Mode

To be compatible with the different iterations of the IEEE 802.1D standard, the 7210 SAS devices support several variants of the Spanning Tree protocol:

• rstp

  Rapid Spanning Tree Protocol (RSTP) compliant with IEEE 802.1D-2004 - default mode.

• dot1w

  Compliant with IEEE 802.1w.

• comp-dot1w

  Operation as in RSTP but backwards compatible with IEEE 802.1w. This mode was introduced for interoperability with some MTU types.

• mstp

  Compliant with the Multiple Spanning Tree Protocol specified in IEEE 802.1Q REV/D5.0-09/2005. This mode of operation is only supported in an mVPLS.

See section Spanning tree operating modes for details on these modes.

— config>service>vpls service-id# stp
    — mode {rstp | comp-dot1w | dot1w | mstp}

Default: rstp