Users Guide

Redistributing Routes...............................................................................................................................................201
Enabling Additional Paths....................................................................................................................................... 202
Conguring IP Community Lists............................................................................................................................ 202
Conguring an IP Extended Community List....................................................................................................... 203
Filtering Routes with Community Lists................................................................................................................. 204
Manipulating the COMMUNITY Attribute............................................................................................................205
Changing MED Attributes.......................................................................................................................................206
Changing the LOCAL_PREFERENCE Attribute..................................................................................................206
Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes.............207
Changing the WEIGHT Attribute...........................................................................................................................208
Enabling Multipath...................................................................................................................................................208
Filtering BGP Routes...............................................................................................................................................208
Filtering BGP Routes Using Route Maps...............................................................................................................210
Filtering BGP Routes Using AS-PATH Information.............................................................................................. 210
Conguring BGP Route Reectors......................................................................................................................... 211
Aggregating Routes..................................................................................................................................................212
Conguring BGP Confederations........................................................................................................................... 212
Enabling Route Flap Dampening.............................................................................................................................213
Changing BGP Timers............................................................................................................................................. 215
Enabling BGP Neighbor Soft-Reconguration..................................................................................................... 215
Enabling or disabling BGP neighbors..................................................................................................................... 216
Route Map Continue................................................................................................................................................218
Enabling MBGP Congurations.................................................................................................................................... 218
Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor.......................................... 219
BGP Regular Expression Optimization.........................................................................................................................219
Debugging BGP.............................................................................................................................................................. 219
Storing Last and Bad PDUs....................................................................................................................................220
Capturing PDUs........................................................................................................................................................221
PDU Counters.......................................................................................................................................................... 222
Sample Congurations.................................................................................................................................................. 222
9 Content Addressable Memory (CAM).........................................................................................................231
CAM Allocation............................................................................................................................................................... 231
Test CAM Usage............................................................................................................................................................ 233
View CAM-ACL Settings.............................................................................................................................................. 233
View CAM Usage...........................................................................................................................................................234
Return to the Default CAM Conguration..................................................................................................................234
CAM Optimization......................................................................................................................................................... 235
Applications for CAM Proling..................................................................................................................................... 235
LAG HashingLAG Hashing Based on Bidirectional Flow..................................................................................... 235
Unied Forwarding Table (UFT) Modes......................................................................................................................235
Conguring UFT Modes..........................................................................................................................................236
10 Control Plane Policing (CoPP)..................................................................................................................237
CoPP Implementation....................................................................................................................................................237
Protocol-based Control Plane Policing..................................................................................................................237
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