Service Manual

Implement BGP with Dell EMC Networking OS................................................................................................. 182
Configuration Information........................................................................................................................................185
Basic BGP configuration tasks..................................................................................................................................... 185
Prerequisite for configuring a BGP network....................................................................................................... 185
Restrictions................................................................................................................................................................. 186
Enabling BGP.............................................................................................................................................................. 186
Enabling four-byte autonomous system numbers............................................................................................. 188
Changing a BGP router ID....................................................................................................................................... 188
Configuring AS4 Number Representations..........................................................................................................189
Configuring a BGP peer........................................................................................................................................... 190
Example-Configuring BGP routing between peers.............................................................................................191
BGP peer group..........................................................................................................................................................192
Advanced BGP configuration tasks.............................................................................................................................198
Route-refresh and Soft-reconfiguration..............................................................................................................198
Aggregating Routes...................................................................................................................................................201
Filtering BGP.............................................................................................................................................................. 203
Configuring BGP Fast Fall-Over............................................................................................................................208
Configuring Passive Peering................................................................................................................................... 210
Enabling Graceful Restart........................................................................................................................................210
Redistributing Routes................................................................................................................................................ 211
Enabling Additional Paths.........................................................................................................................................212
Configuring IP Community Lists.............................................................................................................................213
Configuring an IP Extended Community List...................................................................................................... 214
Configure BGP attributes........................................................................................................................................ 215
Enabling Multipath..................................................................................................................................................... 218
Route Reflectors........................................................................................................................................................219
Enabling Route Flap Dampening............................................................................................................................220
Changing BGP keepalive and hold timers............................................................................................................222
Setting the extended timer.....................................................................................................................................223
Enabling or disabling BGP neighbors.................................................................................................................... 223
Route Map Continue................................................................................................................................................ 225
Configuring BGP Confederations..........................................................................................................................225
Configuring a BGP VRF address family............................................................................................................... 226
Maintaining Existing AS Numbers During an AS Migration............................................................................. 227
Allowing an AS Number to Appear in its Own AS Path................................................................................... 228
Enabling MBGP Configurations............................................................................................................................. 228
MBGP support for IPv6...........................................................................................................................................229
Configuring IPv6 MBGP between peers............................................................................................................. 229
Example-Configuring IPv4 and IPv6 neighbors................................................................................................. 230
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor...................................232
BGP Regular Expression Optimization................................................................................................................. 233
Debugging BGP..........................................................................................................................................................233
Chapter 10: Content Addressable Memory (CAM)......................................................................236
CAM Allocation................................................................................................................................................................ 236
Test CAM Usage............................................................................................................................................................. 238
View CAM-ACL Settings...............................................................................................................................................238
View CAM Usage............................................................................................................................................................ 239
Configuring CAM Threshold and Silence Period..................................................................................................... 240
CAM Optimization........................................................................................................................................................... 241
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