 and 6, and bays 7 and
8—are interconnected. If you install two switch modules in one of the paired bays, they are
internally interconnected. You must configure the switch modules to logically enable the
interconnect ports, Gigabit Ethernet ports 23 and 24. See the switch module software configuration
guide for information on configuring these ports.

•

Caution

See the HP c-Class documentation for information on the port mapping between blade enclosures
and the switch modules.

To prevent electrostatic-discharge (ESD) damage when installing switch modules, follow your normal
board and component handling procedures.
When you install a switch module, you do not need to power down the server modules or the enclosure.
The initial configuration assumes that the switch module was never configured, that it is in the same state
as when it was received, and that it is not configured with a default username and password.
Be sure to observe these requirements:
•

For copper Ethernet ports, cable lengths from the switch module to connected devices can be up to
328 feet (100 meters).

•

See the documentation for the SFP module for more information about cable specifications for the
SFP module connections. Also see the “SFP Module Cable Specifications” section on page B-6.
Each port must match the wave-length specifications on the other end of the cable, and the cable
must not exceed the stipulated cable length for reliable communications.

Note

When using shorter lengths of single-mode fiber-optic cable, you might need to insert an inline
optical attenuator in the link to avoid overloading the receiver.

•

Operating environment is within the ranges listed in Appendix A, “Technical Specifications.”

•

Cabling is away from sources of electrical noise, such as radios, power lines, and fluorescent
lighting fixtures. Make sure the cabling is safely away from other devices that might damage the
cables.

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Preparing for Installation

Verifying Package Contents
Carefully remove the contents from the shipping container, and look at each item for damage. If any item
is missing or damaged, contact your Cisco representative or reseller for support. Return all packing
material to the shipping container, and save it.
These items ship with your switch module. The Cisco TwinGig Converter Modules with installed
protective dust covers are shipped already installed on your switch module.
•

Console cable

•

1-meter Stackwise Plus cable

•

Documentation CD that contains:
– Cisco Catalyst Blade Switch 3000 Series for HP Getting Started Guide
– Regulatory Compliance and Safety Information for the Cisco Catalyst Blade Switch

3000 Series for HP
– Cisco and HP Warranty Information

Note

If the switch modules are ordered with the blade enclosure, the switch modules are already installed, and
no unpacking is required. The unpacking procedure applies only if a switch module is ordered separately.

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HP c-Class BladeSystem Enclosure Architecture

HP c-Class BladeSystem Enclosure Architecture
Figure 2-1 shows the rear view of the blade enclosure in which you install the switch module.
Figure 2-1

Rear View of the Blade Enclosure

1
2

3

4

5

6

7

8

9

10

11

153140

2

1

Blade enclosure rear view

7

Interconnect module bay 5

2

Blade enclosure fans

8

Interconnect module bay 6

3

Interconnect bay 1 with switch module installed 9

Interconnect module bay 7

4

Interconnect module bay 2

10 Interconnect module bay 8

5

Interconnect module bay 3

11 Onboard Administrator module

6

Interconnect module bay 4

Consider these prerequisites before installing your switch module:
•

Plan for optimal airflow.

•

Fill any unoccupied server slot bays or power module bays with blanks.

•

Bays 1 through 8 are available for Ethernet switch modules.

•

See the server enclosure documentation for information on the port mapping between blade
enclosures and the switch modules.

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Installing the Switch Module in the Blade Enclosure

Installing the Switch Module in the Blade Enclosure
Before you install the switch module in the blade enclosure, consider these points:
•

Review and become familiar with the safety guidelines in the Regulatory Compliance and Safety
Information for the Cisco Catalyst Blade Switch 3000 Series for HP that accompanies this guide.

•

Review and become familiar with the safety guidelines in the HP BladeSystem enclosure setup and
installation guide.

•

Review and become familiar with the temperature, power, and grounding requirements specified in
the HP BladeSystem enclosure setup and installation guide.

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030

Caution

To prevent electrostatic-discharge (ESD) damage when installing switch modules, follow your normal
board and component handling procedures.
When you install a switch module, you do not need to power down the blade enclosure.
Follow these steps to install the switch module in the blade enclosure:

Step 1

If you have not already done so, touch the static-protective package that contains the switch module to
an unpainted metal part of the blade enclosure for at least 2 seconds.

Step 2

Remove the switch module from its static-protective package.

Step 3

Remove the interconnect blank from the bay where you plan to install the switch module, if one is
present, and install the switch module. (See Figure 2-2.)

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Installing the Switch Module in the Blade Enclosure

Figure 2-2

Removing the Interconnect Module Blank from the Blade Enclosure

153142

1

1
Step 4

Lever for the interconnect module blank

Ensure that the release latch on the switch module is in the open position (perpendicular to the module).
(See Figure 2-3.)
Figure 2-3

SYST
STAT
DLX
SPD

UID
MODE

WS-CB

Open the Release Latch

S-3020

CONS

-HPQ

OLE

17

MEDIA

DETECT

SFP/R-

45 PORT

S 17-20

17x
17x 21
x

20
17
19

20

20x 24
x

23x

18x

153141

18

24x

Step 5

Slide the switch module into the bay until it stops. (See Figure 2-4.)

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Installing the Switch Module in the Blade Enclosure

Figure 2-4

Installing the Switch Module into the Blade Enclosure Interconnect Module Bay

1

SYST
S-MODE

UID

S-MSTR
S-MMBR

19-20

23x

MODE
CONS
OLE
SFP19
-20

21-22
STK A
SFP 21-22

24x
STK B

250306

26x WS-CBS3120
G-S
24x

1
Step 6

Switch module release latch

Push the release latch on the front of the switch module to the closed position.

Switch Module IP Addresses
IP addresses can be assigned to two of the switch module interfaces:
•

The Fa0 Ethernet interface. This Layer 3 Ethernet interface is connected to the Onboard
Administrator through which you can manage the switch module. It is used only for switch module
management traffic, not for data traffic.

•

The VLAN 1 interface. You can manage the switch module from any of its external ports through
VLAN 1.

When you install the switch module, you need to determine whether the Onboard Administrator is
connected to a network in which a DHCP server is also connected or if the Onboard Administrator has
been configured as a DHCP server. If either of these conditions is true, the switch module automatically
obtains an IP address for its Fa0 Ethernet interface that is connected to the Onboard Administrator. In
this case, a VLAN 1 IP address is not assigned, and to set up the switch module by using the Device
Manager you must use the Fa0 interface IP address that the DHCP server assigns.
See the “Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running
Express Setup” section on page 2-9 for procedures on setting up the switch module if the IP address is
being assigned dynamically.

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Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running Express Setup

Using the Onboard Administrator to Assign an IP Address to the
Switch Module and Running Express Setup
Before you run Express Setup, you must set up your switch module to communicate with a hyperterminal
program. The initial configuration assumes that the switch module was never configured, that it is in the
same state as when it was received, and that it is not configured with a default username and password.
To set up the switch module by using the command-line interface (CLI), see the switch module hardware
installation guide on Cisco.com.
For the switch module to obtain an IP address for the Fa0 interface through the Onboard Administrator,
these conditions must be met:
•

The blade enclosure is powered on and connected to the network.

•

Basic configuration of the Onboard Administrator is completed, and you have the username and
password for the Onboard Administrator.

•

A DHCP server is configured on the network segment to which the blade enclosure is connected,
or the Onboard Administrator is configured to run as a DHCP server.

See the Onboard Administrator user guide at http://www.hp.com/go/bladesystem/documentation for
more information about configuring and using the Onboard Administrator.
After you install the switch module in the interconnect module bay, after approximately 2 minutes, the
switch module automatically obtains an IP address for its Fa0 interface through the Onboard
Administrator. This method of obtaining an IP address occurs if a DCHP server is configured on the same
network, or if the Onboard Administrator is configured as a DHCP server.
After you have installed the switch module (see the “Installing the Switch Module in the Blade
Enclosure” section on page 2-6), it powers on. The switch module begins the POST, a series of tests that
runs automatically to ensure that the switch module functions properly.
Step 1

Wait for the switch module to complete POST. It might take several minutes for the switch module to
complete POST.

Step 2

Verify that POST has completed by confirming that the system and status LEDs remain green.
If the switch module fails POST, the system LED turns amber. If the POST fails, see the “Verify the
Switch Module POST Results” section on page 3-1 to determine a course of action. POST errors are
usually fatal. Call Cisco Systems immediately if your switch module fails POST.

Step 3

Wait approximately 2 minutes for the switch module to get the software image from its flash memory
and to begin autoinstallation.
If you already have the Onboard Administrator open through a browser window, go to Step 5.

