Administrator Guide
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage Information
You can assign up to 64 peers to one peer group.
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 send-community
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 – view BGP peers.
• show ip bgp neighborsshow ip bgp neighbors View BGP neighbors configurations.
neighbor peer-group (creating group)
Allows you to create a peer group and assign it a name.
C9000 Series
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
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage Information When a peer group is created, it is disabled (shut mode).
Related
Commands
• neighbor peer-group (assigning peers) – assigns routers to a peer group.
• neighbor remote-as – assigns an indirectly connected AS to a neighbor or peer group.
• neighbor shutdown – disables a peer or peer group.
446 Border Gateway Protocol