Users Guide

Defaults Enabled when a route reector is congured.
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information Route reection to clients is not necessary if all client routers are fully meshed.
Related Commands
bgp cluster-id — assigns an ID to a BGP cluster with two or more route reectors.
neighbor route-reector-client — congures a route reector and clients.
bgp cluster-id
Assign a cluster ID to a BGP cluster with more than one route reector.
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 reector cluster ID.
number Enter a route reector cluster ID as a number from 1 to 4294967295.
Defaults Not congured.
Command Modes ROUTER BGP
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
When a BGP cluster contains only one route reector, the cluster ID is the route reector’s router ID. For
redundancy, a BGP cluster may contain two or more route reectors. Assign a cluster ID with the bgp cluster-
id command. Without a cluster ID, the route reector cannot recognize route updates from the other route
reectors 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 reection — enables route reection between the route reector and clients.
neighbor route-reector-client — congures a route reector and clients.
show ip bgp cluster-list — views paths with a cluster ID.
Border Gateway Protocol IPv4 (BGPv4) 297