Step 4

Using a PC that is connected to the same network segment as the blade enclosure Onboard
Administrator, access the Onboard Administrator in a browser window. Enter your assigned user name
and password.

Step 5

Choose Enclosure Information > Interconnect Bays to open the Interconnect Bay Summary window
where you can find the assigned IP address of the switch module Fa0 interface in the Management URL
column. (See Figure 2-5.)

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Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running Express Setup

Figure 2-5

Onboard Administrator Interconnect Bay Summary Window

Step 6

Click the IP address hyperlink for the switch module from the Management URL column to open a new
browser window.

Step 7

On the left side of the Onboard Administrator, choose Configuration > Express Setup.
The Express Setup page appears (see Figure 2-6). (Close or minimize the Device Manager Help
window.)
Figure 2-6

Step 8

Express Setup Page

Go to “Using Express Setup” section on page 2-11 to finish setting up the switch module.

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Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running Express Setup

Using Express Setup
Before you complete the setup program, obtain the default gateway IP address and the switch password
from your system administrator. You can use Express Setup to configure these optional parameters
through the Express Setup program:
•

Telnet access password

•

Names of the SNMP read and write community strings if you are going to use a
network-management program like CiscoWorks.

•

Host name, system contact, and system location

•

System time, time zone, Daylight Savings Time enable

Follow these steps to finish setting up the switch module. The Onboard Administrator assigns an
IP address and a subnet mask to the management interface (VLAN ID) and to the Ethernet
management port.
Step 1

Enter this information in the Network Settings fields.
•

In the Default Gateway field, enter the IP address for the default gateway (router).

•

In the Switch Password field, enter your password. The password can be from 1 to 25 alphanumeric
characters, can start with a number, is case sensitive, allows embedded spaces, but does not allow
spaces at the beginning or end.
In the Confirm Switch Password field, enter your password again.

You can enter the Optional Settings information now or enter it later by using the device manager
interface. Some of these settings are on the Advanced Settings tab (see Figure 2-7).
Figure 2-7

Express Setup Advanced Settings Table

Step 2

In the Host Name field, enter a name for the switch module. The host name is limited to 31 characters;
embedded spaces are not allowed.

Step 3

In the System Date and System Time fields, enter the current date and time, or use the down arrows to
select them.

Step 4

In the Time Zone field, use the down arrow to choose your time zone.

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Using the Onboard Administrator to Assign an IP Address to the Switch Module and Running Express Setup

Step 5

Click Enable in the Daylight Savings Time field to enable this feature.

Step 6

In the Telnet Access field, click Enable if you are going to use Telnet to manage the switch module by
using the CLI. If you enable Telnet access, you must enter a Telnet password.

Note

If you plan to create a switch stack, enable Telnet access so that you can use the CLI to set this
switch to the highest priority. See the “Planning and Creating a Switch Stack” section on
page 2-13 for more information about creating a switch stack.

Step 7

In the Telnet Password field, enter a password. The Telnet password can be from 1 to 25 alphanumeric
characters, is case sensitive, allows embedded spaces, but does not allow spaces at the beginning or end.
In the Confirm Telnet Password field, re-enter the Telnet password.

Step 8

In the SNMP field, click Enable to enable Simple Network Management Protocol (SNMP). Enable
SNMP only if you plan to manage switches by using CiscoWorks 2000 or another SNMP-based
network-management system.

Step 9

If you enable SNMP, you must enter a community string in the SNMP Read Community field, the
SNMP Write Community field, or both. SNMP community strings authenticate access to MIB objects.
Embedded spaces are not allowed in SNMP community strings. When you set the SNMP read
community, you can access SNMP information, but you cannot modify it. When you set the SNMP write
community, you can both access and modify SNMP information.

Step 10

In the System Contact field, enter the name of the person who is responsible for the switch module. In
the System Location field, enter the wiring closet, floor, or building where the switch module is located.

Step 11

Click Submit to save your settings, or click Cancel to clear your settings.
You can close this window.

To install additional switch modules, repeat the steps in the “Installing the Switch Module in the Blade
Enclosure” section on page 2-6 through the “Using the Onboard Administrator to Assign an IP Address
to the Switch Module and Running Express Setup” section on page 2-9.

Setting the Installed Switch Module As the Stack Master
If you plan to create a switch stack, we recommend that you set the switch module that you first
configured as the stack master. To do this, you must assign the highest priority value to this switch
module. To assign a priority value after you have installed and initially configured the first switch
module, follow these steps:
Step 1

Launch a Telnet session by connecting directly to the switch through its console port, or by using the
Onboard Administrator:
On the left side of the Onboard Administrator, click + next to Interconnect Bays to expand it, then click
+ next to the name of the switch you want to set as the switch master. Click Management Console to
open the device manager for the switch, and if prompted, enter the user name and password for the
switch. Under Contents, choose Maintenance > Telnet.

Step 2

Enter enable.

Step 3

Enter configure terminal.

Step 4

Enter switch 1 priority 15.

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Planning and Creating a Switch Stack

Step 5

At the prompt, press Return.

Step 6

Enter end.

Step 7

Enter copy running-configuration startup-configuration to save this setting.

Step 8

At the prompt, press Return.

Step 9

To verify that this switch is set as the switch master, enter the show switch user EXEC command.

For more information about creating switch stacks, see the “Planning and Creating a Switch Stack”
section on page 2-13.

Refreshing the PC IP Address
After you complete Express Setup, you should refresh the PC IP address:
•

For a dynamically assigned IP address, disconnect the PC from the switch module, and reconnect
the PC to the network. The network DHCP server assigns a new IP address to the PC.

•

For a statically assigned IP address, change it to the previously configured IP address.

Planning and Creating a Switch Stack
A switch stack is a set of up to nine stacking-capable switch modules that are connected through their
StackWise Plus ports. One of the switches controls the operation of the stack and is called the stack
master. The stack master and the other switches in the stack are stack members. Layer 2 and Layer 3
protocols present the entire switch stack as a single entity to the network. Stacking is optional.
When switch modules are not stacked, each acts as a standalone switch. For general concepts and
procedures to manage switch stacks, see the switch module software configuration guide and command
reference on Cisco.com.

Caution

The Cisco Catalyst Blade Switch 3120 for HP does not support switch stacks with other types of blade
switches as members. Combining the Cisco Catalyst Blade Switch 3120 for HP with other types of blade
switches in a switch stack might cause the switch to work improperly or to fail.
Before you connect the switch modules in a stack, keep in mind these stacking guidelines:
•

You should install the stack master switch module and run the initial setup program on that switch
module before you connect the StackWise Plus cables to other stack members. We recommend that
you assign the highest priority value to the switch module that you prefer to be the stack master. This
ensures that the switch is re-elected as stack master if a re-election occurs. As you add new switch
modules to the stack, they automatically become stack members.
To assign a priority value through the Onboard Administrator after you have installed and initially
configured the first switch module, see the “Setting the Installed Switch Module As the Stack
Master” section on page 2-12.

•

When you connect the StackWise Plus cables and create a stack, you can communicate with the
master switch internal Ethernet management port (Fa0) port, but not the Fa0 ports of the member
switches. Only one Fa0 interface can be active, and that interface is the one on the active stack
master.

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Planning and Creating a Switch Stack

•

For conditions that might cause a stack master re-election or to manually elect the stack master, see
the “Managing Switch Stacks” chapter in the switch module software configuration guide on
Cisco.com.

•

You can stack any combination of up to nine Catalyst 3120G and 3120X switches. You can stack
only the Cisco Catalyst Blade Switch 3120 for HP switch modules; other switches are not supported.

•

Before installation, verify the StackWise Plus cable length. Depending on your configuration, you
might need different sized cables. The 1-meter cable is suppled if you do not specify the length of
the StackWise Plus cable when you order your product. If you need the 0.5-meter cable or the
3-meter cable, you can order these StackWise Plus cables from your Cisco sales representative:
– CAB-STK-E-0.5M= (0.5-meter cable)
– CAB-STK-E-1M= (1-meter cable)
– CAB-STK-E-3M= (3-meter cable)

For switch module dimensions, StackWise Plus cable part numbers, and additional stacking guidelines,
see the switch module hardware installation guide on Cisco.com. For concepts and procedures to manage
switch stacks, see the switch module software configuration guide and the stack compatibility guide also
on Cisco.com.
To create a switch stack:
•

Install the member switch modules if you have not already done so.

•

Connect the StackWise Plus cables as described in the “Planning and Creating a Switch Stack”
section on page 2-13.

•

Configure the member switch modules through the master switch by using the CLI.

