BGP/Serial line drop

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Apr 25th, 2007
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A typical scenario 2621xm router with e1 link BGP running, How many hits would the cisco router need to have to take the BGP down or how long would the hits have to be .ie 200 ms ??


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mohammedmahmoud Wed, 04/25/2007 - 01:37
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Hi there,


If you are talking about the BGP keepalive period then it is every 60 seconds by default.


HTH,

Mohammed Mahmoud.

tbarnett Wed, 04/25/2007 - 01:39
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Hi Mohmemmed


Its not actually the BGP keepalive period, its how long would a hit on the serial link have to be for the router to take the link down

tbarnett Thu, 04/26/2007 - 01:27
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Mohammed


I think we are getting mixed up with the actual information i require.


Basically i am trying to distinguish if a local tail cct is taking hits, and they are <=50ms would a cisco router determined these as a drop , if not, what is that actual time in ms that a cisco router will recognise as a hit ?


mohammedmahmoud Thu, 04/26/2007 - 02:01
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Hi there,


Sorry for misunderstanding your question, i'll trying to figure it out for you.


BR,

Mohammed Mahmoud.

tbarnett Thu, 04/26/2007 - 02:03
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Tks Mohammed


I just need to recognise what the default value is that the interface will be declared down due to a hit

tbarnett Wed, 04/25/2007 - 02:56
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Hi i know how to actually troubleshoot serial links , its how many times a router requires to see a hit before it will take it down?

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