公开(公告)号：US09762340B1

公开(公告)日：2017-09-12

申请号：US13363684

申请日：2012-02-01

Applicant: Mark J. Derrico

Inventor： Mark J. Derrico

IPC: H04B17/02 ,  H04J3/02 ,  H04J3/06

CPC classification number: H04J3/06 ,  H04J3/02 ,  H04J3/0641 ,  H04J3/0647 ,  H04J3/0658 ,  H04J3/14

Abstract: A synchronization timing loop detection method includes monitoring an active timing reference for a flapping event at a network element, incrementing a counter for each detected flapping event, determining if the counter exceeds a threshold over a predetermined time period, and, if the counter exceeds the threshold, declaring a possible timing loop on the active timing reference. The flapping event can include the active timing reference being active followed by inactive due to synchronization status messaging and one of a logical and physical timing loop on the active timing reference. A synchronization timing loop detection system and a network element for synchronization timing loop detection for the synchronization timing loop detection method are also disclosed.