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Changing the WEIGHT Attribute........................................................................................................................... 207
Enabling Multipath................................................................................................................................................... 207
Filtering BGP Routes............................................................................................................................................... 207
Filtering BGP Routes Using Route Maps..............................................................................................................209
Filtering BGP Routes Using AS-PATH Information............................................................................................. 209
Conguring BGP Route Reectors........................................................................................................................ 210
Aggregating Routes.................................................................................................................................................. 211
Conguring BGP Confederations............................................................................................................................211
Enabling Route Flap Dampening.............................................................................................................................212
Changing BGP Timers..............................................................................................................................................214
Enabling BGP Neighbor Soft-Reconguration......................................................................................................214
Enabling or disabling BGP neighbors..................................................................................................................... 215
Route Map Continue................................................................................................................................................ 217
Enabling MBGP Congurations.................................................................................................................................... 217
Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor.......................................... 218
BGP Regular Expression Optimization.........................................................................................................................218
Debugging BGP.............................................................................................................................................................. 218
Storing Last and Bad PDUs.....................................................................................................................................219
Capturing PDUs....................................................................................................................................................... 220
PDU Counters...........................................................................................................................................................221
Sample Congurations...................................................................................................................................................221
10 Content Addressable Memory (CAM).......................................................................................................228
CAM Allocation...............................................................................................................................................................228
Test CAM Usage............................................................................................................................................................230
View CAM-ACL Settings.............................................................................................................................................. 230
View CAM Usage...........................................................................................................................................................232
Conguring CAM Threshold and Silence Period........................................................................................................232
Setting CAM Threshold and Silence Period......................................................................................................... 233
CAM Optimization......................................................................................................................................................... 234
Troubleshoot CAM Proling..........................................................................................................................................234
CAM Prole Mismatches........................................................................................................................................ 234
QoS CAM Region Limitation...................................................................................................................................234
11 Control Plane Policing (CoPP).................................................................................................................. 235
Congure Control Plane Policing................................................................................................................................. 236
Conguring CoPP for Protocols.............................................................................................................................237
Conguring CoPP for CPU Queues...................................................................................................................... 239
CoPP for OSPFv3 Packets.....................................................................................................................................240
Conguring CoPP for OSPFv3.............................................................................................................................. 243
Displaying CoPP Conguration ............................................................................................................................. 243
12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 246
DHCP Packet Format and Options............................................................................................................................. 246
Assign an IP Address using DHCP...............................................................................................................................248
Implementation Information..........................................................................................................................................249
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