https://gunkies.org/index.php?action=history&feed=atom&title=Routing_loop 2026-05-17T22:34:26Z Revision history for this page on the wiki MediaWiki 1.30.1 https://gunkies.org/w/index.php?title=Routing_loop&diff=18839&oldid=prev 2018-11-17T16:01:19Z

<p>Pretty good coverage</p> <p><b>New page</b></p><div>A '''routing loop''' occurs when a distributed [[path selection]] mechanism creates a (usually temporary) loop in the path to a particular destination; i.e. the [[routing table]] entries in a group of [[switching node]]s, with respect to given destination, form a closed loop. Any traffic for that destination that enters that loop never leaves - just loops endlessly until the loop is broken.<br /> <br /> Routing loops generally form as a result of out-dated data being used by some of the switching nodes in the loop, when doing their path selection computations - e.g. after another switching node has failed, and paths which previously went through it are being re-computed. They generally do not last long, and disappear as updated data arrives.<br /> <br /> Even so, they are a serious problem while they are there, and a number of mechanisms (such as [[Path Vector]] [[routing protocol]]s) have been devised to try and avoid their formation.<br /> <br /> [[Category: Networking]]</div>

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