Vyyo V3000-C Base Station Transmitter User Manual System Users Manual

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XMTS T1 Access
Concentrator
XMTS
System Configuration
Guide
Network Release 3.5.x
Manual Version: 1.0.13
P/N: 9090-090
www.vyyo.com
Table Of Contents – p. 1
Copyright and Trademark Information:
© 2005 Vyyo Inc. All rights reserved.
Vyyo Inc. reserves the right to alter the equipment specifications and descriptions in this publication without
prior notice. No part of this publication shall be deemed part of any contract or warranty unless specifically
incorporated by reference into such contract or warranty.
The information contained herein is merely descriptive in nature, and does not constitute a binding offer for
the sale of the product described herein. Any use of the Vyyo Inc. logo or trademarks is forbidden without
prior written approval from Vyyo Inc.
All trademarks mentioned herein are the property of their respective owners.
www.vyyo.com
Table Of Contents – p. 2
Table Of Contents
Table Of Contents................................................................................ 3
Installation and Safety Information ...................................................... 7
Chapter 1. System Configuration Introduction.................................. 10
1.1
Overview...............................................................................................10
1.2
Equipment Capabilities .........................................................................13
1.3
XMTS....................................................................................................13
1.4
Modems................................................................................................16
1.4.1
Modems with DOCSIS and IP only................................................16
1.4.2
Modems with DOCSIS, IP and E1/T1............................................17
1.4.3
Modems with DOCSIS, IP and PSTN............................................18
1.4.4
Modems with DOCSIS and IP Only With Built in UHF Radio ........19
1.5
Modem Capabilities Matrix ...................................................................20
Chapter 2. Configuration Overview................................................... 21
2.1
Network Servers ...................................................................................21
2.1.1
DHCP Server.................................................................................21
2.1.2
TFTP Server..................................................................................21
2.1.3
Time-of-Day (TOD) Server ............................................................21
2.2
RF Link Layer .......................................................................................21
2.3
DOCSIS Layer......................................................................................22
2.4
IP Layer ................................................................................................23
2.5
E1/T1 Layer ..........................................................................................24
2.6
Configuration Tools and Files Matrix ....................................................26
Chapter 3. The Modem Initialization Process ................................... 28
3.1
Modem Initialization Sequence .....................................................28
3.1.1
Power-On Self Test ..........................................................................28
3.1.2
Downstream Synchronization.............................................................29
3.1.3
Obtaining Upstream Parameters ........................................................29
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Table Of Contents – p. 3
3.1.4
Ranging ..........................................................................................29
3.1.5
Establish IP Connectivity ...................................................................29
3.1.6
Establish Time of Day .......................................................................30
3.1.7
Transfer Operational Parameters .......................................................30
3.1.8
Registration .....................................................................................30
3.1.9
Baseline Privacy Initialization (BPI) .....................................................30
Chapter 4. Overview of the XMTS and Modem Configuration ......... 31
Chapter 5. Adding a Modem to the XMTS........................................ 34
5.1
Editing the Modem Configuration File...................................................35
5.1.1
Setting the Upstream Channel ......................................................35
5.1.2
Setting the Downstream Frequency ..............................................38
5.1.3
Setting Concatenation and Fragmentation Capabilities.................39
5.1.4
Setting Upstream QoS (Class of Service) for IP Data ...................40
5.1.5
Setting Additional Downstream and Upstream Channels ..............41
5.1.6
Setting the Maximum Number of CPEs .........................................42
5.2
DHCP Settings for the Modem .............................................................43
5.2.1
IpLease DHCP Server: Editing and running the CM.SRC File ......43
5.2.2
Windows 200x Server Edition: Modifying the DHCP Options .......48
5.3
Configuring the XMTS ..........................................................................57
5.3.1
Setting the XMTS Upstream Parameters ......................................57
5.3.2
Setting the XMTS Downstream Parameters..................................63
5.4
Setting the Modem’s Downstream Frequency ......................................67
5.5
Verifying the Modem Downstream and Upstream Status .....................74
5.6
Using an HTTP Connection to View Modem Operation........................76
5.6.1
Viewing the internal modem HTML pages:....................................76
5.6.2
Viewing the Connection Page .......................................................78
5.6.3
Viewing the Software Page ...........................................................79
5.6.4
Viewing the Security Page.............................................................80
Chapter 6. Configuring a T1 Connection .......................................... 81
6.1
Configure the Modem for T1 Operation ................................................82
6.2
Adding the T1 modem to the XMTS T1 Interface and Assign Port(s) ...91
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Table Of Contents – p. 4
Chapter 7. Setting the XMTS IP Address ....................................... 102
Chapter 8. Installing Vyyo Servers for XMTS Operation ................ 112
8.1
Installing The Time Server:.................................................................112
8.2
Installing the Pumpkin TFTP Server: ..................................................112
8.3
Installing IPLease DHCP Server:........................................................115
8.3.1
dhcpsvr.ini ...................................................................................115
8.3.2
cm.src..........................................................................................116
8.3.3
Dhcpgen ......................................................................................118
8.3.4
DhcpSvr:......................................................................................121
Chapter 9. Maintenance and Troubleshooting................................ 122
9.1
Introduction.........................................................................................122
9.2
Troubleshooting the RF Frontend.......................................................122
9.2.1
General........................................................................................122
9.2.2
Checking the Downstream ..........................................................123
9.2.3
Checking the Upstream ...............................................................124
Chapter 10.
Troubleshooting The Subscriber Site ..................... 125
10.1
Post-Registration Verification .............................................................125
10.2
Physical Layer Troubleshooting..........................................................125
10.3
IF Layer Troubleshooting....................................................................125
10.4
Troubleshooting the NMS ...................................................................126
10.5
Repairs Safety ....................................................................................126
Chapter 11.
Synoptics Display for XMTS Configuration............. 128
11.1
Setting the XMTS Upstream Parameters ..................................................128
11.2
Setting the XMTS Downstream Parameters ..............................................134
Appendix A.
XMTS US Port Mapping ......................................... 138
Appendix B.
Checking the XMTS Version................................... 139
Appendix C.
Installing and Uninstalling the NMS........................ 142
C.1
First Time Installation..........................................................................142
C.2
Invoking Vyyo NMS ............................................................................142
www.vyyo.com
Table Of Contents – p. 5
C.3
Installation Upgrade............................................................................142
C.4
Uninstalling the NMS ..........................................................................143
INDEX
www.vyyo.com
144
Table Of Contents – p. 6
Installation and Safety Information
The following information is provided to ensure
safe operation of this equipment. Xtend
Networks assumes no liability in the event that
the customer fails to comply with the following
safety precautions and warnings.
System Power-on
AC System Power
AC System
The XMTS power supplies are factory wired for 115 ~ 220 VAC (2 X
200W). A power cords are provided to connect the unit to the power
source. To operate the XMTS, turn ON the power switch at the rear panel.
Warning!
Set the fuse selector on the rear panel to the proper position
(110V or 220V), before plugging in the power cord, or turning on the
XMTS.
DC System Power
DC System
1. When connecting DC power lines make sure to connect Ground line
first.
2. When disconnecting DC power lines – make sure to disconnect ground
last.
3.External Circuit Breaker (DuPole) should be
connection/removal of the power cable to/from the XMTS.
used
before
4. FUSE Replacement – Make sure to use same type and value fuse !!
Note that UL requires use of AC ceramic high breaking capacity 10Amp
fuse.
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Installation and Safety Information – p. 7
Earthing
The minimum cross sectional area of the protective
earthing should be 1mm2 .
General
T1 Cable
T1 cable to be used with XMTS T1 ports is only 26AWG
communication cable (the common cable for this application).
General
Repairs Safety
General
1. Repairs of XMTS should take place only in Xtend Networks
company service laboratories or in other Xtend Networks
formally approved distributors service laboratories.
2. In case of field handling - Disconnect the unit from power
supply for safest repair.
3.
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2. In case of a -48VDC operated XMTS, the External Circuit Breaker
(Du Pole) must be used before connection/removal of the power cable
to/from the XMTS.
Installation and Safety Information – p. 8
Safety Summary
Warnings:
Carefully connect units to the supply circuit so that
wiring is not overloaded. For DC system connect
Ground first (or remove Ground last for disconnect).
Read the installation instructions before connecting
the system to its power source.
Secure all power cabling when installing this unit.
Do not touch the power supply when power cord is
connected. For systems with a power switch, line
voltages are present within the power supply, even
when the power switch is off and the power cord is
connected. For systems without a power switch, line
voltages are present within the power supply when the
power cord is connected
The device is designed to work with TN power
systems
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 the power and ground. This can
cause serious burns or weld the metal object to the
terminals
Repairs of XMTS should take place only in Xtend
Networks company service laboratories or in other
Xtend Networks formally approved distributors service
laboratories. In case of field handling our general
SAFETY warning is to disconnect the unit from power
supply for safest repair.
www.vyyo.com
Installation and Safety Information – p. 9
Chapter 1. System Configuration
Introduction
This guide is intended as a practical aid for the Technicians, Operators and Field
Service Engineers responsible for quickly configuring Vyyo systems at most
common installations. It is not intended as a substitute for a detailed reference
manual.
NOTE: Througout this manual the terms modem and
WMU are used interchangeably. The term “WMU” refers
to “Wired/wireless Modem Unit”. In some instances the
actual modem model (V280, V301, etc.) may be used if
the information is specific to that modem.
The term “XMTS” is used interchangeably with “WMTS”.
XMTS is an acronymn for “Xtend Modem Termination
System” and will replace WMTS , “Wired/wireless Modem
Termination System”.
1.1 Overview
The system acts as an RF bridge between a network, typically the Internet or the
Public Switched Telephone Network (PSTN) (at the head end) and customer
equipment at the other end of the RF link.
Customer Premises
Hybrid Fiber/Coax Cable Network
Internet
or
PSTN
XMTS
Cable
Modem
(CM)
Customer
Equipment
It may be visualized as a three layer protocol stack. The highest layer may be
any one of the following: IP, E1/ T1 or PSTN.
All systems include the IP capability, which is required for network management.
The E1/T1 capability requires an additional plug-in card at the XMTS
(Cable/Wireless Modem Termination System) end and a corresponding
cable/wireless modem at the downstream end.
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System Configuration Introduction – p. 10
The data from the IP, E1/T1, or PSTN layer are encapsulated as DOCSIS frames
which in turn are converted into RF signals and sent over the air or via an HFC
(Hybrid Coax Fibre) plant between the XMTS and modem.
Important Note: connectivity MUST be obtained at each
layer, beginning with the lowest (RF link) in order to
establish full communication.
www.vyyo.com
System Configuration Introduction – p. 11
The following diagram illustrates this in the form of a three layer protocol
stack:
XMTS
Modem
IP, E1/T1, POTS
Layer 3
IP, E1/T1, POTS
DOCSIS
Layer 2
DOCSIS
RF Link
Layer 1
RF Link
This illustration shows how a complete system is connected:
Provisioning
Services
Tx
PC
Internet
100BaseT
100BaseT
RF Cloud or
Cable Plant
Rx
MTA
XMTS
V280 Modem
RF Coax
IP Network
Packet
Voice
Server
H.323v2 or
MGCP, VOIP
RJ-11
V311 E1/T1 Modem
E1/T1
IP Router
RJ-11
Line #1
Phone
Line #2
Fax
E1/T1
100BaseT
PSTN
Intranet
Telephone
Switch
Connection Legend:
PBX
Blue = 100BaseT Ethernet
Green = RF Coaxial cable
Black = T1/E1
Grey = RJ-11
www.vyyo.com
System Configuration Introduction – p. 12
There are different configuration requirements for each layer and different
software tools accomplish this task. The configuration of the RF link is typically
unique to each installation with the particular downstream and upstream
frequencies, modulations and bandwidths being the critical parameters that must
be set on the modem and XMTS.
Whereas there is no set standard for implementing an RF link, DOCSIS is a fully
specified protocol as are the upper layers (IP, E1/T1 or PSTN). The following
sections will describe the currently available system components (equipment)
then detail how to configure each of them in turn.
1.2 Equipment Capabilities
There are several different modems available, the simplest being the DOCSIS
modems with IP-only capability. All of the other modems use these as their
foundation.
The XMTS used at the head end is the other major component. There is only one
basic configuration, which is augmented with additional plug-in cards to
accommodate E1/T1 and PSTN capabilities.
NOTE: The term XMTS was originally conceived as
“extended” CMTS for use in a cable plant, hence the “X”.
This was followed by WMTS in which the “W” indicates a
“wireless” CMTS. For practical purposes these terms are
interchangeable and in some places the software uses
the term “WMTS” when referring to any one of these
systems.
1.3 XMTS
The basic XMTS is a chassis with a power supply and a mid-plane PCI bus that
accommodates plug-in cards at the front and rear. Two redundant power supply
cards are provided at the right end of the front of the chassis.
The minimum required hardware configuration for an IP-only system consists of
one "HOST" card and three "Universal" cards. One Universal card acts as a
"Control and Forward" (C&F) card, one as the "Upstream" digital card and one as
the "Downstream" digital card. These latter two cards are attached to RF cards
in the rear slots. The E1/T1 capability is added by requires the Master4 card
(which replaces the older HOST card), and adding one or two E1/T1 interface
cards in the rear slots to provide 12 or 24 E1/T1 ports, respectively.
