> On Mar 20, 2017, at 0:49, Lanlan Pan <abby...@gmail.com> wrote: > > Everyone has known that physical location and the topology of content > delivery DO NOT MATCH. > As last mail reply to Warren, my proposal can offer the SAME critical > information for authoritative server to make tailored response decision as > ECS's client subnet. > Because in database such as maxmind, ECS (client subnet) can be map into <AS > number, country, province, ISP>, which also guide network topology. > Therefore, if ECS has ANY value for optimizing content delivery on the > Internet, then EIL has. > > For example，If ECS is tell AUTH : the query is from 114.240.0.0/24. The AUTH > knows that ECS(114.240.0.0/24) is indicated (CHINA, BEIJING, UNICOM), which > is not only geolocation, but also contains network topology information. Then > AUTH can return satisfied ip address according to the topology of content > delivery.
Except for very small networks, the network topology isn’t just the name of the provider. I suspect that if you took away all the geoip type lookups the larger content delivery systems would work fine; but if you did the opposite (what you are proposing with EIL) they would not. I believe Netflix has public information about how their OpenConnect system uses BGP and network topology information. Ask (speaking only for myself) _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
