Apparatus and method for programmably modifying a limit of a retry counter in a network switch port in response to exerting backpressure
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
May 21, 1999
filing date -
May 21, 1999
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Abstract
A network switch having switch ports for communication of data packets with respective computer network nodes according to CSMA/CD protocol that resets a retry counter for counting data packet transmission attempts within any one of the respective switch ports if backpressure is asserted by that port. A retry limit value for the retry counter is selectively modified according to programmed information to ensure that the total number of retrys does not exceed a maximum total number of allowable retrys. Resetting the retry counter within a port after assertion of backpressure affords the port a greater probability of transmitting earlier under the CSMA/CD protocol, thus more quickly relieving congestion which may occur in the network switch. Selective modification of the retry limit value according to programmed information adds flexibility to vary the maximum total number of allowable retrys based upon current network switch conditions or the priority of a particular data packet.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GLOBALFOUNDRIES INC.
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chow, Peter | San Jose, CA | 48 | 723 |
Erimli, Bahadir | Campbell, CA | 61 | 2287 |
Fischer, Jenny Liu | Mountain View, CA | 7 | 167 |
Yu, Ching | Santa Clara, CA | 56 | 1541 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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