IETF Logo Mail Archive

Re: [Nfvrg] [Detnet] [5gangip] Network Slicing - a suggestion that we meet to discuss in Seoul

"Pascal Thubert (pthubert)" <pthubert@cisco.com> Wed, 02 November 2016 10:41 UTC

Return-Path: <pthubert@cisco.com>
X-Original-To: nfvrg@ietfa.amsl.com
Delivered-To: nfvrg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DEE3412948A for <nfvrg@ietfa.amsl.com>; Wed, 2 Nov 2016 03:41:03 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -16.018
X-Spam-Level:
X-Spam-Status: No, score=-16.018 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_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RP_MATCHES_RCVD=-1.497, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 MBm-eA3rfmZS for <nfvrg@ietfa.amsl.com>; Wed, 2 Nov 2016 03:41:02 -0700 (PDT)
Received: from alln-iport-4.cisco.com (alln-iport-4.cisco.com [173.37.142.91]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 16AD1129ABB for <nfvrg@irtf.org>; Wed, 2 Nov 2016 03:41:02 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=2135; q=dns/txt; s=iport; t=1478083262; x=1479292862; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=NRz2/BKu2DoHdd0Xhd4/FQ1Z8L/XvtOaDxsDpSOF5sY=; b=X4Avl8jhHwbTEV6CcT2e4+SJVZw1MF4zGFGhZ6RrE7GkWeFVGePlqM88 7sy3Ku19d+4SDf3Fbaor4MpfvlXrST5kVngbXjvdiM1VIemOmTYhhxctg pLIqFenFI1SQijHGKeEFcES5mHs9GUzB5bylye1ldVlfKH67ugQKbd6i1 I=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0AvAQAnwhlY/4QNJK1dDgsBAQEBAQEBAQEBAQcBAQEBAYMsAQEBAQEfWHwHjTCXAYdhjGaCBx0LhTBKAoIbPxQBAgEBAQEBAQFiKIRhAQEBBAEBATc0CwwEAgEIEQQBAQEeCQchBgsUCQgCBAENBQiINAMXDrU+DYNzAQEBAQEBAQEBAQEBAQEBAQEBAQEBFwWGPYRVgkeHYAWOUYsXNQGNBoMskA+IeYQfhAMBHjZng1yBADtyh1CBDAEBAQ
X-IronPort-AV: E=Sophos;i="5.31,583,1473120000"; d="scan'208";a="342388911"
Received: from alln-core-10.cisco.com ([173.36.13.132]) by alln-iport-4.cisco.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 02 Nov 2016 10:41:01 +0000
Received: from XCH-ALN-001.cisco.com (xch-aln-001.cisco.com [173.36.7.11]) by alln-core-10.cisco.com (8.14.5/8.14.5) with ESMTP id uA2Af165009457 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL); Wed, 2 Nov 2016 10:41:01 GMT
Received: from xch-rcd-001.cisco.com (173.37.102.11) by XCH-ALN-001.cisco.com (173.36.7.11) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Wed, 2 Nov 2016 05:41:00 -0500
Received: from xch-rcd-001.cisco.com ([173.37.102.11]) by XCH-RCD-001.cisco.com ([173.37.102.11]) with mapi id 15.00.1210.000; Wed, 2 Nov 2016 05:41:00 -0500
From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
To: Joe Touch <touch@isi.edu>, Stewart Bryant <stewart.bryant@gmail.com>, "5gangip@ietf.org" <5gangip@ietf.org>, "detnet@ietf.org" <detnet@ietf.org>, "nfvrg@irtf.org" <nfvrg@irtf.org>, "draft-galis-anima-autonomic-slice-networking@ietf.org" <draft-galis-anima-autonomic-slice-networking@ietf.org>, "draft-vonhugo-5gangip-ip-issues@ietf.org" <draft-vonhugo-5gangip-ip-issues@ietf.org>, "draft-xuan-dmm-multicast-mobility-slicing@ietf.org" <draft-xuan-dmm-multicast-mobility-slicing@ietf.org>, "draft-ietf-teas-actn-framework@ietf.org" <draft-ietf-teas-actn-framework@ietf.org>
Thread-Topic: [Detnet] [5gangip] Network Slicing - a suggestion that we meet to discuss in Seoul
Thread-Index: AQHSNGDYVCGPJwxoL02hq95RFB3oK6DE2mgAgAAxEgCAAHQtEA==
Date: Wed, 02 Nov 2016 10:40:35 +0000
Deferred-Delivery: Wed, 2 Nov 2016 10:40:11 +0000
Message-ID: <0aaf6a442c9941d4baf9b3f0a0003182@XCH-RCD-001.cisco.com>
References: <6761290b-eac5-8241-eb7f-32683fe594a1@gmail.com> <344f12df-4f25-c7ce-ec38-1354f7fca90e@isi.edu> <251f8c92-45f5-00ac-4507-173404df7329@gmail.com> <96fd1dc8-31ea-887b-3ea1-d742758935cd@isi.edu>
In-Reply-To: <96fd1dc8-31ea-887b-3ea1-d742758935cd@isi.edu>
Accept-Language: fr-FR, en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-exchange-transport-fromentityheader: Hosted
x-originating-ip: [10.228.216.10]
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Archived-At: <https://mailarchive.ietf.org/arch/msg/nfvrg/ll9m0rzUoWNcmsC5VNkiY3M3gpE>
X-Mailman-Approved-At: Wed, 02 Nov 2016 08:02:49 -0700
Cc: "Dongjie (Jimmy)" <jie.dong@huawei.com>, Mach Chen <mach.chen@huawei.com>
Subject: Re: [Nfvrg] [Detnet] [5gangip] Network Slicing - a suggestion that we meet to discuss in Seoul
X-BeenThere: nfvrg@irtf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: "Network Function Virtualization Research Group \(NFVRG\) discussion list" <nfvrg.irtf.org>
List-Unsubscribe: <https://www.irtf.org/mailman/options/nfvrg>, <mailto:nfvrg-request@irtf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/nfvrg/>
List-Post: <mailto:nfvrg@irtf.org>
List-Help: <mailto:nfvrg-request@irtf.org?subject=help>
List-Subscribe: <https://www.irtf.org/mailman/listinfo/nfvrg>, <mailto:nfvrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Wed, 02 Nov 2016 10:41:04 -0000

