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Community Member

Dampening an interface

How can I dampen an EIGRP interface if interface flaps for 5 times in 15 second. ?. I searched the net for this topic, I couldn't find clear cut answer. Thanks

7 REPLIES

Re: Dampening an interface

Hi

I feel ip even dampening will be able to do justice for your requirement ..

do refer this link for more info on how to configure the same..

http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a0080457c1d.html#wp1048359

do check out for the supported interfaces ...

regds

Community Member

Re: Dampening an interface

Thanks Kumar for your input. The link didn't help much, as no one of the 4-parameters configured in interface dampen command take into consideration the numbers of interface flaps over specific period of time.

Community Member

Re: Dampening an interface

time to do some maths then, using the penalty for each flap and setting the half life and the threshold to dampen.

Community Member

Re: Dampening an interface

Appreciate your input. I couldn't find a link shows how to assign a penalty for each flap. It would be great help if you are aware of any. Thank you

Re: Dampening an interface

Hi,

the penalty for a flap is 1000 and can not be configured. In fact the interface dampening is very similar to route flap dampening in BGP. Have a look at document RIPE-229 for the latter to get also some hints on how to "do the maths".

Regards

Martin

Community Member

Re: Dampening an interface

Thanks Martin. Your answer is what I was looking for. Thank you

Community Member

Re: Dampening an interface

Hello,

Under which item did you find the "how to do the maths" ?

Thanks,

Luis

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