H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04B 10/20 (2006.01) H04L 12/40 (2006.01) H04L 12/413 (2006.01) H04L 12/46 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 2256014
A method and apparatus for routing data packets via a synchronous optical (SONET) network from devices connected to a local area network to devices connected to other local area networks. At each transport node in the SONET network the data packets are unloaded from SONET payloads and requeued for transmission on an output path. This allows for easy resolution of contention between devices transmitting at the same time and avoids pre-assigning SONET channels. Source and destination address information from the data packets can be used to route the data packets through the SONET network. A time-to-live indicator can be used to find the shortest path to a destination address in a SONET ring network or any bi-directional ring network.
Brule John
Ellis Donald R.
Hayward Kenneth G.
To Michael C.
Borden Ladner Gervais Llp
Nortel Networks Limited
Northern Telecom Limited
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