When a VPLS has STP enabled, each spoke-SDP within the VPLS has STP enabled by default. The operation of STP on each spoke-SDP is governed by:
Spoke-SDP STP Administrative State
Spoke-SDP Virtual Port Number
Spoke-SDP Priority
Spoke-SDP Path Cost
Spoke-SDP Edge Port
Spoke-SDP Auto Edge
Spoke-SDP Link Type