Stack Cabling Configurations
This section describes the recommended configurations for stacking the switches by using the supplied
1-meter StackWise Plus cable.
Figure 2-8 is an example of a recommended configuration in which two switch modules create a switch
stack in a single blade enclosure.
Stacking Two Switch Modules in a Single Blade Enclosure to Create One Stack

250303

Figure 2-8

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Planning and Creating a Switch Stack

Figure 2-9 is an example of a recommended configuration in which eight switch modules create a switch
stack in four blade enclosures.
Stacking Eight Switch Modules in Four Blade Enclosures to Create One Stack

250304

Figure 2-9

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Switch Installation

Planning and Creating a Switch Stack

Figure 2-10 is an example of a recommended configuration in which eight switch modules create two
separate switch stacks in four blade enclosures. This configuration provides redundant connections.
Stacking up to Eight Switch Modules in Four Blade Enclosures to Create Two Stacks

250305

Figure 2-10

Connecting to the StackWise Plus Ports
Before you connect the StackWise Plus cables, review the “Planning and Creating a Switch Stack”
section on page 2-13. Always use a Cisco-approved StackWise Plus cable to connect the switches.
Follow these steps to connect the StackWise Plus cable to the StackWise Plus ports:
Step 1

Remove the dust covers from the StackWise Plus cables and StackWise Plus ports, and store them for
future use.

Step 2

Use the window in the StackWise Plus cable to align the connector correctly. Insert the cable into the
StackWise Plus port on the front of the switch module (Figure 2-11). Use a ratcheting torque screwdriver
to tighten the retainer screws to 5 lbf-in. (80 ozf-in.).

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Switch Installation
Installing Devices in the 10-Gigabit Ethernet Slots

Insert the other end of the cable into the connector of the other switch module, and tighten the retainer
screws to 5 lbf-in. (80 ozf-in.). Be careful not to overtighten the screws.
Figure 2-11

SYST
S-MODE
S-MSTR
S-MMBR

Inserting the StackWise Plus Cable in a StackWise Plus Port

UID
19-20
MODE

23x
CONS
OLE
SFP19-2
0

21-22
STK A
SFP 21

-22

24x

STK B

26x WS-CBS3

250302

Step 3

120G-S

Caution

Removing and installing the StackWise Plus cable can shorten its useful life. Do not remove
and insert the cable more often than is absolutely necessary.

When you need to remove the StackWise Plus cable from the connector, make sure to fully unscrew the
correct screws before removing the connector. When the connectors are not being used, replace the dust
covers to protect them from dust.

Installing Devices in the 10-Gigabit Ethernet Slots
These sections describe how to install and remove X2 transceiver modules, Cisco TwinGig Converter
Modules (also known as converter modules), and SFP modules:
•

Installing X2 Transceiver Modules and Cisco Converter Modules, page 2-18

•

Installing SFP Modules, page 2-20

Caution

Do not remove the dust plugs from the fiber-optic X2 transceiver modules or SFP modules or the rubber
caps from the fiber-optic cable until you are ready to connect the cable. The plugs and caps protect the
module ports and cables from contamination and ambient light.

Caution

Do not install or remove an X2 or SFP module with the cables attached because of the potential damage
to the cables, the cable connectors, or the optical interfaces in the modules. Disconnect all cables before
removing or installing the module.

Caution

Removing and installing an X2 or SFP module can shorten its useful life. Do not remove and insert any
X2 or SFP module more often than is absolutely necessary.

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Switch Installation

Installing Devices in the 10-Gigabit Ethernet Slots

Caution

To prevent ESD damage, follow your normal board and component handling procedures when
connecting cables to the switch and other devices.

Installing X2 Transceiver Modules and Cisco Converter Modules
These sections describe how to install and remove X2 transceiver modules and the converter modules in
the switch module 10-Gigabit Ethernet module slots.

Note

Do not remove the dust cover from the converter module until you are ready to install an X2 transceiver
or SFP modules. A module or dust cover must be installed in the slot at all times.
Use only Cisco X2 transceiver modules and Cisco TwinGig Converter Modules with the switch module.
Each Cisco transceiver and converter module has an internal serial EEPROM that is encoded with
security information. This encoding provides a way for Cisco to identify and validate that the module
meets the requirements for the switch.
For more information about installing, removing, cabling, and troubleshooting X2 transceiver modules,
see the module documentation that shipped with your device. For module cable specifications, see
Appendix B, “Connector and Cable Specifications.”

Installing a Transceiver or Converter Module
When you install or remove the converter module, the mode on the switch changes from 10-Gigabit
Ethernet to Gigabit Ethernet or the reverse. During this mode change, data traffic on the other switch
module uplink ports (X2 transceiver or SFP module ports) might temporarily stop. When you install or
remove an X2 transceiver or SFP module, traffic delay does not occur.
To insert an X2 transceiver module or a converter module, follow these steps:
Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.

Step 2

Remove the transceiver or converter module from its protective packaging.

Step 3

Align the transceiver module in the module slot (Figure 2-12 and Figure 2-13).

Caution

Step 4

Verify the correct orientation of your module before inserting it into the slot. Incorrect insertion can
damage the module.
Slide the transceiver or converter module into the opening until the back of its faceplate is flush with the
switch module faceplate.

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Installing Devices in the 10-Gigabit Ethernet Slots

Figure 2-12

UID
19-20
MODE

23x
CONS
OLE
SFP19-2
0

21-22
STK A
SFP 21

-22

24x

STK B

26x WS-CBS3

250299

SYST
S-MODE
S-MSTR
S-MMBR

Installing X2 Transceiver Modules

120G-S

Do not install the converter module with SFP modules or cables installed. Always remove any cables and
modules before installing the converter module in the slot.
Figure 2-13

SYST
S-MODE
S-MSTR
S-MMBR

Installing Converter Modules

UID
19-20
MODE

23x
CONS
OLE
SFP19-2
0

21-22
STK A
SFP 21

-22

24x

STK B

26x WS-CBS3

250300

Caution

120G-S

Removing a Module
To remove an X2 transceiver module or a converter module, follow these steps:
Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.

Step 2

For X2 transceiver modules, disconnect the cables from the module. For fiber-optic modules, install the
optical bore dust plugs.

Step 3

For converter modules, disconnect the cables from the SFP module. Remove the SFP modules from the
converter module.

Caution

Do not remove the converter module with SFP modules or cables installed. Always remove any cables
and modules before removing the converter module from the slot.

Step 4

Carefully pull on the X2 module sleeve, or pinch the tabs on the converter module to disengage it from
the slot. Grasp the edges of the module, and carefully slide it out of the slot.

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Installing Devices in the 10-Gigabit Ethernet Slots

Step 5

Caution
Step 6

Reinstall the dust cover in the 10-Gigabit Ethernet slot.

The dust covers should always remain in place unless a module is installed in the slot.
Place the module in an antistatic bag or other protective environment.

Installing SFP Modules
This section describes how to install and remove SFP modules in the 10-Gigabit Ethernet slots. To use
SFP modules in the switch, you must have a converter module installed in a 10-Gigabit Ethernet slot.

Caution

To avoid damage to the converter module, first install the converter module in the switch 10-Gigabit
Ethernet slot before installing the SFP modules.
See the switch module release notes on Cisco.com for the list of SFP modules that the switch module
supports. Use only Cisco SFP modules on the switch. Each Cisco module has an internal serial EEPROM
that is encoded with security information. This encoding provides a way for Cisco to identify and
validate that the SFP module meets the requirements for the switch.
For more information about installing, removing, cabling, and troubleshooting SFP modules, see the
module documentation that shipped with your device. For module cable specifications, see Appendix B,
“Connector and Cable Specifications.”

Installing an SFP Module
To insert an SFP module into a converter module slot, follow these steps:
Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.

Step 2

Remove the Cisco TwinGig Converter Module dust cover and save.

Note

The dust cover is an integral part of the airflow function. If you remove the SFP module, you must
replace it with the saved dust cover.

Step 3

Install the converter module in the 10-Gigabit Ethernet module slot as described in “Installing a
Transceiver or Converter Module” section on page 2-18.

Step 4

Find the send (TX) and receive (RX) markings that identify the top side of the SFP module.
On some SFP modules, the send and receive (TX and RX) markings might be replaced by arrows that
show the direction of the connection, either send or receive (TX or RX).

Step 5

If the SFP module has a bale-clasp latch, move it to the open, unlocked position.

Step 6

Align the SFP module in the converter module opening. When installing a module in the upper module
slot (slot 1), position the SFP module face up. When using the lower module slot (slot 2), position the
SFP module face down.

Step 7

Slide the SFP module into the opening until you feel the connector on the module snap into place
(Figure 2-14).

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Installing Devices in the 10-Gigabit Ethernet Slots

Step 8

If the module has a bale-clasp latch, close it to lock the SFP module in place.

