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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 data-group reuse
logging.
multicast-domain log
data-group-reuse
Required.
Disabled by default.
Configuring BGP MDT
If PIM-SSM is running in the public network, you need to configure BGP MDT.
Configuration prerequisites
Before you configure BGP MDT, complete the following tasks:
•
Configure MPLS L3VPN on the public network.
•
Configure basic BGP functions on the public network.
•
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.
Perform the following configuration on the PE.
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.
NOTE:
A BGP MDT peer or peer group is a peer or peer group created in BGP-MDT subaddress family
view.
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
