The IESG has received a request from the Transport Area Working Group WG (tsvwg) to consider the following document: - 'UDP Usage Guidelines' <draft-ietf-tsvwg-rfc5405bis-13.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 ietf@ietf.org mailing lists by 2016-05-31. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The User Datagram Protocol (UDP) provides a minimal message-passing transport that has no inherent congestion control mechanisms. This document provides guidelines on the use of UDP for the designers of applications, tunnels and other protocols that use UDP. Congestion control guidelines are a primary focus, but the document also provides guidance on other topics, including message sizes, reliability, checksums, middlebox traversal, the use of ECN, DSCPs, and ports. Because congestion control is critical to the stable operation of the Internet, applications and other protocols that choose to use UDP as an Internet transport must employ mechanisms to prevent congestion collapse and to establish some degree of fairness with concurrent traffic. They may also need to implement additional mechanisms, depending on how they use UDP. Some guidance is also applicable to the design of other protocols (e.g., protocols layered directly on IP or via IP-based tunnels), especially when these protocols do not themselves provide congestion control. This document obsoletes RFC5405 and adds guidelines for multicast UDP usage. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-tsvwg-rfc5405bis/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-tsvwg-rfc5405bis/ballot/ No IPR declarations have been submitted directly on this I-D.
