After you create a group name and assign options, add neighbors within the same autonomous system to create IBGP connections and neighbors in different autonomous systems to create EBGP peers. All parameters configured for the peer group level are applied to each neighbor, but a group parameter can be overridden on a specific neighbor basis.
The following is a sample output for neighbors configured in group ‟headquarters1”.
ALA-B>config>router>bgp# info
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...
group "headquarters1"
description "HQ execs"
local-address 10.0.0.104
disable-communities standard extended
ttl-security 255
neighbor 10.0.0.5
passive
peer-as 300
exit
neighbor 10.0.0.106
peer-as 100
exit
neighbor 10.5.0.2
hold-time 90
keepalive 30
min-as-origination 15
local-preference 170
peer-as 10701
exit
neighbor 10.5.1.2
hold-time 90
keepalive 30
min-as-origination 15
local-preference 100
min-route-advertisement 30
preference 170
peer-as 10702
exit
exit
...
----------------------------------------------
ALA-B>config>router>bgp#