Re: [Int-area] WG Adoption Call: IP Fragmentation Considered Fragile

"Black, David" <David.Black@dell.com> Thu, 26 July 2018 14:28 UTC

Return-Path: <David.Black@dell.com>
X-Original-To: int-area@ietfa.amsl.com
Delivered-To: int-area@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D4223130DF7; Thu, 26 Jul 2018 07:28:08 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.71
X-Spam-Level:
X-Spam-Status: No, score=-2.71 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, T_DKIMWL_WL_HIGH=-0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=dell.com header.b=CxBxl9ZF; dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=emc.com header.b=RmMSvOd6
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 cvfLLLeJKppr; Thu, 26 Jul 2018 07:28:06 -0700 (PDT)
Received: from esa5.dell-outbound.iphmx.com (esa5.dell-outbound.iphmx.com [68.232.153.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9F981131026; Thu, 26 Jul 2018 07:28:06 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dell.com; i=@dell.com; q=dns/txt; s=smtpout; t=1532615096; x=1564151096; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=Y6cOP52dKkyymwKuZCT/Am3OIOZCYb8QeaFf23OY7vI=; b=CxBxl9ZFKgmoUg4g4JK+nKuKuOHWoGcV02R4eFOK3Sl0vs3Lfcb56sMV fhwDDKcFdLZ47+r4tbhIGtLBMfa8pBCulX3ENY3JHx8hdCOjSQmjgOSf9 n1IuLFdQM4CsIgMCCWOnOk4W93HHiGIWmpjiAUgfmmjPdQoJYKAfS1wxB k=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: =?us-ascii?q?A2HTAQAy2llbh8mZ6ERdHAEBAQQBAQoBA?= =?us-ascii?q?YJ6gTd/KAqDdJRAggyDO5IngSs7CxgLC4Q+AheCXyE3FQECAQECAQECAQECEAE?= =?us-ascii?q?BAQoLCQgpIwyCNSQBDi8cLwgGAQEBAQEBJwEBAQEBAQEBAQEBAQEBAQEBARcCQ?= =?us-ascii?q?wESAQEYAQEBAQIBAQEbBhEMHw8FBgEEBwQCAQgRBAEBAQICBh0DAgICJQsUAQg?= =?us-ascii?q?IAgQOBQiDGAGBdwgBDrE7gS6Ce4dHAwWBC4ZggReBWT6BV4JMgxsBAYEoOhWCa?= =?us-ascii?q?jGCJIdQki0DBAICkHqEGogikgwCBAIEBQIUgVeBdXAvIYJpgjODToUUhT5vAY4?= =?us-ascii?q?CgRsBAQ?=
X-IPAS-Result: =?us-ascii?q?A2HTAQAy2llbh8mZ6ERdHAEBAQQBAQoBAYJ6gTd/KAqDdJR?= =?us-ascii?q?AggyDO5IngSs7CxgLC4Q+AheCXyE3FQECAQECAQECAQECEAEBAQoLCQgpIwyCN?= =?us-ascii?q?SQBDi8cLwgGAQEBAQEBJwEBAQEBAQEBAQEBAQEBAQEBARcCQwESAQEYAQEBAQI?= =?us-ascii?q?BAQEbBhEMHw8FBgEEBwQCAQgRBAEBAQICBh0DAgICJQsUAQgIAgQOBQiDGAGBd?= =?us-ascii?q?wgBDrE7gS6Ce4dHAwWBC4ZggReBWT6BV4JMgxsBAYEoOhWCajGCJIdQki0DBAI?= =?us-ascii?q?CkHqEGogikgwCBAIEBQIUgVeBdXAvIYJpgjODToUUhT5vAY4CgRsBAQ?=
Received: from esa1.dell-outbound2.iphmx.com ([68.232.153.201]) by esa5.dell-outbound.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jul 2018 09:24:41 -0500
From: "Black, David" <David.Black@dell.com>
Received: from mailuogwdur.emc.com ([128.221.224.79]) by esa1.dell-outbound2.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Jul 2018 20:20:09 +0600
Received: from maildlpprd56.lss.emc.com (maildlpprd56.lss.emc.com [10.106.48.160]) by mailuogwprd51.lss.emc.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.0) with ESMTP id w6QERkRW001440 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 26 Jul 2018 10:27:46 -0400
X-DKIM: OpenDKIM Filter v2.4.3 mailuogwprd51.lss.emc.com w6QERkRW001440
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=emc.com; s=jan2013; t=1532615267; bh=iPr9/UkmuPJ0WuCzFioYyGdfWGI=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: Content-Type:Content-Transfer-Encoding:MIME-Version; b=RmMSvOd6TgMultjJgZ9UgAGlyLKotjFI+WomN4Bq+FmF+/3XO3NoihHxN891y/p1+ hCSqqnBetI+YFJW5PWuK2+VXllzgyAvZEtKf+VjmnTuIqQEtsbt/wSJh9fj2Bzsz/i BrjOOx0JIOve2plIXDSAP/p5Z1jXIqY88Ho+/uN8=
X-DKIM: OpenDKIM Filter v2.4.3 mailuogwprd51.lss.emc.com w6QERkRW001440
Received: from mailusrhubprd03.lss.emc.com (mailusrhubprd03.lss.emc.com [10.253.24.21]) by maildlpprd56.lss.emc.com (RSA Interceptor); Thu, 26 Jul 2018 10:27:31 -0400
Received: from MXHUB308.corp.emc.com (MXHUB308.corp.emc.com [10.146.3.34]) by mailusrhubprd03.lss.emc.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.0) with ESMTP id w6QERXKW005954 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=FAIL); Thu, 26 Jul 2018 10:27:34 -0400
Received: from MX307CL04.corp.emc.com ([fe80::849f:5da2:11b:4385]) by MXHUB308.corp.emc.com ([10.146.3.34]) with mapi id 14.03.0399.000; Thu, 26 Jul 2018 10:27:33 -0400
To: Joe Touch <touch@strayalpha.com>
CC: "internet-area@ietf.org" <int-area@ietf.org>, "intarea-chairs@ietf.org" <intarea-chairs@ietf.org>
Thread-Topic: [Int-area] WG Adoption Call: IP Fragmentation Considered Fragile
Thread-Index: AQHUI4aGFkqwG7lztkapJHj3/IpHTqShCNQAgACJhMA=
Date: Thu, 26 Jul 2018 14:27:32 +0000
Message-ID: <CE03DB3D7B45C245BCA0D24327794936301F48D2@MX307CL04.corp.emc.com>
References: <F227637E-B12D-45AA-AD69-74C947409012@ericsson.com> <0466770D-C8CA-49BB-AC10-5805CFDFB165@strayalpha.com>
In-Reply-To: <0466770D-C8CA-49BB-AC10-5805CFDFB165@strayalpha.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-originating-ip: [10.238.21.34]
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-Sentrion-Hostname: mailusrhubprd03.lss.emc.com
X-RSA-Classifications: public
Archived-At: <https://mailarchive.ietf.org/arch/msg/int-area/6294l3Po9fXXDh1Lm3g0YiTuJUM>
Subject: Re: [Int-area] WG Adoption Call: IP Fragmentation Considered Fragile
X-BeenThere: int-area@ietf.org
X-Mailman-Version: 2.1.27
Precedence: list
List-Id: IETF Internet Area Mailing List <int-area.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/int-area>, <mailto:int-area-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/int-area/>
List-Post: <mailto:int-area@ietf.org>
List-Help: <mailto:int-area-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/int-area>, <mailto:int-area-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 26 Jul 2018 14:28:09 -0000

