[dns-operations] The (very) uneven distribution of DNS root servers on the Internet

Randy Bush randy at psg.com
Wed May 16 22:45:33 UTC 2012

>> One could logically assume that if a caching server is within a
>> certain radius of a node geographically, they are likely able to
>> route to it (country boundaries/geography may change this, but I did
>> say roughly).
> This assumption is what leads folks to do what Pingdom has done.  It
> is a common mistake to assume network topology matches geo-political
> topology.  In many case, regulatory regimes, business rules,
> etc. result in the exact opposite.

my favorite is that some root server operators intentionally limit bgp
announcement scope, so it does not even follow net topology, let alone


More information about the dns-operations mailing list