The l2 tracetree command is a proprietary command that allows a user to trigger a multicast LTM message by specifying the B-VLAN and I-SID. This command allows the user to view a multicast tree on the SPBM B-VLAN from the source node to the destination nodes for a particular I-SID.
Note
The VSP 4450 Series does not support the l2 tracetree command on C-VLANs because no multicast tree exists on C-VLANs.