Users Guide

Advanced BGP configuration tasks............................................................................................................................. 191
Route-refresh and Soft-reconfiguration...............................................................................................................191
Aggregating Routes...................................................................................................................................................194
Filtering BGP...............................................................................................................................................................196
Configuring BGP Fast Fall-Over.............................................................................................................................201
Configuring Passive Peering...................................................................................................................................203
Enabling Graceful Restart....................................................................................................................................... 203
Redistributing Routes...............................................................................................................................................204
Enabling Additional Paths........................................................................................................................................205
Configuring IP Community Lists............................................................................................................................206
Configuring an IP Extended Community List......................................................................................................207
Configure BGP attributes....................................................................................................................................... 208
Enabling Multipath......................................................................................................................................................211
Route Reflectors........................................................................................................................................................ 212
Enabling Route Flap Dampening.............................................................................................................................213
Changing BGP keepalive and hold timers............................................................................................................ 215
Setting the extended timer..................................................................................................................................... 216
Enabling or disabling BGP neighbors.....................................................................................................................216
Route Map Continue................................................................................................................................................. 218
Configuring BGP Confederations...........................................................................................................................218
Configuring a BGP VRF address family................................................................................................................ 219
Maintaining Existing AS Numbers During an AS Migration.............................................................................220
Allowing an AS Number to Appear in its Own AS Path.................................................................................... 221
Enabling MBGP Configurations.............................................................................................................................. 221
MBGP support for IPv6...........................................................................................................................................222
Configuring IPv6 MBGP between peers..............................................................................................................222
Example-Configuring IPv4 and IPv6 neighbors..................................................................................................223
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor.................................. 225
BGP Regular Expression Optimization.................................................................................................................226
Debugging BGP......................................................................................................................................................... 226
Chapter 10: Content Addressable Memory (CAM)......................................................................229
CAM Allocation................................................................................................................................................................ 229
Test CAM Usage..............................................................................................................................................................231
View CAM-ACL Settings................................................................................................................................................231
View CAM Usage............................................................................................................................................................ 232
CAM Optimization...........................................................................................................................................................233
Troubleshoot CAM Profiling......................................................................................................................................... 233
QoS CAM Region Limitation...................................................................................................................................233
Syslog Error When the Table is Full......................................................................................................................234
Syslog Warning Upon 90 Percent Utilization of CAM......................................................................................234
Syslog Warning for Discrepancies Between Configured Extended Prefixes.............................................. 234
Unified Forwarding Table (UFT) Modes....................................................................................................................234
Configuring UFT Modes...........................................................................................................................................234
Chapter 11: Control Plane Policing (CoPP)................................................................................ 236
Configure Control Plane Policing.................................................................................................................................237
Configuring CoPP for Protocols............................................................................................................................238
Configuring CoPP for CPU Queues......................................................................................................................239
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