Avaya TDM User Manual

BayRS Version 14.10 Part No. 309426-14.10 Rev 01

January 2000 4401 Great America Parkway

Santa Clara, CA 95054

Configuring TDM Services

and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products specified in this document. The information in this document is proprietary to Nortel Networks NA Inc.

The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license. A summary of the Software License is included in this document.

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Nortel Networks NA Inc. Software License Agreement

NOTICE: Please carefully read this license agreement before copying or u s in g the accompanying software or installing the hardware un it with pre-enabled software (each of whic h is re fe rred to as “So ftwa re” i n th is Ag reeme nt ). BY COPYING OR USING THE SOFTWARE, YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT. THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH NORTEL NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE. If you do not accept these terms and conditions, return th e product, unused an d in the original ship ping container, within 30 days of purchase to obtain a credit for the full purchase price.

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responsible for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files, data, or programs.

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Preface

Before You Begin .............................................................................................................. xi

Text Conventions ..............................................................................................................xii

Acronyms ........................... .......................... .......................... ......................... .................xiii

Hard-Copy Technical Manuals ..................................................... ....................................xiv

How to Get Help ..............................................................................................................xiv

Chapter 1 Understanding TDM

Overview of TDM ............................ ...... ....................................... ...... ....... ...... ....... ...... ...1-1

TDM Circuits ...................................................................................................................1-1

Switched H.110 TDM Circuits ..................................................................................1-2

CES H.110 TDM Circuits .........................................................................................1-2

The Role of CES .............................................................................................................1-2

The TDM and ATM Connection ......................................................................................1-3

Where to Go Next ...........................................................................................................1-3

Chapter 2 Customizing TDM

Starting Configuration Tools ...........................................................................................2-2

Default TDM Configuration Parameters ..........................................................................2-2

Making a Switched H.110 TDM Circuit Connection ........................................................2-3

Making a CES H.110 TDM Circuit Connection ...............................................................2-6

Disabling or Reenabling Data over a TDM Circuit ........................................................2-13

Setting the Clock Standard ...........................................................................................2-14

Choosing the Clock Source ..........................................................................................2-15

Partitioning the Timeslots .. ...... ....... ...... ....... ...... ....................................... ...... ....... ...... .2-1 6

Determining the Number of Timeslots ..........................................................................2-18

Setting the Data Rate in the Timeslots .........................................................................2-19

Where to Go Next .........................................................................................................2-21

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Chapter 3 Video Conferencing

Hardware Requirements .................................................................................................3-1

Setting Up a Video Conference ......................................................................................3-3

Where to Go Next ...........................................................................................................3-3

Appendix A Site Manager Parameters

Circuit TDM Resource Parameter ........................................................................... A-2

TDM Global Parameters .......................................................................................... A-2

Dual Synchronous PMC Parameters ...................................................................... A-3

Appendix B BCC Show Commands

show dsync config ......................................................................................................... B-2

show dsync stats ........................................................................................................... B-3

show switched-h110 config ............................................................................................ B-3

show switched-h110 stats .............................................................................................. B-4

show tdm h110 clock ..................................................................................................... B-5

show tdm partition ......................................................................................................... B-5

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Figures

Figure 1-1. Relationship Between ATM, TDM, and CES. ...........................................1-3

Figure 3-1. Sample Video Conferencing Session Using TDM ...................................3-2

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Tables

Table 2-1. Default TDM Global Configuration Parameters ........................................2-2

Table 2-2. Default TDM Circuit Parameters ..............................................................2-2

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Preface

This guide describes time division multiplexing (TDM) and what you do to customize TDM services on a Nortel Networks

™

router.

You can use the Bay Command Console (BCC TDM on a router. In this guide, you will find instructions for using both the BCC and Site Manager.

Before You Begin

Before using this guide, you must complete the following procedures. For a new router:

• Install the router (see the installation guide that came with your router).

• Connect the router to the network and create a pilot configuration file (see

Quick-Starting Route rs, Conf iguri ng BayS tac k Remot e Acces s, or Connecting ASN Routers to a Network).

Make sure that you are runni ng the latest version o f Nortel Netw orks BayRS Site Manager software. For information about upgrading BayRS and Site Manager, see the upgrading guide for your version of BayRS.

™

) or Site Manager to configure

™

and

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Configuring TDM Services

Text Conventions

This guide uses the following text conventions:

angle brackets (< >) Indicate that you choose the text to enter based on the

description inside the brackets. Do not type the brackets when entering the command.

Example: If the command syntax is:

ip_address

ping ping 192.32.10.12

>, you enter:

bold text

Indicates command names and options and text that you need to enter.

Example: Enter Example: Use the

show ip {alerts | routes}.

command.

dinfo

braces ({}) Indicate required elements in syntax descriptions

where there is more than one option. You must choose only one of the options. Do not type the braces when entering the command.

