Configuring X.25 Services

Configuring X.25 Services
Copyright © 1988-1997 Bay Networks, Inc.
Restricted Rights Legend
Notice for All Other Executive Agencies
Trademarks of Bay Networks, Inc.
Third-Party Trademarks
Statement of Conditions
Contents -
About This Guide
Before You Begin
Conventions
Acronyms
Ordering Bay Networks Publications
Technical Support and Online Services
Bay Networks Customer Service
Bay Networks Information Services
World Wide Web
Customer Service FTP
Support Source CD
CompuServe
InfoFACTS
How to Get Help
Chapter1 - X.25 Overview
X.25 Interface
X.25 and the OSI Model
Physical Layer
Data Link Layer
Link Access Procedure Balanced Protocol
LAPB Implementation on Bay Networks Routers
Network Layer
X.25 Service Types
How X.25 Services Work
Determining the X.121 Destination
Establishing a Virtual Circuit
Transmitting Data
IPEX
How IPEX Works
Levels of Tunneling
IPEX Network Interfaces
X.25 PLP Interface
TCP Interface
IPEX Facility Support
Sequence of Connections with IPEX
IPEX Mapping
Mapping Types
IPEX Connection Summary
IPEX Handling of Large Data Messages (M-bit)
How X.25 Handles Large Data Messages
How TCP Handles Large Data Messages
Q-bit Support
QLLC
QLLC and DLSw
NPSI
How QLLC Works
Sequence of Connections with QLLC
QLLC Mapping
Adjacent and Partner Devices
Coordinating X.25 and DLSw Parameters
Chapter2 - Implementation Notes
X.25 Data Compression
Load Sharing
Clocking Sources for Routers Set Back-to-Back
Packet-level Parameters: Max Window Size and Max Packet Length
Flow-Control Negotiation
Configuring LAPB for an AN or ASN
Configuring Synchronous Lines with X.25
DDN Default Service Record
RFC 1356 Multiplexing
PTOP Encapsulation
Chapter3 - Enabling X.25 Service
Enabling X.25 on an Interface
Selecting a Connector
Configuring X.25 Packet-level Parameters
X.25 Packet-level Parameter Descriptions
Adding X.25 Network Service Records
X.25 Network Service Record Parameter Descriptions
Adding X.25 Network Service Records to a Previously Configured Interface
Enabling Bridging and Routing Services on an X.25 Circuit
Configuring IP Interfaces over X.25 Circuits
Chapter4 - Editing X.25 Parameters
Editing the X.25 Global Parameter
X.25 Global Parameter Description
Editing X.25 Packet-level Parameters
X.25 Packet-level Parameter Descriptions
Editing X.25 Network Service Records
X.25 Network Service Record Parameter Descriptions
Deleting X.25 Network Service Records
Deleting X.25 from the Router
Chapter5 - Editing IPEX Parameters
Accessing IPEX Global Parameters
IPEX Global Parameter Descriptions
Configuring IPEX Mapping Entries
Adding an IPEX Mapping Table Entry
IPEX Mapping Parameter Descriptions
Parameters for SVC Connections
Parameters for TCP Connections
Additional Mapping Parameters
Editing IPEX Mapping Table Entries
Editing LAPB Parameters
Deleting IPEX Mapping Table Entries
Deleting IPEX from the Router
Chapter6 - Editing QLLC Parameters
Configuring QLLC
Adding a QLLC Mapping Table Entry
QLLC Mapping Parameter Descriptions
QLLC Mapping Parameters
Additional Mapping Parameters
Editing or Deleting QLLC Mapping Table Entries
AppendixA - Sample IPEX Configuration
IPEX Mapping Example
AppendixB - QLLC Configuration Examples
Sample Network Topologies
Upstream QLLC Network
Downstream QLLC Network
Setting the Generate XID Parameter
Endpoint QLLC Network
Setting the Options Parameter
Backbone QLLC Network
AppendixC - X.25 Default Parameter Settings
AppendixD - IPEX Cause and Diagnostic Codes
IPEX Originated Cause Code in Disconnect Request Packet
IPEX Originated Diagnostic Codes in Clear Request Packet
IPEX Originated Diagnostic Codes Due to TCP Error
X.25 Originated Cause and Diagnostic Codes Associated with Clear Request Packets
X.25 Originated Cause and Diagnostic Codes Associated with Restart Packet
X.25 Originated Cause and Diagnostic Codes Associated with Diagnostic Packets
X.25 Originated Cause and Diagnostic Codes Associated with Reset Packets
Index
Configuring X.25 Services - 27 FEB 1997

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