187
Ste
Command
Remarks
5. Configure the data-holddown
period.
data-holddown delay
Optional.
The default setting is 60 seconds.
Enabling data-group reuse logging
For a given VPN, the number of VPN multicast streams to be switched to data-MDTs might exceed the
number of addresses in the data-group address range. In this case, the VPN instance on the source-side
PE device can reuse the addresses in the address range. With data-group reuse logging enabled, the
address reuse information will be logged.
Attributed to the MD module, the group address reuse logging information has a severity level
informational. For more information about the logging information, see Network Management and
Monitoring Configuration Guide.
Perform the following configuration on the PE.
To enable the data-group reuse logging:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter MD view.
multicast-domain vpn-instance
vpn-instance-name
N/A
3. Enable the data-group reuse
logging.
log data-group-reuse
By default, the data-group reuse
logging is disabled.
Configuring BGP MDT
If PIM-SSM is running on the public network, you must 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.
• Configure the PIM-SSM on the public network.
• Determine the IP addresses of the MDT peers.
• Determine the cluster IDs of the route reflectors.
Enabling BGP MDT peers or peer groups
You must complete the following steps for Local routers to exchange the MDT routing information with
their peers or peer groups:
1. Create a BGP IPv4 MDT address family, and enter its view.
2. Use the peer enable command to enable BGP to exchange routing information for an address
family with a peers or peer groups.