Users Guide

BGP global and address family configuration...................................................................................................... 181
Implement BGP with Dell EMC Networking OS................................................................................................. 182
Configuration Information........................................................................................................................................185
Basic BGP configuration tasks..................................................................................................................................... 186
Prerequisite for configuring a BGP network....................................................................................................... 186
Restrictions................................................................................................................................................................. 186
Enabling BGP.............................................................................................................................................................. 186
Enabling four-byte autonomous system numbers............................................................................................. 188
Changing a BGP router ID....................................................................................................................................... 189
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.............................................................................................................................199
Route-refresh and Soft-reconfiguration..............................................................................................................199
Aggregating Routes...................................................................................................................................................201
Filtering BGP.............................................................................................................................................................. 203
Configuring BGP Fast Fall-Over............................................................................................................................208
Configuring Passive Peering................................................................................................................................... 210
Enabling Graceful Restart.........................................................................................................................................211
Redistributing Routes............................................................................................................................................... 212
Redistributing iBGP Routes into IGP.....................................................................................................................212
Enabling Additional Paths........................................................................................................................................ 215
Configuring IP Community Lists.............................................................................................................................215
Configuring an IP Extended Community List...................................................................................................... 216
Configure BGP attributes.........................................................................................................................................217
Enabling Multipath..................................................................................................................................................... 221
Route Reflectors........................................................................................................................................................ 221
Enabling Route Flap Dampening............................................................................................................................ 223
Changing BGP keepalive and hold timers........................................................................................................... 225
Setting the extended timer.....................................................................................................................................225
Enabling or disabling BGP neighbors....................................................................................................................226
Route Map Continue.................................................................................................................................................227
Configuring BGP Confederations..........................................................................................................................228
Configuring a BGP VRF address family............................................................................................................... 228
Maintaining Existing AS Numbers During an AS Migration.............................................................................229
Allowing an AS Number to Appear in its Own AS Path................................................................................... 230
Enabling MBGP Configurations.............................................................................................................................. 231
MBGP support for IPv6............................................................................................................................................231
Configuring IPv6 MBGP between peers.............................................................................................................. 231
Example-Configuring IPv4 and IPv6 neighbors..................................................................................................232
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor...................................234
BGP Regular Expression Optimization.................................................................................................................236
Debugging BGP......................................................................................................................................................... 236
Chapter 10: Content Addressable Memory (CAM)......................................................................238
CAM Allocation................................................................................................................................................................ 238
Test CAM Usage............................................................................................................................................................. 240
View CAM-ACL Settings...............................................................................................................................................240
View CAM Usage............................................................................................................................................................ 242
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