Evaluation: draft-ietf-tsvwg-tcp-nonce - Robust ECN Signaling with Nonces to Experimental

[IESG Secretary <iesg-secretary@ietf.org>]

Last Call to expire on: 2003-2-14

	Please return the full line with your position.

                    Yes    No-Objection  Discuss *  Abstain  


Harald Alvestrand   [   ]     [   ]       [   ]      [   ]
Steve Bellovin      [   ]     [   ]       [   ]      [   ]
Scott Bradner       [   ]     [   ]       [   ]      [   ]
Randy Bush          [   ]     [   ]       [   ]      [   ]
Patrik Faltstrom    [   ]     [   ]       [   ]      [   ]
Bill Fenner         [   ]     [   ]       [   ]      [   ]
Ned Freed           [   ]     [   ]       [   ]      [   ]
Allison Mankin      [ X ]     [   ]       [   ]      [   ]
Thomas Narten       [   ]     [   ]       [   ]      [   ]
Erik Nordmark       [   ]     [   ]       [   ]      [   ]
Jeff Schiller       [   ]     [   ]       [   ]      [   ]
Bert Wijnen         [   ]     [   ]       [   ]      [   ]
Alex Zinin          [   ]     [   ]       [   ]      [   ]



 2/3 (9) Yes or No-Objection opinions needed to pass. 
 
 * Indicate reason if 'Discuss'.
 
^L
To: IETF-Announce:;
Dcc: *******
Cc: RFC Editor <rfc-editor@isi.edu>,
 Internet Architecture Board <iab@iab.org>, tsvwg@ietf.org
From: The IESG <iesg-secretary@ietf.org>
Subject: Document Action: Robust ECN Signaling with Nonces to 
	   Experimental
-------------


The IESG has approved the Internet-Draft 'Robust ECN Signaling with 
Nonces' <draft-ietf-tsvwg-tcp-nonce-04.txt> as an 
[Experimental|Proposed] Standard.  This document is the product of the 
Transport Area Working Group. The IESG contact persons are Scott Bradner 
and Allison Mankin. 

Technical Summary

This specification describes the ECN-nonce, an optional addition to 
Explicit Congestion Notification (RFC 3168) that protects against 
accidental or malicious concealment of marked packets from the TCP 
sender. It improves the robustness of congestion control by 
preventing receivers from exploiting ECN to gain an unfair share of 
network bandwidth. The ECN-nonce uses the two ECT codepoints in the 
ECN field of the IP header, and requires a flag in the TCP header. It 
is computationally efficient for both routers and hosts.

Working Group Summary 

The working group supported publishing of this document and the Last 
Call discussion of the document raised no issues with the quality 
of the document. 

Protocol Quality

There are implementations of the nonce algorithm and bits accompanying 
the implementations of RFC 3168, the Explicit Congestion Notification 
Proposed Standard. The specification was reviewed for the IESG by 
Allison Mankin and Randy Bush.