IETF Logo Mail Archive

Re: [Tsv-art] Fwd: 2 really urgent review requests

"Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com> Thu, 26 October 2017 11:01 UTC

Return-Path: <michael.scharf@nokia.com>
X-Original-To: tsv-art@ietfa.amsl.com
Delivered-To: tsv-art@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E427F13B0EA for <tsv-art@ietfa.amsl.com>; Thu, 26 Oct 2017 04:01:15 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.347
X-Spam-Level:
X-Spam-Status: No, score=-1.347 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001, URG_BIZ=0.573, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=nokia.onmicrosoft.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 jKkQYWS_N2U9 for <tsv-art@ietfa.amsl.com>; Thu, 26 Oct 2017 04:01:14 -0700 (PDT)
Received: from EUR01-DB5-obe.outbound.protection.outlook.com (mail-db5eur01on0124.outbound.protection.outlook.com [104.47.2.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BEB171387BC for <tsv-art@ietf.org>; Thu, 26 Oct 2017 04:01:13 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nokia.onmicrosoft.com; s=selector1-nokia-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=YxD7hXY9jUpmmpmV+frNghCl0htIRphofCO0fmzZuDA=; b=BDUb6vBmnNgUavlefs9857P86Qhc+YSHqJuQPKj+rdSN8cJk2VBSQlPRQXUGJTpe8m0I+j2KOcjBpHuia9Vb4mMV1fCQCNadsyOJuyPdrZ1EmVzWixMQFvpLmFdmakBCbwRblSzSywl9gN/7O76fwaoW31XpAXBKPTty5GQVjn4=
Received: from AM5PR0701MB2547.eurprd07.prod.outlook.com (10.173.92.15) by AM5PR0701MB2547.eurprd07.prod.outlook.com (10.173.92.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.178.3; Thu, 26 Oct 2017 11:01:11 +0000
Received: from AM5PR0701MB2547.eurprd07.prod.outlook.com ([fe80::d1b9:c24d:c47f:7bdc]) by AM5PR0701MB2547.eurprd07.prod.outlook.com ([fe80::d1b9:c24d:c47f:7bdc%18]) with mapi id 15.20.0178.007; Thu, 26 Oct 2017 11:01:11 +0000
From: "Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com>
To: Martin Stiemerling <mls.ietf@gmail.com>, "tsv-art@ietf.org" <tsv-art@ietf.org>
Thread-Topic: [Tsv-art] Fwd: 2 really urgent review requests
Thread-Index: AQHTTjvb/yR5NYw8h0aDZsWMxz1spaL18MiA
Date: Thu, 26 Oct 2017 11:01:11 +0000
Message-ID: <AM5PR0701MB2547247B745767BE3EFE297093450@AM5PR0701MB2547.eurprd07.prod.outlook.com>
References: <6a6b2187-8b41-9289-5859-37ac8fc4c959@gmx.de> <51fec53d-13fc-84df-ec67-caf4ebe47f45@gmail.com>
In-Reply-To: <51fec53d-13fc-84df-ec67-caf4ebe47f45@gmail.com>
Accept-Language: en-US, de-DE
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: spf=none (sender IP is ) smtp.mailfrom=michael.scharf@nokia.com;
x-originating-ip: [135.245.212.11]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1; AM5PR0701MB2547; 6:l86T1eyZ2/9rRMJWC0+50MGd4wasQ4NDy6YOwxZMein9T8x10yvx7GEKXt9OolCN+EZzh3neb6ikOQbNmB+mZCChjKLjKZCklNTPDoTGEXVpPVkO1zpNUvgF8x0mdlcS5u8kqRHjbpv4tlqyTJYBYEyBumYYjX1grY22rpeLo1FxrjVPZhCuUw1+byw5FA8RAlCrG4HsD4BGGJC5sWJAhPFYRYP4u2u42xbKHpcXt3eR2yo66LYOgdD0DZdRxFDjI6N0C6fRv+Qt5EPaEwsOJA1vgujAANUS0WOYnAGc4LGucK6UWqDhQWG0S88h2S+YKPoyNyTKWFUTgyDKjlIUuUDRXaEAQrDoY+1/kcdK2gU=; 5:+1MrmAR6pDY2RyvUtlu81httTVlQmG7+1W7X2fdDDPUJG7nzJPFazhpfjLYiO5hFIhV5tG2XCH1GuXt+zkym1zPB+o7ojbzA738fLPJarINH5DtsKB+UYQxZRk5zVVUaVI32FK23Xyh+7LX+bb/e3syBx7xl8zPzLjAIiOGpSw8=; 24:97JpziKGQKLBrgB4934hQQ3A6n3C9jyw/2aPRR5q5BTjUTKjuR7GX2LXfq5MliOJQTFq5CeALo0ta1dbbyXyaF0r25n6T9ZHWZh4eh5I7lE=; 7:vnaC/KuX3Urr5DwUUjDihqCq7+Bp2HEw9O8pMb60mXqq4bSqnQAuLn/vUuHayGcoq9I2uuUnjQKyLKypskn3eoOfCUTUPVPWouN4JCcyyGzXguTIdMA1YA2JYlPtzcbKo4cqXQO8LTu86DBgCoIOo8ggpdMhGWUnMnIthAg9otcI0HtKeEIVR47aSJDv3bFhFasxUjGJEokHst2+ASdVxSAMRe7GvNC2Farpy3qnaVq1BOwvvjyo53OporgFQ7Km
x-ms-exchange-antispam-srfa-diagnostics: SSOS;
x-ms-office365-filtering-correlation-id: 11ab8ed6-d954-4fe0-26d3-08d51c60de28
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(48565401081)(4534020)(4602075)(4627075)(201703031133081)(201702281549075)(2017052603199); SRVR:AM5PR0701MB2547;
x-ms-traffictypediagnostic: AM5PR0701MB2547:
x-exchange-antispam-report-test: UriScan:;
x-microsoft-antispam-prvs: <AM5PR0701MB2547E8AB4C6C49C4C04B3F3B93450@AM5PR0701MB2547.eurprd07.prod.outlook.com>
x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(2401047)(5005006)(8121501046)(93006095)(93001095)(10201501046)(3231020)(100000703101)(100105400095)(3002001)(6055026)(6041248)(20161123562025)(20161123555025)(20161123560025)(20161123564025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123558100)(6072148)(201708071742011)(100000704101)(100105200095)(100000705101)(100105500095); SRVR:AM5PR0701MB2547; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:AM5PR0701MB2547;
x-forefront-prvs: 04724A515E
x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(6009001)(376002)(39860400002)(346002)(51874003)(189002)(199003)(53754006)(52314003)(13464003)(8676002)(81156014)(81166006)(86362001)(99286003)(9686003)(229853002)(8936002)(53936002)(68736007)(305945005)(7736002)(2900100001)(76176999)(966005)(6306002)(54356999)(50986999)(55016002)(97736004)(14454004)(74316002)(53546010)(6436002)(2950100002)(6506006)(5660300001)(7696004)(2501003)(189998001)(106356001)(105586002)(3280700002)(5250100002)(101416001)(39060400002)(316002)(6246003)(33656002)(2906002)(102836003)(3846002)(6116002)(25786009)(3660700001)(110136005)(218543002)(478600001)(66066001); DIR:OUT; SFP:1102; SCL:1; SRVR:AM5PR0701MB2547; H:AM5PR0701MB2547.eurprd07.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en;
received-spf: None (protection.outlook.com: nokia.com does not designate permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: nokia.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 11ab8ed6-d954-4fe0-26d3-08d51c60de28
X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Oct 2017 11:01:11.1310 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0701MB2547
Archived-At: <https://mailarchive.ietf.org/arch/msg/tsv-art/C7zWRpqnADmlKfmrkiKVuSUjvnQ>
Subject: Re: [Tsv-art] Fwd: 2 really urgent review requests
X-BeenThere: tsv-art@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Transport Area Review Team <tsv-art.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tsv-art>, <mailto:tsv-art-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tsv-art/>
List-Post: <mailto:tsv-art@ietf.org>
List-Help: <mailto:tsv-art-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tsv-art>, <mailto:tsv-art-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 26 Oct 2017 11:01:16 -0000