Step 9

Remove the SFP dust plugs and save. Install the SFP cables.
Figure 2-14

Converter Module with SFP Modules Installed

2

1

2
1

UID

S-MSTR
S-MMBR

19-20
MODE

23x
CONS

OLE
SFP19

3

1
2

4

3

-20

21-22

Converter modules
SFP modules

SFP 21

-22

4

1

3

24x

4

3

250301

SYST
S-MODE

4

3

Send (TX) optical bore

4

Receive (RX) optical bore

1. Lower SFP modules are inverted.

Removing an SFP Module
To remove an SFP module from a module slot, follow these steps:
Step 1

Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface.

Step 2

Disconnect the cable from the SFP module. For reattachment, note which cable connector plug is send
(TX) and which is receive (RX).

Step 3

Insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.

Step 4

If the module has a bale-clasp latch, pull the bale out and down to eject the module. If the bale-clasp
latch is obstructed and you cannot use your index finger to open it, use a small, flat-blade screwdriver
or other long, narrow instrument to open the bale-clasp latch.

Step 5

Grasp the SFP module, and carefully remove it from the module slot.

Step 6

Place the removed SFP module in an antistatic bag or other protective environment.

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Switch Installation

Connecting to the 10/100/1000 Ports

Connecting to the 10/100/1000 Ports
The switch module 10/100/1000 ports configure themselves to operate at the speed of attached devices.
If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex
parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters
manually set can reduce performance or result in no linkage.
To maximize performance, choose one of these methods for configuring the Ethernet ports:
•

Let the ports autonegotiate both speed and duplex.

•

Set the port speed and duplex parameters on both ends of the connection.

Follow these steps to connect to 10BASE-T, 100BASE-TX or 1000BASE-T devices:

Caution

To prevent electrostatic-discharge (ESD) damage, follow your normal board and component handling
procedures.

Step 1

When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through
cable to an RJ-45 connector on the front panel. (See Figure 2-15.) When connecting to switches or
repeaters, use a crossover cable. (See the “Cable and Adapter Specifications” section on page B-4 for
cable-pinout descriptions.)
Figure 2-15

SYST
STAT
DLX
SPD

UID
MODE

WS-CB

Connecting to an Ethernet Port

S-3020

CONS

-HPQ

OLE

17

MEDIA

DETECT

SFP/R-

45 PORT

S 17-20

17x
17x 21
x

20
17
19

20

20x 24
x

23x

18x

153386

18

24x

Note

When connecting to 1000BASE-T-compatible devices, be sure to use a twisted four-pair,
Category 5 cable.

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Switch Installation
Planning 10/100/1000 Ethernet Port Connections

Note

You can use the mdix auto interface configuration command in the CLI to enable the automatic
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch module detects the required cable type for copper Ethernet connections and configures the
interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 module port on the switch module, regardless of the type of device
on the other end of the connection.
The auto-MDIX feature is enabled by default.

Step 2

Connect the other end of the cable to an RJ-45 connector on the other device. The port LED turns on
when both the switch module and the connected device have established link.
The port LED is amber while Spanning Tree Protocol (STP) discovers the topology and searches for
loops. This takes about 30 seconds, and then the port LED turns green. If the port LED does not turn on,
the device at the other end might not be turned on, or there might be a cable problem or a problem with
the adapter installed in the attached device. See Chapter 3, “Troubleshooting,” for solutions to cabling
problems.

Step 3

Reconfigure and reboot the connected device if necessary.

Step 4

Repeat Steps 1 through 3 to connect each device.

Planning 10/100/1000 Ethernet Port Connections
The 10/100/1000 Ethernet ports use standard RJ-45 connectors with Ethernet pinouts. The maximum
cable length is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5,
Category 5e, or Category 6 UTP cable. The 10BASE-T traffic can use Category 3 or Category 4 cable.
The autonegotiation feature is enabled by default on the switch. At this setting, the switch ports
configure themselves to operate at the speed of attached device. If the attached device does not support
autonegotiation, you can explicitly set the switch port speed and duplex parameters. To maximize
performance, either let the ports autonegotiate both speed and duplex, or set the port speed and duplex
parameters on both ends of the connection.
For simplified cabling, the automatic medium-dependent interface crossover (auto-MDIX) feature is
enabled by default on the switch. With auto-MDIX enabled, the switch detects the required cable type
for copper Ethernet connections and configures the interface accordingly. Therefore, you can use either
a crossover or a straight-through cable for connections to a switch 10/100/1000 Ethernet port regardless
of the type of device on the other end of the connection.
See the switch software configuration guide or the switch command reference on Cisco.com for more
information about enabling or disabling autonegotiation and auto-MDIX.
If auto-MDIX is disabled, use the guidelines in Table 2-1 to select the correct cable for connecting the
switch 10/100/1000 Ethernet ports to other devices. See the “Cable and Adapter Specifications” section
on page B-4 for cable-pinout descriptions.

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Switch Installation

Where to Go Next

Table 2-1

Recommended Ethernet Cables (When Auto-MDIX is Disabled)

Device

Crossover Cable1

Straight-Through Cable1

Switch to switch

Yes

No

Switch to hub

Yes

No

Switch to computer or server

No

Yes

Switch to router

No

Yes

Switch to IP phone

No

Yes

1. 100BASE-TX and 1000BASE-T traffic requires twisted four-pair, Category 5, Category 5e, or
Category 6 cable. 10BASE-T traffic can use Category 3 or Category 4 cable.

Where to Go Next
If the default configuration is satisfactory, the switch module does not need further configuration. You
can use any of these management options to change the default configuration:
•

Using the Device Manager
Access the device manager through a web browser from anywhere in your network. Follow
these steps:
a. Launch a web browser on your PC or workstation.
b. Enter the switch module IP address in the web browser, and press Enter. The device manager

page appears.
c. Use the device manager to perform basic switch module configuration and monitoring. Refer to

the device manager online help for more information.
•

Using the CLI
The switch module CLI is based on Cisco IOS software and enhanced to support desktop-switching
features. You can fully configure and monitor the switch module from the CLI. You can access the
CLI either by connecting your management station directly to the switch module console port or by
using Telnet from a remote management station. Refer to the switch module command reference on
Cisco.com for more information.

•

Using SNMP
You can use SNMP management applications such as CiscoWorks Small Network Management
Solution (SNMS) to configure and manage the switch module. You also can manage it from an
SNMP-compatible workstation that is running platforms such as HP OpenView or SunNet Manager.

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Switch Installation
Where to Go Next

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CH A P T E R

3

Troubleshooting
This chapter describes these topics for troubleshooting problems:
•

Diagnosing Problems, page 3-1

•

Clearing the Switch Module IP Address and Configuration, page 3-5

•

Replacing a Failed Stack Member, page 3-5

•

Locating the Switch Module Serial Number, page 3-6

Diagnosing Problems
The LEDs on the switch module front panel provide troubleshooting information. They show power-on
self-test (POST) failures, port-connectivity problems, and overall switch module performance. You can
also get statistics from the CLI or from an SNMP workstation. See the software configuration guide and
the switch command reference on Cisco.com or the documentation that came with your SNMP
application for more information.
This section includes these troubleshooting topics:
•

Verify the Switch Module POST Results, page 3-1

•

Look at the Switch Module LEDs, page 3-2

•

Confirm the Switch Module Connections, page 3-2

•

Verify the Switch Module Performance, page 3-4

Verify the Switch Module POST Results
As the switch module powers on, it begins the POST, a series of tests that runs automatically to ensure
that the switch functions properly. It might take several minutes for the switch to complete POST.
When the switch begins POST, the system LED slowly blinks green. When POST completes, the system
LED blinks amber. If POST fails, the system LED remains amber. If POST completes successfully, the
system LED rapidly blinks green.

Note

POST failures are usually fatal. Contact your Cisco technical support representative if your switch does
not pass POST.

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Troubleshooting
Diagnosing Problems

Look at the Switch Module LEDs
You must have physical access to the switch module to do this. Look at the port LEDs for troubleshooting
information about the switch module. See the “LEDs” section on page 1-5 for a description of the LED
colors and their meanings.

Confirm the Switch Module Connections
Review this section when troubleshooting switch module connectivity problems.

Bad or Damaged Cable
Always test the cable for marginal damage or failure. A cable might be sufficient to connect at the
physical layer but then cause packet corruption because of subtle damage to its wiring or connectors.
You can identify this situation because the port will have many packet errors, or the port will constantly
lose and regain link. In these situations:
•

Exchange the copper or fiber-optic cable with a known, good cable.

•

Look for broken or missing pins on cable connectors.

