Method and router in a packet network with priority classes
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United States of America Patent
Stats
-
Jun 18, 2002
Grant Date -
N/A
app pub date -
Jun 8, 1998
filing date -
Oct 8, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and an equipment for packet prioritization when routing data packets is presented. Several priority classes are defined for the packets, and a first threshold value and a second, higher, threshold value is defined for each prioity class. In association with each packet, the oldest packet of a given prioritiy class is selected, and if the packet is older than the second threshold value of the priority class concerned, the packet is discarded, and the next priority class is selected. If the packet is older than the first threshold value of the priority class concerned, at least one packet of this priority class is transmitted until the oldest packet in the priority class is younger than the first threshold value of the priority class concerned, whereupon the next priority class is selected.
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