On 10/13/2012 5:41 AM, [email protected] wrote: > Am Sa, 13.10.12 um 16:31:22 Uhr > schrieb pangj <[email protected]>: > >> Hello, >> >> My question is, if we want to deploy a global DNS service, how to get >> the anycast networks? >> We are a small company in Asia, don't have our own ASN. >> So the only way is to rent a anycast network from an ISP or IDC? > > Why do yo think you need an anycasted DNS infrastructure in the first > place? > > An anycasted DNS only helps, if your 'other infrastructure', e.g. your > webservers, are also setup 'around the world' to keep the distance low.
This is incorrect. The technologies available to serve DNS for a domain (unicast, anycast, pigeoncast, etc.) have their own advantages and disadvantages. The advantages and disadvantages of different methods of serving DNS are independent of 'other infrastructure' within a domain. Anycast addressing/routing for DNS does not "only help" if you have widely distributed web servers. Most root server operators (and many TLD/ccTLD operators) use anycast addressing/routing for DNS because anycasted DNS "helps" them despite the fact that they don't run any 'other infratructure' in a distributed fashion under those domains. This isn't an accident. > What problems do you think anycast will solve? > > > cheers, > Florian > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
