Patent ID: 9608719
Date: 2017-03-28
CPC Classifications: H04B,H04Q

Claim:
1. A method for operating an optical network (ON) using a control plane (CP), comprising: identifying, by the CP, a failure of a client facility connecting a first network element of the ON and a client device by determining that the first network element has received an error detected (ED) signal from the client device, wherein the client facility is external to the ON; terminating, by the CP and in response to identifying the failure, an optical connection through the ON for the client device between the first network element and a second network element of the ON, wherein the first network element sends a failed optical connection (FOC) signal to the client device in response to terminating the optical connection; executing, by the CP, a first reestablishment of the optical connection through the ON for the client device after a first sleep interval, wherein the FOC signal is cleared in response to executing the first reestablishment of the optical connection; terminating, by the CP, the reestablished optical connection in response to the ED signal not clearing after the FOC signal is cleared indicating that the failure is still present; and executing, by the CP, a second reestablishment of the optical connection through the ON for the client device after the failure of the client facility is resolved.