Avaya 1000 Series Configuration Manual page 331

By default Avaya assigns a particular neighbor in to one of the following 3 neighbor groups
depending on their type:
• IBGP Neighbor > BgpInternal
• EBGP Neighbor > BgpExternal
• EBGP Multi-Hop Neighbor > BgpExternal_Rt
Other than the above 3 default groups, a user can also create user-defined groups and assign
neighbors to it.
A user-defined group can be created by using the following command:
router bgp 100
group ToAvaya2 external
group ToAvaya2 external
A neighbor can be assigned to a group by using the following command:
router bgp 100
neighbor 20.1.1.2 300
neighbor_group ToAvaya2
All the groups defined in the system can be displayed using the following show command:
show ip bgp groups
BGP group is BgpExternal
group type is
peers 1, members:
30.30.30.3
options set : None
BGP group is ToAvaya2
group type is
peers 1, members:
20.1.1.2
options set :
None
In the above show command output, ToAvaya2 is a user-defined group which is external and
BgpExternal is the default group. Since neighbor 30.30.30.3 was not assigned to any user
specific peer group, Avaya assigns it to the default group which is BgpExternal.
Any EBGP Multi-Hop neighbor needs to be applied to a group, which is of type External_Rt
only. Directly connected EBGP neighbors can be assigned to group type External.
Under a neighbor group we have the following commands that can be set:
Avaya1/configure/router/bgp 100/group To3rdPartyRouter external_rt>
?
commit > commit configuration
distribute_list > filter updates to this group
filter_list > establish BGP filters
next_hop_self > Disable nexthop calculation for this
group
Avaya Secure Router 1000 Series Configuration Guide
External, total peers 1, established
External, total peers 1, established
Configuring Peer Groups
December 2010 331