I have quickly scanned through draft-ietf-6man-maxra-03, even if this is outside my area of expertise. 

I think the document has to better describe the impact of setting K to a large value (K >> 3), as a large K increases seems to increase the amount of needless traffic and could theoretically even result in congestion (or needless energy consumption).

Specifically, Section 3 explains that "K~=1 gives 99% reliability, K~=2 gives 99.99% reliability, and K~=3 gives 99.9999% reliability - the latter should be good enough for a lot of scenarios". I don't think there is a major issue for these values of K. But as far as I understand , what is missing is an explicit statement regarding the downside of larger values of K .

Specifically, I believe that in Section 4.  "Updates to RFC4861" ...

   As explained in Section 3, the relationship between MaxRtrAdvInterval
   and AdvDefaultLifetime must be chosen to take into account the
   probability of packet loss.

... some additional guidance should be added regarding the tradeoff of reliability and needless traffic (or energy consumption).

As a nit, I wonder about the unit of "MaxRtrAdvInterval" in ...

   MaxRtrAdvInterval MUST be no greater than 65535.  AdvDefaultLifetime
   MUST either be zero (the router is not to be used as a default
   router) or be a value between MaxRtrAdvInterval and 65535.

According to RFC 4861 the parameter "MaxRtrAdvInterval" is in seconds but this is missing here.


Anyway, I could just spent 15min on the doc...

Michael


> -----Original Message-----
> From: Tsv-art [mailto:tsv-art-bounces@ietf.org] On Behalf Of Martin
> Stiemerling
> Sent: Thursday, October 26, 2017 11:22 AM
> To: tsv-art@ietf.org
> Subject: [Tsv-art] Fwd: 2 really urgent review requests
> 
> used a wrong sender address...
> 
> 
> -------- Weitergeleitete Nachricht --------
> Betreff: 2 really urgent review requests
> Datum: Thu, 26 Oct 2017 09:55:29 +0200
> 
> An: tsv-art@ietf.org
> 
> Hi all,
> 
> There are two drafts with a request by Mirja to review them, but these two
> drafts are on the telechat today:
> 
> draft-ietf-bier-mpls-encapsulation-11
> draft-ietf-6man-maxra-03
> 
> I am full loaded today and won't be able to read them, but does anybody
> else have a free slot before 3 pm CEST to briefly review these two or one of
> these drafts?
> 
> Thanks in advance,
> 
>    Martin
> 
> _______________________________________________
> Tsv-art mailing list
> Tsv-art@ietf.org
> https://www.ietf.org/mailman/listinfo/tsv-art

v2.23.0 | Report a Bug | By Email