CLI Guide

When you add a peer to a peer group, it inherits all the peer group’s configured
parameters. A peer cannot become part of a peer group if any of the following
commands are configured on the peer:
• neighbor advertisement-interval
• neighbor distribute-list
• neighbor route-map
• neighbor route-reflector-client
• neighbor shutdown
A neighbor may keep its configuration after it was added to a peer group if the
neighbor’s configuration is more specific than the peer group’s, and the neighbor’s
configuration does not affect outgoing updates.
A peer group must exist before you add a peer to it. If the peer group is disabled
(shutdown) the peers within the group are also disabled (shutdown).
Related
Commands
clear ip bgp — resets BGP sessions.
neighbor peer-group (creating group) — creates a peer group.
show ip bgp peer-group — views BGP peers.
show ip bgp neighbors — views BGP neighbors configurations.
neighbor peer-group (creating group)
Allows you to create a peer group and assign it a name.
Syntax
neighbor peer-group-name peer-group
To delete a peer group, use the no neighbor peer-group-name peer-group
command.
Parameters
peer-group-name Enter a text string up to 16 characters long as the name of
the peer group.
Defaults Not configured.
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
382
Border Gateway Protocol IPv4 (BGPv4)