On Wed, Oct 9, 2019 at 12:04 AM <fujiw...@jprs.co.jp> wrote: > Dear dnsop WG, > > Please review draft-fujiwara-dnsop-avoid-fragmentation-01. > https://tools.ietf.org/html/draft-fujiwara-dnsop-avoid-fragmentation-01 > > Main differences are: > - New Co-author > - Refer RFC 8085 UDP Usage Guidelines > - SHOULD send DNS responses with IP_DONTFRAG / IPV6_DONTFRAG [RFC3542] > - Use actual path MTU information, or the default maximum DNS/UDP payload > size > - Added text about how to retrieve path MTU value in appendix > getsockopt() IP_MTU and IPV6_MTU (Linux only) > - default maximum DNS/UDP payload size >= 1220, and <= 1400 > - Request to zone operator: Use smaller contents (number of RRs, DNSSEC > key) > > -- > Kazunori Fujiwara, JPRS <fujiw...@jprs.co.jp> >
Thank you for working on this. I would like to suggest updates to two sections so that they read better. ----- current: 1. Introduction DNS has EDNS0 [RFC6891] mechanism. It enables that DNS server can send large size response using UDP. Now EDNS0 is widely deployed, and DNS (over UDP) is said to be the biggest user of IP fragmentation. ---- rewrite: 1. Introduction DNS has the EDNS0 [RFC6891] mechanism, which enables a DNS server to send large size response using UDP. Now that EDNS0 is widely deployed, DNS (over UDP) is said to be the biggest user of IP fragmentation. ------ current: 5. Incremental deployment The proposed method supports incremental deployment. When a full-service resolver implements the proposed method, the full-service resolver becomes to avoid IP fragmentation in DNS. When an authoritative server implements the proposed method, the authoritative server becomes to avoid IP fragmentation in DNS. ---- rewrite: 5. Incremental deployment The proposed method supports incremental deployment. When a full-service resolver implements the proposed method, the full-service resolver avoids IP fragmentation in DNS. When an authoritative server implements the proposed method, the authoritative server avoids IP fragmentation in DNS. -- Bob Harold
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