what is meant by flapping Cisco 2800 router

10 pts.
Tags:
Cisco 2800
Cisco Catalyst
Cisco Routers
L2 Switches
Router Flapping
Routers
WatchGuard
we have cisco 2800 series router,L3 catalyst 3750 series and watchguard (firewall) and that is connect to L2 switches. But when we connect to router flapping occurs, now we connected to firewall it works fine. please rectify this problem

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Router Flapping is when a router ‘announces’ different paths to go to the same destination. That should answer your header question.

You need to set route dampening in your setting. This will set limits to flapping and should give you more control over allowing it or not.

Start with this tutorial regarding your issue: <a href=”http://www.firstdigest.com/2008/12/cisco-how-to-improve-bgp-table-stability-with-route-dampening/”>

http://www.firstdigest.com/2008/12/cisco-how-to-improve-bgp-table-stability-with-route-dampening/

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