Configuring An Mbgp Route Reflector - H3C S5500-EI Configuration Manual

Step
4. Advertise the COMMUNITY
attribute to an MBGP peer or
a peer group.
5. Apply a routing policy to
routes advertised to an MBGP
peer or a peer group.

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
1. Enter system view.
2. Enter BGP view.
3. Enter IPv4 MBGP address
family view.
4. Configure the router as a
route reflector and specify an
MBGP peer or a peer group
as its client.
5. Enable route reflection
between clients.
6. Configure the cluster ID of the
route reflector.
Command
•
Advertise the COMMUNITY attribute to an
MBGP peer or a peer group:
peer { group-name | ip-address }
advertise-community
•
Advertise the extended community attribute
to an MBGP peer or a peer group:
peer { group-name | ip-address }
advertise-ext-community
peer { group-name | ip-address } route-policy
route-policy-name export
Command
system-view
bgp as-number
ipv4-family multicast
peer { group-name | peer-address }
reflect-client
reflect between-clients
reflector cluster-id cluster-id
259
Remarks
Use either command
Not configured by
default.
Not configured by
default.
Remarks
N/A
N/A
N/A
Not configured by default.
Optional.
Enabled by default.
Optional.
By default, a route reflector uses its
router ID as the cluster ID.