Setup Guide

Table Of Contents
Configuring AS4 Number Representations..........................................................................................................175
Configuring a BGP peer............................................................................................................................................176
Example-Configuring BGP routing between peers............................................................................................ 177
BGP peer group..........................................................................................................................................................178
Advanced BGP configuration tasks.............................................................................................................................186
Route-refresh and Soft-reconfiguration..............................................................................................................186
Aggregating Routes...................................................................................................................................................188
Filtering BGP...............................................................................................................................................................190
Configuring BGP Fast Fall-Over.............................................................................................................................196
Configuring Passive Peering....................................................................................................................................197
Enabling Graceful Restart........................................................................................................................................198
Redistributing Routes............................................................................................................................................... 198
Redistributing iBGP Routes into IGP.................................................................................................................... 199
Enabling Additional Paths........................................................................................................................................ 201
Configuring IP Community Lists.............................................................................................................................201
Configuring an IP Extended Community List..................................................................................................... 202
Configure BGP attributes....................................................................................................................................... 203
Enabling Multipath.................................................................................................................................................... 207
Route Reflectors....................................................................................................................................................... 207
Enabling Route Flap Dampening............................................................................................................................208
Changing BGP Timers...............................................................................................................................................210
Setting the extended timer...................................................................................................................................... 211
Enabling or disabling BGP neighbors..................................................................................................................... 211
Route Map Continue................................................................................................................................................. 212
Configuring BGP Confederations...........................................................................................................................213
Configuring a BGP VRF address family................................................................................................................ 213
Maintaining Existing AS Numbers During an AS Migration..............................................................................215
Allowing an AS Number to Appear in its Own AS Path.................................................................................... 215
Enabling MBGP Configurations.............................................................................................................................. 216
MBGP support for IPv6............................................................................................................................................216
Configuring IPv6 MBGP between peers.............................................................................................................. 217
Example-Configuring IPv4 and IPv6 neighbors.................................................................................................. 217
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor................................... 219
BGP Regular Expression Optimization..................................................................................................................221
Debugging BGP.......................................................................................................................................................... 221
Chapter 10: Content Addressable Memory (CAM)......................................................................224
CAM Allocation................................................................................................................................................................ 224
Test CAM Usage............................................................................................................................................................. 226
View CAM-ACL Settings...............................................................................................................................................226
View CAM Usage............................................................................................................................................................ 228
Configuring CAM Threshold and Silence Period..................................................................................................... 228
CAM Optimization...........................................................................................................................................................229
Troubleshoot CAM Profiling.........................................................................................................................................230
QoS CAM Region Limitation...................................................................................................................................230
Chapter 11: Control Plane Policing (CoPP)................................................................................. 231
Configure Control Plane Policing................................................................................................................................ 232
Configuring CoPP for Protocols............................................................................................................................233
Contents
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