Connectivity Guide

BFD commands........................................................................................................................................................ 315
Border Gateway Protocol.............................................................................................................................................. 321
Sessions and peers.................................................................................................................................................. 322
Route reectors....................................................................................................................................................... 323
Multiprotocol BGP................................................................................................................................................... 324
Attributes.................................................................................................................................................................. 324
Selection criteria...................................................................................................................................................... 324
Weight and local preference...................................................................................................................................325
Multiexit discriminators........................................................................................................................................... 326
Origin.........................................................................................................................................................................326
AS path and next-hop............................................................................................................................................. 327
Best path selection.................................................................................................................................................. 327
More path support...................................................................................................................................................328
Advertise cost.......................................................................................................................................................... 328
4-Byte AS numbers................................................................................................................................................. 329
AS number migration...............................................................................................................................................329
Congure Border Gateway Protocol..................................................................................................................... 330
Enable BGP.............................................................................................................................................................. 330
Congure Dual Stack...............................................................................................................................................333
Congure administrative distance......................................................................................................................... 333
Peer templates......................................................................................................................................................... 334
Neighbor fall-over.................................................................................................................................................... 337
Congure password.................................................................................................................................................339
Fast external fallover...............................................................................................................................................340
Passive peering........................................................................................................................................................ 342
Local AS.................................................................................................................................................................... 342
AS number limit........................................................................................................................................................343
Redistribute routes.................................................................................................................................................. 344
Additional paths........................................................................................................................................................344
MED attributes.........................................................................................................................................................345
Local preference attribute...................................................................................................................................... 345
Weight attribute.......................................................................................................................................................346
Enable multipath.......................................................................................................................................................347
Route-map lters..................................................................................................................................................... 347
Route reector clusters...........................................................................................................................................347
Aggregate routes..................................................................................................................................................... 348
Confederations.........................................................................................................................................................349
Route dampening.....................................................................................................................................................350
Timers........................................................................................................................................................................ 351
Neighbor soft-reconguration................................................................................................................................ 351
BGP commands....................................................................................................................................................... 352
Equal cost multi-path....................................................................................................................................................385
Load balancing......................................................................................................................................................... 385
ECMP commands....................................................................................................................................................386
IPv4 routing.................................................................................................................................................................... 388
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