
Configuring and Customizing BGP
303528-A Rev 00
8-81
Configuring a Route Reflector Cluster
You can connect multiple route reflectors in a route reflector cluster. Within a
cluster, IBGP route reflectors must be connected in a full-mesh topology.
To configure a route reflector in a cluster, you establish a peer-to-peer session with
one or more reflectors in the same cluster. You can do this with the BCC or Site
Manager.
Using the BCC
To establish a peer-to-peer session with another route reflector in the same cluster,
navigate to the global BGP prompt and enter:
peer local
local_reflector_address
remote
remote_reflector_address
as
as_number
local_reflector_address is the IP address of an interface on the local route
reflector.
remote_reflector_address is the IP address of an interface on the remote route
reflector.
as_number is an integer identifying the AS in which remote reflector is located.
(Because the reflector and the client are located in the same AS, BGP recognizes
that this is an IBGP session.)
When the session-specific prompt appears, enter the following command to
specify that the remote route reflector is an internal peer (that is, located in the
same cluster):
peer-mode reflector-internal
For example, the following command sequence defines a peer-to-peer session
between two route reflectors (represented by addresses 2.2.2.2 and 2.2.2.3)
located in the same cluster in AS 2:
/jointfilesconvert/92449/bgp# peer local 2.2.2.2 remote 2.2.2.3 as 2
peer/2.2.2.2/2.2.2.3# peer-mode server-internal
peer/2.2.2.2/2.2.2.3#
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