[dns-operations] dns-operations at lists.dns-oarc.net

bert hubert bert.hubert at netherlabs.nl
Mon May 7 13:42:37 UTC 2012

On Mon, May 07, 2012 at 09:13:50AM -0400, Stephane Handfield wrote:
> Hello DNS operators,
> I want to know what rules you follow in terms of capacity planning for your
> DNS. I am mainly interested in the best planning practice for caching  DNS.
> Definitly our rules need to reflect a lots of our own reality, in term of
> agility of deployment, risks, etc. But I'm really interested to know if
> exists any rule of thumb which mostly apply to any situations.

Here's one. One resolving request per 'broadband residential internet'
subscriber per ten seconds.  This is the 'smooth peak nuber'.

Holds up quite well, although this number is a bit old. It might be eeking
towards one request per five seconds now.

Adjust width of thumb accordingly!


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