Configuring An Mbgp Route Reflector; Displaying And Maintaining Mbgp; Displaying Mbgp - 3Com S7906E Configuration Manual

Configuring an MBGP Route Reflector

To guarantee the connectivity between multicast iBGP peers in an AS, you need to make them fully
meshed. But this becomes unpractical when there are large numbers of multicast iBGP peers.
Configuring route reflectors can solve this problem.
Follow these steps to configure an MBGP route reflector:
To do...
Enter system view
Enter BGP view
Enter IPv4 MBGP address
family view
Configure the router as a route
reflector and specify an MBGP
peer/peer group as its client
Enable route reflection
between clients
Configure the cluster ID of the
route reflector
In general, it is not required that clients of a route reflector be fully meshed. The route reflector
forwards routing information between clients. If clients are fully meshed, you can disable route
reflection between clients to reduce routing costs.
In general, a cluster has only one route reflector, and the router ID of the route reflector is used to
identify the cluster. You can configure multiple route reflectors to improve network stability. In this
case, you need to specify the same cluster ID for these route reflectors to avoid routing loops.

Displaying and Maintaining MBGP

Displaying MBGP

To do...
Display the IPv4 MBGP routing
table
Display the IPv4 MBGP routing
information matching the
specified destination IP
address
Display MBGP peer group
information
Use the command...
system-view
bgp as-number
ipv4-family multicast
peer { group-name |
peer-address } reflect-client
reflect between-clients
reflector cluster-id cluster-id
Use the command...
display ip multicast routing-table [ verbose]
display ip multicast routing-table ip-address
[ mask-length | mask ] [ longer-match ]
[ verbose ]
display bgp multicast group [ group-name ]
1-15
Remarks
—
—
—
Required
Not configured by default.
Optional
Enabled by default.
Optional
By default, a route reflector
uses its router ID as the cluster
ID.
Remarks
Available in
any view
Available in
any view
Available in
any view