Administrator Guide

BGP global and address family configuration........................................................................................................... 173
Implement BGP with Dell EMC Networking OS.......................................................................................................174
Configuration Information............................................................................................................................................177
Basic BGP configuration tasks......................................................................................................................................... 177
Prerequisite for configuring a BGP network.............................................................................................................177
Restrictions....................................................................................................................................................................177
Enabling BGP................................................................................................................................................................ 177
Enabling four-byte autonomous system numbers................................................................................................... 179
Changing a BGP router ID...........................................................................................................................................180
Configuring AS4 Number Representations...............................................................................................................180
Configuring a BGP peer............................................................................................................................................... 181
Example-Configuring BGP routing between peers..................................................................................................182
BGP peer group............................................................................................................................................................183
Advanced BGP configuration tasks.................................................................................................................................190
Route-refresh and Soft-reconfiguration...................................................................................................................190
Aggregating Routes..................................................................................................................................................... 192
Filtering BGP.................................................................................................................................................................194
Configuring BGP Fast Fall-Over.................................................................................................................................199
Configuring Passive Peering...................................................................................................................................... 200
Enabling Graceful Restart........................................................................................................................................... 201
Redistributing Routes................................................................................................................................................. 202
Redistributing iBGP Routes into IGP........................................................................................................................ 202
Enabling Additional Paths...........................................................................................................................................205
Configuring IP Community Lists................................................................................................................................205
Configuring an IP Extended Community List...........................................................................................................206
Configure BGP attributes...........................................................................................................................................207
Enabling Multipath....................................................................................................................................................... 210
Route Reflectors...........................................................................................................................................................211
Enabling Route Flap Dampening.................................................................................................................................212
Changing BGP keepalive and hold timers................................................................................................................. 214
Setting the extended timer.........................................................................................................................................215
Enabling or disabling BGP neighbors......................................................................................................................... 215
Route Map Continue....................................................................................................................................................216
Configuring BGP Confederations...............................................................................................................................217
Configuring a BGP VRF address family.....................................................................................................................217
Maintaining Existing AS Numbers During an AS Migration.....................................................................................218
Allowing an AS Number to Appear in its Own AS Path...........................................................................................219
Enabling MBGP Configurations.................................................................................................................................220
MBGP support for IPv6..............................................................................................................................................220
Configuring IPv6 MBGP between peers..................................................................................................................220
Example-Configuring IPv4 and IPv6 neighbors........................................................................................................221
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor............................................ 223
BGP Regular Expression Optimization......................................................................................................................225
Debugging BGP........................................................................................................................................................... 225
10 Content Addressable Memory (CAM)........................................................................................227
CAM Allocation.................................................................................................................................................................. 227
Test CAM Usage............................................................................................................................................................... 228
View CAM-ACL Settings..................................................................................................................................................229
View CAM Usage.............................................................................................................................................................. 230
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