* Jim Reid: > The preferred approach might probably be along these lines: > [1] EDNS0 + DO with a buffer of 5-8K (ish) > [2] TCP + DO when [1] fails > [3] EDNS0 + DO + 1.5K (ish) buffer if [2] fails > [4] EDNS0 (no DO) with a 1.5K (ish) buffer > [5] Vanilla UDP (no EDNS0) if [4] fails
DO is rather pointless because the priming response cannot be validated anyway (even if ROOT-SERVERS.NET were secure, which is currently not planned). -- Florian Weimer <fwei...@bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99 _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop