Figure 11: BGP Peer Groups
neighbor peer-group
• Two versions of this command exist. Use to create a BGP peer group or to configure a
BGP neighbor to be a member of a peer group.
• To create a BGP peer group, specify a peerGroupName for the new peer group. Use the
no version to remove a peer group.
• To assign members to a peer group, specify an ip-address and a peerGroupName of a
BGP neighbor that belongs to this group.
• This command takes effect immediately.
• Use the no version to remove a neighbor from a peer group.
• See neighbor peer-group
NOTE: You cannot mix IPv4 and IPv6 peer members in a peer group. Only one type
peer is allowed, IPv4 or IPv6. For example, the following error is generated if an IPv6
peer group member is added to a peer group that already has IPv4 members; that is,
where the peer-group type is IPv4:
host1(config-router)#neighbor 1::1 peer-group hamburg
% Unable to set 'peer-group' for address family ipv4:unicast for peer 1::1 in
core (IPv6 peer cannot be member of a peer-group of type IPv4)
For information about the inheritance of configuration values by peer groups and peers,
see “Inheritance of Configuration Values” on page 21.
Setting the Peer Type
Each peer group must have a peer type before any BGP sessions for members of that
peer group are allowed to come up and before the Adj-RIBs-Out table of that peer group
Copyright © 2010, Juniper Networks, Inc.28
JunosE 11.2.x BGP and MPLS Configuration Guide
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