The HOST or Master4 card serves as the PCI bus arbiter and provides the
system clock and timing. When the XMTS boots, the Master4 card initializes,
then identifies the C&F card. The C&F card then directs the configuration and
downloading of relevant application software. The C&F card is connected
through a 100 BaseT Full Duplex connection to the switch or router and used to
transport data (including management packets) through the system.
All Universal cards are the physically identical: the card attached to them in the
rear slots and the application downloaded during initial startup determine the
function of the card (Upstream, Downstream or Control & Forward).
www.vyyo.com
System Configuration Introduction – p. 13
In the rear slots, one Downstream and one Upstream RF interface card are
required. Each of these corresponds to its companion Universal card. The
“Quad” downstream card has four RF connectors and provides four downstream
channels. The “Hex” upstream card has six RF connectors and provides six
upstream channels.
Note: All Downstream cards have a fixed output
frequency of 44 MHz which must be converted up per the
local requirements.
Upstream cards may be configured to receive any
frequency from 5-65 MHz
Figure 1-1. The XMTS Chassis with (from left to right) Upstream card, Downstream
card, Control and Forward card, MASTER4 card, and Power Supplies
shown.
The XMTS is mounted in a standard 19” by 6U high rack-mounted chassis.
The chassis has a fan tray above the unit, bringing the total height required
in the rack, to 8U. The eight bay chassis contains eight slots in the front, six
slots in the rear, and a mid-plane card in between, used to interface the
cards. Blank panels cover unused slots.
A standard 33 MHz, 32 bit Compaq PCI bus is used to transfer traffic and
data between the system cards. The power supplies, Master4 card and the
universal cards are inserted in the front slots of the chassis. The Quad
Downstream, Hex Upstream, and E1/T1 cards are inserted in the rear slots
of the chassis.
The ON/OFF power switch and the fuse are located in the rear of the power
supply.
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System Configuration Introduction – p. 14
Figure 1-2. Midplane Cutaway View of XMTS; Universal Card Shown in Cutaway
attached to an RF card.
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System Configuration Introduction – p. 15
1.4 Modems
1.4.1 Modems with DOCSIS and IP only
The V280 is Vyyo’s “IP-only” modem. It uses an RJ45 connector (shown below)
on the rear panel to provide IP connection to the customer’s equipment. The
V280 supports up to 63 data users simultaneously and provides privacy,
authentication, service classification, prioritization, and traffic shaping.
The USB connector is not supported at this time. Check with Customer Support
for updates as they become available if you need this capability.
Figure 1-3. V280 Rear Panel
Figure 1-4: V280 Front panel
Hyperterm (a Windows terminal application which permits either a serial or direct
IP connection and is used in the following examples) or Telnet may be used to
connect the modem to a computer to configure parameters in the modem, such
as the downstream receive frequency. Any equivalent software utilities may be
used.
A basic XMTS unit (without E1/T1 capability) is all that is required at the head
end to complete an IP connection.
www.vyyo.com
System Configuration Introduction – p. 16
1.4.2 Modems with DOCSIS, IP and E1/T1
The V311 is a V280 modem (to provide the DOCSIS layer) with one E1/T1
interface (via an RJ45 connector on the front panel) added. In addition to IP
connectivity, it supports circuit switched E1/T1 applications. It has one 100
BASE-T port for IP data and one E1/T1 port which can support up to 32/24 time
slots.
The E1/T1 application supports framed or unframed E1/T1 services. In the case
of unframed configuration, all 32/24 time slots (including time slot 0) are delivered
over the air.
In the case of framed E1/T1 configuration, a full or fractional E1/T1 (any number
up to 31/23 time slots) can be delivered.
The V311 modem is shown in this image:
Figure 1-5: V311 Modem
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System Configuration Introduction – p. 17
The V312 is identical to the V311 but has two E1/T1 interfaces instead of one.
The XMTS at the head end requires one or two E1/T1 interface cards (plugged
into the rear slots, with the second E1/T1 card attached to the first one as a
daughter board) to work with the V311 or V312. The E1/T1 connection will be
terminated at one of the ports on this (rear) E1/T1 interface card(s). In addition,
a separate software load is required.
All modems have four LED indicators, described below.
Figure 1-6. LED Indicators
Table 1.1 LED Indicators, Functions, and Conditions
1.4.3 Modems with DOCSIS, IP and PSTN
The V313 is a V280 (for the DOCSIS layer) with a PSTN interface added: this
physical interface (provided with the V313) comprises four RJ45 connectors,
each of which connects to a special cable terminated in four RJ11 connectors,
allowing a total of sixteen PSTN devices to be connected.
The XMTS at the head end requires an E1/T1 card and a V5.2 AN stack
(additional software available from Vyyo) to work with this unit. If you plan to
deploy the V313 please contact your Vyyo representative.
www.vyyo.com
System Configuration Introduction – p. 18
1.4.4 Modems with DOCSIS and IP Only With Built in UHF Radio
The V284 modem is a basic V280 modem integrated with a built-in UHF radio
that provides an upstream RF output in the 710-716 MHz range. Internally the
V284 has a factory set intermediate frequency of 44MHz which is converted up to
yield an appropriate upstream frequency (This is preset at the factory for 700MHz
in the United States).
The downstream frequency ranges from 740-746MHz. Note that the RF setup of
this radio requires appropriate preplanning owing to the complexity introduced by
the internal UHF radio. Please reference the UHF System Installation Guide
and/or your local system engineer.
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System Configuration Introduction – p. 19
1.5 Modem Capabilities Matrix
Modem
Model
Modem
Hardware
Connectivity
Additional
XMTS Cards
required
Description
V280
V280
IP
none
The basic DOCSIS modem
V311
V280
plus
E1/T1
card
IP, E1/T1
E1/T1
interface
card and
Master4 card
A V280 modem with one
E1/T1 interface (one RJ48
connector on the front which
can handle one E1 or T1
line)
V312
V280
plus
E1/T1
card
IP, E1/T1
E1/T1
interface
card and
Master4 card
A V280 modem with two
E1/T1 interfaces (two RJ48
connectors on the front
which can handle one E1 or
T1 line each)
V313
V280
plus
internal
PSTN
card
IP, PSTN
E1/T1
interface
card and
Master4
card with
additional
V5.2 AN
stack
A V280 modem with a builtin PSTN interface (four
RJ45 connectors each of
which attaches to four RJ11
POTS connectors)
V284
V280
plus
internal
UHF
radio
IP
none
A V280 modem with an
internal UHF radio for
communication in the
700MHz range – special RF
configuration is necessary.
Please see the UHF System
Installation Guide.
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System Configuration Introduction – p. 20
Chapter 2. Configuration Overview
This section of the System Configuration Guide features a short overview of each
component/layer of the System including the XMTS and the modems. The last
section is a summary presented as a matrix that shows the relationships between
the various tools and files. The components and layers are described below.
•
Network Servers
DHCP Server
TFTP Server
Time of Day (ToD) Server
•
RF Link Layer
•
DOCSIS Layer
2.1 Network Servers
The following servers are required for successful completion of modem
initialization. They will be accessed by the modem and the XMTS at specific
points during the registration and installation process.
2.1.1 DHCP Server
This server binds the modem’s MAC address to both its Network IP address
and its configuration (or “boot”) file, which contains several important system
specific parameters required for the modem to communicate with the XMTS.
Viewing this information can help in troubleshooting any problems which may
occur.
2.1.2 TFTP Server
This server downloads the selected configuration file to the modem during
the registration process when the modem requests it. It also downloads files
and configuration information to the XMTS. This information is used for
initial (first time) startup and for troubleshooting.
2.1.3 Time-of-Day (TOD) Server
This server provides the Time of Day to the modems and the XMTS. It allows
the XMTS and the modem to coordinate their timing.
2.2 RF Link Layer
This network layer is unique for each installation and depends on the
available frequencies, the frequency plan, the specific hardware used for the
installation, and other factors.
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Configuration Overview – p. 21
Your System Engineer must develop a detailed system plan that accounts
for each of these variables. This plan must include the assignments of
downstream frequencies, modulations (and other RF parameters) and
upstream channel IDs assigned to the various modems deployed in the
network. If the modems are to be used with E1/ T1 connections, all related
parameters, especially QoS (Quality of Service, also referred to as Class of
Service) parameters, also need to be defined (these are discussed later in
this document.)
NOTE: The methods to define these factors are unique
to each customer and are outside the scope of this
document. They are part of the site preparation and preplanning, including any “overbooking” scheme that may
be desired. Please consult your Vyyo representative or
system integrator for assistance.
The Downstream and Upstream frequencies, modulations and bandwidths
MUST be pre-determined in order to proceed with the configuration of the
XMTS and the modems. Each modem must be assigned to a specific XMTS
Upstream Channel (the upstream channel is referenced by its Channel ID
which identifies the physical port.) The Upstream channel must be
configured for a specific frequency, modulation and bandwidth or symbol
rate.
NOTE: The XMTS must be configured to use the correct
Upstream and Downstream parameters. This is done
using the Vyyo Configuration tool.
It also recommended that each modem is assigned to a particular
Downstream channel (or set of channels.) The modem can use Downstream
channel discovery, however; it is typically not used since it takes much
longer to discover the correct frequencies.
Using pre-determined frequencies also allows greater control over the RF
frequency assignments and can distribute network bandwidth more
efficiently. A range of frequencies can be defined in the modem
configuration file to cover all customer assigned bands and to minimize
future re-configuration.
NOTE: The modem’s Downstream ferequency is preset
at the factory but may be changed on the modem by
using a direct Telnet connection. See Section 5.4 Setting
the Modem’s Downstream Frequency for details.
2.3 DOCSIS Layer
The most important items that must match are:
The XMTS Downstream Frequency and the modem Downstream Frequency
The XMTS Upstream Channel ID and the modem Upstream Channel ID (their
associated parameters must also match.)
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Configuration Overview – p. 22
First, the modem searches for a signal at its preprogrammed Downstream
Frequency. Once having locked to that downstream channel, the modem
receives upstream channel descriptors (UCDs) from the XMTS that describe the
available upstream channels.
NOTE: The XMTS must be configured to construct the
UCDs so that they correspond to the site preplan. Use
the Vyyo Config Tool to accomplish this if any changes
are required.
The modem then enters a protocol exchange that requires data be transmitted
from the modem to the XMTS via an Upstream Channel using its associated
Channel ID (designating the physical interface on the RF Interface card), and the
correct frequency, modulation and bandwidth or symbol rate.
NOTE: A modem configuration file which respecifies
these parameters is downloaded to the modem after
“ranging” (described below) is complete . This file is also
referred to as the modem “boot” file. All further
communication done by the modem uses the parameters
specified in this file. The modem configuration file is
modified using the WMUconfigFileEditor tool. ( WMU
stands for Wireless Modem Unit.)
This protocol exchange allows the modem to ‘range’ (adjust its timing and power
level so that it can work successfully with all of the other modems on line at this
time.). After the ranging is finished, the modem has successfully established
physical layer and Link or MAC layer connectivity with the XMTS. The XMTS is
now capable of sending MAC layer packets such as DHCP and ARP requests
required to complete the registration process.
2.4 IP Layer
Your System Engineer must devise a Network IP Plan. This is required in order
to assign IP addresses to the XMTS and all the modems on the network. It must
include the IP address of all the servers as well as the network mask and other
network parameters.
After connectivity is established at the DOCSIS layer (discussed in Section 2.3
DOCSIS Layer ), the modem is assigned to an IP address by using DHCP
(Dynamic Host Control Protocol.) If using the ipLease tool as the DHCP Server,
this is usually a static IP address defined in the DHCP setup file (CM.SRC.) This
file binds the modem's MAC address to a particular fixed IP address. If using
Windows 2000 Server Edition this binding is accomplished using its DHCP
Administrative Tool, which may be installed at the user’s option using the “netsh”
command (follow the instructions provided with your server).
The DHCP server grants the “lease” on the IP address to the modem (i.e., tells
the modem which IP address to use). The granted IP address is for SNMP
connectivity within the Vyyo system; it is not offered as a public IPaddress to
Vyyo equipment. However, if desired this can be done using the customer PC or
Router as the modem will behave as Layer 2 bridge device.
www.vyyo.com
Configuration Overview – p. 23
For the ipLease DHCP Server tool, the CM.SRC file is an ASCII text file that may
be edited using any text editor (such as Notepad). This document describes the
configuration process using the ipLease tool. The changes are similar for other
DHCP servers. Note that if another operating system, such as the Windows
200x Server, is used a DHCP server is often included. Check with your Vyyo
representative to make sure the DHCP server is compatible.
NOTE: Before the modem can acquire an IP address, the
XMTS must be configured with its own IP address This
procedure is described later in this document in the
section entitled Setting the XMTS IP Address. The XMTS
IP address is specified in a different configuration file
(regtree.rtr) which may be edited using the
wmtsConfigurationFileEditor tool.
After the modem successfully receives its IP address it contacts the TOD server
to establish the time of day. Next, it contacts the TFTP server to download the
modem configuration file, which specifies the final DOCSIS parameters for the
modem. This file is also referred to as the modem “boot” file. All further
communication done by the modem uses the parameters specified in this file.
