Accommodation frame and transmission device of different...

Details Accommodation frame and transmission device of different... Accommodation frame and transmission device of different...

H - Electricity

04

J

H04J 3/02 (2006.01) H04L 12/02 (2006.01) H04Q 11/04 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2325910

A frame 400 is constituted of an overhead 410 and a payload 420. The overhead 410 is constituted of a data length identifier 430 indicating a frame or a payload length; a flow identifier 440 indicating an attribute of the frame 400; and a frame header overhead error check (FHEC) 450 storing a result obtained by converting bytes from the head to a specified M-th byte of the frame 400 into a numerical value of n bytes according to a certain coding method. As for a length of the payload 420, up to a maximum length computed from the data length identifier 430 of the overhead can be stored. In the payload 420, traffics for the layers 1 to 3 can be accommodated. Even if the ATM cell and the frame 400 are multiplexed, since coding methods for the FHEC 450 and the HEC are different, the ATM cell and the frame 400 can be extracted individually.

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