US Patent No. 9,413,625

AUTOMATIC CAPTURE OF THE NETWORK DELAY COMPONENTS


Patent No. 9,413,625
Issue Date August 09, 2016
Title Automatic Capture Of The Network Delay Components
Inventorship Michel Le Pallec, Nozay (FR)
Dinh Thai Bui, Nozay (FR)
Assignee Alcatel Lucent, Boulogne-Billancourt (FR)

Claim of US Patent No. 9,413,625

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
clock;

storing the measured residence time; and
retrieving the stored residence time using a network protocol.