H3C Technologies H3C S12500 Series Switches - Manual (Page 272)

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as clients. The clients establish BGP MDT connections with the route reflector, and the route reflector
forwards (reflects) BGP MDT routing information between clients. In this way, the clients need not to be
fully meshed. Furthermore, you can disable client-to-client reflection to reduce overloads if the clients
have been fully meshed.
The route reflector and its clients form a cluster. In general, a cluster has only one route reflector whose
router ID identifies the cluster. However, you can configure several route reflectors in a cluster to improve
network reliability, and they must have the same cluster ID configured to avoid routing loops.
To configure a BGP MDT route reflector:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter BGP MDT sub-address
family view.
ipv4-family mdt N/A
4. Configure the local device as
a route reflector and specify
its clients.
peer { group-name | ip-address }
reflect-client By default, neither route reflectors
nor clients exist.
5. Disable route reflection
between clients.
undo reflect between-clients
Optional.
Enabled by default.
6. Configure the cluster ID of the
route reflector. reflector cluster-id { cluster-id |
ip-address }
Optional.
By default, a route reflector uses its
router ID as the cluster ID.
Displaying and maintaining multicast VPN
Task Command Remarks
Display the share-group
information of the specified VPN
instance in the MD.
display multicast-domain vpn-instance
vpn-instance-name share-group { local |
remote } [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display the switch-group
information received by the
specified VPN instance in the MD.
display multicast-domain vpn-instance
vpn-instance-name switch-group receive
[ brief | [ active | group group-address |
sender source-address | vpn-source-address
[ mask { mask-length | mask } ] |
vpn-group-address [ mask { mask-length |
mask } ] ] * ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display the switch-group
information sent by the specified
VPN instance in the MD.
display multicast-domain vpn-instance
vpn-instance-name switch-group send [ group
group-address | reuse interval |
vpn-source-address [ mask { mask-length |
mask } ] | vpn-group-address [ mask
{ mask-length | mask } ] ] * [ | { begin |
exclude | include } regular-expression ]
Available in any view.