Looks correct, Joe, but then overlays as we traditionally see them do not necessarily provide the degree of isolation that we seem to be after here.

And this is where DetNet comes into play. At the extreme of the definition, a deterministic flow will traverse the network is such a fashion that the influence from other flows is not observable on that flow, e.g., no jitter and no congestion loss induced by other flows holding or clogging a link somewhere down in the fabric. Which means that one overlay will experience the same connectivity as if the nodes that compose it were physically meshed with serial wires. 

Cheers,

Pascal

-----Original Message-----
From: detnet [mailto:detnet-bounces@ietf.org] On Behalf Of Joe Touch
Sent: mardi 1 novembre 2016 23:35
To: Stewart Bryant <stewart.bryant@gmail.com>; 5gangip@ietf.org; detnet@ietf.org; nfvrg@irtf.org; draft-galis-anima-autonomic-slice-networking@ietf.org; draft-vonhugo-5gangip-ip-issues@ietf.org; draft-xuan-dmm-multicast-mobility-slicing@ietf.org; draft-ietf-teas-actn-framework@ietf.org
Cc: Dongjie (Jimmy) <jie.dong@huawei.com>; Mach Chen <mach.chen@huawei.com>
Subject: Re: [Detnet] [5gangip] Network Slicing - a suggestion that we meet to discuss in Seoul



On 11/1/2016 12:39 PM, Stewart Bryant wrote:
> Joe, we possibly have different ideas as to what network slicing is.
>
> My assumption is that it is a way that we can create multiple 
> virtually networks over a common base network with a higher degree of 
> isolation between VPNs and much higher performance guarantees than we 
> currently achieve.
>
> If we need a new name, we need a new name, but the concept does not 
> seem to align with the definition you hints at.

Right. That's because you're describing an overlay.

Overlays have varying degrees of isolation and performance (and isolation and performance assurance), and always have.

There's no new term needed for that.

Joe

_______________________________________________
detnet mailing list
detnet@ietf.org
https://www.ietf.org/mailman/listinfo/detnet

v2.23.0 | Report a Bug | By Email