Patent ID: 9110798
Filing Date: 2015-08-18
Classification: G06F,H04L

Abstract:
1. A method of preventing holding-off a protection switching for a plurality of alarms, in a nested protection environment, the method comprising steps of: identifying a plurality of defects at a client layer; configuring a hold-off time for a plurality of defects; marking the plurality of alarms of a pre-defined pattern; identifying the plurality of marked alarms as a separate squelch signal; filtering the plurality of defects and the squelch signal; categorizing the plurality of defects and the squelch signal into at least one of a signal fail (SF) alarm and a signal degrade (SD) alarm; differentiating the plurality of defects from the plurality of marked alarms using the separate squelch signal; disabling the hold-off operation for the plurality of marked alarms on receiving a squelch operation indication; and providing at least one of a plurality of marked alarms as a signal fail and signal degrade input for switching a traffic flow to a failure free path.