Administrator Guide

bgp cluster-id
Assign a cluster ID to a BGP cluster with more than one route reflector.
C9000 Series
Syntax
bgp cluster-id {ip-address | number}
To delete a cluster ID, use the no bgp cluster-id {ip-address | number} command.
Parameters
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.
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
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 is displayed as an integer.
Related
Commands
● bgp client-to-client reflection – enables route reflection between route reflector and clients.
● neighbor route-reflector-client – configures a route reflector and clients.
● show ip bgp cluster-list – views paths with a cluster ID.
bgp confederation identifier
Configure an identifier for a BGP confederation.
C9000 Series
Syntax
bgp confederation identifier as-number
To delete a BGP confederation identifier, use the no bgp confederation identifier as-
number command.
Parameters
as-number Enter the AS number. The range is 1 to 65535.
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.
Border Gateway Protocol 443