Setup Guide

BGP global and address family conguration........................................................................................................163
Implement BGP with Dell EMC Networking OS...................................................................................................164
Conguration Information........................................................................................................................................167
Basic BGP conguration tasks......................................................................................................................................168
Prerequisite for conguring a BGP network......................................................................................................... 168
Restrictions............................................................................................................................................................... 168
Enabling BGP............................................................................................................................................................ 168
Enabling four-byte autonomous system numbers.................................................................................................171
Changing a BGP router ID........................................................................................................................................171
Conguring AS4 Number Representations........................................................................................................... 172
Conguring a BGP peer...........................................................................................................................................173
Example-Conguring BGP routing between peers...............................................................................................174
BGP peer group........................................................................................................................................................ 175
Advanced BGP conguration tasks.............................................................................................................................. 181
Route-refresh and Soft-reconguration.................................................................................................................181
Aggregating Routes..................................................................................................................................................184
Filtering BGP.............................................................................................................................................................186
Conguring BGP Fast Fall-Over.............................................................................................................................192
Conguring Passive Peering................................................................................................................................... 193
Enabling Graceful Restart........................................................................................................................................194
Redistributing Routes.............................................................................................................................................. 195
Enabling Additional Paths........................................................................................................................................ 196
Conguring IP Community Lists............................................................................................................................. 197
Conguring an IP Extended Community List........................................................................................................198
Congure BGP attributes........................................................................................................................................199
Enabling Multipath...................................................................................................................................................203
Route Reectors......................................................................................................................................................204
Enabling Route Flap Dampening............................................................................................................................205
Changing BGP keepalive and hold timers............................................................................................................. 207
Setting the extended timer.................................................................................................................................... 208
Enabling or disabling BGP neighbors.....................................................................................................................209
Route Map Continue................................................................................................................................................210
Conguring BGP Confederations............................................................................................................................211
Conguring a BGP VRF address family..................................................................................................................211
Maintaining Existing AS Numbers During an AS Migration................................................................................. 213
Allowing an AS Number to Appear in its Own AS Path....................................................................................... 213
Enabling MBGP Congurations.............................................................................................................................. 214
MBGP support for IPv6...........................................................................................................................................215
Conguring IPv6 MBGP between peers............................................................................................................... 215
Example-Conguring IPv4 and IPv6 neighbors....................................................................................................216
Congure IPv6 NH Automatically for IPv6 Prex Advertised over IPv4 Neighbor.......................................... 218
BGP Regular Expression Optimization..................................................................................................................220
Debugging BGP....................................................................................................................................................... 220
9 Content Addressable Memory (CAM)........................................................................................................ 223
CAM Allocation...............................................................................................................................................................223
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