Bit Position,MPLS OAM Function Flag,Description,Reference
0,C,Continuity Check (CC),[RFC7759]
1,V,Connectivity Verification (CV),[RFC7759]
2,F,Fault Management Signal (FMS),[RFC7759]
3,L,Performance Monitoring/Loss (PM/Loss),[RFC7759]
4,D,Performance Monitoring/Delay (PM/Delay),[RFC7759]
5,T,Throughput Measurement,[RFC7759]
6-30,,Unassigned (Must be zero),
31,,Reserved,[RFC7759]