•

Rule out any insufficient patch panel connections or media convertors between the source and the
destination. If possible, bypass the patch panel or eliminate faulty media convertors, such as
fiber-optic-to-copper convertors.

•

Try using the cable in another port or interface to see if the problem also exists there.

Ethernet and Fiber Cables
Make sure that you have the correct cable type for the connection:
•

For Ethernet, use Category 3 copper cable for 10 Mb/s unshielded twisted pair (UTP) connections.
Use either Category 5, Category 5e, or Category 6 UTP for 10/100 or 10/100/1000 Mb/s
connections.

•

For fiber-optic connectors, verify that you have the correct cable for the distance and port type.
Make sure that the ports on the connected device match and that they use the same type of encoding,
optical frequency, and fiber type. For more information about cabling, see Appendix B, “Connector
and Cable Specifications.”

•

For copper connections, determine if a crossover cable was used when a straight-through cable was
required, or the reverse. Enable auto-MDIX on the switch module, or replace the cable.

Link Status
Verify that both sides have link. A single broken wire or one shutdown port can cause one side to show
link, but the other side does not have link.
A link LED does not guarantee that the cable is fully functional. The cable might have encountered
physical stress that causes it to function at a marginal level. If the link light for the port does not come on:
•

Connect the cable from the switch module to a known, good device.

•

Make sure that both ends of the cable are connected to the correct ports.

•

Verify that both devices have power.

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Troubleshooting

Diagnosing Problems

•

Verify that you are using the correct cable type. See Appendix B, “Connector and Cable
Specifications,” for more information.

•

Test for loose connections. Sometimes a cable appears to be seated, but is not. Disconnect and then
reconnect the cable.

SFP Module Port Issues
Use only Cisco small form-factor pluggable (SFP) modules on the switch module. Each Cisco module
has an internal serial EEPROM that is encoded with security information. This encoding provides a way
for Cisco to identify and validate that the module meets the requirements for the switch module. Test
these items:
•

Bad or wrong SFP module. Exchange the suspect module with a known, good module. Verify that
this module supports this platform. See the “Cisco TwinGig Converter Module” section on page 1-4
for a list of supported SFP modules.

•

Use the show interfaces privileged EXEC command to determine the port or module error-disabled,
disabled, or shutdown status. Re-enable the port if necessary.

•

Make sure that all fiber-optic connections are properly cleaned and securely connected.

Port and Interface Settings
Verify that the port or interface is not disabled or for some reason powered down. If a port or interface
is manually shut down on one or the other side of the link, the link does not come up until you re-enable
the port. Use the show interfaces privileged EXEC command to determine the port or interface
error-disabled, disabled, or shutdown status on both sides of the connection. If necessary, re-enable the
port or the interface.

Ping the End Device
Test the end device by pinging it from the directly connected switch module first, and then work your
way back port by port, interface by interface, trunk by trunk, until you find the source of the connectivity
issue. Make sure that each switch module can identify the end device MAC address in its
Content-Addressable Memory (CAM) table.

Spanning Tree Loops
Spanning Tree Protocol (STP) loops can cause serious performance issues that might appear to be port
or interface problems. In this situation, the switch module bandwidth is used repeatedly by the same
frames, crowding out legitimate traffic.
A unidirectional link can cause loops. This occurs when the traffic that the switch module sends is
received by its neighbor, but the switch module does not receive the traffic that is sent from the neighbor.
A broken fiber-optic cable, other cabling, or a port issue could cause this one-way communication.
You can enable the UniDirectional Link Detection (UDLD) protocol on the switch module to help
identify difficult-to-find unidirectional link problems. UDLD supports a normal mode of operation (the
default) and an aggressive mode. In normal mode, UDLD detects unidirectional links because of
incorrectly connected interfaces on fiber-optic connections. In aggressive mode, UDLD also detects
unidirectional links caused by one-way traffic on fiber-optic and twisted-pair links and by incorrectly
connected interfaces on fiber-optic links. For information about enabling UDLD on the switch module,
see the “Understanding UDLD” section in the software configuration guide.

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Troubleshooting
Diagnosing Problems

Verify the Switch Module Performance
Review this section when you troubleshoot switch module performance problems.

Speed, Duplex, and Autonegotiation
If the port statistics show a large number of alignment errors, frame check sequence (FCS), or
late-collisions errors, a speed or duplex mismatch might be the problem.
A common issue with speed and duplex occurs when the duplex settings are mismatched between two
switches, between a switch module and a router, or between the switch module and a workstation or
server. This can happen when you manually set the speed and duplex or because of autonegotiation
issues between the two devices.
These circumstances can result in a mismatch:
•

A manually set speed or duplex parameter is different from the manually set speed or duplex
parameter on the connected port.

•

A port is set to autonegotiate, and the connected port is set to full duplex with no autonegotiation.

To maximize switch module performance and ensure a link, follow one of these guidelines when you set
or change the settings for duplex and speed:
•

Let both ports autonegotiate both speed and duplex.

•

Manually set the speed and duplex parameters for the ports on both ends of the connection.

•

If a remote device does not autonegotiate, configure the duplex settings on the two ports to match.
The speed parameter can adjust itself even if the connected port does not autonegotiate.

Autonegotiation and Network-Interface Cards
Problems sometimes occur between the switch module and third-party network-interface cards (NICs).
By default, the switch module ports and interfaces are set to autonegotiate. It is common for devices such
as laptop computers or other devices to also be set to autonegotiate, yet sometimes autonegotiation issues
occur.
To troubleshoot autonegotiation problems, try manually setting both sides of the connection. If this does
not solve the problem, the firmware or software on your NIC might be causing the problem. Upgrade the
NIC driver to the latest version available from the manufacturer.

Cabling Distance
If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance
from the switch module to the connected device meets the recommended guidelines. See the “Cable and
Adapter Specifications” section on page B-4 for cabling guidelines.

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Troubleshooting

Clearing the Switch Module IP Address and Configuration

Clearing the Switch Module IP Address and Configuration
This section describes how to reset the switch module by rerunning the initial configuration dialog
(system configuration dialog). These are reasons why you might want to reset the switch module:

Caution

•

You installed the switch module in your network and cannot connect to it because you assigned the
wrong IP address.

•

You want to clear all the configuration settings from the switch module and assign a new IP address.

This procedure clears the IP address and all configuration information stored on the switch module. Do
not follow this procedure unless you want to completely reconfigure the switch module.
To reset the switch module:
1.

At the switch module prompt, enter enable, and press Return or Enter.

2.

At the Privileged EXEC prompt, switch module#, enter setup and press Return or Enter.

The switch module displays the prompt to run the initial configuration dialog. The switch module now
behaves like an unconfigured switch module. You can configure the switch module by using the CLI
setup procedure described in Appendix C, “Configuring the Switch with the CLI-Based Setup Program”

Replacing a Failed Stack Member
If you need to replace a failed stack member, you can hot swap or replace the switch module by following
this procedure:
1.

Get a replacement switch module that has the same model number as the failed switch module.

2.

Power down the failed switch module through the Onboard Administrator.

3.

Install the replacement switch module in the server chassis.
If you manually set the member numbers for any members in the stack, you need to manually assign
the replacement switch module with the same member number as the failed switch module.
To manually assign the member number, install the replacement switch module, and wait for it to
boot up. Use the CLI to manually assign the member number (see the software configuration guide
for instructions) before you connect the switch module to the stack.

4.

Connect the switch to the stack.

5.

Make the same Gigabit Ethernet connections on the replacement switch module that were on the
failed switch module.

6.

Reinstall any transceiver modules and cable connections.

7.

Power on the replacement switch through the Onboard Administrator.

The replacement switch module will have the same configuration for all the interfaces as the failed
switch module and will function the same as the failed switch module.

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Chapter 3

Troubleshooting
Locating the Switch Module Serial Number

Locating the Switch Module Serial Number
If you contact Cisco Technical Assistance, you need to know the serial number of your switch module.
Figure 3-1 shows the serial number location on your switch module. You can also use the show version
command to get the serial number.
Figure 3-1

Serial Number Location

250310

SN: XXXNNNNXXXX

CISCO
PID/
VID

:

MA C

ADDR
ESS

CISCO
SERI
AL NU
M
IOS VER
SION

BER:

CLEI
CODE

HP Par
t

No. :
410916
-B21

Cisco
Systems

, Inc.

