Apparatus and methods for predicting and managing congestion in a network
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United States of America Patent
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May 12, 1998
Grant Date -
N/A
app pub date -
Dec 4, 1995
filing date -
Dec 4, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method (100) executed by congestion controller (26) in each node (20, 30, 40) of a network (10) determines whether congestion is going to occur or is occurring in a particular node (20, 30, 40). If congestion is imminent or occurring, a congestion status bit is set. Each time a data packet is received and the congestion indicator bit is set, congestion controller (26) increments a congestion counter. Each time a predetermined time interval expires, congestion controller (26) decrements the congestion counter. By using the congestion counter as an index into a credit table, a credit value is determined by destination node (31) that represents how many data packets are permitted to be sent from source node (30) to destination node (31). The credit value is sent to the source node via a message.
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