Flow control method and apparatus for cell-based communication networks
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United States of America Patent
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-
Nov 30, 1999
Grant Date -
N/A
app pub date -
Mar 12, 1997
filing date -
Sep 17, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flow control method is practiced in a first node in a computer network having one or more upstream nodes, each of which can provide data cells to the first node over a connection. Cells are transmitted over a connection during an established transmission period for that connection and at a data rate not exceeding a peak data rate. To determine whether a buffer is sufficient during a given time period starting at the current time, the potential buffer requirements during that time period are established as a function of the current buffer occupancy and the maximum number of cells which may be received during the given time period. If the potential buffer requirements exceed a predetermined buffer threshold, one or more stop signals is sent to upstream sources to limit the number of cells to be provided to the first node.
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