H3C Technologies H3C S12500 Series Switches - Manual (Page 248)

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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 large numbers of multicast IBGP peers exist. Configuring
route reflectors can solve this problem.
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 identifies 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.
To configure an MBGP route reflector:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter IPv4 MBGP address
family view.
ipv4-family multicast N/A
4. Configure the router as a
route reflector and specify an
MBGP peer/peer group as its
client.
peer { group-name | peer-address }
reflect-client
Not configured by default.
5. Enable route reflection
between clients.
reflect between-clients
Optional.
Enabled by default.
6. Configure the cluster ID of the
route reflector.
reflector cluster-id cluster-id
Optional.
By default, a route reflector uses its
router ID as the cluster ID.
Displaying and maintaining MBGP
Displaying MBGP
Task Command Remarks
Display the IPv4 MBGP routing
table. display ip multicast routing-table [ verbose] [ |
{ begin | exclude | include } regular-expression ] Available in any
view.
Display the IPv4 MBGP routing
information matching the specified
destination IP address.
display ip multicast routing-table ip-address
[ mask-length | mask ] [ longer-match ] [ verbose ]
[ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display MBGP peer group
information. display bgp multicast group [ group-name ] [ |
{ begin | exclude | include } regular-expression ] Available in any
view.
Display the advertised networks.
display bgp multicast network [ | { begin |
exclude | include } regular-expression ] Available in any
view.