Tunnelling of Explicit Congestion Notification
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org> Subject: Protocol Action: 'Tunnelling of Explicit Congestion Notification' to Proposed Standard The IESG has approved the following document: - 'Tunnelling of Explicit Congestion Notification' <draft-ietf-tsvwg-ecn-tunnel-10.txt> as a Proposed Standard This document is the product of the Transport Area Working Group. The IESG contact persons are David Harrington and Lars Eggert. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-tsvwg-ecn-tunnel/
Technical Summary This document redefines how the explicit congestion notification (ECN) field of the IP header should be constructed on entry to and exit from any IP in IP tunnel. It updates RFC3168, aligning this with RFC4301 for IPsec ECN processing. It also updates RFC4301 to add new behaviours for previously unused combinations of inner and outer header. This update is thought to benefit work on PCN and align IP tunnel behaviour with that of IPSec. Working Group Summary The WG contributed to this work and participated in review of this document. It has the support of the TSVWG. Document Quality There are no implementation reports for this specification, but interoperability issues were discussed in the WG and the current specification is thought ready for deployment. Most of the final discussion was on good engineering practice for the future use of the ECN codepoints. David Black assisted in performing this review and in review of the normative wording. Personnel Document Shepherd: Gorry Fairhurst, TSVWG Chair Responsible Area Director: David Harrington No IANA experts are needed for this document.