Patent attributes
An optical transceiver configured to transmit and receive optical signals. The optical transceiver includes a control module and a persistent memory. The control module is configured to identify operational information regarding the optical transceiver, and write log information representing the operational information to the persistent memory. The operation information may include statistical data about operation, or may include measured parameters. Log entries may be made periodically and/or in response to events. The log may then be evaluated to determine the conditions under which the transceiver has historically operated.