Administrator Guide

Changing MED Attributes.......................................................................................................................................205
Changing the LOCAL_PREFERENCE Attribute..................................................................................................205
Conguring the local System or a Dierent System to be the Next Hop for BGP-Learned Routes............ 206
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
CAM Optimization......................................................................................................................................................... 232
Troubleshoot CAM Proling..........................................................................................................................................232
QoS CAM Region Limitation...................................................................................................................................232
11 Control Plane Policing (CoPP).................................................................................................................. 233
Congure Control Plane Policing................................................................................................................................. 234
Conguring CoPP for Protocols............................................................................................................................ 235
Conguring CoPP for CPU Queues.......................................................................................................................237
CoPP for OSPFv3 Packets.....................................................................................................................................238
Conguring CoPP for OSPFv3............................................................................................................................... 241
Displaying CoPP Conguration ..............................................................................................................................241
12 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 244
DHCP Packet Format and Options..............................................................................................................................244
Assign an IP Address using DHCP...............................................................................................................................246
Implementation Information..........................................................................................................................................247
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