Having your customers get proper and valid data, seems more 
important than the query time.  Queries to the Root servers
should be a "rareish" thing as your local servers should be
caching those results.

So if it takes me 100ms to get a reply from a root, I won't
be asking it again for that data for quite some time, eg
hours, days, etc.

john brown
le geek


> 
> Having almost all of your customers' DNS lookups take 10 ms 
> instead of 100 or 200 ms may also be of some value.
> 
> Definitely seems interesting to me, even though issues with 
> keeping data 
> up-to-date are of critical importance here.
> 
> -- 
> Pekka Savola                 "Tell me of difficulties surmounted,
> Netcore Oy                   not those you stumble over and fall"
> Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords
> 
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