1. A method for monitoring a residence time across a plurality of nodes of a communication network including a transparent
clock based synchronization architecture according to Precision Time Protocol release 2 (PTPV2), said method comprising:
configuring and generating a modified PTPV2 packet, the modified PTPV2 packet being used for at least measuring the residence
time but is not used for a synchronization purpose;
measuring the residence time of the modified PTPV2 packet across a at least one node of the plurality of nodes, by a transparent
storing the measured residence time; and
retrieving the stored residence time using a network protocol.