EP0924901A3

Gigabit ethernet interface to synchronous network (Sonet) ring

Abstract

A method and apparatus for routing data packets via a synchronous optical (SONET) network (102,104,106,108) from devices (118,118B) connected to a local area network (116,117,120,126) to devices (118,118B) connected to other local area networks (116,117,120,126). At each transport node (102,104,106,108) 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.

EP0924901A3, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 22 December 2018, 7.8 years ago.

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