H3C Technologies H3C S12500 Series Switches - Manual (Page 271)

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Configuration procedure
To enable the switch-group reuse logging:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter VPN instance view. ip vpn-instance vpn-instance-name N/A
3. Enable the switch-group reuse
logging.
multicast-domain log
switch-group-reuse
Disabled by default.
Configuring BGP MDT
If PIM-SSM is running on the public network, you must configure BGP MDT.
Before you configure BGP MDT, complete the following tasks:
• Configure MPLS L3VPN.
• Configure basic BGP functions.
• Determine the route reflector cluster ID.
Configuring BGP MDT peers or peer groups
With BGP MDT peers or peer groups configured, a PE exchanges the BGP MDT routing information with
other PEs to obtain their addresses and thus establish a share-MDT.
A BGP MDT peer or peer group is a peer or peer group created in BGP-MDT subaddress family view.
Configure the BGP MDT peer or peer group before enabling it.
To configure BGP MDT peers or peer groups:
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. Enable a BGP MDT peer or
peer group.
peer { group-name | ip-address }
enable
Disabled by default.
5. Add a peer to the BGP MDT
peer group.
peer ip-address group group-name
Optional.
By default, a BGP MDT peer
belongs to no peer groups.
Configuring a BGP MDT route reflector
BGP MDT peers in the same AS must be fully meshed to maintain connectivity. However, when many BGP
MDT peers exist in an AS, connection establishment among them might cause great expenses. To reduce
connections between them, you can configure one of them as a route reflector and specify other routers