> I still think it would be useful for this doc to describe how tunnels interact
> with fragmentation (per draft-ietf-intarea-tunnels), which seems to be
> something I’ve noted several times before.

I believe that Ron's already promised to add text on this ...

Thanks, --David

> -----Original Message-----
> From: Int-area [mailto:int-area-bounces@ietf.org] On Behalf Of Joe Touch
> Sent: Wednesday, July 25, 2018 10:15 PM
> To: Wassim Haddad
> Cc: internet-area@ietf.org; intarea-chairs@ietf.org
> Subject: Re: [Int-area] WG Adoption Call: IP Fragmentation Considered
> Fragile
> 
> Hi, all,
> 
> I still think it would be useful for this doc to describe how tunnels interact
> with fragmentation (per draft-ietf-intarea-tunnels), which seems to be
> something I’ve noted several times before.
> 
> I’m also still not thrilled with the title I’d be happier with “IP fragmentation
> still not supported per requirements”, and I’d have to see where this goes
> with final recommendations.
> 
> But I agree *some* statement is worthwhile here. My primary concern is
> that if we’re not careful, endorsing the status quo will only ensure nothing
> changes.
> 
> So I sincerely hope that some of the strongest recommendations here are
> that both direct IP devices and tunnel ingress/egress devices need to do a
> better job of supporting fragmentation, and that protocol/device designers
> SHOULD avoid mechanisms that are not compatible with fragmentation (e.g.,
> NAT or DPI without doing reassembly first).
> 
> Joe
> 
> > On Jul 24, 2018, at 12:42 PM, Wassim Haddad
> <wassim.haddad@ericsson.com> wrote:
> >
> > Dear all,
> >
> > We would like to start a WG adoption call for draft-bonica-intarea-frag-
> fragile (“IP Fragmentation Considered Fragile”).
> >
> > https://www.ietf.org/id/draft-bonica-intarea-frag-fragile-03.txt
> >
> >
> > Please indicate your preferences on the mailling list. The deadline is August
> 10th.
> >
> >
> > Thanks,
> >
> > Juan & Wassim
> > _______________________________________________
> > Int-area mailing list
> > Int-area@ietf.org
> > https://www.ietf.org/mailman/listinfo/int-area
> 
> _______________________________________________
> Int-area mailing list
> Int-area@ietf.org
> https://www.ietf.org/mailman/listinfo/int-area