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Alteon OS Application Guide
742C4911, January 2007
Chapter 11: Border Gateway Protocol 171
Internal Routing Versus External Routing 172
Forming BGP Peer Routers 173
What is a Route Map? 174
Incoming and Outgoing Route Maps 175
Precedence 176
Configuration Overview 176
Aggregating Routes 178
Redistributing Routes 179
BGP Attributes 180
Local Preference Attribute 180
Metric (Multi-Exit Discriminator) Attribute 180
Selecting Route Paths in BGP 181
BGP Failover Configuration 182
Default Redistribution and Route Aggregation Example 185
Chapter 12: OSPF 187
OSPF Overview 188
Types of OSPF Areas 188
Types of OSPF Routing Devices 190
Neighbors and Adjacencies 191
The Link-State Database 191
The Shortest Path First Tree 192
Internal Versus External Routing 192
OSPF Implementation in Alteon OS 193
Configurable Parameters 193
Defining Areas 194
Interface Cost 196
Electing the Designated Router and Backup 196
Summarizing Routes 196
Default Routes 197
Virtual Links 198
Router ID 199
Authentication 199
Host Routes for Load Balancing 202
OSPF Features Not Supported in This Release 203