Re: [quicwg/base-drafts] Updated ICMP PMTU section (#1412)

Igor Lubashev <notifications@github.com> Mon, 18 June 2018 21:47 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 77A93130FFC for <quic-issues@ietfa.amsl.com>; Mon, 18 Jun 2018 14:47:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -8.01
X-Spam-Level:
X-Spam-Status: No, score=-8.01 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OXxdczg4rMdk for <quic-issues@ietfa.amsl.com>; Mon, 18 Jun 2018 14:47:07 -0700 (PDT)
Received: from out-5.smtp.github.com (out-5.smtp.github.com [192.30.252.196]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 749E5130FDF for <quic-issues@ietf.org>; Mon, 18 Jun 2018 14:47:07 -0700 (PDT)
Date: Mon, 18 Jun 2018 14:47:06 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1529358426; bh=Y/a9A+nqwlgpSE+MWFeu27Pp9u5v1vumdYcDZhITfDI=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=iAU8PivBybcjf3oQTFdQEAoqbk3+TLZEBPDmZ6uXCKUcady6h9x67GQx9yenlpkaV t2iY8qr7eTqz7TRrgYfbA6W9Y7KlV7CWYXIvqmEfuNeW9nSSnm6q1gdHTeuzqS6Ck0 k2vCfhvbUskn8cYFFlFvqIto1ydU6tflUoZy1nBs=
From: Igor Lubashev <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab74de55e9f7aed01fc3c09193703d4a223df4d09e92cf00000001173fea5a92a169ce13a079ba@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/1412/review/129751590@github.com>
In-Reply-To: <quicwg/base-drafts/pull/1412@github.com>
References: <quicwg/base-drafts/pull/1412@github.com>
Subject: Re: [quicwg/base-drafts] Updated ICMP PMTU section (#1412)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5b28285abccc7_5752ab20e3c8f582167ac"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: igorlord
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/8oWpB_WJyrCAuzvKyBglTgzxOcs>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.26
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 18 Jun 2018 21:47:10 -0000

igorlord commented on this pull request.



>  
-* Any reduction in PMTU due to a report contained in an ICMP packet is
-provisional until QUIC's loss detection algorithm determines that the packet is
-actually lost.
+Any ICMP messages that fail validation MUST be discarded.

The language in this section says that validation is a SHOULD.  But if that validation fails, discarding is a MUST.  (And if the validation is not done, since it is not mandatory, then the signal SHOULD be treated as a signal without an on-path proof.)

Do you still think this is a problem?

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/1412#discussion_r196236060