Deployment Guide

Table Of Contents
Configuring AS4 Number Representations..........................................................................................................178
Configuring a BGP peer............................................................................................................................................179
Example-Configuring BGP routing between peers............................................................................................180
BGP peer group.......................................................................................................................................................... 181
Advanced BGP configuration tasks.............................................................................................................................188
Route-refresh and Soft-reconfiguration.............................................................................................................. 188
Aggregating Routes.................................................................................................................................................. 190
Filtering BGP...............................................................................................................................................................192
Configuring BGP Fast Fall-Over.............................................................................................................................197
Configuring Passive Peering................................................................................................................................... 199
Enabling Graceful Restart........................................................................................................................................199
Redistributing Routes.............................................................................................................................................. 200
Redistributing iBGP Routes into IGP.................................................................................................................... 201
Enabling Additional Paths........................................................................................................................................203
Configuring IP Community Lists............................................................................................................................204
Configuring an IP Extended Community List..................................................................................................... 205
Configure BGP attributes....................................................................................................................................... 206
Enabling Multipath.................................................................................................................................................... 209
Route Reflectors........................................................................................................................................................210
Enabling Route Flap Dampening..............................................................................................................................211
Changing BGP keepalive and hold timers............................................................................................................ 213
Setting the extended timer..................................................................................................................................... 214
Enabling or disabling BGP neighbors.....................................................................................................................214
Route Map Continue................................................................................................................................................. 215
Configuring BGP Confederations...........................................................................................................................216
Configuring a BGP VRF address family................................................................................................................ 216
Maintaining Existing AS Numbers During an AS Migration..............................................................................218
Allowing an AS Number to Appear in its Own AS Path.................................................................................... 218
Enabling MBGP Configurations.............................................................................................................................. 219
MBGP support for IPv6...........................................................................................................................................220
Configuring IPv6 MBGP between peers............................................................................................................. 220
Example-Configuring IPv4 and IPv6 neighbors................................................................................................. 220
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor...................................223
BGP Regular Expression Optimization................................................................................................................. 224
Debugging BGP......................................................................................................................................................... 224
Chapter 10: Content Addressable Memory (CAM)......................................................................227
CAM Allocation................................................................................................................................................................ 227
Test CAM Usage............................................................................................................................................................. 229
View CAM-ACL Settings...............................................................................................................................................229
View CAM Usage............................................................................................................................................................. 231
Configuring CAM Threshold and Silence Period...................................................................................................... 231
CAM Optimization...........................................................................................................................................................232
Troubleshoot CAM Profiling......................................................................................................................................... 233
QoS CAM Region Limitation...................................................................................................................................233
Chapter 11: Control Plane Policing (CoPP)................................................................................ 234
Configure Control Plane Policing................................................................................................................................ 235
Configuring CoPP for Protocols............................................................................................................................236
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