Communication protocol for passive optical network topologies

Details Communication protocol for passive optical network topologies Communication protocol for passive optical network topologies

2007-11-27

2007-11-27

To, Doris H. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via time channels

Reexamination Certificate

active

10091141

ABSTRACT:
A protocol for communicating data on a passive optical network conforming to the Ethernet standard provides processes for remote network node discovery and synchronization. Uplink packet transmissions to a central controller, such as an optical line terminal, are scheduled by the central controller. Downlink packets from the central controller to a remote network node, such as an optical network unit, are encrypted to preserve privacy, and the key used for encryption is changed periodically. The protocol further provides processes for detecting the loss of physical or logical connection between the central controller and the remote network nodes.

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