Fibre channel switch
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United States of America Patent
Stats
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Oct 20, 2009
Grant Date -
Sep 14, 2006
app pub date -
May 8, 2006
filing date -
Jun 13, 2001
priority date (Note) -
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Abstract
A Fiber Channel switch is presented that tracks the congestion status of destination ports in an XOFF mask at each input. A mapping is maintained between virtual channels on an ISL and the destination ports to allow changes in the XOFF mask to trigger a primitive to an upstream port that provides virtual channel flow control. The XOFF mask is also used to avoid sending frames to a congested port. Instead, these frames are stored on a single deferred queue and later processed in a manner designed to maintain frame ordering. A routing system is provided that applies multiple routing rules in parallel to perform line speed routing. The preferred switch fabric is cell based, with techniques used to manage path maintenance for variable length frames and to adapt to varying transmission rates in the system. Finally, the switch allows data and microprocessor communication to share the same crossbar network.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- BROCADE COMMUNICATIONS SYSTEMS LLC;MCDATA SERVICES CORPORATION
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cantwell, Larry | Morrestown , US | 13 | 304 |
Carlsen, Scott | Mount Laurel , US | 3 | 296 |
Gonzalez, Henry Q | Belle Mead , US | 1 | 5 |
Koellner, Gregory L | Medford , US | 5 | 341 |
Nallur, Govindaswamy | Maple Shade , US | 3 | 213 |
Paul, Harry V | Haddonfield , US | 16 | 559 |
Pearson, Jereld W | Somerdale , US | 4 | 217 |
Schmidt, Steven G | Westampton , US | 13 | 442 |
Tometta, Anthony G | King Of Prussia , US | 1 | 67 |
Workman, Jason | Bensalem , US | 7 | 357 |
Wright, James C | Sewell , US | 17 | 470 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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