Reference Guide

Border Gateway Protocol IPv4 (BGPv4) | 323
bgp cluster-id
c e s
Assign a cluster ID to a BGP cluster with more than one route reflector.
Syntax
bgp cluster-id {ip-address | number}
To delete a cluster ID, use the no bgp cluster-id {ip-address | number} command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
When a BGP cluster contains only one route reflector, the cluster ID is the route reflector’s router ID.
For redundancy, a BGP cluster may contain two or more route reflectors and you assign a cluster ID
with the bgp cluster-id command. Without a cluster ID, the route reflector cannot recognize route
updates from the other route reflectors within the cluster.
The default format for displaying the cluster-id is dotted decimal, but if you enter the cluster-id as an
integer, it will be displayed as an integer.
Related
Commands
Command
History
bgp confederation identifier
c e s
Configure an identifier for a BGP confederation.
Syntax
bgp confederation identifier as-number
To delete a BGP confederation identifier, use the no bgp confederation identifier as-number
command.
Parameters
Defaults
Not configured.
Command Modes
ROUTER BGP
Usage
Information
You must configure your system to accept 4-Byte formats before entering a 4-Byte AS Number. All
the routers in the Confederation must be 4 or 2-Byte identified routers. You cannot mix them.
ip-address Enter an IP address as the route reflector cluster ID.
number
Enter a route reflector cluster ID as a number from 1 to 4294967295.
bgp client-to-client reflection Enable route reflection between route reflector and clients.
neighbor route-reflector-client Configure a route reflector and clients.
show ip bgp cluster-list View paths with a cluster ID.
Version 7.8.1.0 Introduced support on S-Series
Version 7.7.1.0 Introduced support on C-Series
as-number
Enter the AS number.
Range: 0-65535 (2-Byte)
or
1-4294967295 (4-Byte)
or
0.1-65535.65535 (Dotted format)