Users Guide

Filtering Routes with Community Lists.................................................................................................................202
Manipulating the COMMUNITY Attribute............................................................................................................203
Changing MED Attributes...................................................................................................................................... 204
Changing the LOCAL_PREFERENCE Attribute................................................................................................. 204
Configuring the local System or a Different System to be the Next Hop for BGP-Learned Routes...........205
Changing the WEIGHT Attribute...........................................................................................................................206
Enabling Multipath...................................................................................................................................................206
Filtering BGP Routes...............................................................................................................................................206
Filtering BGP Routes Using Route Maps............................................................................................................. 208
Filtering BGP Routes Using AS-PATH Information.............................................................................................208
Configuring BGP Route Reflectors.......................................................................................................................209
Aggregating Routes................................................................................................................................................. 210
Configuring BGP Confederations...........................................................................................................................210
Enabling Route Flap Dampening..............................................................................................................................211
Changing BGP Timers..............................................................................................................................................213
Enabling BGP Neighbor Soft-Reconfiguration..................................................................................................... 213
Enabling or disabling BGP neighbors......................................................................................................................214
Route Map Continue................................................................................................................................................216
Enabling MBGP Configurations....................................................................................................................................216
BGP Regular Expression Optimization.........................................................................................................................217
Debugging BGP.............................................................................................................................................................. 217
Storing Last and Bad PDUs.................................................................................................................................... 218
Capturing PDUs........................................................................................................................................................219
PDU Counters..........................................................................................................................................................220
Sample Configurations..................................................................................................................................................220
10 Content Addressable Memory (CAM)...................................................................................................... 227
CAM Allocation...............................................................................................................................................................227
Test CAM Usage........................................................................................................................................................... 229
View CAM-ACL Settings..............................................................................................................................................229
View CAM Usage........................................................................................................................................................... 231
CAM Optimization..........................................................................................................................................................231
Troubleshoot CAM Profiling..........................................................................................................................................231
QoS CAM Region Limitation.................................................................................................................................. 232
11 Control Plane Policing (CoPP)..................................................................................................................233
Configure Control Plane Policing.................................................................................................................................234
Configuring CoPP for Protocols............................................................................................................................235
Configuring CoPP for CPU Queues...................................................................................................................... 237
CoPP for OSPFv3 Packets.................................................................................................................................... 238
Configuring CoPP for OSPFv3...............................................................................................................................241
Displaying CoPP Configuration ..............................................................................................................................241
12 Data Center Bridging (DCB).....................................................................................................................244
Ethernet Enhancements in Data Center Bridging..................................................................................................... 244
Priority-Based Flow Control...................................................................................................................................245
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