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Chapter 3

Troubleshooting

Locating the Switch Module Serial Number

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A P P E N D I X

A

Technical Specifications
This appendix lists the switch module technical specifications in Table A-1.
Table A-1

Technical Specifications for the Cisco Catalyst Blade Switch 3120 for HP

Environmental Ranges
Operating temperature

32 to 109°F (0 to 43°C)

Storage temperature

–4 to 158°F (–20 to 70°C)

Relative humidity

10 to 85% (noncondensing)

Storage relative humidity 5 to 95% (noncondensing)
Operating altitude

Up to 10,000 feet (3048 meters)

Storage altitude

Up to 30,000 feet (4572 meters)

Physical Dimensions
Weight

2.8 lbs (1.27 kg)

Dimensions (H x D x W)

1.1 x 7.6 x 10.76 in. (2.8 x 19.3 x 27.3 cm)

See the Regulatory Compliance and Safety Information for the Cisco Catalyst Blade Switch 3000 Series
for HP for information about safety compliance and electromagnetic compatibility.

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Appendix A

Technical Specifications

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A P P E N D I X

B

Connector and Cable Specifications
This appendix describes the cables and adapters that you use to connect that you use to connect the
switch module to other devices. This appendix includes these sections:
•

Connector Specifications, page B-1

•

Cable and Adapter Specifications, page B-4

Connector Specifications
These sections describe the connectors used with the switch:
•

10/100/1000 Ports, page B-1

•

10-Gigabit Ethernet Module Interfaces, page B-3

•

Cisco TwinGig Converter Module Ports, page B-3

•

Console Port, page B-4

10/100/1000 Ports
The 10/100/1000 Ethernet ports on the switch module use standard RJ-45 connectors. Figure B-1 shows
the pinout.

Note

You can use the mdix auto interface configuration command in the CLI to enable the automatic
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch module detects the required cable type for copper Ethernet connections and configures the
interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the switch module, regardless
of the type of device on the other end of the connection.
For configuration information for this feature, refer to the switch module software configuration guide
or the switch module command reference.

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Appendix B

Connector and Cable Specifications

Connector Specifications

Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as servers,
workstations, and routers, you can use a two or four twisted-pair, straight-through cable wired for
10BASE-T and 100BASE-TX. Figure B-6 shows the two twisted-pair, straight-through cable
schematics. Figure B-8 shows the four twisted-pair, straight-through cable schematics.
When connecting the ports to 10BASE-T- and 100BASE-TX-compatible devices, such as switches or
repeaters, you can use a two or four twisted-pair, crossover cable. Figure B-7 shows the two twisted-pair,
crossover cable schematics. Figure B-9 shows the four twisted-pair, crossover cable schematics.
You can use Category 3, 4, or 5 cabling when connecting to 10BASE-T-compatible devices. You must
use Category 5 cabling when connecting to 100BASE-TX-compatible devices.

Connecting to 1000BASE-T Devices
When connecting the ports to 1000BASE-T devices, such as servers, workstations, and routers, you must
use a four twisted-pair, Category 5, straight-through cable wired for 10BASE-T, 100BASE-TX, and
1000BASE-T. Figure B-8 shows the straight-through cable schematics.
When connecting the ports to other devices, such as switches or repeaters, you must use a four
twisted-pair, Category 5, crossover cable. Figure B-9 shows the crossover cable schematics.

Note

Be sure to use a four twisted-pair, Category 5 cable when connecting to a 1000BASE-T-compatible
device.

Note

Use a straight-through cable to connect two ports only when one port is designated with an X. Use a
crossover cable to connect two ports when both ports are designated with an X or when both ports do
not have an X.
10/100/1000 Port Pinouts

Pin

Label

1

TP0+

2

TP0-

3

TP1+

4

TP2+

5

TP2-

6

TP1-

7

TP3+

8

TP3-

1 2 3 4 5 6 7 8

60915

Figure B-1

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Appendix B

Connector and Cable Specifications
Connector Specifications

10-Gigabit Ethernet Module Interfaces
The 10-Gigabit Ethernet modules use SC connectors or Infiniband 4x connectors, as shown in
Figure B-2 and Figure B-3.
10-Gigabit Ethernet Optical Module SC Connector

Figure B-3

10-Gigabit Ethernet Infiniband 4x Connector

250375

Figure B-2

Cisco TwinGig Converter Module Ports
The Cisco TwinGig Converter Module uses SFP modules for fiber-optic and copper uplink ports.
Figure B-4 and Figure B-5 show the SFP module connectors.
Duplex LC Cable Connector

Figure B-5

Copper SFP Module RJ-45 Connector

58476

Figure B-4

Label

1

TP0+

2

TP0-

3

TP1+

4

TP2+

5

TP2-

6

TP1-

7

TP3+

8

TP3-

1 2 3 4 5 6 7 8

60915

Pin

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Appendix B

Connector and Cable Specifications

Cable and Adapter Specifications

Console Port
The console port uses an 8-pin RJ-45 connector, which is described in Table B-4 and Table B-5. The
supplied RJ-45-to-DB-9 adapter cable is used to connect the console port of the switch module to a
console PC. You need to provide a RJ-45-to-DB-25 female DTE adapter if you want to connect the
switch module console port to a terminal. You can order a kit (part number ACS-DSBUASYN=)
containing that adapter from Cisco. For console port and adapter pinout information, see Table B-4 and
Table B-5.

Cable and Adapter Specifications
These sections describe the cables and adapters used with the switch module.
•

10-Gigabit Ethernet X2 Transceiver Module Cable Specifications, page B-4

•

SFP Module Cable Specifications, page B-6

•

Two Twisted-Pair Cable Pinouts, page B-6

•

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports, page B-7

•

Identifying a Crossover Cable, page B-8

•

Console Port Adapter Pinouts, page B-8

10-Gigabit Ethernet X2 Transceiver Module Cable Specifications
Table B-1 lists the port cabling specifications for the 10-Gigabit Ethernet X2 transceiver modules. Each
port must match the wave-length specifications on the other end of the cable, and for reliable
communications, the cable must not exceed the stipulated cable length. Table B-2 lists the transceiver
optical send and receive specifications.
Table B-1

X2 Transceiver Port Cabling Specifications

Modal
Bandwidth Maximum Cabling
(MHz/km) Distance

X2 Product
Number

Wavelength
(nm)

Core Size
Cable Type (microns)

X2-10GB-SR

850

MMF

62.5
62.5
50.0
50.0
50.0

160
200
400
500
2000

85 feet (26 m)
108 feet (33 m)
217 feet (66 m)
269 feet (82 m)
984 feet (300 m)

X2-10GB-LX4

1310

MMF1

62.5
50.0
50.0

500
400
500

984 feet (300 m)
787 feet (240 m)
984 feet (300 m)

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Connector and Cable Specifications
Cable and Adapter Specifications

Table B-1

X2 Transceiver Port Cabling Specifications (continued)

Modal
Bandwidth Maximum Cabling
(MHz/km) Distance

X2 Product
Number

Wavelength
(nm)

Core Size
Cable Type (microns)

X2-10GB-CX4

—

InfiniBand —
(copper)

—

49 feet (15 m)

X2-10GB-LRM

1310

MMF

62.5

160

220 m (722 feet)

62.5

200

220 m (722 feet)

50.0

400

220 m (722 feet)

50.0

500

220 m (722 feet)

50.0

1500

220 m (722 feet)

1. Mode conditioning patch cord is recommended for MMF applications.

Table B-2

X2 Transceiver Optical Send and Receive Specifications

X2 Product
Number

Transmit and
Receive
Wavelength (nm)

Transceiver Type

Transmit Power
(dBm)

Receive Power
(dBm)

X2-10GB-SR

10GBASE-SR,
850-nm MMF

–11 (max)
–7.3 (min)

–1.0 (max)
–9.9 (min)

X2-10GB-LX4

10GBASE-LX4
WWWDM
1300-nm MMF

–0.5 per lane (max) –0.5 (max)
—
–14.4 per lane

Four lanes; overall
range: 1269 to 1356

X2-10GB-LRM

10GBASE-LR,
1310-nm MMF

0.5 (max)

0.5 (max)

1260 to 1355

–6.5 (min)

–8.4 (min average)
and –6.4 (min in
OMA)

840 to 860

1. The launch power shall be the lesser of the Class 1 safety limit or the maximum receive power. Class 1 laser requirements
are defined by IEC 60825-1: 2001.

