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Version Description
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage
Information
You can assign up to 256 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
if a neighbor’s configuration is more specific than its peer group’s configuration,
the neighbor may retain its configuration after it is added to the peer group. The
neighbor’s configuration does not affect outgoing updates.
A peer group must exist (be enabled) before you add a peer to it. If the peer group
is disabled (shutdown), the peers within that group are also disabled (shutdown).
In BGP, you cannot associate a peer to a peer-group without configuring the
remote-as for Internal BGP (IBGP) or External BGP (EBGP).
This command automatically restarts the neighbor session for the configuration to
take effect.
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.
S4820T
Syntax
neighbor peer-group-name peer-group
To delete a peer group, use the no neighbor peer-group-name peer-group
command.
460
Border Gateway Protocol