Use the following rules and syntax to configure a spoke SDP at the mirror source node.
The sdp-id must match an SDP that uses an LDP IPv6 FEC.
Configuring the egress-vc-label is optional.
no spoke-sdp sdp-id:vc-id
spoke-sdp sdp-id:vc-id [create] egress
vc-label egress-vc-label