Example: If the command syntax is:

show ip {alerts | routes} show ip alerts or show ip routes

, you must enter either:

, but not both.

brackets ([ ]) Indicate optional elements in syntax descriptions. Do

not type the brackets when entering the command. Example: If the command syntax is:

show ip interfaces [-alerts] show ip interfaces

, you can enter either:

show ip interfaces -alerts

ellipsis points (. . . ) Indicate that you repeat the last element of the

command as needed.

xii

Example: If the command syntax is:

ethernet/2/1 [< ethernet/2/1

parameter> <value

and as many parameter-value pairs as

needed.

>] . . . , you enter

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Preface

italic text Indicates file and directory names, new terms, book

titles, and variables in command syntax descriptions. Where a variable is two or more words, the words are connected by an underscore.

Example: If the command syntax is:

show at <

valid_route

is one variable and you subst itute one value

for it.

screen text Indicates system output, for example, prompts and

system messages.

Acronyms

Example:

Set Trap Monitor Filters

separator ( > ) Shows menu paths.

Example: Protocols > IP iden tifi es the IP optio n on the Protocols menu.

vertical line (

) Separates choices for command keywords and

arguments. Enter only one of the choices. Do not type the vertical line when entering the command.

Example: If the command syntax is:

show ip {alerts | routes} show ip alerts

show ip routes

This guide uses the following acronyms:

AAL 1 ATM adaptation layer 1 ATM asynchronous transfer mode CBR constant bit rate

, you enter either:

, but not both.

CES circuit emulation services LSB least significant bit MIB management information base MSB most significant bit

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Configuring TDM Services

PCI peripheral component interconnect PMC PCI mezzanine card PVC permanent virtual circuit TDM time division multiplexing WAN wide area network

Hard-Copy Technical Manuals

You can print selected technical manuals and release notes free, directly from the Internet. Go to support.baynetworks.com/library/tpubs/. Find the product for which you need documentation. Then locate the specific category and model or version for your ha rdware or so ft ware pr oduct. Using Adobe Acrobat Reader, you can open the manuals and releas e notes, search for the sections you ne ed, and print them on most standard printers. You can download Acrobat Reader free from the Adobe Systems Web site, www.adobe.com.

You can purchase selected documentation sets, CDs, and technical publications through the collateral catalog. The catalog is located on the World Wide Web at

support.baynetworks.com/catalog.html and is divided into sections arranged

alphabetically:

• The “CD ROMs” section lists available CDs.

• The “Guides/Books” section lists books on technical topics.

• The “Technical Manuals” section lists available printed documentation sets.

How to Get Help

If you purchased a service contract for your Nortel Networks product from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller for assistance.

xiv

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Preface

If you purchased a Nortel Networks service program, cont act one of the fol lowing Nortel Networks Te chnical Solutions Centers:

Technical Solutions Center Telephone Number

Billerica, MA 800-2LANWAN (800-252-6926) Santa Clara, CA 800-2LANWAN (800-252-6926) V al bon ne, Fran ce 33-4-92-96-69-68 Sydney, Australia 61-2-9927-8800 Tokyo, Japan 81-3-5402-7041

309426-14.10 Rev 01

Overview of TDM

Time division multiplexing (TDM) is a method in w hich a transmission devi ce is multiplexed among a number of channels by allocating the devi ce to the channels on the basis of timeslots. Timeslots are assigned so that each transmitting device gets its requir ed sha re of the avail able bandwidt h. Beca use of thi s ti me-bandwi dth multiplexing technique, TDMs are protocol insensitive and can combine various protocols onto a single high-speed transmission link.

Chapter 1

Understanding TDM

Some devices, such as voice and video systems, may require more timeslots to ensure that data arrives at the distant link-end without becoming distorted from slower data rates.

TDM technologies are avail able on the Passpor t 5430 t o route TDM data betwe en the dual synchronous PMC modules and the ATM (asynchronous transfer mode) super-serial daughterboard.

TDM Circuits

You can establish two different types of TDM circuits:

• A switched H.110 TDM circuit

• A circuit emulation services (CE S) H.110 TDM circuit

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1-1

Configuring TDM Services

Switched H.110 TDM Circuits

Switched H.110 TDM circuits allow you to establish a connection between two dual synchronous connectors. You use this type of circuit primarily for local connections.

CES H.110 TDM Circuits

CES H.110 TDM circuits connect an ATM permanent virtual circuit (PVC) to an H.110-connected device. CES H.110 TDM circuits transmit TDM data over an ATM network using Circuit Emulation Services (CES). When you use th is type of circuit, you must configure CES on an ATM PVC to emulate TDM functionality on that ATM PVC.

For information on how to configure CES, see Configuring ATM Services.

The Role of CES

CES is a set of services t hat supp orts t he emulat ion of TDM circ uits over an ATM network. CES provides a constant bit rate (CBR) virtual circuit that performs just like a synchronous point-to-point private line.

1-2

When configuring CES to transfer TDM data, you must configure the ATM PVC to use the ATM adaptation layer 1 (AAL 1) encapsulation.

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+ 40 hidden pages

Avaya TDM User Manual

Configuring TDM Services

Contents

Figures

Tables

Preface

Before You Begin

Text Conventions

Acronyms

Hard-Copy Technical Manuals

How to Get Help

Overview of TDM

TDM Circuits

Switched H.110 TDM Circuits

CES H.110 TDM Circuits

The Role of CES