Method and system for priority enforcement with flow control
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 28, 2006
Grant Date -
Oct 9, 2003
app pub date -
Apr 8, 2002
filing date -
Apr 8, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and system for controlling a plurality of pipes in a computer network, including at least one processor for a switch, the at least one processor having a queue, the plurality of pipes utilizing the queue for transmitting traffic through the switch, wherein each pipe is assigned a priority ranking class, each class has a unique priority rank with respect to each of the other classes, the ranks ranging from a highest priority rank to a lowest priority rank. A transmission probability is calculated for each pipe responsive to its priority rank. If excess bandwidth exists for the queue, the transmission probability of each pipe is linearly increased. Alternatively, if excess bandwidth does not exist, the transmission probability for each pipe is exponentially decreased. Packets are transferred from a pipe to the queue responsive to the pipe transmission probability and priority rank.
First Claim
Family
International Classification(s)
Cited Art Landscape
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6188670 Method and system in a data processing system for dynamically controlling transmission of data over a network for end-to-end device flow control | 28 | 1997 | |
| * 6769033 Network processor processing complex and methods | 26 | 1999 | |
| * 6657960 Method and system for providing differentiated services in computer networks | 21 | 1999 | |
| * 6870811 Quality of service functions implemented in input interface circuit interface devices in computer network hardware | 13 | 2001 | |
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| 5983278 Low-loss, fair bandwidth allocation flow control in a packet switch | 155 | 1996 | |
| 6212582 Method for multi-priority, multicast flow control in a packet switch | 46 | 1997 | |
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| * 6816494 Method and apparatus for distributed fairness algorithm for dynamic bandwidth allocation on a ring | 15 | 2000 | |
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| 5555264 Methods and devices for prioritizing in handling buffers in packet networks | 60 | 1994 | |
| 6212162 Arrangement and method relating to packet flow control | 38 | 1998 | |
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| 5859837 Flow control method and apparatus for ethernet packet switched hub | 51 | 1995 | |
| * 6725270 Apparatus and method for programmably modifying a limit of a retry counter in a network switch port in response to exerting backpressure | 21 | 1999 | |
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| 5354848 Chemically modified allergens and process for the preparation thereof | 6 | 1990 | |
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| 4933933 Torus routing chip | 134 | 1986 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 28, 2018 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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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