This file may cause the modem to change frequencies or reboot in order to reset
some of its configuration parameters. The modem will acquire this file every time
it is reset or restarted. Configuration changes to the modem configuration file
(profile) will be done from the Operation center with out the need to visit the
modem remote location for any setup change; These changes may include
encryption, QoS., IP filters, downstream channel parameters. etc….
NOTE: the modem configuration file is modified using the
WMUconfigFileEditor tool..
During the final phase of the DOCIS registration process, the modem sends a
registration message to the XMTS confirming that the configuration file was
received. The XMTS retrieves a copy of the configuration file from the
configuration file server TFTP root repository directory. The XMTS then
compares the file from the server with the data from the modem to ensure that
the modem will only use services for which it was authorized. The modem is then
finally allowed to transmit real user data into the network, but only after the
modem’s configuration file values are crosschecked by the XMTS.
At this point, a data only modem will be successfully connected to the system.
2.5 E1/T1 Layer
After IP connectivity is established, E1 or T1 connectivity may be established.
Note that in addition to installing an E1/T1 card into the XMTS chassis, E1 and
T1 each require that different firmware be loaded into both the XMTS and the
modem.
The E1/T1 configuration will require appropriate changes to the modem
configuration file in addition to setting those configuration parameters used for a
www.vyyo.com
Configuration Overview – p. 24
standard IP-only modem. The same modem configuration file may be used for
several modems provided the Downstream frequencies and the Upstream
Channel ID are the same (i.e., same “profiles”).
The XMTS E1/T1 configuration needs to be modifed appropriately for every
E1/T1 modem installed on the network. This is done using the Java™-based
Vyyo Configuration tool. This tool configures the E1/T1 port on the modem to be
connected (“bound’) to the correct E1/T1 port on the E1/T1 card plugged into the
XMTS.
After this tool is used to bind the E1/T1 ports together and the standard modem
provisioning is done, the installation is complete and the E1/T1 services in the
modem are ready to be activated.
www.vyyo.com
Configuration Overview – p. 25
2.6 Configuration Tools and Files Matrix
Tool
Configured
File or
Device
Description
WMUConfigurationFileEditor
Modem
Configuration
file (e.g.,
“MIC_xxx.cfg”,
where xxx is
some unique
number.)
This file downloads to a modem
during the registration process.
It contains all the parameters
required for the modem’s
operation in the DOCSIS
network: upstream and
downstream frequencies, QoS,
etc. It is also call the modem
“boot” file.
WMTSConfigurationFileEditor
Regtree.txt
Regtree.txt contains the
permanent IP address of the
XMTS. This tool is a
convenient way to edit the file.
However, when changing only a
few lines such as the XMTS IP
address, any text editor will
work.
WMTSConfig
XMTS
Used to assign a temporary IP
address to the XMTS and to
download files to the XMTS.
Specifically it must be used to
download the compiled version
of the Regtree.txt file to the
XMTS. This is primarily used
during initial setup.
Vyyo Configuration Tool
XMTS MIB
database
This is a standalone JAVA
based tool that can be
accessed from the NMS. It is
used to modify and configure
many XMTS parameters. At
present it is the preferred tool
used to configure the XMTS
operating parameters for an
E1/T1 link.
(any standard ASCII text file
editor may also be used to
edit the file)
www.vyyo.com
Configuration Overview – p. 26
Tool
Configured
File or
Device
Description
NMS (Castlerock)
XMTS or
Modem MIB
values
(Typically for
viewing only.)
A general purpose Network
Management System for
operating the network; also
used to launch the Vyyo
Configuration tool to configure
and change XMTS parameters.
Any ASCII text editor, e.g.,
Notepad
CM.SRC
Used with ipLease (the DHCP
server) to bind a modem’s MAC
address to its network IP
address and its modem
configuration file (downloaded
during modem initialization) as
well as other network
parameters needed to configure
the modem.
DHCPGen
CM.SRC
Converts the file to a format that
ipLease can use
DHCP Server
modem
Sends the modem its network
IP address and the name of its
modem configuration file as well
as other information needed to
setup IP connectivity.
TOD Server
modem
Used to set the time of day in
the modem and the XMTS
TFTP Server
modem and
XMTS
Used to send the modem
configuration or “boot” file to the
modem during initialization; also
used to load the XMTS
application and configuration
files
Telnet
Modem
Used to set the downstream
frequency that the modem will
scan to listen to the XMTS.
Also used to set the RF offset if
required.
www.vyyo.com
Configuration Overview – p. 27
Chapter 3. The Modem Initialization
Process
To understand the configuration process, it is useful to understand the
detailed steps the modem goes through during its initialization.
When the modem is first powered up, it must go through a fixed sequence of
steps before it can exchange data with the network. To be successful, this
requires the modem and the XMTS to be configured with various
parameters.
These parameters should be defined in a Network RF Plan and a Network IP
plan set up by your System Engineer. The three Network Servers (TOD,
DHCP, and TFTP) must be installed and operational. The XMTS must be
configured with the correct software and an IP address.
The modem’s RF parameters must also be correctly configured. The modem
must be configured with the correct software and its RF parameters must be
set correctly. When all of this is done, the modem is ready to initialize itself
when placed at the customer’s premise.
Finally, after initialization, the modem’s E1/T1 port must be “bound” (configured
to connect) to the correct E1/T1 port on the XMTS. This step may be done last
or pre-configured before the modem is at the customer’s premise.
The following sections provide an overview of the modem initialization process.
3.1 Modem Initialization Sequence
All modems proceed through the following sequence of steps, each of which
is described in more detail below. The completion of these steps establishes
connectivity at the DOCSIS and IP layers. Connectivity for additional layers,
e.g., E1/T1, may then be established for the V311 and V312 modems. The
steps are:
•
•
•
•
•
•
•
•
•
3.1.1
Power-On Self Test
Downstream Synchronization
Obtain Upstream Parameters
Ranging
Establish IP Connectivity
Establish Time of Day
Transfer Operational Parameters
Registration
Baseline Privacy Initialization
Power-On Self Test
The modem performs a self-check to ensure that its hardware is working
properly.
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The Modem Initialization Process – p. 28
3.1.2
Downstream Synchronization
The modem listens for downstream transmissions from the XMTS (which are
broadcast at frequent intervals for exactly this purpose) according to its preconfigured or default frequency plan. This may be a single fixed frequency
or a sequence of frequencies, depending on the Network RF Plan and/or the
internal programming of the modem.
If the modem is programmed for a single fixed downstream frequency and
fails to receive an XMTS downstream transmission after three attempts it
switches to its additional backup frequencies. See Setting the Modem’s
Downstream Frequency for a description of how to set these parameters.
Synchronization is obtained when the modem locks onto the XMTS
downstream signal and is able to recognize downstream SYNC messages
which are periodically broadcast: these are crucial to calculating the time
slots available for upstream transmission.
3.1.3
Obtaining Upstream Parameters
The modem must now wait to collect all the Upstream Channel Descriptors
(UCDs) for all upstream channels that are connected to the current
downstream channel.
3.1.4
Ranging
The modem then sends a “ranging request” message on one or more of the
Upstream frequencies, corresponding to a UCD, at different power levels in
an attempt to establish communication with the XMTS. Eventually the XMTS
decodes a ranging request from the modem and sends a ranging response.
Ranging is now complete. Whenever the modem needs to send MAC layer
data for IP to the XMTS it sends a “request” to the XMTS. The XMTS
schedules a time slot for the modem and sends a “grant” message back to
the modem that contains all the necessary information telling the modem
when it can transmit data. A similar method is used to send E1 or T1 data
except that the request sets up periodic time slots that the modem uses to
transmit data.
3.1.5
Establish IP Connectivity
The modem uses the “request-grant” (“best effort”) mechanism to send a
standard DHCP request to the Network DHCP server. The server will
recognize the modem via its MAC (Ethernet) address and assign it a
temporary IP address. This response also contains the default gateway and
the IP subnet mask. The IP addresses of the TFTP and ToD servers, and
the name of the modem configuration file are also included. The response
also includes the local time offset from Universal Coordinated Time (UTC).
Once the modem receives this response it sets its IP address to the
designated value and uses the default gateway to talk to devices using its IP
stack.
www.vyyo.com
The Modem Initialization Process – p. 29
3.1.6
Establish Time of Day
The modem uses the ToD server address(es) just received to send a Time of
Day request to the ToD server(s). This is combined with the time offset
received in the DHCP response to calculate the current local time. The Time
of Day is used by both the modem and the XMTS to timestamp logged
events (accessible via the Network Management System).
3.1.7
Transfer Operational Parameters
The modem then requests the TFTP server to send the configuration ( or
“boot”) file named in step (5) above during the establishment of IP
connectivity. If the boot file specifies a different upstream channel and/or
downstream frequency, the modem must repeat its initial ranging using this
new upstream channel and/or downstream frequency.
3.1.8
Registration
In order to forward traffic into the network the modem must be “registered”
with the XMTS. To register, the modem sends the XMTS its class of service
(also called QoS for Quality of Service) and any other operational
parameters it received in the configuration file as part of a Registration
Request. As part of the registration process the modem calculates Message
Integrity Check (MIC) values using the parameters specified in its
configuration file. This must match the values given for those parameters in
the configuration file itself.
3.1.9
Baseline Privacy Initialization (BPI)
If the modem is enabled to run BPI then encryption and decryption keys are
established. All further data to or from the modem is now encrypted. The
keys have a lifetime and are automatically reset to new values after a
specified period which may be set by the operator using the NMS.
NOTE: BPI is required in order to support E1/T1
www.vyyo.com
The Modem Initialization Process – p. 30
Chapter 4. Overview of the XMTS and
Modem Configuration
This section provides an overview of the steps and tools necessary to configure
both sides of the communications link (XMTS and modem) required to add a data
modem or the data portion of a new E1/T1 modem to the network. Several
different tools and files are used as described below.
1. Make sure that the three required servers are installed and
operational: DHCP, ToD and TFTP. For details see Chapter 8,
Installing Vyyo Servers for XMTS Operation. The failure of the
modem to establish communication with any of these three servers
will prevent the modem from completing the registration process.
1.
Review the Network IP Plan and use it to assign an IP address to the
XMTS, then make it permanent by following the procedure in the section
Setting the XMTS IP Address.
2.
Verify that the right software version is loaded into the XMTS as
described in Appendix B. See the “readme” notes in the distribution
software for the version number.
3.
Review the RF plan for the network and configure the XMTS
upstream and downstream channels accordingly using the procedures in
Setting the Upstream Channel. It may not be necessary to configure new
upstream and downstream channels when adding a modem; but if
required, the Vyyo Configuration tool can be used to modify these
parameters.
4.
Review the RF Plan to find out which downstream frequency(ies) and
upstream channel ID(s) the modem will use to communicate with the
XMTS. Use the WMUConfiguration Editor (wmuConfigFileEditor.exe) to
edit the modem configuration file that will be downloaded to the modem
during the modem initialization sequence to reflect these choices and
other needed parameters (e.g., QoS or Class of Service, Max Number of
CPE, BPI Enable/Disable – required for E1/T1, etc.). If you know in
advance that this modem will be used for an E1/T1 connection then
additional edits may be made at this time as described in Chapter 6,
Configuring a T1 Connection.
NOTE: One modem configuration file may be used for
several modems if the same upstream channel ID and
downstream channel are used by all the modems (i.e.,
same “profile”); thus, this step may not be required every
time a new modem is added to the system.
www.vyyo.com
Overview of the XMTS and Modem Configuration – p. 31
5.
NOTE 1: Five T1s per 3.2MHz upstream channel using
16QAM modulation is the hard limit for the current
system. Attempting to configure more T1s on an
upstream channel than it can support will cause the
modem initialization to fail. Consult your system engineer
for advice on the maximum number of modems per
upstream channel ID.
6.
Use the appropriate DHCP tool for your system to bind the modem’s
MAC address to its IP address and modem configuration file. If ipLease
is used, edit and compile the CM.SRC file as needed. If Windows 200x
Server Edition is used then set these values using the graphical user
interface. These procedures are described in section 5.2.2, Windows
200x Server Edition: Modifying the DHCP Options
NOTE: this step is ALWAYS required when adding a
modem
7.
Use the modem’s Telnet server interface to set the modem to a
permanent downstream frequency as described in Setting the Modem’s
Downstream Frequency. Having a permanent (fixed) downstream
frequency (or set of frequencies) expedites the modem initialization
process since the modem does not have to scan multiple downstream
frequencies to find one being transmitted from the XMTS. This does,
however, require some pre-planning of the network to pre-allocate
different downstream frequencies to specific modems. Ask your System
Engineer for details.
NOTE: this step is ALWAYS required when adding a
modem with a fixed permanent downstream frequency
8.
If a T1 connection is being setup then use the procedures in
Configuring a T1 Connection. Configure the XMTS upstream channel ID
for E1/T1 operation and bind the XMTS upstream channel ID to the
modem E1/T1 interface and to bind the modem’s E1/T1 interface to a
particular port on the E1/T1 card plugged into the XMTS (use the Vyyo
Configuration tool for this procedure.)
