[dns-operations] Too Open (Was: OpenDNS makes your Internet work better
john at sackheads.org
Fri Jul 14 11:57:31 UTC 2006
I think the thing that's really breaking your understanding is that
you both have the assumption that every anycast pod has to announce
the all the service addresses.
If you think of every anycast service address as a seperate cloud,
does that help?
UltraDNS muddies the water somewhat by having different overlaps
points between different clouds, which may or may not lead to the
failure mode you're both describing. If it does, that is a failure
of UltraDNS's deployment, NOT a failure of anycast.
All of the root servers could be anycasted and as long as they don't
all show up at the same NAPs, you still have the redundancy you see
today with a mix.
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