Calix Limited

Gregg C Heikkinnen

Christopher Thomas Bernard

Mark Richard Biegert

Charles Eddleston

Curtis Lee Kruse

Techniques are described for identifying a rogue network interface device whose laser is not under control of a controller of the network interface device. The techniques identify the rogue network interface device based on reception of a predefined data pattern in a timeslot that is not reserved for any of the network interface devices without needing to disable upstream data transmission from the network interface devices during their assigned timeslots. The techniques also relate to a network interface device determining whether the network interface device is transmitting optical signals at a wavelength different than the wavelength that the OLT to which the network interface device is associated receives.

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Rogers, MN, United States of America

Gregg C Heikkinnen