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Appendix B

Connector and Cable Specifications

Cable and Adapter Specifications

SFP Module Cable Specifications
Table B-3 lists the cable specifications for the fiber-optic SFP module connections. Each port must
match the wave-length specifications on the other end of the cable, and for reliable communications, the
cable must not exceed the required cable length. Copper 1000BASE-T SFP transceivers use standard
four twisted-pair, Category 5 (or greater) cable at lengths up to 328 feet (100 meters).
Table B-3

Fiber-Optic SFP Module Port Cabling Specifications

Wavelength
(nanometers)

Fiber Type

1000BASE-SX
(GLC-SX-MM)

850

MMF

1000BASE-T (GLC-T)

N/A

SFP Module

Core Size/Cladding Modal Bandwidth
Size (micron)
(MHz/km)1
Cable Distance
62.5/125
62.5/125
50/125
50/125

160
200
400
500

722 feet (220 m)
902 feet (275 m)
1640 feet (500 m)
1804 feet (550 m)

1. Modal bandwidth applies only to multimode fiber.

Two Twisted-Pair Cable Pinouts
Figure B-6 and Figure B-7 show the schematics of two twisted-pair cables for connecting to 10BASE-Tand 100BASE-TX-compatible devices.
Two Twisted-Pair Straight-Through Cable Schematic

Switch

Router or PC

3 TD+
6 TD–

3 RD+
6 RD–

1 RD+
2 RD–

1 TD+
2 TD–

Two Twisted-Pair Crossover Cable Schematic

Switch

Switch

3 TD+
6 TD–

3 TD+
6 TD–

1 RD+
2 RD–

1 RD+
2 RD–

H5579

Figure B-7

H5578

Figure B-6

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Connector and Cable Specifications
Cable and Adapter Specifications

Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports
Figure B-8 and Figure B-9 show the schematics of four twisted-pair cables for 10/100/1000 ports on
the switch module.

Switch

Router or PC

1 TPO+

1 TP1+

2 TPO-

2 TP1-

3 TP1+

3 TPO+

6 TP1-

6 TPO-

4 TP2+

4 TP3+

5 TP2-

5 TP3-

7 TP3+

7 TP2+

8 TP3-

8 TP2-

Figure B-9

65272

Four Twisted-Pair Straight-Through Cable Schematic for 10/100/1000 Ports

Four Twisted-Pair Crossover Cable Schematics for 10/100/1000 Ports

Switch

Switch

1 TPO+

1 TP0+

2 TPO-

2 TP0-

3 TP1+

3 TP1+

6 TP1-

6 TP1-

4 TP2+

4 TP2+

5 TP2-

5 TP2-

7 TP3+

7 TP3+

8 TP3-

8 TP3-

65274

Figure B-8

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Appendix B

Connector and Cable Specifications

Cable and Adapter Specifications

Identifying a Crossover Cable
To identify a crossover cable, compare the two modular ends of the cable. Hold the cable ends
side-by-side, with the tab at the back. The wire connected to the pin on the outside of the left plug should
be a different color from the wire connected to the pin on the inside of the right plug. (See Figure B-10.)
Figure B-10

Identifying a Crossover Cable
Pin 1 on one connector and
pin 1 on the other connector
should be different colors.

Pin 1

200915

Pin 1

Console Port Adapter Pinouts
Table B-4 lists the pinouts for the console port, the RJ-45-to-DB-9 adapter cable, and the console device.
Table B-4

Console Port Signaling Using a DB-9 Adapter

Switch
Console
Port (DTE)

RJ-45-to-DB-9
Terminal Adapter

Console
Device

Signal

DB-9 Pin

Signal

RTS

8

CTS

DTR

6

DSR

TxD

2

RxD

GND

5

GND

GND

5

GND

RxD

3

TxD

DSR

4

DTR

CTS

7

RTS

Table B-5 lists the pinouts for the console port, RJ-45-to-DB-25 female DTE adapter, and the
console device.

Note

The RJ-45-to-DB-25 female DTE adapter is not supplied with the switch module. You can order a kit (part
number ACS-DSBUASYN=) containing this adapter from Cisco.

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Connector and Cable Specifications
Cable and Adapter Specifications

Table B-5

Console Port Signaling Using a DB-25 Adapter

Switch
Console
Port (DTE)

RJ-45-to-DB-25
Terminal Adapter

Console
Device

Signal

DB-25 Pin

Signal

RTS

5

CTS

DTR

6

DSR

TxD

3

RxD

GND

7

GND

GND

7

GND

RxD

2

TxD

DSR

20

DTR

CTS

4

RTS

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Appendix B

Connector and Cable Specifications

Cable and Adapter Specifications

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A P P E N D I X

C

Configuring the Switch with the CLI-Based
Setup Program
This appendix provides a quick installation and setup procedure for the switch module by using the
command-line interface (CLI).

Note

For detailed installation procedures, see Chapter 2, “Switch Installation.” For product overview
information, see Chapter 1, “Product Overview.”
These are the major steps for a quick installation when using the CLI:
1.

Accessing the CLI Through the Console Port, page C-1

2.

Connecting to the Console Port, page C-1

3.

Completing the Initial Configuration, page C-4

Accessing the CLI Through the Console Port
You can access the CLI on a configured or unconfigured switch module by connecting the console port
of the switch module to the serial port on your PC or workstation and accessing the switch module
through a Telnet session.

Connecting to the Console Port
Obtain and make note of this information from your network administrator before you begin the switch
module installation:
•

Switch IP address

•

Subnet mask (IP netmask)

•

Default gateway (router)

•

Enable secret password (encrypted)

•

Enable password (not encrypted)

•

Telnet password

•

SNMP community strings (optional)

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Appendix C

Configuring the Switch with the CLI-Based Setup Program

Accessing the CLI Through the Console Port

Complete these steps:
Step 1

Connect one end of the console cable to the switch module console port. Connect the other end of the
cable to the serial port of the computer that is running the terminal emulation application. (See
Figure C-1.)
You can use the mdix auto interface configuration command in the CLI to enable the automatic
medium-dependent interface crossover (auto-MDIX) feature. When the auto-MDIX feature is enabled,
the switch module detects the required cable type for copper Ethernet connections and configures the
interfaces accordingly. Therefore, you can use either a crossover or a straight-through cable for
connections to a copper 10/100/1000 or 1000BASE-T SFP module port on the switch module, regardless
of the type of device on the other end of the connection.
For configuration information for this feature, refer to the switch module software configuration guide
or the switch module command reference on Cisco.com.

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Appendix C

Configuring the Switch with the CLI-Based Setup Program
Accessing the CLI Through the Console Port

Figure C-1

Connecting through the Switch Module Console Port

SYST
STAT
DLX
SPD

UID
MODE

WS-CBS-3

17

MEDIA

DETECT

CONSOLE

SFP/R-45

17x
PORTS

17-20

17x 21x

20
020-HPQ

17
18
19

20

20x 24x

23x

18x

153388

24x

Step 2

Start the terminal emulation session so that you can see the output display from the power-on self-test
(POST). The terminal-emulation software—a PC application such as Hyperterminal or
ProcommPlus—makes communication between the switch module and your PC or terminal possible.

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Appendix C

Configuring the Switch with the CLI-Based Setup Program

Accessing the CLI Through the Console Port

Configure the baud rate and character format of the PC or terminal to match these console port default
characteristics:
•

9600 baud

•

8 data bits

•

1 stop bit

•

No parity

•

None (flow control)

Step 3

Wait for the switch module to complete the POST. It might take several minutes for the switch module
to complete POST.

Step 4

Verify that POST has completed by confirming that the system and status LEDs remain green.
If the switch module fails POST, the system LED turns amber. POST errors are usually fatal. Call Cisco
Systems immediately if your switch module fails POST.

Step 5

Wait for the switch to complete initialization. When you see the prompt, Press
press Return or Enter.

Return to Get

Started!,

Step 6

Make sure that the system and status LEDs are green. This means that the switch module is operating
properly.

Step 7

See the “Completing the Initial Configuration” section on page C-4 for instructions on setting up and
initially configuring the switch module.

Completing the Initial Configuration
Follow these steps to complete the setup program and to create an initial configuration for the switch
module.

Note

Step 1

For information about automatically configuring the switch module, see the “Assigning the Switch IP
Address and Default Gateway” chapter in the switch module configuration guide.

After you have pressed Enter or Return after the prompt to start the initial configuration setup program,
enter yes at these prompts:
Would you like to terminate autoinstall? [yes]: yes
--- System Configuration Dialog --Continue with configuration dialog? [yes/no]: yes
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Basic management setup configures only enough connectivity
for management of the system, extended setup will ask you
to configure each interface on the system
Would you like to enter basic management setup? [yes/no]: yes
Configuring global parameters:

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Configuring the Switch with the CLI-Based Setup Program
Accessing the CLI Through the Console Port

Step 2

Enter a hostname for the switch module after the prompt, and press Return.
The hostname is limited to 20 characters. Do not use -n, where n is a number, as the last character in a
hostname for any switch module.

Step 3

Enter an enable secret password, and press Return.
The password can be from 1 to 25 alphanumeric characters, can start with a number, is case sensitive,
allows spaces, but ignores leading spaces. The secret password is encrypted, and the enable password is
in plain text.

