North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Looking for geo-directional DNS service
On Jan 15, 2008, at 12:00 PM, Bill Woodcock wrote: On Tue, 15 Jan 2008, Hank Nussbacher wrote:The Ultradns (now Neustar) Directional DNS service is based on statically defined IP responses at each of their 14 sites so there is no proximity checking done. Except Hank is asking for true topological distance (latency / throughput / packetloss). Anycast gives you BGP distance, not topological distance. Say I'm in Ashburn and peer directly with someone in Korea where he has a node (1 AS hop), but I get to his node in Ashburn through my transit provider (2 AS hops), guess which node anycast will pick? -- TTFN, patrick
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