| US 7,477,844 B2 | ||
| Method and system for utilizing virtual local access network addressing in optical networks | ||
| Ashwin Anil Gumaste, Dallas, Tex. (US); Raghu Ramireddy Valisammagari, Murphy, Tex. (US); and Susumu Kinoshita, Plano, Tex. (US) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Dec. 17, 2004, as Appl. No. 11/15,228. | ||
| Prior Publication US 2006/0133811 A1, Jun. 22, 2006 | ||
| Int. Cl. H04B 10/20 (2006.01) | ||
| U.S. Cl. 398—59 | 20 Claims |
| 1. An optical network, comprising:
an optical ring;
a plurality of local nodes coupled to the optical ring and configured to add and drop traffic to and from the optical ring
in one or more wavelengths, each local node operable to:
receive traffic from a local client;
associate a transmitter tag with the traffic, the transmitter tag identifying a virtual network with which the local client
is associated;
transmit the traffic on the optical ring; and
a data center node coupled to the optical ring and operable to:
receive traffic transmitted by one of the local nodes;
determine a receiver tag for the traffic, based on the transmitter tag associated with the traffic and the local node that
transmitted the traffic;
associate the selected receiver tag with the traffic; and
transmit the traffic on the optical ring.
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