NOTE: the Vyyo Configuration tool binding operation will
ALWAYS be required when adding a T1 modem. This
step can be done after the modem is installed at the
customer’s site.
9.
Install the modem at the customer site and connect it to the RF
equipment, provide power to the modem and turn it on.
NOTE: This step is ALWAYS required when adding a
modem
www.vyyo.com
Overview of the XMTS and Modem Configuration – p. 32
10.
If the modem is already on and its modem configuration file has been
changed (to bind the E1/T1 ports), then the modem must be rebooted;
although this happens automatically when the DHCP lease expires, it is
more efficient to simply power cycle the modem (unplug and replug the
power connector or switch the modem OFF then ON) to restart the
modem initialization sequence.
11.
If desired, connect the modem’s internal Telnet server to a local
computer system to observe the process on site and verify that the
modem is working correctly.
The POWER and STATUS LEDs should be lit and the LAN & USB, and
RF Link LEDs should be flashing (one at a time) with activity:
12.
If the Power, Status, RF Link, and LAN/USB LEDs are lit, then the modem
has been successfully installed. If one or all of the lights remains unlit, see
Chapter 9, Maintenance and Troubleshooting
www.vyyo.com
Overview of the XMTS and Modem Configuration – p. 33
Chapter 5. Adding a Modem to the
XMTS
NOTE: These instructions are required for all modems.
If you are adding a T1 modem then you must also
perform the step in Chapter 6, Configuring a T1
Connection to finish the installation.
Use the instructions in this chapter to setup a data modem or the data portion of
an E1/T1 modem and configure the XMTS to communicate with it over IP.
This chapter covers the following topics:
1.
www.vyyo.com
Editing the Modem Configuration File describes the steps necessary
to setup the modem configuration file.
Adding a Modem to the XMTS – p. 34
System Configuration Guide
2.
DHCP Settings for the Modem explains how to set (bind) the
modem’s IP address and configuration file using either ipLease or the
Windows 200x Server Edition DHCP Server.
3.
Configuring the XMTS describes how to configure the XMTS
upstream, downstream and QoS parameters. At this time instructions are
provided for using the Vyyo Configuration tool. Older systems use the
Castlerock NMS SNMPc Version 5 Synoptic display interface to change
XMTS parameters. Equivalent instructions for performing these changes
are shown in Configuring the XMTS
4.
Setting the Modem’s Downstream FrequencySetting the Modem’s
Downstream Frequency describes how to set the modem downstream
initial receive frequency via the modem’s internal Telnet server.
5.
Maintenance and Troubleshooting describes how to use the
modem’s internal Telnet server to view the modem’s downstream and
upstream status (current values) and verify correct operation.
5.1 Editing the Modem Configuration File
You will need to edit the modem configuration file to set the XMTS downstream
frequency, upstream channel ID, concatenation and fragmentation capabilities, and
QoS. This file will be downloaded to the modem during its initialization sequence.
NOTE: A separate modem configuration file is required
for each set of upstream and downstream channels. Any
modem may use any configuration file and the same file
may be used by many modems; typically only five T1
modems are assigned to a single 3.2MHz upstream
channel.
5.1.1 Setting the Upstream Channel
Open the WMUconfigFileEditor to edit the modem configuration file to set the
Downstream Frequency and Upstream Channel ID.
Note: If using ipLease, the modem configuration file is
bound to the modem’s MAC address in the CM.SRC file.
If using Windows 200x Server Edition bring up the DHCP
Administrative Tool to find the configuration file to the
mode:
Programs->Administrative Tools->DHCP
For more detailed information, see section 5.2.2,
www.vyyo.com
Adding a Modem to the XMTS – p. 35
System Configuration Guide
Windows 200x Server Edition: Modifying the DHCP
Options
From the main screen shown below select “General Parameters” and then
choose “Upstream Channel ID”.
Right-click on “Upstream Channel ID” and select “MODIFY” to display the popup
window in which you may set the value of the Upstream Channel ID.
Note: The detailed parameters for each upstream
channel must be set in accordance (see Setting the
Upstream Channel)with the overall Network RF Plan –
contact your system engineer for assistance. The
Channel ID is the identifier for the physical RF port on the
RF cards plugged into the rear of the XMTS. The ports
are numbered as follows:
Channel ID = card slot number + port number
Where the card slot number is zero for the leftmost
upstream card (as viewed from the front of the XMTS)
and increases by the ifIndex of the card times eight for
each additional card. The if index of the card can be
found in the ifTable. Please contact Vyyo for the exact
details of this configuration. Typically, the ifIndex
increases from left to right by 1 for each card, from 0 to n,
where n is the rightmost card. The ports are numbered
from bottom to top on each card starting with one. Thus,
the first card has ports numbered from 1 to 6 (since the
Hex upstream card only has six ports even though a
maximum of 8 are allowed) and the second card has its
ports numbered from 9 to 14, etc. Contact Vyyo for
Details.
NOTE 2: See Setting the Upstream Channel to set the
receive frequency of an upstream channel.
www.vyyo.com
Adding a Modem to the XMTS – p. 36
System Configuration Guide
Figure 5-1: Setting Upstream Channel ID
www.vyyo.com
Adding a Modem to the XMTS – p. 37
System Configuration Guide
5.1.2 Setting the Downstream Frequency
In the following example, the Downstream Frequency is changed to 743 MHz.
1.
From the main screen shown below select “General Parameters” and
then choose “Downstream Frequency”.
2.
Right-click on “Downstream Frequency” and select “MODIFY” to
display the popup window in which you may set the value of the
downstream frequency in Hertz (note the six zeroes).
NOTE: This value will be specified by your system
engineer.
Figure 5-2 Setting Downstream Frequency
www.vyyo.com
Adding a Modem to the XMTS – p. 38
System Configuration Guide
5.1.3 Setting Concatenation and Fragmentation Capabilities
1.
Select “Modem Capabilities” and enable “Concatenation” and
“Fragmentation” by setting them to “1” (select each one then right-click to
view the “Set Value” dialog box, enter the value “1” then click “OK”).
NOTE: These should always be used unless specified
otherwise by your system engineer.
Figure 5-3. Setting the Concatenation Value
Figure 5-4. Setting the Fragmentation Value
www.vyyo.com
Adding a Modem to the XMTS – p. 39
System Configuration Guide
5.1.4 Setting Upstream QoS (Class of Service) for IP Data
1.
Select “Class of Service Parameters”
2.
Right-click on “Maximum Upstream Rate” to display a selection of
QoS profiles.
3.
Choose the profile that is appropriate for the installation being done.
Your system engineer can provide assistance based on the Network RF
& IP Plan.
4.
Select a profile in the left side of the popup window to display its
corresponding parameters on the right side.
Figure 5-5. Setting Upstream QoS
www.vyyo.com
Adding a Modem to the XMTS – p. 40
System Configuration Guide
5.1.5 Setting Additional Downstream and Upstream Channels
Use the “Vendor Specific Parameters” option to set additional downstream
frequencies and upstream channels. Your system engineer should tell you if this
is necessary. First enter the Frequency of the Additional Downstream Channel in
Hertz and then enter the associated upstream channel ID (ID of additional
Upstream channels). To add more downstream and upstream frequencies right
click on the “Vendor Specific Parameters” option and select “Duplicate” to bring
up another screen and enter the desired values.
A Downstream Scan Plan value of ‘9’ indicates that the downstream channel is
set to a permanent fixed frequency (the advantage is that the modem initializes
faster and doesn’t interfere unnecessarily with other traffic on the network).
Figure 5-6: Using Vendor Specific Parameters to set additional DS/US pairs
www.vyyo.com
Adding a Modem to the XMTS – p. 41
System Configuration Guide
5.1.6 Setting the Maximum Number of CPEs
It is advisable to set the maximum number of CPEs at this time by selecting and entering
the desired value on the following screen:
Figure 5-7: Setting the maximum number of CPEs
www.vyyo.com
Adding a Modem to the XMTS – p. 42
System Configuration Guide
5.2 DHCP Settings for the Modem
The DHCP Server provides the IP address for the modem and also specifies
which modem configuration file will be downloaded to the modem. In the
following two sections, instructions are provided for setting up two different
DHCP Servers: the ipLease DHCP Server and the Windows 200x Server Edition
DHCP Server. Either of these (or any other) DHCP server may be used (but not
multiple ones at the same time).
5.2.1 IpLease DHCP Server: Editing and running the CM.SRC File
Note: This section applies only if your configuration uses
ipLease™ (purchased separately) as the DHCP server.
Bind the modem MAC Address to its IP Address and modem configuration file by
editing the CM.SRC file.
1.
2.
Locate the CM.SRC file – it is usually in the DHCP tool directory. In
this example we are using ipLease as our DHCP server.
Open the CM.SRC file using any text editor.
Tip: Use Windows Notepad to edit this file.
Figure 5-8. Location of CM.SRC file
www.vyyo.com
Adding a Modem to the XMTS – p. 43
System Configuration Guide
3.
This section of CM.SRC shows IP addresses of all the servers and
their associated parameters. See the comments on each line of the file
shown for details. Your system engineer can tell you how to configure
these addresses.
Figure 5-9: Server Configuration Info on CM.SRC file
www.vyyo.com
Adding a Modem to the XMTS – p. 44
System Configuration Guide
4.
In the [Hosts] section of CM.SRC shown below, four modems are
defined. You may add additional modems here. If they are not defined
here they will be ignored in the next section.
Four modems are defined and
named in the [Hosts] section of
this file.
Figure 5-10. CM.SRC File Format
5.
Add the configuration parameters for each modem as shown below.
Note that even though each modem has a unique bpBootFile filename
this is not typical. This file is the modem’s configuration file. The same
modem configuration file may be used for many modems if they use the
same upstream and downstream channels.
NOTE: a line that starts with a semicolon “;” is interpreted
as a comment and therefore is ignored by the compiler
www.vyyo.com
Adding a Modem to the XMTS – p. 45
System Configuration Guide
Each modem name is defined in square brackets and
followed by its MAC address “Chaddr”, its
“StaticIPAddress” and it “bpBootFile” name (this is
also known as its modem configuration file.)
Figure 5-11. Defining and Naming Installed Modems
NOTE: This file (CM.SRC) must be compiled by
executing the command “dhcpgen cm” from the directory
in which the file is located. Before compilation, the DHCP
Server must be shut down. After compilation the
command “dhcpsvr” must be executed from the same
directory to read the compiled files and restart the
ipLease DHCP server.
6.
www.vyyo.com
If the ipLease DHCP server is running it must be shutdown in order
to reconfigure the IP addresses given in the CM.SRC file. Simply click
on the “SHUTDOWN” button in the upper right pane of the ipLease
application window.
Adding a Modem to the XMTS – p. 46
System Configuration Guide
Click this button
Figure 5-12: DHCP Server Shutdown in ipLease™
www.vyyo.com
Adding a Modem to the XMTS – p. 47
System Configuration Guide
7.
Now change directories to the ipLease directory (in a DOS window)
and type “dhcpgen cm” to generate the machine-readable files for the
ipLease DHCP server. The output should indicate “successful” as
shown below. If not, check to make sure you have shutdown the iplease
server or that you have not mistyped something in the CM.SRC file.
8.
Restart the ipLease server. After compilation the command
“dhcpsvr” must be executed from the same directory to read the
compiled files and restart the ipLease DHCP server.
5.2.2 Windows 200x Server Edition: Modifying the DHCP
Options
Note: This section applies only if your configuration uses
Microsoft Windows 200x Server Edition as the DHCP
server.
Bind the modem MAC Address to its IP Address and modem configuration file by
entering the appropriate information in popup windows. First bring up the DHCP
Administrative Tool by clicking on the “Start” button on the main windows screen
then choosing “Administrative Tools” and finally “DHCP”. See the following
screen shots:
1.
Locate and open the DHCP program by using:
Start->Programs->Administrative Tools->DHCP
The DHCP window should open on the desktop as shown in Figure 5-14:
Expand “Reservations”
www.vyyo.com
Adding a Modem to the XMTS – p. 48
System Configuration Guide
Figure 5-13: Navigate to the DHCP program
2.
www.vyyo.com
Expand the tree in the left window pane and expand “Reservations”
to view all the modems to which DHCP is leasing IP addresses
Adding a Modem to the XMTS – p. 49
System Configuration Guide
Figure 5-14: Expand “Reservations”
3.
www.vyyo.com
Now click “New Reservation” on the “Action” menu (or right-click on
“Reservations” and select “New Reservation”)
Adding a Modem to the XMTS – p. 50
System Configuration Guide
Figure 5-15: Make a “New Reservation” using DHCP
www.vyyo.com
Adding a Modem to the XMTS – p. 51
System Configuration Guide
4.
Enter the required information (see your system engineer for details)
and click the “Add” button.
NOTE: Make sure to select the “DHCP only” radio button
under “Supported Types”.
Figure 5-16: Enter the information for the new reservation
www.vyyo.com
Adding a Modem to the XMTS – p. 52
System Configuration Guide
5.
