Avaya X.25 User Manual

BayRS Version 14.00Part No. 308649-14.00 Rev 00September 19994401 Great America ParkwaySanta Clara, CA 95054Configuring X.25 Gateway Services

Configuring X.25 Gateway Servicesx308649-14.00 Rev 00Text ConventionsThis guide uses the following text conventions:bold textIndicates text that you n

Preface308649-14.00 Rev 00xi AcronymsCCITT International Telegraph and Telephone Consultative Committee (now ITU-T)DCE data circuit-terminating equipm

Configuring X.25 Gateway Servicesxii308649-14.00 Rev 00Hard-Copy Technical ManualsYou can print selected technical manuals and release notes free, dir

308649-14.00 Rev 001-1 Chapter 1X.25 Gateway OverviewX.25 Gateway lets you send and receive messages between X.25 and Transmission Control Protocol/In

Configuring X.25 Gateway Services1-2308649-14.00 Rev 00X.25 Gateway TopologyFigure 1-1 shows a topology consisting of two Nortel Networks router syste

X.25 Gateway Overview308649-14.00 Rev 001-3 Network InterfacesNortel Networks routers that support X.25 Gateway services use the following protocols:•

Configuring X.25 Gateway Services1-4308649-14.00 Rev 00TCP InterfaceX.25 Gateway appears to TCP as a client. As such, the software specifies one socke

X.25 Gateway Overview308649-14.00 Rev 001-5 Figure 1-2. How X.25 Gateway Establishes a Session (X.25 Initiated)If the router detects congestion on the

Configuring X.25 Gateway Services1-6308649-14.00 Rev 00Establishing Connections from the X.25 EquipmentEither the X.25 equipment or the TCP/IP-based s

X.25 Gateway Overview308649-14.00 Rev 001-7 SVCs Without a Called X.121 AddressWhen the X.25 SVC connection does not contain an X.121 called address i

ii308649-14.00 Rev 00 Copyright © 1999 Nortel NetworksAll rights reserved. Printed in the USA. September 1999.The information in this document is subj

Configuring X.25 Gateway Services1-8308649-14.00 Rev 00Establishing Connections from the X.25 Level 2 (LAPB) Terminal The router uses a similar proced

X.25 Gateway Overview308649-14.00 Rev 001-9 Figure 1-3. Reestablishing X.25 ConnectionsReestablishing the TCP/IP ConnectionIn the event of a physical

Configuring X.25 Gateway Services1-10308649-14.00 Rev 00Figure 1-5. How X.25 Gateway Establishes a Session (TCP Initiated)After establishing the X.25

X.25 Gateway Overview308649-14.00 Rev 001-11 After establishing this X.25-to-TCP session, X.25 Gateway translates X.25 Level 3 data packets received f

Configuring X.25 Gateway Services1-12308649-14.00 Rev 00The TCP and X.25 communication stacks share the responsibility for maintaining reliable and ef

X.25 Gateway Overview308649-14.00 Rev 001-13 X.25 Gateway Message Block OptionsYou can configure X.25 Gateway with the following message block options

308649-14.00 Rev 002-1 Chapter 2Enabling X.25 GatewayThis chapter, as outlined in the following table, describes how to use the Configuration Manager

Configuring X.25 Gateway Services2-2308649-14.00 Rev 00Enabling X.25 Gateway ServicesTo enable X.25 Gateway services:1.Add an entry to the IPEX mappin

Enabling X.25 Gateway308649-14.00 Rev 002-3 7. Edit the following parameters as appropriate to your network. Use Help or see the parameter description

308649-14.00 Rev 00iiiNortel Networks NA Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using t

Configuring X.25 Gateway Services2-4308649-14.00 Rev 00Figure 2-1. IPEX Mapping Add Window for Source PVC Parameter: Source Connection Type Default:

Enabling X.25 Gateway308649-14.00 Rev 002-5 Parameter: Mapping Type Default: End_to_End Options: Local | End_to_End | Gateway Function: Specifies whe

Configuring X.25 Gateway Services2-6308649-14.00 Rev 00 Parameter: TCP Circuit Name Default: None Options: The name of this circuit. When you add a TC

Enabling X.25 Gateway308649-14.00 Rev 002-7 Configuring Mapping ParametersComplete the following steps to configure IPEX mapping parameters:IPEX Mappi

Configuring X.25 Gateway Services2-8308649-14.00 Rev 00Figure 2-2. IPEX Mapping Parameters Window for PVCFigure 2-3. IPEX Mapping Parameters Window fo

Enabling X.25 Gateway308649-14.00 Rev 002-9 Figure 2-4. IPEX Mapping Parameters Window for TCPParameters for PVC and SVC ConnectionsParameter descript

Configuring X.25 Gateway Services2-10308649-14.00 Rev 00 Parameter: X.121 Called Address Default: None Options: Any valid X.121 address Function: Spec

Enabling X.25 Gateway308649-14.00 Rev 002-11 Parameter: Remote TCP Port Number Default: None Options: The TCP port number at the remote connection, a

Configuring X.25 Gateway Services2-12308649-14.00 Rev 00 Parameter: Destination Connection Type Default: None Options: SVC | PVC Function: Specifies e

Enabling X.25 Gateway308649-14.00 Rev 002-13 Use the Copy button in the IPEX Mapping Table Configuration window (Figure 2-5) to replicate a configurat

iv308649-14.00 Rev 00for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct

Configuring X.25 Gateway Services2-14308649-14.00 Rev 00Site Manager ProcedureYou do this System responds1. Choose the configuration you want to repli

Enabling X.25 Gateway308649-14.00 Rev 002-15 Figure 2-6. IPEX Mapping Replication Window

Configuring X.25 Gateway Services2-16308649-14.00 Rev 00Figure 2-7. IPEX Mapping Table Configuration Window After Replicating a PVC-to-TCP Connection

Enabling X.25 Gateway308649-14.00 Rev 002-17 Figure 2-8. IPEX Mapping Table Configuration Window After Replicating a TCP-to-PVC Connection

Configuring X.25 Gateway Services2-18308649-14.00 Rev 00Parameters for Replicating Connections Parameter: Number of Instances Default: None Options: 1

Enabling X.25 Gateway308649-14.00 Rev 002-19 Parameter: First TCP port number Default: None Options: For a PVC-to-TCP connection, this value can be a

308649-14.00 Rev 00Index-1Aacronyms, xiadding an IPEX mapping entry, 2-2address, called X.121, 1-6Bblock, message, 1-13boundary, message, 1-12Ccalled

Index-2308649-14.00 Rev 00IP (Internet Protocol)address, 1-4IPEXadding a mapping entry, 2-2mapping parameters, configuring, 2-7requirement to configur

308649-14.00 Rev 00Index-3RRemote IP Address parameter, 2-10Remote TCP Port Number parameter, 2-11replicating a configuration, 2-12Ssocket, 1-6, 1-7,

308649-14.00 Rev 00vContents PrefaceBefore You Begin ...

vi308649-14.00 Rev 00Handling Large Data Messages ...1-12How X.25 Ha

308649-14.00 Rev 00viiFiguresFigure 1-1. Sample Network Topology Using X.25 Gateway ...1-2Figure 1-2. How X.25 Gate

308649-14.00 Rev 00ix PrefaceThis guide describes X.25 Gateway services and what you do to start and customize X.25 Gateway services on a Nortel Netwo