A.GFC-4 bits of generic flow control B.Forward-explicit congestion notification(FECN) C.VCI-16 bits of virtual channel identifier D.CLP-1 bit of congestion loss E.HEC-8 bit of header error control F.ATM Discard Eligibility(DE)bit
A.lowest cost B.highest bandwidth C.lowest hop-count D.path attributes E.lowest delay
A.It prevents message looping,Session Advertisement(SA)messages must be RPF checked B.RPF check should be done against the route to the Rendez-vous Point of the corresponding PIM-SM domain,which originated the SA C.RPF checking Session Advertisement(SA)messages will cause message looping D.RPF check should be done against the route to the source S of the corresponding PIM-SM domain