Now select the new reservation and right-click on the newly added
modem then select “Configure Options” to choose the modem
configuration file that will be downloaded to this modem. Observe that
five Options are shown in the right pane of the main window. These are
the default values.:
Figure 5-17: Navigate to the “Configure Options” action
www.vyyo.com
Adding a Modem to the XMTS – p. 53
System Configuration Guide
6.
Select the “General” tab in the popup window, scroll down to item
“067” and check (and select) the “Bootfile Name” checkbox to enter or
change the “boot” or modem configuration file name.
NOTE: Any of the other options may be changed using
this same procedure. These values must match the
physical setup of the network (as per the Network IP and
Network RF plans) to make the system work. If this
DHCP server is already in operation the default values
should be correct.
Figure 5-18: Enter the “boot” file name
www.vyyo.com
Adding a Modem to the XMTS – p. 54
System Configuration Guide
TIP: You may verify that the modem properties have
been set correctly. Select the modem and right-click to
display the action popup window; then select “Properties”
to display and allow you to verify the modem information
entered previously.
Figure 5-19: Navigate to the Properties display for the selected modem
www.vyyo.com
Adding a Modem to the XMTS – p. 55
System Configuration Guide
Tip: The modem information is displayed in this popup
window.
Figure 5-20: View the Properties for the selected modem
www.vyyo.com
Adding a Modem to the XMTS – p. 56
System Configuration Guide
5.3 Configuring the XMTS
NOTE: Before you can perform this procedure you must
have previously edited the regtree.txt file, compiled it and
downloaded it to the XMTS to set its IP address. See
Setting the XMTS IP Address.
This section assumes that you have previously installed
NMS Version 5.0. See Installing and Uninstalling the
NMS for instructions.
The upstream and downstream channels of the XMTS must be configured before
a modem can communicate with the XMTS.
5.3.1 Setting the XMTS Upstream Parameters
1. Open the Network Management System and double-click on the XMTS
icon to bring up the Network display of the XMTS front panel:
Double click this icon
Figure 5-21: Network display of the XMTS
www.vyyo.com
Adding a Modem to the XMTS – p. 57
System Configuration Guide
2. Select the Configuration tool item from the Vyyo menu.
Figure 5-22: Selecting the Vyyo Configuration Tool from the WMTS Synoptic
Display
3.
4.
Now select the Upstream Channel ID you wish to configure and rightclick the mouse. The Channel ID refers to the physical port on the
upstream RF card that you are configuring. (This connection is described
previously in section to be referenced.
In this example upstream channel 1 is selected and all of its parameters are
displayed in the right pane of the window.
www.vyyo.com
Adding a Modem to the XMTS – p. 58
System Configuration Guide
You may change the frequency the modem is told by the XMTS to transmit
on (labeled “Tx Frequency”), the receive frequency that the upstream RF
port expects to receive the modem’s signal on (this is labeled “Rx
frequency”), its bandwidth, modulation, and the associated downstream
channels, antenna diversity and admin status as needed.
These parameters are transmitted by the XMTS as part of the upstream
channel descriptor (UCD) sent during the DOCSIS modem initialization
process. These parameters should be determined by the system engineer
responsible for the RF planning and are outside the scope of this manual.
Set this to ‘up” to operate this
channel or “down” to turn it off
This XMTS upstream channel
will receive on this frequency
The modem
transmits on
this frequency
These are the XMTS
downstream channels
associated with this
XMTS upstream channel
Figure 5-23: Selecting and Setting Upstream Channel 1 Parameters
5.
www.vyyo.com
Check this box unless your System
Engineer indicates otherwise
Adding a Modem to the XMTS – p. 59
System Configuration Guide
6.
NOTE: “Best effort channel” or “CIR channel” are typically
used for a data-only modem. An “E1 channel” must be
used when the modem supports E1/T1 connections and
data. These settings correspond to the desired SLA
(Service Level Agreement.)
1.
The “Tx backoff” settings control the scheduling algorithms used in
the upstream channel. The default values should be used unless your
system engineer has indicated otherwise.
2.
Ensure that the “Optimize channel parameters” box is checked. This
causes the XMTS to maximize the efficiency of the channel usage for the
different types of modems assigned to it.
3.
Click on the Update button at the bottom of the screen to save the
new settings.
7.
Figure 5-24: Updating the Upstream Channel Settings
www.vyyo.com
Adding a Modem to the XMTS – p. 60
System Configuration Guide
8.
The following popup window will be displayed if the operation was
successful. Click “OK” to proceed.
Should be set to WAN
9.
www.vyyo.com
Figure 5-25: Update successful
Adding a Modem to the XMTS – p. 61
System Configuration Guide
10.
You have now completed configuring the upstream channel. For a
summary of all of the upstream channels click on the “Upstream” item in
the left pane of the window.
Figure 5-26: Viewing the XMTS Upstream Channels Summary
www.vyyo.com
Adding a Modem to the XMTS – p. 62
System Configuration Guide
5.3.2 Setting the XMTS Downstream Parameters
1.
If you have already opened the Vyyo Configuration Too then proceed
to step 3, otherwise open the Network Management System and doubleclick on the XMTS icon to bring up the Network display of the XMTS front
panel:
Double click this icon
Figure 5-27: Network display of the XMTS
www.vyyo.com
Adding a Modem to the XMTS – p. 63
System Configuration Guide
2.
Select the Configuration tool item in the Vyyo menu.
Figure 5-28: Selecting the Vyyo Configuration Tool from the WMTS Synoptic
Display
www.vyyo.com
Adding a Modem to the XMTS – p. 64
System Configuration Guide
3.
4.
Select the XMTS Downstream Channel you wish to configure from
the left side of the window. In this example downstream channel 1 is
selected and all of its parameters are displayed in the right pane of the
window.
Bandwidth, modulation, and other parameters can be changed. Typically the
default values should be used with “Optimize channel parameters” unless
your system engineer indicates otherwise.
These parameters should be determined by the system engineer responsible
for the RF planning and are outside the scope of this manual.
5.
Figure 5-29: Select the downstream channel and change its parameters
www.vyyo.com
Adding a Modem to the XMTS – p. 65
System Configuration Guide
6.
7.
To permanently save the configuration to the XMTS click on the
“Update” button. Press the “OK” button on the popup window to confirm
the update.
Figure 5-30: Updating the XMTS downstream parameters
8.
If the update was successful this dialog box will appear. Click OK to
continue.
Figure 5-31: Update successful
www.vyyo.com
Adding a Modem to the XMTS – p. 66
System Configuration Guide
9.
You have now completed configuring the downstream channel. For a
summary of all the downstream channels click on the “Downstream” item
in the left pane of the window.
Figure 5-32: Viewing the XMTS Downstream Channels Summary
5.4 Setting the Modem’s Downstream Frequency
This section provides details on how to set the downstream frequency that the
modem listens on to begin its initialization sequence. Setting this value greatly
reduces the time it takes for a modem to complete its initialization sequence.
NOTE: the downstream frequency that is set using this
technique will not be saved in the modem until the
modem completes registration.
1. Connect a computer to the RJ45 modem connector using a standard RJ45 patch
cable.
2. Make sure your computer's IP address is set to 192.168.100.xxx, where "xxx" is
any value from 2 to 254. The subnet mask should be 255.255.255.0. You may
use any utility software on your computer that allows you to set these values.
www.vyyo.com
Adding a Modem to the XMTS – p. 67
System Configuration Guide
3. All modems include a Telnet server with a fixed IP address of 192.168.100.1.
Follow the screens below to set the modem Downstream Frequency and view
the Downstream and Upstream settings.
The modem Telnet server has multiple levels of access privileges:
User – the standard level which permits viewing information
Operator – permits changing the downstream frequency
Note: The modem will accept typed settings while
simultaneously displaying and scrolling though feedback
information or messages. This behavior does not affect
setup. At present there is no procedure to turn off the
streaming messages issued by the modem.
4. Enter the password (obtained from your system engineer or a Vyyo
representative) on this screen.
Enter the user password here
when prompted.
Figure 5-33: Log In to the Vyyo WMU Telnet Server
www.vyyo.com
Adding a Modem to the XMTS – p. 68
System Configuration Guide
5. This screen will be displayed after the password is correctly entered:
Figure 5-34: Successful Telnet Login
www.vyyo.com
Adding a Modem to the XMTS – p. 69
System Configuration Guide
6. Type “su operator”, then press return. Now enter the operator’s password
(obtain this from your system engineer or a Vyyo representative) to access the
DOCSIS control commands.
Note: Return to user mode from operator mode at any
time by typing “su user” – no password is required to
return to user mode.
Enter the operator password here
when prompted
Figure 5-35: Switching to the Operator's Permission Level
www.vyyo.com
Adding a Modem to the XMTS – p. 70
System Configuration Guide
7. Change to the DOCSIS Control subdirectory by typing “cd docsis”:
Type “cd docsis” here
Figure 5-36: The “cd docsis” Command
www.vyyo.com
Adding a Modem to the XMTS – p. 71
System Configuration Guide
8. Type “goto_ds xxxxxxxxx” to set the Downstream Frequency, where “xxxxxxxxx”
is the frequency in Hertz.
NOTE: Your system engineer should provide you with
this value. This will now be the permanent fixed
frequency at which the modem will listen for a broadcast
from the XMTS. After a maximum of 30 seconds, the
modem LEDs should light up and remain lit. This
indicates that the modem has locked on to the
Downstream channel, is operating on the appropriate
Upstream channel, and is authorized for operation on the
XMTS.
Enter the frequency here
Figure 5-37: Setting the Frequency to 743 Mhz (or 743000000, i.e., six zeroes)
www.vyyo.com
Adding a Modem to the XMTS – p. 72
System Configuration Guide
9. To view the “operator” commands type “?”. The following figure shows the
“operator” commands.
NOTE: to get help on a particular command type “help
”
Figure 5-38: Executing the “?” command to view the Operator commands
www.vyyo.com
Adding a Modem to the XMTS – p. 73
System Configuration Guide
5.5 Verifying the Modem Downstream and Upstream
Status
1.
View the downstream status after the modem has successfully
completed registration by typing “dsdiag” to verify that the change took
effect and the modem is operating correctly: “QAM = LOCKED” and
“FEC = LOCKED” should appear as the last two lines. You must have
“operator” access rights to do this.
NOTE: this will only happen if the modem is in a place
where it can establish RF connectivity to the XMTS, e.g.,
hooked up to the cable plant.
Figure 5-39: Viewing the Modem Downstream Status
www.vyyo.com
Adding a Modem to the XMTS – p. 74
System Configuration Guide
2.
View the Upstream Status after the modem has successfully
completed registration by typing “usdiag” to verify that the modem is
operating correctly. The parameters should be stable. You must have
“operator” access to do this.
Type “usdiag” here
Figure 5-40: Viewing the Modem Upstream Status
The modem has now established IP connectivity with the XMTS.
www.vyyo.com
Adding a Modem to the XMTS – p. 75
System Configuration Guide
5.6 Using an HTTP Connection to View Modem
Operation
You may also view this information using an HTTP browser such as Internet
Explorer. All modems include an HTTP server at the same address as the
Telnet server. If the modem does not yet have an IP address assigned and
operating (i.e., completed registration), set your browser to browse the URL
http://192.168.100.1/ to get the status information.
Note: In order to use this facility, you must be connected
to the same LAN to which the modem is connected. This
would be 192.168.0.xxx with a subnet mask of
255.255.255.0 in the initial case.
5.6.1 Viewing the internal modem HTML pages:
1.
Open the Web Browser application that is installed on your system.
Figure 5-41: Opening a Browser Window to view modem activity
10.
Type http://192.168.100.1/ into the Address field at the top of the
Browser window and press “Enter”.
Figure 5-42: Entering the modem IP address into the Browser Window
www.vyyo.com
Adding a Modem to the XMTS – p. 76
System Configuration Guide
11.
Obtain the Operator user name and password from your System
Administrator or an authorized Vyyo representative. Enter the user name
and password in the appropriate fields, and click the OK button. The
Vyyo Connection page opens.
Figure 5-43: Entering the modem user name and password
www.vyyo.com
Adding a Modem to the XMTS – p. 77
System Configuration Guide
12.
Each informational page consists of two sections: A Menu box at the
left, which enables you to navigate between pages, and a Data area at
the right, which shows information specific to the system.
5.6.2 Viewing the Connection Page
To view the Connection page click the “Connection” option on the Menu box.
Figure 5-44: Selecting the Browser Connection option
www.vyyo.com
Adding a Modem to the XMTS – p. 78
System Configuration Guide
The browser displays the Connection page which has five areas of information:
•
Startup Procedure
•
Downstream Channel
•
Upstream Channel
•
Assigned IP Address of the Modem
•
Current System Time from the ToD Server.
Figure 5-45: Viewing the Browser Connection page
5.6.3 Viewing the Software Page
To view the Software page click the Software option on the Menu box.
Figure 5-46: Selecting the Browser Software option
www.vyyo.com
Adding a Modem to the XMTS – p. 79
System Configuration Guide
The Software page displays modem Information and Status data.
Figure 5-47: Viewing the Browser Software page
5.6.4 Viewing the Security Page
To view the Security page click the Security option on the Menu box.
Figure 5-48: Selecting the Browser Status option
The browser displays the Security page.
