Patent ID: 8160453

Claim:
A method of protection switching between first and second transceivers, the method comprising steps of: detecting, at the second transceiver, a signal failure of a first signal transmitted from the first transceiver on a first optical path, the first signal having a first compensation function for the first optical path; and in response to said signal failure: switching reception of said first signal by said second transceiver from said first optical path to a second optical path between said first and second transceivers; and signaling to the first transceiver to change the compensation function for the first signal from the first compensation function for the first optical path to a second compensation function for the second optical path; said first and second compensation functions depending on optical characteristics of the first and second optical paths, the first and second compensation functions being set by an electrical domain compensation module operationally connected to a transmitter included in the first transceiver.