DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies

Mon May 28 21:12:25 UTC 2012

Q
------Message d'origine------
De : Randy Bush
À : Anurag Bhatia
Cc : NANOG Mailing List
Objet : Re: DNS anycasting - multiple DNS servers on same subnet Vs registrar/registry policies
Envoyé : 28 mai, 2012 17:03

> I am building redundancy within that setup. I mean it will be software
> based BGP so if hardware if fried up, it will break BGP session and pull
> off routes anyway and for cases like DNS server (software) failure, I will
> monitor it via simple bash script which can turn bgp daemon down. So once
> it is off, routing tables should take it to different node.

i have a tee shirt which says

   All Devices Break
   Two Devices Will Break at Once
   Global BGP Never Converges

randy, a co-author of 2182


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