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Reverting to RSTP or VSTP from Forced IEEE 802.1D STP

On MX Series routers and EX Series switches 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 back to RSTP or VSTP.

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

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

    user@host# delete protocols rstp force-version stpuser@host# delete protocols vstp force-version stp

    Include this statement at the following hierarchy levels:

    • [edit logical-systems routing-instance-name protocols rstp]
    • [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 globally, issue the statement without options (clear spanning-tree protocol-migration).

    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.

 

Related Documentation

 

Published: 2015-04-08

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