BGP peer groups


A [BGP](/bgp) neighbor-group is a template that holds address-family independent and address-family dependent configurations associated with a neighbor.  Once configured, each neighbor can inherit the configuration through the `use` command.  An example of such an implementation can be found below:

  ```
  RP/0/0/CPU0:router(config)# router bgp 140
  RP/0/0/CPU0:router(config-bgp)# neighbor-group AS_1
  RP/0/0/CPU0:router(config-bgp-nbrgrp)# remote-as 1
  RP/0/0/CPU0:router(config-bgp-nbrgrp)# exit
  RP/0/0/CPU0:router(config-bgp)# neighbor-group adv_15
  RP/0/0/CPU0:router(config-bgp-nbrgrp)# remote-as 10
  RP/0/0/CPU0:router(config-bgp-nbrgrp)# advertisement-interval 15
  RP/0/0/CPU0:router(config-bgp-nbrgrp)# exit
  RP/0/0/CPU0:router(config-bgp)# neighbor 10.0.101.5
  RP/0/0/CPU0:router(config-bgp-nbr)# use neighbor-group AS_1
  RP/0/0/CPU0:router(config-bgp-nbr)# exit
  RP/0/0/CPU0:router(config-bgp)# neighbor 10.0.101.10
  RP/0/0/CPU0:router(config-bgp-nbr)# use neighbor-group adv_15
  ```

This command is exclusively available on the IOS-XR.  IOS-XE platforms can use [BGP peer groups](/bgp-peer-groups) to achieve similar results.


Links:

https://forum.networklessons.com/t/bgp-peer-groups-on-cisco-ios/1237/49?u=lagapides

https://www.cisco.com/c/en/us/td/docs/routers/xr12000/software/xr12k_r4-1/routing/configuration/guide/routing_cg41xr12k_chapter1.html#task_1213997

BGP neighbor-group

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BGP neighbor-group

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