US Patent No: 6,868,061
Number of patents in Portfolio can not be more than 2000
System and method for pre-filtering low priority packets at network nodes in a network service class utilizing a priority-based quality of service
Stats
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Mar 15, 2005
Issued date -
Dec 10, 1998
filing date -
09/209,183
serial no -
In Force
status
Importance
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Abstract
A system and method for reducing network node congestion by filtering out comparatively low priority packets prior to execution of other node functions, such as routing and switching, in packet-based network transmissions. The volume of packets is reduced by intercepting the information packets prior to their input to the network node. A portion of the intercepted packets are filtered out based on parameters corresponding to a probable packet acceptability at the network node. The remaining portion of the intercepted packets are forwarded to the network node for processing by the network packet functions.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,313,454 Congestion control for cell networks | 594 | 1992 | |
| 5,790,522 Method and system for performing traffic congestion control in a data communication network | 111 | 1995 | |
| 5,838,922 Back pressure access control system for a shared buffer with allocation threshold for each traffic class | 32 | 1996 | |
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| 5,557,608 Method and apparatus for transmission of high priority traffic on low speed communication links | 59 | 1995 | |
| 5,600,641 Voice circuit emulation system in a packet switching network | 37 | 1995 | |
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| 5,541,852 Device, method and system for variable bit-rate packet video communications | 111 | 1994 | |
| 5,812,527 Simplified calculation of cell transmission rates in a cell based netwook | 103 | 1996 | |
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| 6,041,039 System and method for determining network bandwidth availability using priority level feedback | 46 | 1997 | |
| 6,081,843 System using simulation cell and simulation buffer for regulating cell transfer rate according to occupancy level of the simulation buffer | 30 | 1997 | |
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| 5,708,660 Circuit arrangement for accepting and forwarding message cells with an ATM communication equipment | 13 | 1996 | |
| 5,748,615 Method and circuit arrangement for forwarding message cells transmitted via an ATM communication equipment to a serving trunk | 20 | 1996 | |
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| 2001/0022,786 Receive processing for dedicated bandwidth data communication switch backplane | 22 | 2001 | |
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| 5,541,913 Policing device | 20 | 1995 | |
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| 5,828,653 Quality of service priority subclasses | 193 | 1996 | |
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| 5,287,347 Arrangement for bounding jitter in a priority-based switching system | 36 | 1992 | |
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| 5,805,585 Method for providing high speed packet data services for a wireless system | 65 | 1996 | |
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| 5,553,061 Packet processor having service priority and loss priority features | 35 | 1994 | |
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| 5,818,818 Communication service quality control system | 53 | 1996 | |
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| 5,768,521 General purpose metering mechanism for distribution of electronic information | 263 | 1996 | |
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| 5,153,877 Packet network with communication resource allocation and call set up control of higher quality of service | 63 | 1990 | |
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| 6,052,734 Method and apparatus for dynamic data rate control over a packet-switched network | 28 | 1998 | |
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| 4,953,157 Programmable data packet buffer prioritization arrangement | 90 | 1989 | |
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| 6,222,841 Data transmission system and method | 57 | 1997 | |
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| 5,426,640 Rate-based adaptive congestion control system and method for integrated packet networks | 87 | 1992 | |
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| 5,410,585 Subscriber line test system | 15 | 1992 | |
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| 5,757,784 Usage-based billing system for full mesh multimedia satellite network | 100 | 1996 | |
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| 5,768,627 External parallel-port device using a timer to measure and adjust data transfer rate | 16 | 1995 | |
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| 5,784,358 Broadband switching network with automatic bandwidth allocation in response to data cell detection | 115 | 1996 | |
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| 6,147,970 Quality of service management for aggregated flows in a network system | 44 | 1997 | |
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| 5,638,359 Method for congestion management in a frame relay network and a node in a frame relay network | 58 | 1995 | |
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| 5,805,577 Erica: explicit rate indication for congestion avoidance in ATM networks | 66 | 1996 | |
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 | Sep 15, 2016 |
| 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 |