You use the Security page if you wish to change your login password. To change
your Password, enter a new Password in the Password field, and enter it again
for verification in the Re-Enter Password field.
If you want to return to the factory default password, select the Yes option and
click Apply.
www.vyyo.com
Adding a Modem to the XMTS – p. 80
System Configuration Guide
Chapter 6. Configuring a T1
Connection
NOTE: the data connection for the E1/T1 modem must
be setup as previously described in Chapter 5, Adding a
Modem to the XMTS
Three separate tools are necessary to configure a T1 connection:
The WMUconfigFileEditor is used to set the modem QoS (also referred to as Class of
Service) in the modem configuration file downloaded during the modem initialization
phase.
The NMS (Castlerock SNMPc) tool is the Network Management System used to monitor
and reconfigure the network on an ongoing basis. It accesses a MIB database stored in
the XMTS as well as a local version residing in the controlling computer. It is used here
to set specific XMTS parameters by launching the Vyyo Configuration tool.
The Java™-based Vyyo Configuration Tool is necessary to set the E1/T1 parameters
of the XMTS when adding a new modem to the network.
These tools may be used as directed in any order. They are described in the
following sequence:
1.
The WMUconfigFileEditor is used to modify the modem
configuration file for T1 operation by adding a second Class of Service
(the first Class of Service was used for the data only connection).
Instructions are also given for setting/checking the upstream and
downstream parameters (which may have been previously set when
configuring the modem for data only operation).
2.
The NMS tool is used to launch the Vyyo Configuration Tool to set the
XMTS upstream parameters, specifically the QoS (Quality of Service)
which is another name for the Class of Service. For older systems,
Instructions for using the Synoptics interface are given in Chapter 10,
Synoptics Display for XMTS Configuration.
3.
The Vyyo Configuration Tool is required to bind the T1 ports of the
modem to the T1 ports of the XMTS.
www.vyyo.com
Configuring a T1 Connection – p. 81
System Configuration Guide
6.1 Configure the Modem for T1 Operation
In this section instructions are provided for using the WMUconfigFile Editor to
edit the modem configuration file which will be downloaded to the modem. When
the edits on the following pages are complete, copy or move the modem
configuration file to the directory being used by the TFTP Server (usually this will
be something like “C:\vyyo\mic”). You may also save it directly to the TFTP
directory using the “Save” menu option of the WMUconfigFile Editor.
NOTE: This file name must be bound to this modem’s
MAC address by using the appropriate DHCP tool for the
particular system being used (Edit the CM.SRC file if
ipLease is being used. If the Windows 200x Server
Edition DHCP Administrative tool is being used then set
the “bpBootfile” name to the name of the modem’s
configuration file).
1.
Set the Downstream Frequency by selecting “General Parameters”
then double clicking on the “Downstream Frequency (Hz)” parameter as
shown. This is the frequency which the modem will use to receive
(downstream) transmissions from the XMTS. This is the same procedure
described in Setting the Downstream Frequency and is repeated here for
convenience.
Figure 6-1: Set the Downstream Frequency Value
www.vyyo.com
Configuring a T1 Connection – p. 82
System Configuration Guide
www.vyyo.com
Configuring a T1 Connection – p. 83
System Configuration Guide
2.
Set the upstream channel ID using the same procedure. This is the
channel ID the modem will use to transmit upstream data to the XMTS.
The channel ID parameters are sent by the XMTS when it broadcasts
UCDs during the Obtaining Upstream Parameters phase (immediately
after the Downstream Synchronization phase) of the modem initialization
prcocess. This is the same procedure described in Setting the XMTS
Upstream Parameters and is repeated here for convenience.
Figure 6-2. Set the Upstream Channel ID
www.vyyo.com
Configuring a T1 Connection – p. 84
System Configuration Guide
3.
Create a second Class of Service (aka. QoS or Service ID). Select
and right-click “Class of Service”, then select the “Duplicate” option. This
is necessary to add the “Voice” (or “WAN”) service for the T1 connection.
NOTE: the first Class of Service was created previously
for the data only connection. This second Class of
Service is specifically for the T1 connection so make sure
it is setup that way. The same upstream channel is used
for both.
Figure 6-3. Duplicating the QoS Value
www.vyyo.com
Configuring a T1 Connection – p. 85
System Configuration Guide
4.
Observe that a second Class of Service has been added in the left
column of the window.
5.
Select this second Class of Service, then right-click on the Maximum
Upstream Rate parameter and select “Modify” from the popup menu.
Figure 6-4. Modifying the Upstream Bit Rate Value
www.vyyo.com
Configuring a T1 Connection – p. 86
System Configuration Guide
6.
Now select “WAN Service/2048k” from the “Parameter” pane of the
popup window.
Figure 6-5. Choosing an Upstream Bit Rate Parameter
7.
www.vyyo.com
The corresponding parameters will appear on the right side of the
popup window.
Configuring a T1 Connection – p. 87
System Configuration Guide
8.
Now select “WAN Service/2048K” in the left pane of the popup
window and then Click the “OK” button.
Figure 6-6. Choose Profile Setting
9.
The display will return to the main window showing the new values set
above, as shown in Figure 6-7.
Figure 6-7.
www.vyyo.com
Configuring a T1 Connection – p. 88
10.
Select “Modem Capabilities” and turn on “Concatenation” and
“Fragmentation” by setting them to “1” (select each one then right-click to
popup the “Set Value” window) and clicking the “OK” button.
Figure 6-8. Setting Concatenation Value
Figure 6-9. Setting Fragmentation Value
www.vyyo.com
XMTS US Port Mapping – p. 89
Vyyo Installation Guide
11.
The display will return to the main window. The modem configuration
file is now configured for T1 operation. You should save this file. This
filename will be bound to the modem MAC address using the DHCP
Server tool as described in IpLease DHCP Server: Editing and running
the CM.SRC File. The same modem configuration file may be used for
several modems provided the Network RF Plan allows for this; see your
system engineer for details.
Figure 6-10. Main WMU Configuration File Editor Window
www.vyyo.com
Configuring a T1 Connection – p. 90
Vyyo Installation Guide
6.2 Adding the T1 modem to the XMTS T1 Interface and
Assign Port(s)
NOTE: The XMTS Upstream and Downstream
parameters must be configured prior to performing this
procedure. In particular the Upstream “Voice Service
Type” must be set to “WAN” for an E1/T1 channel. See
Configuring a T1 Connection.
1.
Open the Network Management System (NMS) tool and double-click
on the WMTS icon to bring up the the WMTS front panel.
Double-click this icon
Figure 6-11: NMS View of Network Devices
www.vyyo.com
Configuring a T1 Connection – p. 91
Vyyo Installation Guide
2.
Select the Configuration Tool item from the Vyyo menu to start the
Vyyo Configration Tool from the NMS
Figure 6-12: Selecting the Vyyo Configuration Tool
www.vyyo.com
Configuring a T1 Connection – p. 92
Vyyo Installation Guide
3.
When the following window appears you will need to expand the
“XMTS_xxxx” (where xxxx is the xmts’s IP address) and then expand
“Modems” to obtain this more informative version of the window If the
modem is already connected, the tool will detect it automatically and it will
appear in the list under “Modems->E1/T1” or “Modems->Data” by its
MAC address; in this case skip to Step 4. Otherwise you must add the
modem to the list by continuing this procedure:
Figure 6-13: Vyyo Configuration Tool main screen
4.
Select the “Insert” menu option and choose “Modem”
Figure 6-14: Insert Modem
www.vyyo.com
Configuring a T1 Connection – p. 93
Vyyo Installation Guide
5.
A popup window will appear to allow you to enter the modem type.
From the pulldown menu select “E1/T1 Modem”.
Figure 6-15: Select new modem type
A new modem icon will appear on the navigation tree window pane
Figure 6-16: New modem icon
www.vyyo.com
Configuring a T1 Connection – p. 94
Vyyo Installation Guide
6.
Enter the last three bytes of the Vyyo modem MAC address and press
the “Update” button.
Note: The first six bytes of the Vyyo MAC address (the
vendor ID) are displayed both in the navigation tree on
the left and in the data entry window on the right.
Enter the last part of
the Vyyo modem
MAC address here
Press the update button
after entering the MAC
address
Figure 6-17: Vyyo Modem Configuration Information
7.
A popup window will confirm the update. Press “OK”.
Figure 6-18: Confirm update of new modem
www.vyyo.com
Configuring a T1 Connection – p. 95
Vyyo Installation Guide
8.
Now you must add the E1/T1 configuration for the modem by clicking
on the “Add” button.
NOTE: Do this process once for the V311 modems and
twice for the V312 modems (the latter have two E1/T1
ports).
NOTE: the modem does not need to be active on the
network to perform this procedure as this is strictly a
configuration procedure. However, the modem will not
appear under its IP address unless it is already on the
network as a data modem, i.e., the DOCSIS IP portion of
the initialization has been successful.
Figure 6-19: Adding a new E1/T1 configuration for a modem
www.vyyo.com
Configuring a T1 Connection – p. 96
Vyyo Installation Guide
9.
When this screen appears, select the desired port on the XMTS E1/T1
interface card using the drop-down menu and press the “Update” button.
This binds the T1 port on the modem to its corresponding T1 port on the
XMTS E1/T1 interface card (inserted into the rear of the XMTS chassis).
Other parameters may be changed fromt the defaults shown in this
screenshot to create a “fractional T1” connection.
Select the desired XMTS port
using the pull down menu
Select the port – all
assigned ports will
appear (only 1 in
this example)
Click the “Update” button
To make this a fractional T1
connection select the specific T1
slots you wish to use
Figure 6-20: Updating the Port Data
www.vyyo.com
Configuring a T1 Connection – p. 97
Vyyo Installation Guide
10.
Enable the newly added modem using the pull down menu
Figure 6-21: Enabling the newly added modem
www.vyyo.com
Configuring a T1 Connection – p. 98
Vyyo Installation Guide
11.
Now click on the “Update” button and press “OK” when the
confirmation popup window appears.
Figure 6-22: Updating the system for the new modem
www.vyyo.com
Configuring a T1 Connection – p. 99
Vyyo Installation Guide
12.
This screen will show the new modem and its corresponding XMTS
port. It can also be used to change the assigned modem port if the
modem is already connected to an E1/T1 port on the XMTS.
Figure 6-23: Viewing the new modem and its corresponding E1/T1 port
www.vyyo.com
Configuring a T1 Connection – p. 100
Vyyo Installation Guide
13.
For a summary of all modems and E1/T1 ports select the “E1/T1
Interfaces” item on the navigation tree in the left window pane
Figure 6-24: Viewing the E1/T1 Interfaces
At this point you have successfully connected the E1/T1 modem to the system
and data should be flowing between the modem and the XMTS.
www.vyyo.com
Configuring a T1 Connection – p. 101
Vyyo Installation Guide
Chapter 7. Setting the XMTS IP
Address
Note: Prior to performing this procedure the XMTS must
be connected to the “download” computer serial port via
the lower COM port (COM2) on the XMTS Control and
Forward card.
The XMTS must also be connected to the same LAN
subnet as the computer using its RJ45 connector on the
same card.
Tip: This procedure may also be used to download other
files to the XMTS, such as software downloads.
The wmtsConfig.exe tool is used to set a temporary IP address for
the XMTS. This IP address allows the XMTS to appear on the LAN
subnet and communicate with the servers (which are on the same
network).
Next, we will be modifying regtree.txt to contain the permanent XMTS
IP address, then compiling regtree.txt into regtree.rtr and downloading
it. The download is made by specifying regtree.rtr in the “Version File”
field of the wmtsConfig.exe tool and making sure that regtree.rtr is
copied into the TFTP file transfer folder.
14.
Locate the file “regtree.txt” and open it using a standard text editor
such as Notepad. Scroll down (or use the “Find” function from the menu)
to the entry “CmtsIPAddress” which is shown as 10.10.10.210 in this
example. The default network address for Vyyo equipment is
10.10.10.xxx. Your system engineer should be able to provide the
addresses and other parameters you need to configure the XMTS.
15.
Change the “CmtsIPAddress” as desired: this is the XMTS’s
permanent IP address which will be downloaded in the next step.
16.
Change the two lines immediately following this line if necessary: the
“GatewayIPAddress” (the address of the gateway computer or router)
and the “CmtsSubnetMask”.
17.
Change DevNMAccessIP1 and DevNMAccessCommunity for
remote control as appropriate in Regtree.txt. Up to five IP addresses may
be defined here. If you wish to add additional remote computers:
duplicate the three lines for DevNMAccessIP1 and
DevNMAccessCommunity1 and DevNMAccessControl1 for each
additional remote computer, change the numbers so that you have
DevNMAccessIP2, DevNMAccessCommunity2,
www.vyyo.com
Setting the XMTS IP Address – p. 102
Vyyo Installation Guide
DevNMAccessControl2 for the second computer and so forth up to the
fifth remote computer. Then change the corresponding IP addresses for
DevNMAccessIP2 and so forth.
Note: No other edits should be necessary in this file,
although the default frequencies for all the upstream and
downstream channels are initialized in this file and may
be changed if necessary.
Figure 7-1. Regtree.txt File Contents
www.vyyo.com
Setting the XMTS IP Address – p. 103
Vyyo Installation Guide
18.
