Method and apparatus for internetworking buffer management
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United States of America Patent
Stats
-
Aug 22, 2000
Issued Date -
N/A
app pub date -
Feb 17, 1998
filing date -
Jul 12, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for receiving and transmitting network frames via an internetworking device, in which a first portion of a total number of buffers is allocated among port-dedicated buffer pools, and a second portion is placed in a common pool accessible by any of the network ports. A frame is received at a first port, and a list of buffers accessible only by that port is referenced to identify buffers not already in use. A second list of buffers in the common pool is referenced to identify unused buffers for use if insufficient unused buffer space is available in the port-dedicated buffer pool. Frame data is then stored in the identified buffer(s). Upon retransmission, the buffer(s) used to store the. transmitted frame is released to the port-dedicated and/or common buffer pool(s).
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