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RouteFlapping

A flapping router is a router that transmits routing updates that first advertises a destination network via one route, then a different route. This behavior is called route flapping.

It is caused by conditions such as hardware, software and configuration errors, as well as unreliable connections -- like our dodgy wireless links, which drop out intermittantly.

Route flapping is bad, because it increases latency and processor usage on our routing machines -- often a packet in transit will be held at a router while it recalculates which route it should take.

Efforts have been made to allieviate this problem in BGP, you can find more information at FlapDampening.


Version 1 (current) modified Tue, 03 Jul 2007 23:12:19 +1000 by gummAY
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