Return two locations or low TTL [was: DNS caches that support partitioning ?]

Dobbins, Roland rdobbins at arbor.net
Mon Aug 20 05:49:44 CDT 2012


On Aug 20, 2012, at 5:24 PM, Patrick W. Gilmore wrote:

> But I do not think returning multiple A records for multiple datacenters is as useful as lowering the TTL.

Some folks do this via various GSLB mechanisms which selectively respond with different records based on the assumed relative topological distance between the  querying resolver and various server/service instantiations in different locations.

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Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>

	  Luck is the residue of opportunity and design.

		       -- John Milton




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