Configuring BGP MDT peers or peer groups

Perform this task so that the PE can exchange MDT information with the BGP peer or peer group. MDT information includes the IP address of the PE and default-group to which the PE belongs. On a public network running PIM-SSM, the multicast VPN establishes a default-MDT rooted at the PE (multicast source) based on the MDT information.

Before you configure a BGP MDT peer or peer group, you must create a BGP peer or peer group in BGP instance view. For more information about creating a BGP peer or peer group, see BGP in Layer 3—IP Routing Configuration Guide.

1. Enter system view.

   system-view

2. Enter BGP instance view.

   bgp as-number [ instance instance-name ]

3. Create a BGP IPv4 MDT address family and enter its view.

   address-family ipv4 mdt

   By default, no BGP IPv4 address family exists.

4. Enable the device to exchange MDT routing information with the BGP peer or the peer group.

   peer { group-name | ip-address [ mask-length ] } enable

   By default, the device cannot exchange BGP MDT routing information with a BGP peer or peer group.

   For more information about this command, see Layer 3—IP Routing Configuration Guide.