Method and system for keeping a fibre channel arbitrated loop open during frame gaps
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United States of America Patent
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Sep 2, 2008
Issued Date -
N/A
app pub date -
Jul 20, 2004
filing date -
Jul 21, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method and system for keeping an arbitrated loop open during a frame gap using a fiber channel switch element is provided. The switch element includes a port control module having a receive and transmit segment, wherein the transmit segment activates a timer whose value determines a duration during which the arbitrated loop remains open; determines if a last frame from a sequence of frames from a source port has been transmitted; modifies the timer value if a higher priority frame for transmission is unavailable; and keeps the arbitrated loop open until the timer reaches a certain value. If a higher priority frame is available for transmission before the timer value is modified then the higher priority frame is transmitted and the timer value is re-initialized.
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