Avaya X.25 Manual do Utilizador

Part No. 117378-A Rev. ASeptember 1997BayRS Version 12.00Site Manager Software Version 6.00 Configuring X.25 Gateway Services

Configuring X.25 Gateway Servicesx 117378-A Rev. A Conventions bold text Indicates text that you need to enter, command names, and buttons in menu pa

About This Guide 117378-A Rev. A xi Acronyms CCITT International Telegraph and Telephone Consultative Committee (now ITU-T)DCE data circuit-terminat

Configuring X.25 Gateway Servicesxii 117378-A Rev. A Ordering Bay Networks Publications To purchase additional copies of this document or other Bay N

About This Guide 117378-A Rev. A xiii How to Get Help If you purchased a service contract for your Bay Networks product from a distributor or author

117378-A Rev. A 1-1 Chapter 1X.25 Gateway Overview X.25 Gateway lets you send and receive messages between X.25 and Transmission Control Protocol/In

Configuring X.25 Gateway Services1-2 117378-A Rev. A X.25 Gateway Topology Figure 1-1 shows a topology consisting of two Bay Networks router systems

X.25 Gateway Overview 117378-A Rev. A 1-3 Network Interfaces Bay Networks routers that support X.25 Gateway services use the following protocols:• X

Configuring X.25 Gateway Services1-4 117378-A Rev. A TCP Interface X.25 Gateway appears to TCP as a client. As such, the software specifies one socke

X.25 Gateway Overview 117378-A Rev. A 1-5 Figure 1-2. How X.25 Gateway Establishes a Session (X.25 Initiated) If the router detects congestion on th

ii 117378-A Rev. A4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821 Copyright © 1997 Bay Networks, Inc. All rights

Configuring X.25 Gateway Services1-6 117378-A Rev. A Establishing Connections from the X.25 Equipment Either the X.25 equipment or the TCP/IP-based s

X.25 Gateway Overview 117378-A Rev. A 1-7 SVCs Without a Called X.121 Address When the X.25 SVC connection does not contain an X.121 called address

Configuring X.25 Gateway Services1-8 117378-A Rev. A Establishing Connections from the X.25 Level 2 (LAPB) Terminal The router uses a similar proced

X.25 Gateway Overview 117378-A Rev. A 1-9 Figure 1-3. Reestablishing X.25 Connections Reestablishing the TCP/IP ConnectionIn the event of a physical

Configuring X.25 Gateway Services1-10 117378-A Rev. AFigure 1-5. How X.25 Gateway Establishes a Session (TCP Initiated)After establishing the X.25 con

X.25 Gateway Overview117378-A Rev. A 1-11 After establishing this X.25-to-TCP session, X.25 Gateway translates X.25 Level 3 data packets received from

Configuring X.25 Gateway Services1-12 117378-A Rev. AThe TCP and X.25 communication stacks share the responsibility for maintaining reliable and effici

X.25 Gateway Overview117378-A Rev. A 1-13 X.25 Gateway Message Block OptionsYou can configure X.25 Gateway with the following message block options.• N

117378-A Rev. A 2-1 Chapter 2Enabling X.25 GatewayThis chapter, as outlined in the following table, describes how to use the Configuration Manager to s

117378-A Rev. A iii Bay Networks, Inc. Software License Agreement NOTICE: Please carefully read this license agreement before copying or using the

Configuring X.25 Gateway Services2-2 117378-A Rev. AEnabling X.25 Gateway ServicesTo enable X.25 Gateway services:1. Add an entry to the IPEX mapping

Enabling X.25 Gateway117378-A Rev. A 2-3 7. Edit the following parameters as appropriate to your network. Use Help or see the parameter descriptions i

Configuring X.25 Gateway Services2-4 117378-A Rev. AFigure 2-1. IPEX Mapping Add Window for Source PVC Parameter: Source Connection Type Default: Non

Enabling X.25 Gateway117378-A Rev. A 2-5 Parameter: Mapping Type Default: End_to_End Options: Local | End_to_End | Gateway Function: Specifies whether

Configuring X.25 Gateway Services2-6 117378-A Rev. A Parameter: TCP Circuit Name Default: None Options: The name of this circuit. When you add a TCP c

Enabling X.25 Gateway117378-A Rev. A 2-7 Configuring Mapping ParametersComplete the following steps to configure IPEX mapping parameters:IPEX Mapping Pa

Configuring X.25 Gateway Services2-8 117378-A Rev. AFigure 2-2. IPEX Mapping Parameters Window for PVCFigure 2-3. IPEX Mapping Parameters Window for S

Enabling X.25 Gateway117378-A Rev. A 2-9 Figure 2-4. IPEX Mapping Parameters Window for TCPParameters for PVC and SVC ConnectionsParameter description

Configuring X.25 Gateway Services2-10 117378-A Rev. A Parameter: X.121 Called Address Default: None Options: Any valid X.121 address Function: Specifie

Enabling X.25 Gateway117378-A Rev. A 2-11 Parameter: Remote TCP Port Number Default: None Options: The TCP port number at the remote connection, a va

iv 117378-A Rev. A its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring X.25 Gateway Services2-12 117378-A Rev. A Parameter: Destination Connection Type Default: None Options: SVC | PVC Function: Specifies eithe

Enabling X.25 Gateway117378-A Rev. A 2-13 Figure 2-5. IPEX Mapping Table Configuration WindowTo replicate a PVC-to-TCP or TCP-to-PVC configuration, comp

Configuring X.25 Gateway Services2-14 117378-A Rev. ASite Manager Procedure You do this System responds1. Choose the configuration you want to replicat

Enabling X.25 Gateway117378-A Rev. A 2-15 Figure 2-6. IPEX Mapping Replication Window

Configuring X.25 Gateway Services2-16 117378-A Rev. AFigure 2-7. IPEX Mapping Table Configuration Window After Replicating a PVC-to-TCP Connection

Enabling X.25 Gateway117378-A Rev. A 2-17 Figure 2-8. IPEX Mapping Table Configuration Window After Replicating a TCP-to-PVC Connection

Configuring X.25 Gateway Services2-18 117378-A Rev. AParameters for Replicating Connections Parameter: Number of Instances Default: None Options: 1 to

Enabling X.25 Gateway117378-A Rev. A 2-19 Parameter: TCP port increment Default: None Options: Any integer. You can assign all of your replicates to

117378-A Rev. A Index-1Aadding an IPEX mapping entry, 2-2address, called X.121, 1-6BBay Networks Press, xiiblock, message, 1-13boundary, message, 1-12

117378-A Rev. A v Contents About This Guide Before You Begin ...

Index-2 117378-A Rev. ATCP, 1-4IP (Internet Protocol)address, 1-4protocol, 1-3IPEXadding a mapping entry, 2-2mapping parameters, configuring, 2-7requir

117378-A Rev. A Index-3X.25 Level 3, 1-3X.25 stack, 1-11publicationsordering, xiiPVCconfiguring for X.25 Gateway, 1-3description of Gateway connection,

Level 2 (LAPB-only) interface, 1-1, 1-3Level 3 (PLP) interface, 1-1, 1-3message-based protocol, 1-12networks, 1-1protocol stack, 1-11PVC, 1-1SVC, 1-1V

vi 117378-A Rev. A How X.25 Handles Large Data Messages ...1-12How TCP Handles Large Data

117378-A Rev. A vii Figures Figure 1-1. Sample Network Topology Using X.25 Gateway ...1-2Figure 1-2. How X.25 Gate

117378-A Rev. A ix About This Guide If you are responsible for configuring X.25 Gateway services, you need to read this guide. Before You Begin Befor