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Configuring Multicast Snooping to Ignore Spanning Tree Topology Change Messages

You can configure the multicast snooping process for a virtual switch to ignore VPLS root protection topology change messages.

Before you begin, complete the following tasks:

  1. Configure the spanning-tree protocol. For configuration details, see one of the following topics:

  2. Configure VPLS root protection. For configuration details, see one of the following topics:

To configure multicast snooping to ignore spanning tree topology change messages:

  1. Configure a virtual-switch routing instance to isolate a LAN segment with its VSTP instance.

    1. Enable configuration of a virtual switch routing instance:

      You can configure multicast snooping to ignore messages about spanning tree topology changes for the virtual-switch routing-instance type only.


    2. Enable configuration of a bridge domain:


    3. Configure the logical interfaces for the bridge domain in the virtual switch:

    4. Configure the VLAN identifiers for the bridge domain in the virtual switch. For detailed information, see Configuring a Virtual Switch Routing Instance on MX Series Routers.
  2. Configure the multicast snooping process to ignore any spanning tree topology change messages sent to the virtual switch routing instance:
  3. Verify the configuration of multicast snooping for the virtual-switch routing instance to ignore spanning tree topology change messages:

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