Patent ID: 7486614

Claim:
A data transmission apparatus for implementing multiple service flow (MSF) in a multiple service ring (MSR) including a trunk pipe and at least two nodes each with at least one flow, said apparatus comprising: a flow Rx framer coupled to said flows for converting data received from said flows into data packets of a predetermined protocol; a transmission setup device for setting-up information indicating the destination node address and destination flow for packets of said predetermined protocol to be transmitted; and a Tx framer for encapsulating said information indicating the destination node address and destination flow and the packets of said predetermined protocol into frames of the multiple service ring and transmitting the frames along said trunk pipe to a downstream neighbor node along the ring, wherein said multiple service ring is a dual-ring structure consisting of a pair of unidirectional count-rotating ringlets, said multiple service flow is based on RPR, and said Rx framer is RPR Rx framer and said Tx framer is RPR Tx framer.