Now compile regtree.txt by executing SETIP.bat which should be in
the same directory as regtree.txt. SETIP.bat is a batch file that converts
regtree.txt from text to a special format read by the XMTS. The resulting
file will be named RegTree.rtr.
Figure 7-2. Setip.bat
www.vyyo.com
Setting the XMTS IP Address – p. 104
Vyyo Installation Guide
19.
Locate the Regtree.rtr file and copy it to the directory (download path)
that is used by the TFTP server to get the requested download files (the
download directory):
Figure 7-3. Regtree.rtr Location in TFTP Root Directory
www.vyyo.com
Setting the XMTS IP Address – p. 105
Vyyo Installation Guide
20.
Open the TFTP server: in this example we use Pumpkin.exe. You
may bring up the Options dialog window by clicking on the “Options”
button. This will allow you to change the download directory.
Note:The file RegTree.rtr must be copied to
“C:\Vyyo\mic” as shown in this example since this is the
directory where the TFTP server finds the requested files
to be downloaded. You may change this path to suit your
particular directory layout if desired as shown in the next
figure.
Figure 7-4. PumpKIN TFTP Settings
www.vyyo.com
Setting the XMTS IP Address – p. 106
Vyyo Installation Guide
Note: Observe that RegTree.rtr now appears in the TFTP
download directory (C:\Vyyo\mic):
Figure 7-5. Regtree.rtr, Located in TFTP Root or Specified Download Directory
www.vyyo.com
Setting the XMTS IP Address – p. 107
Vyyo Installation Guide
21.
Open the WmtsConfig.exe tool to prepare to perform the download
to the XMTS. This tool is typically located in the “…\Tools\WmtsConfig”
directory of the released software.
22.
When the initial window appears right-click to expose a popup window
from which you must select “Activate”.
23.
This will enable the screen for one minute, after which you must
repeat this procedure to re-activate the screen. The one minute timeout
prevents accidental downloads.
Figure 7-6. WMTS Configuration Tool
24.
After activating this application then select ‘Connect’. This will open a
second small window within which one can choose the type of connection
to open (Serial or IP).
25.
Select the ‘Serial’ and the appropriate computer ‘Com’ port number to
which the XMTS is connected. Then select ‘close’ to close the small
window and return to the main application window.
www.vyyo.com
Setting the XMTS IP Address – p. 108
Vyyo Installation Guide
NOTE: If the IP address of the XMTS is working you may
connect using it instead of the serial port by choosing “IP”
instead of “Serial”. The system is shipped with the
default IP address of 10.10.10.2.
Although not necessary for this download procedure
since it uses the serial connection, you may enter a
temporary XMTS IP address, subnet mask and default
gateway IP address that is on the same subnet as the PC
being used to connect to the WMTS for the XMTS (these
can be the same as the permanent ones in the
RegTree.rtr file). This is useful if the XMTS has not yet
been downloaded with a permanent IP address and you
need (or prefer) to communicate with the XMTS via its
LAN connection.
Alternatively, if the XMTS IP address is already set then
you should verify that it is correct, but you do not need to
set it.
26.
Enter the TFTP Server IP Address and make sure the filename
“regtree.rtr” appears in the “Version File” window. Then click the “Start
Software Download” button.
Setup these
three items
Do this last!
Very important
Figure 7-7. WMTS Configuration Progress
www.vyyo.com
Setting the XMTS IP Address – p. 109
Vyyo Installation Guide
27.
The message below is displayed after the download command is sent
to the XMTS – it does NOT indicate that the download has occurred. To
confirm the download you must observe the indicator LEDs on the XMTS:
they should be flashing with activity. You should also monitor the TFTP
application window to verify that the download to the WMTS has
occurred.
Messages are
displayed here
Figure 7-8. WMTS Download Message
28.
www.vyyo.com
Click the “System Restart” button. The XMTS will now reboot and
read the new RegTree.rtr file to configure itself.
Setting the XMTS IP Address – p. 110
Vyyo Installation Guide
29.
The message in the following figure should display after the System
Restart message is sent.
Figure 7-9. System Restart Message
Note: The WMTSconfig application does not report if the
action is successful, only that the command has been
sent.
30.
www.vyyo.com
To verify that the download has taken effect you must use the
procedure described in Appendix B. Checking the XMTS Version.
Setting the XMTS IP Address – p. 111
Vyyo Installation Guide
Chapter 8. Installing Vyyo Servers for
XMTS Operation
Three servers must be installed before operating the XMTS system.
These servers are in accordance with the DOCSIS standard.
1. Time of Day server
2. TFTP server
3. DHCP server
On the computer connected to the XMTS there is folder named
c:\vyyo\servers. This software was part of the original software installed
from the installation CD. See your system engineer or Vyyo representative
for assistance if necessary.
inside this folder you will find three folders, one each for the TOD, TFTP and
DHCP servers.
8.1 Installing The Time Server:
31.
Go to the TimeSvr folder under c:\vyyo\servers and double click on
the application timeserv.exe. The ToD server should now be running.
Figure 8-1 Time Server Status Window
8.2 Installing the Pumpkin TFTP Server:
1. Navigate to the Pumpkin folder at c:\vyyo\servers\pumpkin (or the
equivalent on your system)
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 112
Vyyo Installation Guide
2. Start the application pumpkin.exe
Figure 8-2. Pumpkin Folder Location
32.
Click OK and follow the instructions on screen to install the TFTP
server.
33.
When done, go to StartProgramsAccessoriesKlever
CoPumKin
Figure 8-3. Location of PumpKIN After Installation
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 113
Vyyo Installation Guide
34.
The following window appears after the application has started:
Figure 8-4. PumpKIN Status Window
35.
Select Options
Figure 8-5. Options Dialog Box
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 114
Vyyo Installation Guide
36.
Change TFTP filesystem root (download path) to where your modem
configuration file will be located. In our case it will be under c:\vyyo\mic.
37.
Make sure to select “Read Request Behavior and Write Request
Behavior” to Give/Take all files.
38.
Click OK
8.3 Installing IPLease DHCP Server:
NOTE: if you are using the DHCP Server program from
Windows 200x Server Edition please see Section 5.2.2
Windows 200x Server Edition: Modifying the DHCP
Options.
1. Before you can execute the DHCP application, you need to make
sure that your computer IP address is configured statically to
10.10.10.1, subnet mask of 255.255.255.0. These are the defaults,
see your system engineer for the addresses corresponding to your
Network IP Plan.
2. Go to the folder iplease that is located under c:\vyyo\servers\iplease.
In the folder, there are 4 important files that will configure your
iplease DHCP server.
•
dhcpsvr.ini (the DHCP server configuration file)
•
cm.src (the file that contains the information sent to the modems)
•
dhcpgen.exe (the application that processes the CM.SRC file into a
format readable by the DHCP server)
•
dhcpsvr.exe (the DHCP server application)
8.3.1 dhcpsvr.ini
This file sets the computer (DHCP Server) IP address and subnet
identification number. These should be set according to your IP address
plan set up by your system engineer. You may edit this file using any ASCII
text editor, e.g., Notepad.
NOTE: the SubnetNum is actually the network number
on which the DHCP server resides – see the comment in
the file displayed below.
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 115
Vyyo Installation Guide
Figure 8-6. DHCPSVR.ini File
1. Set the computer’s DHCP server IP address in the
ServerIPAddr= field.
39.
Set your network identification in the SubnetNum=xx.xx.xx.xx field.
40.
Save this file after completing your changes
8.3.2 cm.src
The cm.src file maps the modem MAC address to an IP address and binds
the modem MAC address to a specific modem configuration file. It also
provide the default addresses for the gateway, TFTP server and ToD server.
NOTE: The lines beginning with a semicolon “;” are
comments
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 116
Vyyo Installation Guide
Figure 8-7. CM.SRC File Format
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 117
Vyyo Installation Guide
Figure 8-8. CM.SRC File Format (Continued)
1. Comments in the cm.src file are annotated with */
2. After editing the cm.src file, save your changes.
8.3.3 Dhcpgen
Note: Your computer must be configured with the correct
IP address, i.e., the same one as in the dhcpsvr.ini file.
(10.10.10.1in this example) before using dhcpgen
1. cm.src must be compiled with dhcpgen for use with the IPLease
DHCP server. Dhcpgen must be run in a DOS window.
2. On the Start Menu, choose Run…
3. Type cmd and click the OK button.
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 118
Vyyo Installation Guide
Figure 8-9. The Run... Dialog Box
41.
Navigate to the IPLease folder by executing the following command:
cd \; cd vyyo; cd servers; cd iplease
Figure 8-10: Navigating to the iplease directory
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 119
Vyyo Installation Guide
42.
Type dhcpgen cm and press the Return or Enter key. The second
parameter is the name of the .src file the dhcpgen will convert (compile)
into a format usable by the DHCP server (this is called the ipLease
format).
The second to last line informs you if the it has completed successfully. If
the compilation reports an error you must re-edit the CM.SRC file and
recompile it and repeat this process until it executes successfully.
Otherwise the DHCP will not be using the correct data.
Figure 8-11: Successfully compiled CM.SRC file
NOTE: If this is a new installation then the DHCP server
should not be running. For existing installations, the
ipLease DHCP server must be shutdown as shown in the
instructions below.
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 120
Vyyo Installation Guide
43.
To shutdown the iplease server click on the Shutdown button in the
upper right window pane of the application as shown below:
44.
Figure 8-12: ipLease Server Shutdown
8.3.4 DhcpSvr:
After completing section 6.3.3, open the IPLease folder and start
DhcpSvr.exe. The ipLease application window will be the same as in Figure
8-12 above.
www.vyyo.com
Installing Vyyo Servers for XMTS Operation – p. 121
Vyyo Installation Guide
Chapter 9. Maintenance and
Troubleshooting
9.1 Introduction
The XMTS is an IP centric two-way RF system, which incorporates various
information technologies and RF devices. When the system is not operating
properly, the malfunction must be isolated to localize the problem to a single
functional area.
The troubleshooting process consists of three basic steps:
Identifying the problem,
Diagnosing the problem, and
Implementing a solution.
To identify a problem, you have to ask two questions:
1) When does the problem occur?
2) What else is affected?
For example, when none of the modems respond to an SNMP request, it can be
assumed that the WMTS or the RF components at the base station are not
functioning properly. Try to find out if the problem is on the downstream or
upstream path. If only a certain modem does not respond, it can be assumed
that the problem relates to the subscriber site, or an NMS software setting for
that particular subscriber.
If you have identified the problem, you are ready to diagnose its cause and take
the necessary actions to solve the problem.
When implementing solutions, change one thing at a time, if possible. If the first
solution does not solve the problem, reverse the change you just made and try
another solution. For example, you are experiencing problems in one of the
upstream sections. To solve the problem, replace the demodulator card. If the
problem still remains, replace the old card and try another solution.
Some of the symptoms can be related to a certain functional area, some not. Use the
system block diagram in the next section Troubleshooting the RF Frontend to relate the
problem to a certain area.
9.2 Troubleshooting the RF Frontend
9.2.1 General
The RF frontend contains the upstream and downstream channel converters and
amplifiers.
www.vyyo.com
Maintenance and Troubleshooting – p. 122
Vyyo Installation Guide
Use a spectrum analyzer and RF power meter to perform tests.
A typical basic RF setup is illustrated in Figure 9-1. Please use the specific block
diagram for your system when you are troubleshooting problems
9.2.2 Checking the Downstream
Perform the following steps to isolate a problem on the downstream channel of the RF
frontend:
a. On the transmitter RF power meter - Check the transmit power on the downstream transmitter, to verify the
RF output
- Test the reflected power (SWR), to verify that the transmitter is connected to the
coaxial system correctly.
b. XMTS
- Measure the output power of the demodulator card. Use a spectrum
analyzer tuned to 44 MHz, with a span of 20 MHz. . The power
should be 10 dBm ±5 dB.
www.vyyo.com
Maintenance and Troubleshooting – p. 123
Vyyo Installation Guide
9.2.3 Checking the Upstream
Perform the following to isolate a problem on the upstream channel of the RF
frontend:
Measure the output power of the downconverter. Use a spectrum
analyzer tuned to the upstream channel IF (about 44 MHz), with a span of
20 MHz.
The following diagram illustrates a basic RF test setup.
Cable Plant
Antenna
Antenna
Coaxial Cable
Coaxial Cable
Power Combiner
Coaxial Cable
Downconverter
Cable Modem
LNA
Coaxial Cable
Coaxial Cable
100BaseT
Filter
Customer Equipment
Tx Upconverter
and Power Amp
WMTS
Coaxial Cable
100BaseT
Switched Hub
Internet Router
NMS Station and
IP Servers
Figure 9-1: Basic RF Setup
www.vyyo.com
Maintenance and Troubleshooting – p. 124
Vyyo Installation Guide
Chapter 10. Troubleshooting The
Subscriber Site
10.1 Post-Registration Verification
When the modem registration process has reached completion, connect the
Laptop or PC to the V280 WMU and verify the following items:
Verification Item
Task
Check the IP address.
From the Windows Command Prompt,
ipconfig or winipcfg to view the
configuration.
Open the Web Browser and verify that
there is proper Internet access.
