[DNSOP] draft-fujiwara-dnsop-avoid-fragmentation-01

fujiwara@jprs.co.jp Wed, 09 October 2019 04:04 UTC

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Subject: [DNSOP] draft-fujiwara-dnsop-avoid-fragmentation-01
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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 <fujiwara@jprs.co.jp>