Patent ID: 9264139
Filing Date: 2016-02-16
CPC Classification: H04B,H04J,H04Q

Claim Text:
1. An Optical Transport Network (OTN) method, comprising: transmitting an Optical channel Data Unit (ODU) signal between a pair of OTN switching nodes mapped within an overclocked OTN signal, wherein the ODU signal is an ODUn with n=2, 3, or 4 and the overclocked OTN signal is a High Order (HO) overclocked variant of the ODUn; performing one or more of control plane signaling and exchange of Operations, Administration, Maintenance, and Provisioning (OAM&P) data between the pair of OTN switching nodes using overhead associated with the overclocked OTN signal, wherein the one or more of the control plane signaling and the OAM&P data is for the ODU signal; and responsive to a clock transient, framing events, or other disruptions on the ODU signal affecting the control plane signaling, maintaining the one or more of control plane signaling and OAM&P data for the ODU signal through the overhead associated with the overclocked OTN signal in a double mapping configuration, wherein the double mapping configuration includes the ODU signal mapped in the overclocked OTN signal such that the overclocked OTN signal carries the one or more of the control plane signaling and the OAM&P data for the ODU signal.