Reference Guide

352 | Border Gateway Protocol IPv4 (BGPv4)
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To delete a peer group, use the no neighbor peer-group-name peer-group command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
When a peer group is created, it is disabled (shut mode).
Related
Commands
Command
History
neighbor peer-group passive
c e s
Enable passive peering on a BGP peer group, that is, the peer group does not send an OPEN message,
but will respond to one.
Syntax
neighbor peer-group-name peer-group passive [match-af]
To delete a passive peer-group, use the no neighbor peer-group-name peer-group passive
command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
After you configure a peer group as passive, you must assign it a subnet using the neighbor
soft-reconfiguration inbound command.
Use the keyword match-af to restrict the peer adjacency established with a passive peer group.
Entering match-af requires that a peer’s address family matches the address family of the subnet
assigned to the peer group before the peer’s adjacency is brought up. For example, if the address
family of the peer group’s subnet is IPv6, only IPv6 neighbors in the subnet can be brought up in a
peering session.
You can only specify the match-af option when you first enter the neighbor peer-group passive
command to configure passive peering for a BGP group. An error message is displayed if you later try
to add this option to an existing passive peer group by re-entering the command.
peer-group-name
Enter a text string up to 16 characters long as the name of the peer group.
neighbor peer-group (assigning peers) Assign routers to a peer group.
neighbor remote-as Assign a indirectly connected AS to a neighbor or peer group.
neighbor shutdown Disable a peer or peer group.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
peer-group-name
Enter a text string up to 16 characters long as the name of the peer group.
match-af
(Optional) Enter the keyword match-af to require that the address family of a peer
matches the address family of the subnet assigned to the specified peer group before
the peer’s adjacency is brought up.