The IESG has received a request from the IP Performance Measurement WG (ippm) to consider the following document: - 'Two-Way Active Measurement Protocol (TWAMP) Data Model' <draft-ietf-ippm-twamp-yang-07.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 2018-04-27. 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 document specifies a data model for client and server implementations of the Two-Way Active Measurement Protocol (TWAMP). We define the TWAMP data model through Unified Modeling Language (UML) class diagrams and formally specify it using YANG. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-ippm-twamp-yang/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-ippm-twamp-yang/ballot/ No IPR declarations have been submitted directly on this I-D.