Traffic control device in private ATM network
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United States of America Patent
Stats
-
Apr 7, 1998
Grant Date -
N/A
app pub date -
Sep 11, 1996
filing date -
Mar 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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