Dell C9000 Series Networking Configuration Manual page 8

Ignore Router-ID for Some Best-Path Calculations.................................................203
Four-Byte AS Numbers................................................................................................... 203
AS4 Number Representation......................................................................................... 204
AS Number Migration......................................................................................................206
BGP4 Management Information Base (MIB).............................................................. 208
Important Points to Remember.................................................................................... 208
Configuration Information...................................................................................................209
BGP Configuration.................................................................................................................209
Enabling BGP.....................................................................................................................210
Configuring AS4 Number Representations.................................................................214
Configuring Peer Groups................................................................................................ 216
Configuring BGP Fast Fail-Over.................................................................................... 218
Configuring Passive Peering.......................................................................................... 220
Maintaining Existing AS Numbers During an AS Migration...................................... 221
Allowing an AS Number to Appear in its Own AS Path............................................ 222
Enabling Neighbor Graceful Restart.............................................................................223
Filtering on an AS-Path Attribute.................................................................................. 224
Regular Expressions as Filters........................................................................................ 225
Redistributing Routes.......................................................................................................227
Enabling Additional Paths............................................................................................... 227
Configuring IP Community Lists...................................................................................228
Configuring an IP Extended Community List.............................................................229
Filtering Routes with Community Lists........................................................................230
Manipulating the COMMUNITY Attribute.................................................................... 231
Changing MED Attributes............................................................................................... 233
Changing the LOCAL_PREFERENCE Attribute.......................................................... 233
Changing the NEXT_HOP Attribute............................................................................. 234
Changing the WEIGHT Attribute...................................................................................234
Enabling Multipath........................................................................................................... 235
Filtering BGP Routes........................................................................................................ 235
Filtering BGP Routes Using Route Maps......................................................................237
Filtering BGP Routes Using AS-PATH Information....................................................237
Configuring BGP Route Reflectors...............................................................................238
Aggregating Routes......................................................................................................... 239
Configuring BGP Confederations.................................................................................239
Enabling Route Flap Dampening.................................................................................. 240
Changing BGP Timers..................................................................................................... 243
Enabling BGP Neighbor Soft-Reconfiguration.......................................................... 243
Route Map Continue....................................................................................................... 245
Enabling MBGP Configurations...........................................................................................245
BGP Regular Expression Optimization.............................................................................. 246
Debugging BGP......................................................................................................................246
Version 9.10(0.0) 8