Use the following commands to troubleshoot an SPB-managed B-VPLS service:
tools perform service id svc-id spb run-manual-spf
tools dump service id svc-id spb
tools dump service id svc-id spb default-multicast-list
tools dump service id svc-id spb fid fid default-multicast-list
tools dump service id svc-id spb fid fid forwarding-path destination isis-system-id forwarding-tree {unicast | multicast}