Configuring mLDP P2MP Tunnels with Dual-Root Protection

This section describes how to configure mLDP P2MP tunnels with dual-root protection to ensure reliable transmission of multicast traffic.

Procedure

Perform the following steps on each root node:
1. Run system-view
  The system view is displayed.
2. Run vsi vsi-name
  A VSI is created, and the VSI view is displayed.
3. (Optional) Run ignore-ac-state
  The VSI is configured to ignore AC status changes.
4. Run inclusive-provider-tunnel
  The VSI-Inclusive view is created and displayed.
5. Run root
  The current device is specified as the root node for multicast VPLS, and the VSI-Inclusive-Root view is displayed.
6. Run data-switch disable
  The current device is disabled from transmitting multicast traffic over P2P tunnels when the mLDP P2MP tunnel is Down.
7. (Optional) Run bfd track interface interface-type interface-number
  BFD is configured to monitor the upstream AC interface.
8. Run mldp p2mp
  The tunnel type is specified as mLDP P2MP for the local VSI, and the VSI-Inclusive-Root-mLDP-P2MP view is displayed.
9. Run root-ip ip-address
  An IP address is specified for the mLDP P2MP tunnel's root node.
10. Run commit
  The configuration is committed.
Perform the following steps on each leaf node:
1. Run system-view
  The system view is displayed.
2. Run mpls l2vpn
  The MPLS L2VPN view is displayed.
3. Run vpls p2mp group-select ldp enable
  The current device is configured to receive and process traffic from only the primary mLDP P2MP tunnel.
4. Run quit
  Return to the system view.
5. Run vsi vsi-name
  A VSI is created, and the VSI view is displayed.
6. Run inclusive-provider-tunnel
  The VSI-Inclusive view is created and displayed.
7. Run leaf
  The current device is specified as a leaf node for multicast VPLS.
8. Run primary-root priRootIp [ trackbfd ] backup-rootbakRootIp [ trackbfd ] [ wtrwtrValue ]
  The primary and backup mLDP P2MP tunnels are specified.
9. Run commit
  The configuration is committed.