The advertised admin forwarding status of active/standby reflects the status of the local LAG SAP in MC-LAG application. If the SAP is not part of a MC-LAG instance, the forwarding status of active is always advertised.
When the SAP in endpoint ‟X” is part of a MC-LAG instance, a node must send T-LDP forwarding status bit of ‟SAP active/standby” over all ‟Y” endpoint spoke SDPs, except the ICB spoke-SDP, whenever this status changes. The status bit sent over the ICB is always zero (active by default).
When the SAP in endpoint ‟X” is not part of a MC-LAG instance, then the forwarding status sent over all ‟Y” endpoint spoke-SDPs should always be set to zero (active by default).