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CLI-based Configuration Guide - IP Multicast

AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R007

This document describes the principles and configurations of IP multicast, and provides configuration examples.
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Configuring BGP A-D Multicast VPN

Configuring BGP A-D Multicast VPN

BGP A-D multicast VPN is implemented in MDT-SAFI A-D or MCAST-VPN SAFI A-D mode. You need to enable the corresponding A-D address family in the BGP view when configuring BGP A-D multicast in either mode.

Context

BGP A-D multicast VPN, in either MDT-SAFI A-D or MCAST-VPN SAFI A-D mode, transmits messages between BGP peers to advertise multicast VPN configurations, including the RD and Share-Group address. After member PEs in a VPN are automatically discovered, VPN multicast services are transmitted along the public network tunnel based on the PIM-SSM MDT. Compared with MDT-SAFI A-D, MCAST-VPN SAFI A-D is defined in a broader sense and supports more extensions. More multicast VPN attributes and information used for setting up the public network tunnel are carried in MCAST-VPN SAFI messages. For this reason, the MCAST-VPN SAFI A-D mode applies to next-generation multicast VPN.

NOTE:

If multicast VPN is implemented in BGP A-D mode, the configured A-D mode must be consistent with the A-D address family type configured in the BGP view.

The same VPN instance enabled with the IPv4 address family supports only one A-D mode. Different VPN instances enabled with the IPv4 address family on the same PE must be configured with different A-D modes. Enable the two types of A-D address families in the BGP view, ensuring that each VPN instance selects a specific A-D mode to forward multicast data.

Procedure

  • Configure the MDT-SAFI A-D mode.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    3. Run:

      ipv4-family mdt

      The BGP-MDT address family view is displayed.

    4. Run:

      peer { group-name | ipv4-address } enable

      Route exchange with a specific peer or peer group is enabled in the BGP-MDT address family view.

    5. Run:

      quit

      The BGP-MDT address family view is closed.

    6. Run:

      quit

      The BGP view is closed.

    7. Run:

      ip vpn-instance vpn-instance-name

      The VPN instance view is displayed.

    8. Run:

      ipv4-family

      The VPN instance IPv4 address family is enabled and its view is displayed.

    9. Run:

      auto-discovery mdt [ import route-policy route-policy-name ]

      The MDT-SAFI A-D mode is configured for the VPN instance IPv4 address family.

  • Configure the MCAST-VPN SAFI A-D mode.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      bgp { as-number-plain | as-number-dot }

      The BGP view is displayed.

    3. Run:

      ipv4-family mvpn

      The BGP-MVPN address family view is displayed.

    4. Run:

      peer { group-name | ipv4-address } enable

      Route exchange with a specific peer or peer group is enabled in the BGP-MVPN address family view.

    5. Run:

      quit

      The BGP-MVPN address family view is closed.

    6. Run:

      quit

      The BGP view is closed.

    7. Run:

      ip vpn-instance vpn-instance-name

      The VPN instance view is displayed.

    8. Run:

      ipv4-family

      The VPN instance IPv4 address family is enabled and its view is displayed.

    9. Run:

      auto-discovery mvpn [ import route-policy route-policy-name ]

      The MCAST-VPN SAFI A-D mode is configured for the VPN instance IPv4 address family.

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Updated: 2019-06-12

Document ID: EDOC1000097181

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