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Implementing BGP on Cisco IOS XR Software
Information About Implementing BGP on Cisco IOS XR Software
RC-14
Cisco IOS XR Routing Configuration Guide
RP/0/RP0/CPU0:router# show bgp session-group GROUP_1 configuration
session-group GROUP_1
ebgp-multihop 2 [s:GROUP_2]
update-source Loopback0 []
dmz-link-bandwidth [s:GROUP_2 s:GROUP_3]
The following is sample output from the show bgp session-group command with the inheritance
keyword showing that the GROUP_1 session group inherits session parameters from the GROUP_3 and
GROUP_2 session groups:
RP/0/RP0/CPU0:router# show bgp session-group GROUP_1 inheritance
Session: s:GROUP_2 s:GROUP_3
The following is sample output from the show bgp session-group command with the users keyword
showing that both the GROUP_1 and GROUP_2 session groups inherit session parameters from the
GROUP_3 session group:
RP/0/RP0/CPU0:router# show bgp session-group GROUP_3 users
Session: s:GROUP_1 s:GROUP_2
show bgp neighbor-group
Use the show bgp neighbor-group command to display neighbor groups:
• Use the configuration keyword to display the effective configuration for the neighbor group,
including any settings that have been inherited from neighbor groups used by this neighbor group.
• Use the inheritance keyword to display the address family groups, session groups, and neighbor
groups from which this neighbor group is capable of inheriting configuration.
• Use the users keyword to display the neighbors and neighbor groups that inherit configuration from
this neighbor group.
The examples are based on the following group configuration:
RP/0/RP0/CPU0:router(config)# router bgp 140
RP/0/RP0/CPU0:router(config-bgp)# af-group GROUP_3 address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-afgrp)# remove-private-as
RP/0/RP0/CPU0:router(config-bgp-afgrp)# soft-reconfiguration inbound
RP/0/RP0/CPU0:router(config-bgp-afgrp)# exit
RP/0/RP0/CPU0:router(config-bgp)# af-group GROUP_2 address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-afgrp)# use af-group GROUP_3
RP/0/RP0/CPU0:router(config-bgp-afgrp)# send-community-ebgp
RP/0/RP0/CPU0:router(config-bgp-afgrp)# send-extended-community-ebgp
RP/0/RP0/CPU0:router(config-bgp-afgrp)# capability orf prefix-list both
RP/0/RP0/CPU0:router(config-bgp-afgrp)# exit
RP/0/RP0/CPU0:router(config-bgp)# session-group GROUP_3
RP/0/RP0/CPU0:router(config-bgp-sngrp)# timers 30 90
RP/0/RP0/CPU0:router(config-bgp-sngrp)# exit
RP/0/RP0/CPU0:router(config-bgp)# neighbor-group GROUP_1
RP/0/RP0/CPU0:router(config-bgp-nbrgrp)# remote-as 1982
RP/0/RP0/CPU0:router(config-bgp-nbrgrp)# use neighbor-group GROUP_2
RP/0/RP0/CPU0:router(config-bgp-nbrgrp)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbrgrp-af)# exit
RP/0/RP0/CPU0:router(config-nbrgrp)# exit
RP/0/RP0/CPU0:router(config-bgp)# neighbor-group GROUP_2
RP/0/RP0/CPU0:router(config-bgp-nbrgrp)# use session-group GROUP_3
RP/0/RP0/CPU0:router(config-bgp-nbrgrp)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-bgp-nbrgrp-af)# use af-group GROUP_2
RP/0/RP0/CPU0:router(config-bgp-nbrgrp-af)# weight 100