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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:

        [edit]user@host# edit routing-instances routing-instance-nameuser@host# set instance-type virtual-switch
        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:

        [edit routing-instances routing-instance-name]user@host# edit bridge-domains bridge-domain-nameuser@host# set domain-type bridge

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

        [edit routing-instances routing-instance-name bridge-domains bridge-domain-name]user@host# set interface interface-name
      4. Configure the VLAN identifiers for the bridge domain in the virtual switch. For detailed information, see Configuring a Virtual Switch Routing Instance.

    2. Configure the multicast snooping process to ignore any spanning tree topology change messages sent to the virtual switch routing instance:

      [edit routing-instances routing-instance-name bridge-domains bridge-domain-name]user@host# set multicast-snooping-options ignore-stp-topology-change

    3. Verify the configuration of multicast snooping for the virtual-switch routing instance to ignore spanning tree topology change messages:

      [edit routing-instances routing-instance-name bridge-domains bridge-domain-name]user@host# topuser@host# show routing-instances routing-instance-name {instance-type virtual-switch;bridge-domains {bridge-domain-name {domain-type bridge {interface interface-name;...VLAN-identifiers-configuration...multicast-snooping-options {ignore-stp-topology-change;}}}}
     

    Related Documentation

     

    Published: 2012-11-26

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