Administrator Guide

Version Description
8.2.1.0 Introduced on the E-Series ExaScale.
7.4.1.0 Introduced
Usage
Information
If you configure the set ipv6 next-hop command in ROUTE-MAP mode, its configuration takes
precedence over the neighbor next-hop-self command.
If you do not use the all keyword, the next hop of only eBGP-learned routes is updated by the route
reflector. If you use the all keyword, the next hop of both eBGP- and iBGP-learned routes are updated
by the route reflector.
neighbor peer-group (assigning peers)
Allows you to assign one peer to a existing peer group.
C9000 Series
Syntax
neighbor ipv6-address peer-group peer-group-name
To delete a peer from a peer group, use the no neighbor ipv6-address peer-group peer-
group-name command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal fields of zeros.
peer-group peer-
group-name
Enter the keywords peer-group followed by the name of a configured peer
group. The maximum is 16 characters.
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
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.
Border Gateway Protocol 471