Reference Guide
Multiexit discriminators........................................................................................................................................... 298
Origin.........................................................................................................................................................................298
AS path and next-hop.............................................................................................................................................299
Best path selection..................................................................................................................................................299
More path support.................................................................................................................................................. 300
Advertise cost..........................................................................................................................................................300
4-Byte AS numbers..................................................................................................................................................301
AS number migration............................................................................................................................................... 301
Congure Border Gateway Protocol..................................................................................................................... 302
Enable BGP.............................................................................................................................................................. 302
Congure Dual Stack.............................................................................................................................................. 305
Peer templates.........................................................................................................................................................305
Neighbor fall-over....................................................................................................................................................308
Congure password................................................................................................................................................. 310
Fast external fallover.................................................................................................................................................311
Passive peering......................................................................................................................................................... 313
Local AS..................................................................................................................................................................... 313
AS number limit.........................................................................................................................................................314
Redistribute routes...................................................................................................................................................315
Additional paths........................................................................................................................................................ 315
MED attributes......................................................................................................................................................... 316
Local preference attribute....................................................................................................................................... 316
Weight attribute........................................................................................................................................................ 317
Enable multipath....................................................................................................................................................... 318
Route-map lters......................................................................................................................................................318
Route reector clusters........................................................................................................................................... 318
Aggregate routes...................................................................................................................................................... 319
Confederations.........................................................................................................................................................320
Route dampening......................................................................................................................................................321
Timers........................................................................................................................................................................322
Neighbor soft-reconguration................................................................................................................................322
BGP commands....................................................................................................................................................... 323
Equal cost multi-path....................................................................................................................................................355
Load balancing......................................................................................................................................................... 355
ECMP commands....................................................................................................................................................356
IPv4 routing.................................................................................................................................................................... 358
Assign interface IP address.................................................................................................................................... 358
Congure static routing.......................................................................................................................................... 359
Address Resolution Protocol.................................................................................................................................. 360
IPv4 routing commands..........................................................................................................................................360
IPv6 routing....................................................................................................................................................................365
Enable or disable IPv6.............................................................................................................................................365
IPv6 addresses.........................................................................................................................................................366
Stateless autoconguration.................................................................................................................................... 367
Neighbor Discovery.................................................................................................................................................368
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