Asynchronous transfer mode exchange system and priority control

Details Asynchronous transfer mode exchange system and priority control Asynchronous transfer mode exchange system and priority control

1996-10-30

2000-08-15

Pham, Chi H.

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

370398, 370429, H04L 1256

Patent

active

061046981

ABSTRACT:
A call reception control circuit 1 sets each guaranteed band width required for assuring communication quality of the respective band width demand classes in the corresponding N counter Nc, Ntv and Nv at a certain time interval Ts. The call reception control circuit 1 also sets values defined by the ratio of the W counter Wabr and Wubr of the respective best effort class to use the remained band width. The value 1 is subtracted from each value of the N counter Nc, Ntv and Nv and W counter Wabr and Wubr at every output of the cell from the corresponding class. A priority control process circuit 2 outputs cells to an output channel 3 according to priority levels giving a priority to the band width demand class having the value of the N counter not set to 0 over the band width demand class and the best effort classes having the value of the N counter set to 0.

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