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    Reverting RSTP or VSTP from Forced IEEE 802.1D STP

    On ACX Series routers on which Rapid Spanning-Tree Protocol (RSTP) or VLAN Spanning-Tree Protocol (VSTP) has been forced to run as the original IEEE 802.1D Spanning-Tree Protocol (STP) version, you can revert to RSTP or VSTP.

    To revert from the forced instance of the original IEEE 802.1D STP version to the configured RSTP or VSTP version:

    1. Remove the force-version statement from the RSTP or VSTP configuration:

      user@host# delete force-version

      Include this statement under the RSTP or VSTP hierarchy level:

      • [edit protocols rstp]
      • [edit protocols vstp]
      • [edit routing-instances routing-instance-name protocols rstp]
      • [edit routing-instances routing-instance-name protocols vstp]
    2. Revert the forced IEEE 802.1D STP to run as the configured RSTP or VSTP:

      user@host# clear spanning-tree protocol-migration <interface interface-name> <routing-instance routing-instance-name>
      To revert the STP protocol for the specified interface only, specify the interface interface-name option.

      To revert the STP protocol for a particular routing instance only, specify the routing-instance routing-instance-name option.

    Modified: 2013-08-23