Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Norman W. Finn0
Date of Patent
July 19, 2011
0Patent Application Number
108426180
Date Filed
May 10, 2004
0Patent Primary Examiner
Patent abstract
A system and method monitors links in a computer network and rapidly detects failures of such links. Network entities disposed at opposite ends of a link are provided with failure detection engines that signal their presence to each other. Thereafter, each failure detection engine ensures that its entity transmits a continuous stream to the other entity by sending either data frames or newly defined failure detection packets. If an interruption in this continuous stream is detected, then the failure detection engine concludes that the link has failed. In response, the failure detection engine preferably notifies other applications or protocols of the failure, and causes the link to be shut-down.
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