Patent ID: 9680564
Date: 2017-06-13
CPC Classifications: H04B,H04J,H04L

Claim:
1. A method comprising: configuring an optical network for a required bandwidth, the optical network including: identifying, by a network management device, a failure in the optical network as one of a transponder card failure, a fiber failure, or a node failure; automatically provisioning, by the network management device and when the failure is a transponder card failure, one of the floating spare cards in one of the optical nodes with the failed transponder card to service a particular light path, of the plurality of light paths, associated with the failed transponder card, and routing the particular light path associated with the failed transponder card over the optical fibers to the one of the floating spare cards; re-routing, by the network management device and when the failure is a fiber failure, traffic on first failed light paths, of the plurality of light paths, using the active cards and the particular wavelengths of the first failed light paths, around the fiber failure while maintaining the required bandwidth; and automatically provisioning, by the network management device and when the failure is a core node failure, particular cards, of the active cards in a non-failing core node, that were previously used for light paths to a failed core node, wherein the particular cards are re-provisioned for light paths to other active cards in the aggregation nodes, and wherein the other active cards are re-provisioned with different wavelengths than were used for the light paths to the failed core node.