Traffic control device in private ATM network

Details Traffic control device in private ATM network Traffic control device in private ATM network

1996-09-11

1998-04-07

Chin, Wellington

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

370395, H04J 314, H04L 1256

Patent

active

057373159

ABSTRACT:
If an illegal cell number is detected three times continuously for a monitor section in a connection, then tag information including class information indicating the lowest quality class is added to a cell in the connection. If a normal cell number is detected four times continuously for the monitor section with the quality class of the cell lowered for the connection, then the quality class of the cell in the connection is restored to its original class. If an illegal cell number is detected n times continuously for the monitor section with the quality class of the cell lowered in the connection, then the tag information including valid/invalid information indicating an invalid state is added to the cell in the connection. As a result, the cell is stopped from being transmitted to a cell switch. If a normal cell number is detected m times continuously with the transmission of cells stopped, then the cell is released from the stop to the transmission of cells to the cell switch.

REFERENCES:
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patent: 5119367 (1992-06-01), Kawakatsu et al.
patent: 5224091 (1993-06-01), Brandt
patent: 5253247 (1993-10-01), Hirose et al.
patent: 5274641 (1993-12-01), Shobatake et al.
patent: 5287347 (1994-02-01), Spanke
patent: 5317563 (1994-05-01), Oouchi et al.
patent: 5335222 (1994-08-01), Kamoi et al.
patent: 5555264 (1996-09-01), Sallberg et al.
patent: 5581545 (1996-12-01), Moritomo

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