nanog mailing list archives

BGP route flapping


From: Gus Crichton <Gus.Crichton () digicelgroup com>
Date: Wed, 14 May 2014 22:14:01 +0000

Hi there,

Hope you networking experts can shed some light on a concern I have please. I am multihoming using 2 ISPs to the 
internet, due to reasons outside my control, my primary preferred link keeps dropping a number of times a day forcing 
traffic to my backup and vice-versa when the primary comes back up.

The route calculations by the upstream tier 1s and 2s handle the route calculations but if I do this too many times 
consuming their resources, is there a penalty/blackmark on my AS? Is this monitored even by the tier1s and 2s?

Thanks.

Regards,
Gus C.

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