Step 4

Enter an enable password, and press Return.

Step 5

Enter a virtual terminal (Telnet) password, and press Return.
The password can be from 1 to 25 alphanumeric characters, is case sensitive, allows spaces, but ignores
leading spaces.

Step 6

(Optional) Configure Simple Network Management Protocol (SNMP) by responding to the prompts.
1.

To configure SNMP later, press Return (which applies the default of no). If you accept the default,
you can configure SNMP later through the CLI.
Configure SNMP Network Management? [no]:

2.

To configure SNMP now, enter yes.
Configure SNMP Network Management? [no]: yes
Community string [public]: public

Step 7

Enter the interface name (physical interface or VLAN name) of the interface that connects to the
management network, and press Return.
Enter vlan1 for the interface name at this prompt.

Step 8

To configure the interface, enter Yes after the prompt, and then enter the switch module IP address and
subnet mask. Press Return.
The IP address and subnet mask shown here are examples:
Configuring interface Vlan1:
Configure IP on this interface? [yes]:
IP address for this interface [10.0.0.1]:
Subnet mask for this interface [255.255.255.0] : 255.255.255.0
Class A network is 10.0.0.1, 21 subnet bits; mask is /21

Step 9

Enter no when the prompt asks you if you would like to enable the switch module as a cluster command
switch. This switch module will be a standalone switch.
Would you like to enable as a cluster command switch? [yes/no]: no

Note

The Cisco Catalyst Blade Switch 3020 for HP does not support clustering.

You have now completed the initial configuration of the switch module, and the switch module displays
its initial configuration. An example of the output is shown here:
The following configuration command script was created:
hostname switch1
enable secret 5 $1$cagJ$e4LP91PNazfdADoNAZm6y0
enable password enable_password
line vty 0 15
password terminal-password
snmp-server community public
!

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Appendix C

Configuring the Switch with the CLI-Based Setup Program

Accessing the CLI Through the Console Port

!
interface Vlan1
no shutdown
ip address 10.0.0.1 255.255.255.0
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
. . . (output truncated)

interface GigabitEthernet0/16
!
end

Step 10

These choices appear:
[0] Go to the IOS command prompt without saving this config.
[1] Return back to the setup without saving this config.
[2] Save this configuration to nvram and exit.
If you want to save the configuration and use it the next time the switch reboots, save it
in NVRAM by selecting option 2.
Enter your selection [2]:2

Make your selection, and press Return.
Step 11

Disconnect the blade server serial port or the switch module console port from the PC. See the
“Management Options” section on page 1-8 for information about managing the switch module.

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I N D EX

cables (continued)

Numerics

crossover
10/100/1000 ports

connecting to

2

cable lengths

4, 23

four twisted-pair pinout, 1000BASE-T ports

connecting to

22, 23

identifying

connectors and cables
described

1 to 2

description

recommended
4

SFP module

recommended cables

8

two twisted-pair pinout, 10/100 ports

4

24

6

24
6

straight-through

10-Gigabit Ethernet module slots described

4

connecting to

2

four twisted-pair pinout, 1000BASE-T ports
two twisted-pair pinout

A

X2 transceiver module

accessing the device manager

RJ-45-to-DB-9
auto-MDIX

7

6

4

cabling

24

adapter pinouts, terminal
RJ-45-to-DB-25

7

10/100/1000 ports
auto-MDIX

8

pinouts

8

22

23, 1, 2

6

See also connectors and cables

23, 1, 2

autonegotiation

StackWise cables

default setting

23

troubleshooting

4

cable numbers

8

connecting to

16

cautions

8

Cisco IOS command-line interface

B

Cisco IP Phones, connecting to

10, 24

22, 24

Cisco TwinGig Converter Module

blade enclosure
architecture
description

5
1

described

4

installing

18

Class 1 laser warning

2

CLI

C

accessing through console port

cable lengths

using

3

10, 24

command-line interface

cables
connecting the stacking cables

1

16

See CLI

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IN-1

Index

configuration examples, network

examples, network configuration

3

connecting

Express Setup

the stacking cables

22

F

4

connection procedures

22 to 23

features

connectors and cables

1 to 8

features overview

10/100/1000 ports
console port

11 to 12

16

to 10/100/1000 ports
to console port

1 to 2

1 to 3

front panel

4 to 9

10/100/1000 Ethernet ports

console port

10/100 /1000 ports

connecting

3

3

4

4

10-Gigabit Ethernet module slots

connectors and cables
conventions, document

4 to 9

SFP module ports

4

4

8

converter modules
installing and removing

H

18 to 20

crossover cable
identifying

health LED

6

8

pinout for four twisted-pair, 1000BASE-T ports

7

I
installation

D

guidelines
device manager
description

9

how to access

24

diagnosing problems

3

prerequisites

5

requirements

3

installation instructions warning
1

installing Cisco TwinGig Converter Modules

disposal of product warning
document conventions

2

installing SFP modules

8

20 to 21

installing X2 transceiver modules

troubleshooting

23

18

assigning through the Onboard Administrator
refreshing

9

13

ways to assign

E

electrical noise, avoiding

6

IP address

4

electrical codes warning

18

installing the switch module in the blade enclosure

duplex
default setting

2

8

2

J

3

Ethernet and fiber-optic cable troubleshooting
Ethernet cable shielding warning
Ethernet port connections warning

2

jewelry removal warning

2

2
2

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide

IN-2

OL-12246-01

Index

L

P

LEDs

packing list

Health
port

pinouts

6

adapters

6

POST results
stack

9, 9

crossover cable

5

8

crossover cables for four twisted-pair, 1000BASE-T
ports 7

6

stack member
system

8

console port

1

stack master

6

crossover cables for two twisted-pair 10/100 ports

5

troubleshooting with
UID

4

RJ-45-to-DB-25 terminal adapter

1 to 2

RJ-45-to-DB-9 terminal adapter

6

lightning activity warning

2

link status troubleshooting

2

SFP module ports

9
8

3

straight-through cables
four twisted-pair 1000BASE-T ports
two twisted-pair

M

6

port and interface troubleshooting
port LEDs

managing the switch module
using SNMP

6

10/100/1000

10, 24

using the device manager

3

ports

10, 24

using the CLI

7

connecting to

9, 24

using the Onboard Administrator

4

described

10

23

4

recommended cables

message URL http
//www.cisco.com/web/learning/index.html

7

numbering of 10/100/1000
StackWise ports

24
4

8

POST

N

LEDs

network configuration examples
noise, electrical

3

1

running at power on
procedures

3

connecting StackWise Plus cables
connection

O

installation

Onboard Administrator

overheating prevention warning

11

6

publications, related

managing the switch module

16

22 to 23

Express Setup

using to assign IP address

1

8

10

9
2

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide
OL-12246-01

IN-3

6

Index

switch stack

R

configuration examples
recommended configurations for stacking

14

requirements for installing the switch module
RJ-45 connector, console port

creating
3

4

13 to 17

description
system LED

S

14 to 16

13

5

T

safety and handling guidelines
safety warnings

3

technical specifications

2

Telnet, and accessing the CLI

serial number location

6

temperature, operating

SFP modules

10, 24

1

trained and qualified personnel warning

bale-clasp latch removal
cables

1

21

troubleshooting

6

bad or damaged cable

2

connectors

3

connection problems

2

description

4

diagnosing problems

1

installation

20 to 21

Ethernet and fiber-optic cables

software switch module management
specifications

8

link status

1

speed

3

port and interface settings
23

troubleshooting
stacking caution
stack LED

POST

4

5

switch performance
with LEDs

6

setting

3

speed, duplex, and autonegotiation

stack master
LED

3

1

spanning-tree loops

13

2

2

ping end device

default setting

2

4

4

1 to 2

TwinGig Converter Module
12

See Cisco TwinGig Converter Module

stack member LED

6

StackWise Plus cables
configuration examples
ordering

U

14

14

StackWise ports

UID LED
8

6

unit identifier

straight-through cable

See UID

pinout
four twisted-pair 1000BASE-T ports
two twisted-pair 10/100 ports

7

6

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide

IN-4

OL-12246-01

Index

W
warnings
Class 1 laser
defined

2

8

disposal of product
electrical codes

2

2

Ethernet cable shielding

2

Ethernet port connections
installation

2

2

installation instructions
jewelry removal

2

2

lightning activity

2

overheating prevention

2

trained and qualified personnel

2

X
X2 transceiver modules
described

4

installing

18

installing and removing
removing

18 to 20

19

See also 10-Gigabit Ethernet module slot

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide
OL-12246-01

IN-5

Index

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide

IN-6

OL-12246-01



---

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