The IESG has received a request from the IP Performance Measurement WG (ippm) to consider the following document: - 'OWAMP and TWAMP Well-Known Port Assignments' <draft-ietf-ippm-port-twamp-test-03.txt> as Proposed Standard 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 2018-11-26. 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 This memo explains the motivation and describes the re-assignment of well-known ports for the OWAMP and TWAMP protocols for control and measurement, and clarifies the meaning and composition of these standards track protocol names for the industry. The memo updates RFC 4656 and RFC 5357, in terms of the UDP well- known port assignments, and clarifies the complete OWAMP and TWAMP protocol composition for the industry. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-ippm-port-twamp-test/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-ippm-port-twamp-test/ballot/ No IPR declarations have been submitted directly on this I-D. The document contains these normative downward references. See RFC 3967 for additional information: rfc7594: A Framework for Large-Scale Measurement of Broadband Performance (LMAP) (Informational - IETF stream)