The IESG has received a request from the Transparent Interconnection of Lots of Links WG (trill) to consider the following document: - 'TRILL: ECN (Explicit Congestion Notification) Support' <draft-ietf-trill-ecn-support-04.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 2018-02-05. 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 Explicit congestion notification (ECN) allows a forwarding element to notify downstream devices, including the destination, of the onset of congestion without having to drop packets. This can improve network efficiency through better flow control without packet drops. This document extends ECN to TRILL switches, including integration with IP ECN, and provides for ECN marking in the TRILL Header Extension Flags Word (see RFC 7179). The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-trill-ecn-support/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-trill-ecn-support/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: draft-ietf-tsvwg-ecn-encap-guidelines: Guidelines for Adding Congestion Notification to Protocols that Encapsulate IP (None - IETF stream)