Reference Guide

Table Of Contents
BGP global and address family configuration..................................................................................................... 180
Implement BGP with Dell EMC Networking OS..................................................................................................181
Configuration Information........................................................................................................................................184
Basic BGP configuration tasks..................................................................................................................................... 185
Prerequisite for configuring a BGP network....................................................................................................... 185
Restrictions................................................................................................................................................................. 185
Enabling BGP.............................................................................................................................................................. 185
Enabling four-byte autonomous system numbers..............................................................................................187
Changing a BGP router ID....................................................................................................................................... 188
Configuring AS4 Number Representations..........................................................................................................188
Configuring a BGP peer........................................................................................................................................... 189
Example-Configuring BGP routing between peers............................................................................................190
BGP peer group.......................................................................................................................................................... 191
Advanced BGP configuration tasks.............................................................................................................................198
Route-refresh and Soft-reconfiguration..............................................................................................................198
Aggregating Routes..................................................................................................................................................200
Filtering BGP.............................................................................................................................................................. 202
Configuring BGP Fast Fall-Over............................................................................................................................ 207
Configuring Passive Peering.................................................................................................................................. 209
Enabling Graceful Restart.......................................................................................................................................209
Redistributing Routes............................................................................................................................................... 210
Redistributing iBGP Routes into IGP..................................................................................................................... 211
Enabling Additional Paths.........................................................................................................................................213
Configuring IP Community Lists.............................................................................................................................214
Configuring an IP Extended Community List...................................................................................................... 215
Configure BGP attributes........................................................................................................................................ 216
Enabling Multipath.....................................................................................................................................................219
Route Reflectors....................................................................................................................................................... 220
Enabling Route Flap Dampening.............................................................................................................................221
Changing BGP keepalive and hold timers............................................................................................................223
Setting the extended timer.....................................................................................................................................224
Enabling or disabling BGP neighbors.................................................................................................................... 224
Route Map Continue................................................................................................................................................ 225
Configuring BGP Confederations..........................................................................................................................226
Configuring a BGP VRF address family............................................................................................................... 226
Maintaining Existing AS Numbers During an AS Migration.............................................................................228
Allowing an AS Number to Appear in its Own AS Path................................................................................... 228
Enabling MBGP Configurations............................................................................................................................. 229
MBGP support for IPv6...........................................................................................................................................230
Configuring IPv6 MBGP between peers............................................................................................................. 230
Example-Configuring IPv4 and IPv6 neighbors................................................................................................. 230
Configure IPv6 NH Automatically for IPv6 Prefix Advertised over IPv4 Neighbor...................................233
BGP Regular Expression Optimization................................................................................................................. 234
Debugging BGP......................................................................................................................................................... 234
Chapter 10: Content Addressable Memory (CAM)......................................................................237
CAM Allocation................................................................................................................................................................ 237
Test CAM Usage............................................................................................................................................................. 239
View CAM-ACL Settings...............................................................................................................................................239
View CAM Usage............................................................................................................................................................. 241
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