Methods and apparatus for alleviating deadlock in a fibre...

Details Methods and apparatus for alleviating deadlock in a fibre... Methods and apparatus for alleviating deadlock in a fibre...

2008-01-29

2008-01-29

Patel, Ajit (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

C370S236000

Reexamination Certificate

active

07324441

ABSTRACT:
Methods and apparatus are provided for alleviating deadlock and controlling congestion in a network such as a fibre channel network. Techniques are provided for detecting stalled frames at a fibre channel switch. Reserve credits are released when stalled frames are detected. In some instances, reserve credits are released after a predetermined period of time. Reserve credits allow transmission to effectively reduce deadlock and congestion. Reserve credits are particularly effective in reducing deadlock resulting from transient loops in a fibre channel network.

REFERENCES:
patent: 6570853 (2003-05-01), Johnson et al.
patent: 7085846 (2006-08-01), Jenne et al.
patent: 2003/0115355 (2003-06-01), Cometto et al.
patent: 2004/0076116 (2004-04-01), Hefty et al.
patent: 2004/0153566 (2004-08-01), Lalsangi et al.
patent: 2005/0141424 (2005-06-01), Lim et al.
patent: 2005/0220025 (2005-10-01), Noguchi
patent: 2006/0039366 (2006-02-01), Ghosh et al.
patent: 2006/0072587 (2006-04-01), Ramaswamy et al.
Cherkasova et al.;Simulation Study of Fibre Channel Fabrics with Particular Emphasis on 64-Node Clusters; Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, CA 94303; pp. 1-34.
Cherkasova et al.;Fibre Channel Fabrics: Evaluation and Design; Hewlett-Packard Laboratories, 1501 Page Mill Road, Palo Alto, CA 94303.
Karol et al.;Prevention of Deadlocks and Livelocks in Lossless, Backpressured Packet Networks; Lucent Technologies.

Affiliated with

Also associated with

Rating

Methods and apparatus for alleviating deadlock in a fibre... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for alleviating deadlock in a fibre..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for alleviating deadlock in a fibre... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2758409