The IESG has received a request from the Domain Name System Operations WG (dnsop) to consider the following document: - 'Fragmentation Avoidance in DNS' <draft-ietf-dnsop-avoid-fragmentation-15.txt> as Best Current Practice
The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the last-c...@ietf.org mailing lists by 2023-10-27. Exceptionally, comments may be sent to i...@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract EDNS0 enables a DNS server to send large responses using UDP and is widely deployed. Large DNS/UDP responses are fragmented, and IP fragmentation has exposed weaknesses in application protocols. It is possible to avoid IP fragmentation in DNS by limiting response size where possible, and signaling the need to upgrade from UDP to TCP transport where necessary. This document proposes techniques to avoid IP fragmentation in DNS. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-dnsop-avoid-fragmentation/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: rfc8899: Packetization Layer Path MTU Discovery for Datagram Transports (Proposed Standard - Internet Engineering Task Force (IETF)) _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
