US Patent No: 7,342,878
Number of patents in Portfolio can not be more than 2000
Input port routing circuit that performs output port filtering
Stats
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Mar 11, 2008
Issued date -
Dec 23, 2002
filing date -
10/328,087
serial no -
In Force
status
Importance
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Abstract
The filtering operations normally performed at the output port side of an Infiniband (or similar protocol) routing switch are performed in parallel at the input side to prevent data packets from being placed on a queue from which they would ordinarily ultimately be discarded, thus removing "bad" packets that would normally have a negative impact on the bandwidth of the switch. Bad data packets thus do not consume space in a central queue nor bandwidth in a crossbar switch.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,473,598 Routing method and apparatus for switching between routing and conversion tables based on selection information included in cells to be routed | 23 | 1991 | |
| 6,967,924 Packet switching device and cell transfer control method | 12 | 2000 | |
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| 6,763,394 Virtual egress packet classification at ingress | 5 | 2001 | |
| 7,107,352 Virtual egress packet classification at ingress | 4 | 2004 | |
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| 6,252,880 Apparatus and method for selectively supplying a data packet to a selected network node in a buffered distributor | 6 | 1997 | |
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| 6,216,167 Efficient path based forwarding and multicast forwarding | 78 | 1998 | |
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| 4,760,570 N-by-N "knockout" switch for a high-performance packet switching system | 51 | 1987 | |
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| 5,764,641 Early and integrated tail packet discard system | 102 | 1995 | |
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| 6,898,752 Apparatus and methods for combinational error detection in an InfiniBand switch | 14 | 2002 | |
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| 5,909,686 Hardware-assisted central processing unit access to a forwarding database | 300 | 1997 | |
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| 5,197,064 Distributed modular packet switch employing recursive partitioning | 34 | 1990 | |
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| 6,212,184 Fast scaleable methods and devices for layer four switching | 105 | 1998 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Sep 11, 2015 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 11, 2019 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |