Description  Claims  Drawing  Cited references 

WO2012059138A1   [0005] 
WO2010072251A1   [0006] 
WO2014048137A1   [0007] 

A packet based method for passive performance monitoring   [0008] 
Coloring based IP Flow Performance Measurement Framework   [0009] 
Packet Loss and Delay Measurement for MPLS Networks   [0010] 
OAM functions and mechanisms for Ethernet based networks   [0011]