Reference Guide

Peer templates
To congure multiple BGP neighbors at one time, you can create and populate a BGP peer template. An advantage of conguring peer
templates is that members of a peer template inherit the conguration properties of the template and share update policy. Always create a
peer template and assign a name to it before adding members to the peer template. Create a peer template before conguring any route
policies for the template.
NOTE: An outbound lter policy, distribute list or route map, is not supported on a peer group
member.
NOTE: When creating a template command, you must include the remote-as command.
1 Enable BGP, and assign the AS number to the local BGP speaker in CONFIGURATION mode, from 1 to 65535 for 2 byte, 1 to
4294967295 | 0.1 to 65535.65535 for 4 byte, or 0.1 to 65535.65535 in dotted format.
router bgp as-number
2 Create a peer template by assigning a neighborhood name to it in ROUTER-BGP mode.
template template-name
3 Add a neighbor as a remote AS in ROUTER-BGP mode, from 1 to 65535 for 2 byte, 1 to 4294967295 | 0.1 to 65535.65535 for 4 byte,
or 0.1 to 65535.65535 in dotted format.
neighbor ip-address
4 Add a remote neighbor, and enter the AS number in ROUTER-NEIGHBOR mode.
remote-as as-number
• To add an EBGP neighbor, congure the as-number parameter with a number dierent from the BGP as-number congured in
the router bgp as-number command.
• To add an IBGP neighbor, congure the as-number parameter with the same BGP as-number congured in the router bgp
as-number command.
5 Assign a peer-template with a peer-group name from which to inherit to the neighbor in ROUTER-NEIGHBOR mode.
inherit template template-name
6 Enable the neighbor in ROUTER-BGP mode.
neighbor ip-address
7 Enable the peer-group in ROUTER-NEIGHBOR mode.
no shutdown
When you add a peer to a peer group, it inherits all the peer group congured parameters. When you disable a peer group, all the peers
within the peer template that are in the Established state move to the Idle state. A neighbor cannot become a part of a peer group if it has
any of these commands congured:
• advertisement-interval
• next-hop-self
•
route-map out
• route-reflector-client
• send-community
A neighbor may keep its conguration after it is added to a peer group if the neighbor conguration is more specic than the peer group
and if the neighbor conguration does not aect outgoing updates.
To display the peer-group conguration assigned to a BGP neighbor, enter the show ip bgp peer-group peer-group-name
command. The show ip bgp neighbor command output does not display peer-group congurations.
Congure peer templates
OS10(config)# router bgp 300
OS10(config-router-bgp-300)# template ebgppg
Layer 3
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