Spoke SDP STP administrative state

The administrative state of STP within a spoke SDP controls how BPDUs are transmitted and handled when received. The allowable states are:

• spoke-sdp admin up

  The default administrative state is up for STP on a spoke SDP. BPDUs are handled in the normal STP manner on a spoke SDP that is administratively up.

• spoke-sdp admin down

  An administratively down state allows a service provider to prevent a spoke SDP from becoming operationally blocked. BPDUs do not originate out the spoke SDP toward the customer.

  If STP is enabled on VPLS level, but disabled on the spoke SDP, received BPDUs are discarded. Discarding the incoming BPDUs allows STP to continue to operate normally within the VPLS service while ignoring the down spoke SDP. The specified spoke SDP is always in an operationally forwarding state.

  Note: The administratively down state allows a loop to form within the VPLS.

CLI syntax:

config>service>vpls>spoke-sdp>stp#
[no] shutdown

Range

shutdown or no shutdown

Default

no shutdown (spoke-SDP admin up)