IBM SC30-3865-04 - Manual (Page 5)

Contents
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Notice to Users of Online Versions of This Book . . . . . . . . . . . xvii
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . xix
xxi
About the Software . . . . . . . . . . . . . . . . . . . . . . . xxi
Conventions Used in This Manual
. . . . . . . . . . . . . . . . . xxii
IBM 2210 Nways Multiprotocol Router Publications . . . . . . . . . . . xxii
Summary of Changes for the IBM 2210 Software Library . . . . . . . . . xxiv
Editorial Changes . . . . . . . . . . . . . . . . . . . . . . xxvi
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . xxvi
Exiting a Lower Level Environment . . . . . . . . . . . . . . . . . xxvii
Chapter 1. APPN . . . . . . . . . . . . . . . . . . . . . . . 1
What is APPN? . . . . . . . . . . . . . . . . . . . . . . . . 1
Peer-to-Peer Communications . . . . . . . . . . . . . . . . . . 1
APPN Node Types . . . . . . . . . . . . . . . . . . . . . . 1
What APPN Functions Are Implemented on the Router? . . . . . . . . 3
APPN Network Node Optional Features . . . . . . . . . . . . . . . 6
High-Performance Routing . . . . . . . . . . . . . . . . . . . 6
Dependent LU Requester (DLUR) . . . . . . . . . . . . . . . . 9
APPN Connection Network . . . . . . . . . . . . . . . . . . . 12
Branch Extender . . . . . . . . . . . . . . . . . . . . . . . 13
Extended Border Nodes . . . . . . . . . . . . . . . . . . . . 14
Branch Extender vs. Extended Border Node . . . . . . . . . . . . . 16
Managing a Network Node . . . . . . . . . . . . . . . . . . . 17
Entry Point Capabilities for APPN-related Alerts . . . . . . . . . . . 17
SNMP Capabilities for APPN MIBs . . . . . . . . . . . . . . . . 19
Topology Database Garbage Collection . . . . . . . . . . . . . . 19
Configurable Held Alert Queue . . . . . . . . . . . . . . . . . . 19
Implicit Focal Point . . . . . . . . . . . . . . . . . . . . . . 19
Dynamic Definition of Dependent LUs (DDDLU) . . . . . . . . . . . 20
TN3270E Server . . . . . . . . . . . . . . . . . . . . . . . 20
Support for Subarea SNA Connections from the TN3270E Server to the Host 23
Enterprise Extender Support for HPR over IP . . . . . . . . . . . . 25
Supported DLCs . . . . . . . . . . . . . . . . . . . . . . . . 25
Router Configuration Process . . . . . . . . . . . . . . . . . . . 25
Configuration Changes That Require the APPN Function to Restart . . . . 26
Configuration Requirements for APPN . . . . . . . . . . . . . . . 26
Configuring the Router as an APPN Network Node . . . . . . . . . . 26
Configuring Branch Extender . . . . . . . . . . . . . . . . . . 30
Configuring Extended Border Nodes. . . . . . . . . . . . . . . . 31
High-Performance Routing . . . . . . . . . . . . . . . . . . . 36
DLUR . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Configuring Focal Points . . . . . . . . . . . . . . . . . . . . 36
Configuring Held Alert Queue Size . . . . . . . . . . . . . . . . 36
Defining Transmission Group (TG) Characteristics . . . . . . . . . . 36
Calculating APPN Routes Using TG Characteristics . . . . . . . . . . 37
© Copyright IBM Corp. 1994, 1998 iii