Perform relevant system
speed verification tests.
See your System Administrator to install
and use a speed verification utility.
Note: BWA system-specific variables can affect all these troubleshooting
steps. Consult your System Administrator or Vyyo representative for
further troubleshooting guidance and detail.
10.2 Physical Layer Troubleshooting
If you experience difficulties operating the modem, there may be problems with
the modem’s physical layer. Inspect the WMU physical layer by means of the
following steps:
Verification Item
Task
Power supply connection
Verify that the WMU power supply is
connected to the WMU power input.
Radio connection
Verify that the RF cable connector is
connected to the WMU RF input.
Connection to the testing
PC
Verify that the WMU Ethernet port LED is
illuminated and that the LAN cable is
connected to a working Ethernet port on
the testing PC.
10.3 IF Layer Troubleshooting
If the modem powers up, but still is not transmitting or receiving a signal, you
may need to check the IF Layer.
www.vyyo.com
Troubleshooting The Subscriber Site – p. 125
Vyyo Installation Guide
Use the following steps to troubleshoot the RF layer:
Verification Item
Task
Signal amplitude
Connect the SLM to the IF input cable.
Set the SLM to the appropriate known DS
frequency and measure the amplitude in
dBmV.
Verify that the peak amplitude of the IF
signal is compliant with the WMU input
signal level specification. If no signal is
present, verify that the radio transceiver
was installed according to the
manufacturer’s installation procedures.
Transceiver power
supply
Verify that the transceiver power supply is
operational and connected correctly.
10.4 Troubleshooting the NMS
If the main SNMPc window does not show the three parts of the panned window
(left, right and bottom), try to drag the pan bar. If this fails:
Exit SNMPc 5.0
1)
Rename
\SSFAdministrator.ssf
to be \SSFAdministrator.ssf_
2)
Run SNMPc 5.0
If SNMPc 5.0 installation is stuck, restart the computer and try again
If SNMPc 5.0 gets corrupted (has been installed but fails to work):
Report error messages and other relevant datails to Vyyo NMS team
3)
Uninstall SNMPc, according to instructions (see Apdx C.4, Uninstalling
the NMS)
4)
Reinstall the NMS according to instructions
5)
If a ‘low virtual memory’ message appears:
Close unneeded applications
6)
If the message reoccurs, report to Vyyo NMS team, close the NMS main
window and startup the NMS
10.5 Repairs Safety
1.
Repairs of WMTS should take place only in VYYO company service
laboratories or in other VYYO formally approved distributors service laboratories.
In case of field handling our general SAFETY warning is to disconnect the unit
from power supply for safest repair.
www.vyyo.com
Troubleshooting The Subscriber Site – p. 126
Vyyo Installation Guide
2.
In case of a -48VDC operated WMTS, the External Circuit Breaker
(Du Pole) must be used before connection/removal of the power cable to/from
the WMTS.
www.vyyo.com
Troubleshooting The Subscriber Site – p. 127
Vyyo Installation Guide
Chapter 11. Synoptics Display for
XMTS Configuration
This chapter explains how to use the older Synoptics Display interface to set upstream
and downstream parameters for the xTMS.
NOTE: Before you can perform this procedure you must
have previously edited the regtree.txt file, compiled it and
downloaded it to the XMTS. See Setting the XMTS IP
Address.
This procedure is to be used only if you cannot configure
the XMTS using the Vyyo Configuration tool as described
in 5.3 Configuring the XMTS.
11.1 Setting the XMTS Upstream Parameters
1. Open the Network Management System and double-click on the XMTS
icon to bring up the Network display of the XMTS front panel:
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 128
Vyyo Installation Guide
Double click this icon
Figure 11-1: Network display of the XMTS
2. Now select the Upstream Channel ID you wish to configure and right-click
the mouse. This is a “Synoptics” display of the actual front panel of the
XMTS. Observe that there is only one (Hex) upstream card in this
example: There are six ports, each one having its own unique upstream
channel ID. In this example the channel IDs are the same as the port
number. However, if a second Hex card were installed its channel IDs
would be numbered from 9 to 14 and they would correspond to ports 1
through 6 on the second card – note that this allows for 8 channel IDs per
Hex card even though only 6 are actually used.
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 129
Vyyo Installation Guide
Figure 11-2: Selecting Upstream Channel 3
45.
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 130
Vyyo Installation Guide
3. When Options dialog box for the selected channel appears click on
“Change channels parameters” to display a popup window for the
selected upstream channel ID.
Figure 11-3: Options for Upstream Channel 3
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 131
Vyyo Installation Guide
4. Using this popup window, you may change the frequency the modem is
expected to transmit on (labelled “Frequency”), the receive frequency that
the upstream RF port expects to receive the modem’s signal on (this is
labelled “Rx frequency”), its modulation, symbol rate and the associated
downstream channel, antenna diversity and admin status as needed.
These parameters are transmitted by the XMTS as part of the upstream
channel descriptor (UCD) sent during the DOCSIS modem initialization
process. These parameters should be determined by the system
engineer responsible for the RF planning and are outside the scope of
this manual.
Set this to ‘up” to operate this
channel or “down” to turn it off
The modem transmits on this frequency
Link LayerDOCSIS parameters
RF DOCSIS parameters
This XMTS upstream channel is set to
receive on this frequency
This is the XMTS downstream channel
associated with this XMTS upstream
channel
Check this box unless your System
Engineer indicates otherwise
Check this box and click on “OK” to
save these upstream parameters
permanently in the XMTS memory
Figure 11-4: Upstream Channel Parameters
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 132
Vyyo Installation Guide
5. Click on the “QoS” tab to display the Quality of Service screen and check
the appropriate QoS box. “Best effort channel” or “CIR channel” are
typically used for a data-only modem. An “E1 channel” must be used
when the modem supports E1/T1 connections and data. These settings
correspond to the desired SLA (Service Level Agreement).
6. The “Tx backoff” settings control the scheduling algorithms used in the
upstream channel. The default values should be used unless your
system engineer has indicated otherwise.
7. Ensure that the “Optimize channel parameters” box is checked. This
causes the XMTS to maximize the efficiency of the channel usage for the
different types of modems assigned to it. Check the “Save WMTS
configuration” box and click on the “OK” button to permanently
reconfigure the XMTS with these settings.
Note: This box is used for both E1 and T1 connections.
Check this box unless your System
Engineer indicates otherwise
Figure 11-5: Editing QoS for Upstream Channel
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 133
Vyyo Installation Guide
11.2 Setting the XMTS Downstream Parameters
1. Open the Network Management System and double-click on the
XMTS icon to bring up the Network display of the XMTS front panel:
Double click this icon
Figure 11-6: Network display of the XMTS
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Synoptics Display for XMTS Configuration – p. 134
Vyyo Installation Guide
Now select the XMTS downstream channel to be configured by right-clicking the
desired channel on the Synoptics display as in previous screens. This image
shows that there are four downstream channels on the card (hence the name
“Quad” card ).
Figure 11-7: Select the downstream channel to be configured
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Synoptics Display for XMTS Configuration – p. 135
Vyyo Installation Guide
46.
Right-click on the selected downstream channel and then select
“Change channels parameters”.
Figure 11-8: The popup menu displayed when right-clicking on the downstream
channel
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Synoptics Display for XMTS Configuration – p. 136
Vyyo Installation Guide
47.
Make any necessary changes to the downstream channel parameters
here. Typically the default values should be used with “Optimize channel
parameters” unless your system engineer indicates otherwise. To
permanently save the configuration to the XMTS check the “Save WMTS
configuration” box and click “OK”.
48.
Figure 11-9: View and change downstream parameter
www.vyyo.com
Synoptics Display for XMTS Configuration – p. 137
Appendix A.
Mapping
XMTS US Port
The following figure shows a rear view of the XMTS with several upstream RF
cards. The numbering proceeds from right to left and allows for eight channels
on each card even if the card does not have eight physical connections. Logical
ports are also referred to as “interfaces”.
NOTE: the downstream port mapping is similar except
that the first Logical Port is number 2.
www.vyyo.com
XMTS US Port Mapping – p. 138
Vyyo Installation Guide
Appendix B.
Version
Checking the XMTS
The version number may be easily checked by using the WmtsConfig tool
shown in the figure below: right click on any open area in the main window to
display the popup shown, and then click on “Activate” followed by “Connect”.
This establishes communication between the WmtsConfig tool and the
XMTS. Now click on “Version Check (WMTS)” in the popup window. See
Setting the XMTS IP Address for instructions on using the WmtsConfig tool.
1.
Right click in the main window on any open space and then click in
“Activate” on the popup menu.
Figure B-1: Viewing the WmtsConfig tool-Activate
www.vyyo.com
Checking the XMTS Version – p. 139
Vyyo Installation Guide
2.
Now click on “Connect” in the main window and when the popup
menu appears, verify or set the IP address as needed, and click on
“Connect” then “Close”. A message will appear in the main window
indicating if the connect command was sent.
NOTE: the “Activate” command automatically closes the
XMTS connection after approximately 60 seconds – this
may cause a message like “Inconsistent WMTS Version”
to appear in the message window. If this occurs just right
click and select “Activate” again then “Connect” then
“Version Check (WMTS)”.
Figure B-2: Connecting to the XMTS
www.vyyo.com
Checking the XMTS Version – p. 140
Vyyo Installation Guide
3.
Right click in the open space in the main menu to bring up the popup
menu and select “Version Check (WMTS)”. The XMTS version will be
shown in the message window.
Figure B-3: Viewing the XMTS Version
www.vyyo.com
Checking the XMTS Version – p. 141
Vyyo Installation Guide
Appendix C.
Installing and
Uninstalling the NMS
C.1 First Time Installation
Unzip the installation ZIP file
Invoke INSTALL.CMD
When Java is installed choose "Typical" (use defaults)
On SNMPc-5 installation choose:
Server
No Discovery Seed
Check the "Start with discovery off"
Note:
When using Windows XP, you must extract the installation zip file. Don't run the
install from within the zip file.
C.2 Invoking Vyyo NMS
The NMS is launched automatically when you start SNMPc
C.3 Installation Upgrade
Run install.cmd
On the SNMPc installation wizard, choose "Upgrade SNMPc"
www.vyyo.com
Installing and Uninstalling the NMS – p. 142
Vyyo Installation Guide
C.4 Uninstalling the NMS
1. Un-install all Java versions from the machine.
2. Stop the MySql service
3. Uninstall mySql
4. Verify that mySql is uninstalled: go to the services window and make sure there
is no mySql service on it
If there is, run regedit and remove all entries related to mySql (if you get "can't
delete" errors - ignore them)
5. Reboot to continue
6. Un-install SNMPc and delete the SNMPc directory
Reboot.
www.vyyo.com
Installing and Uninstalling the NMS – p. 143
Vyyo Installation Guide
INDEX
[Hosts] in CM.SRC ...................................... 43
Additional Channels, Setting....................... 38
Castlerock SNMPc ...................................... 79
Checking the XMTS Version..................... 137
CM.SRC....................................................... 40
CmtsIPAddress........................................ 100
CmtsSubnetMask .................................... 100
Concatenation and Fragmentation, Setting
the............................................................ 36
DevNMAccessCommunity ..................... 100
DevNMAccessIP1 .................................... 100
DHCP Server............................................... 18
DHCP Settings, Modem........................ 32, 40
Dhcpgen..................................................... 116
dhcpsvr.ini.................................................. 113
DOCSIS ....................................................... 10
DOCSIS Layer............................................. 19
Downstream Frequency, Setting the .......... 35
E1/T1............................................................ 28
E1/T1 Layer ................................................. 21
GatewayIPAddress.................................. 100
HTTP, Using to view modem Operation..... 74
Initialization .................................................. 25
IP Layer........................................................ 20
IpLease .................................................. 40, 88
IPLease DHCP Server, Installing the ....... 113
Maximum Number of CPEs, Setting........... 39
Modem Capabilities..................................... 17
Modem Downstream and Upstream Status,
Verifying .................................................. 72
Modems ....................................................... 13
Network Servers.......................................... 18
NMS ............................................................. 79
www.vyyo.com
NMS, Installing.....................................55, 140
NMS, Uninstalling ................................55, 140
PSTN........................................................7, 15
QoS (Quality of Service, Setting the ...........37
RegTree.rtr................................................102
regtree.txt..................................................102
Repairs .......................................................124
RF Link Layer...............................................18
SETIP.bat ..................................................102
Status LEDs .................................................30
Synoptics..............................................79, 126
T1 Connection, Configuring ........................79
TFTP server ...............................................104
TFTP Server ................................................18
TFTP Server, Installing the .......................110
Time Server................................................110
Time-of-Day (TOD) Server ..........................18
Upstream Channel, Setting the.......28, 32, 33
V280 .............................................................13
V311 .............................................................14
V312 .............................................................15
Vyyo Configuration Tool...........................79
Windows 200x Server, DHCP Settings29,
33, 46, 113
WmtsConfig.exe.......................................106
WMUconfigFileEditor ................................79
XMTS .....................................................10, 11
XMTS IP Address, Setting the ..................100
XMTS T1 Interface.......................................89
XMTS US Port Mapping ............................136
XMTS, Configuring ......................................55
Index – p. 144

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