The IESG has approved the following document: - 'Specifying Alternate Semantics for the Explicit Congestion Notification (ECN) Field ' <draft-ietf-tsvwg-ecn-alternates-02.txt> as a BCP This document is the product of the Transport Area Working Group Working Group. The IESG contact persons are Lars Eggert and Magnus Westerlund. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-tsvwg-ecn-alternates-02.txt Technical Summary This document discusses how alternate semantics of the ECN field can co-exist where not all routers in a network are configured for a single interpretation of codepoints. Also discussed are the issues raised by nodes, including endsystems, configured for alternate-ECN usages. This document can be used as a means of migration from one alternate-ECN to another, where not all nodes can be configured to change at the same time. Additionally, means for a node (router) to determine which alternate to use with which packet is specified. And finally, this document discusses how well alternate-ECN traffic performs where it co-exists with competing traffic on a path. Working Group Summary There is strong consensus in the WG to publish this document. It has been reviewed by several people prior to the WG last call. Comments raised earlier have all been addressed. There are no outstanding open issues wrt this document. Protocol Quality This document has been well reviewed in the WG and comments raised have been addressed. James Polk (jmpolk@cisco.com) has acted as PROTO Document Shepherd for this document. Lars Eggert (eggert@netlab.nec.de) has reviewed this document for the IESG. _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
