Packetization Layer Path MTU Discovery for Datagram Transports
RFC 8899

Received changes through RFC Editor sync (created alias RFC 8899, changed abstract to 'This document specifies Datagram Packetization Layer Path MTU Discovery (DPLPMTUD). This is a robust method for Path MTU Discovery (PMTUD) for datagram Packetization Layers (PLs). It allows a PL, or a datagram application that uses a PL, to discover whether a network path can support the current size of datagram. This can be used to detect and reduce the message size when a sender encounters a packet black hole. It can also probe a network path to discover whether the maximum packet size can be increased. This provides functionality for datagram transports that is equivalent to the PLPMTUD specification for TCP, specified in RFC 4821, which it updates. It also updates the UDP Usage Guidelines to refer to this method for use with UDP datagrams and updates SCTP.

The document provides implementation notes for incorporating Datagram PMTUD into IETF datagram transports or applications that use datagram transports.

This specification updates RFC 4960, RFC 4821, RFC 6951, RFC 8085, and RFC 8261.', changed pages to 35, changed standardization level to Proposed Standard, changed state to RFC, added RFC published event at 2020-09-11, changed IESG state to RFC Published, created updates relation between draft-ietf-tsvwg-datagram-plpmtud and RFC 4821, created updates relation between draft-ietf-tsvwg-datagram-plpmtud and RFC 4960, created updates relation between draft-ietf-tsvwg-datagram-plpmtud and RFC 6951, created updates relation between draft-ietf-tsvwg-datagram-plpmtud and RFC 8085, created updates relation between draft-ietf-tsvwg-datagram-plpmtud and RFC 8261)