Re: [quicwg/base-drafts] Revalidation for ECN (#4037)

Gorry Fairhurst <> Mon, 24 August 2020 09:18 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 851BA3A0BB8 for <>; Mon, 24 Aug 2020 02:18:11 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: 0.081
X-Spam-Status: No, score=0.081 tagged_above=-999 required=5 tests=[DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_IMAGE_ONLY_24=1.282, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id hciShOhONSga for <>; Mon, 24 Aug 2020 02:18:10 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 6EB2F3A0BA4 for <>; Mon, 24 Aug 2020 02:18:10 -0700 (PDT)
Received: from ( []) by (Postfix) with ESMTP id 8723E84059B for <>; Mon, 24 Aug 2020 02:18:09 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=pf2014; t=1598260689; bh=bdd+omUZjhRs+SiIhd8fnbLr1ZnG6VIdJzLrsBGFYfI=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=LrlzCU/Q6B4MjK4xbgC9py99nvUQbdgCb0Cd9QqkRgcqvXSybeb7BVZL9jkqifMtL HbW3SdIVLHkn7rbO7jHCN4UuTEHZ9P2rX0H5ZNHKfhhJd2P69/xldkaA09ZsU0JRmN 1sFiho4k2BsocIjXo7VQJRp09nwVkXBz2F96k2Hg=
Date: Mon, 24 Aug 2020 02:18:09 -0700
From: Gorry Fairhurst <>
Reply-To: quicwg/base-drafts <>
To: quicwg/base-drafts <>
Cc: Subscribed <>
Message-ID: <quicwg/base-drafts/pull/4037/review/>
In-Reply-To: <quicwg/base-drafts/pull/>
References: <quicwg/base-drafts/pull/>
Subject: Re: [quicwg/base-drafts] Revalidation for ECN (#4037)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5f4385d176be1_3d7e1964240073"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: gorryfair
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
Archived-At: <>
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Mon, 24 Aug 2020 09:18:12 -0000

@gorryfair commented on this pull request.

> @@ -3892,6 +3889,7 @@ errors are detected.
 Endpoints validate ECN for packets sent on each network path independently.  An
 endpoint thus validates ECN on new connection establishment, when switching to a
 server's preferred address, and on active connection migration to a new path.
+If validation fails, an endpoint could also periodically attempt validation.

To be clear: I suggest we keep the text that says: "An endpoint validates the use of ECN on the path, both during connection establishment and when migrating to a new path ({{migration}})." 

... Although the simplest way to do this is to monitor an increase in the ECN counters reported.
I suspect there have been too many threads/issues related to ECN text (some have diverged and some concluded with no action) and those people (me included)  involved should now read a clean version of the ECN text. I do not expect this text to be hard to finalise.

You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub: