IETF Logo Mail Archive

Re: [Teas] "Hierarchical T-SDN Controller"

"Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com> Wed, 19 July 2017 08:41 UTC

Return-Path: <michael.scharf@nokia.com>
X-Original-To: teas@ietfa.amsl.com
Delivered-To: teas@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 60A31131C3E for <teas@ietfa.amsl.com>; Wed, 19 Jul 2017 01:41:10 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.7
X-Spam-Level:
X-Spam-Status: No, score=-4.7 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-2.8, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham 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 OOwSHuyynqUu for <teas@ietfa.amsl.com>; Wed, 19 Jul 2017 01:41:08 -0700 (PDT)
Received: from EUR03-AM5-obe.outbound.protection.outlook.com (mail-eopbgr30102.outbound.protection.outlook.com [40.107.3.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 37574131C32 for <teas@ietf.org>; Wed, 19 Jul 2017 01:41:08 -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=1lLVM4UqJH+P0C0747H3Y2VO6rLRLHz7+NUbA4mAbhY=; b=MtBklAhaWH4bSNIAu57RB+WH8mRNPzfVumB6rkhG95sYwjHBkAXghrjBJcfPpC2hNt1ZnjfLzkb7ugaSQaZrsgRkfZOJSo3NIx+SDHbPz+ZwxP/NAJ78/FNZBctrbFwnhX7QsMSHHe8TSpHGRBy/fo1tPM7I+8c3uTu0kJUTIa8=
Received: from AM5PR0701MB2547.eurprd07.prod.outlook.com (10.173.92.15) by AM5PR0701MB2484.eurprd07.prod.outlook.com (10.169.153.140) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1282.4; Wed, 19 Jul 2017 08:41:06 +0000
Received: from AM5PR0701MB2547.eurprd07.prod.outlook.com ([fe80::b4f5:bfaf:bef6:e736]) by AM5PR0701MB2547.eurprd07.prod.outlook.com ([fe80::b4f5:bfaf:bef6:e736%17]) with mapi id 15.01.1282.011; Wed, 19 Jul 2017 08:41:06 +0000
From: "Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com>
To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>, TEAS WG <teas@ietf.org>
Thread-Topic: "Hierarchical T-SDN Controller"
Thread-Index: AdMAY31MhKwsTD/KSDOTWzU1Cn4gEgABBRRgAABvEYA=
Date: Wed, 19 Jul 2017 08:41:06 +0000
Message-ID: <AM5PR0701MB25474975CE920C7002DEB29B93A60@AM5PR0701MB2547.eurprd07.prod.outlook.com>
References: <AM5PR0701MB25472B2B1574786C4C4FF12E93A60@AM5PR0701MB2547.eurprd07.prod.outlook.com> <AM2PR07MB099427639587A98BA6E36061F0A60@AM2PR07MB0994.eurprd07.prod.outlook.com>
In-Reply-To: <AM2PR07MB099427639587A98BA6E36061F0A60@AM2PR07MB0994.eurprd07.prod.outlook.com>
Accept-Language: en-US, de-DE
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
authentication-results: ericsson.com; dkim=none (message not signed) header.d=none;ericsson.com; dmarc=none action=none header.from=nokia.com;
x-originating-ip: [135.245.212.17]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1; AM5PR0701MB2484; 7: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
x-ms-office365-filtering-correlation-id: e7481720-d707-4f03-2ed4-08d4ce81e57b
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: UriScan:; BCL:0; PCL:0; RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(2017030254075)(48565401081)(300000503095)(300135400095)(2017052603031)(201703131423075)(201703031133081)(300000504095)(300135200095)(300000505095)(300135600095)(300000506095)(300135500095); SRVR:AM5PR0701MB2484;
x-ms-traffictypediagnostic: AM5PR0701MB2484:
x-exchange-antispam-report-test: UriScan:(151999592597050)(37575265505322)(26388249023172)(236129657087228)(82608151540597)(148574349560750)(21748063052155)(247924648384137)(17755550239193);
x-microsoft-antispam-prvs: <AM5PR0701MB24849AD00BB519FDA111034F93A60@AM5PR0701MB2484.eurprd07.prod.outlook.com>
x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(6040450)(601004)(2401047)(5005006)(8121501046)(2017060910075)(93006095)(93001095)(100000703101)(100105400095)(10201501046)(3002001)(6055026)(6041248)(20161123564025)(20161123555025)(20161123562025)(20161123558100)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123560025)(6072148)(100000704101)(100105200095)(100000705101)(100105500095); SRVR:AM5PR0701MB2484; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:AM5PR0701MB2484;
x-forefront-prvs: 0373D94D15
x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(39860400002)(39450400003)(39850400002)(39400400002)(39840400002)(39410400002)(377454003)(52314003)(8676002)(5250100002)(6436002)(74316002)(229853002)(81166006)(33656002)(2906002)(6506006)(2950100002)(54356999)(53546010)(14454004)(3660700001)(7696004)(5660300001)(3280700002)(8936002)(6246003)(2900100001)(7736002)(38730400002)(478600001)(66066001)(99286003)(55016002)(53936002)(76176999)(9686003)(25786009)(54896002)(189998001)(6306002)(86362001)(236005)(6116002)(102836003)(19609705001)(790700001)(3846002)(50986999); DIR:OUT; SFP:1102; SCL:1; SRVR:AM5PR0701MB2484; H:AM5PR0701MB2547.eurprd07.prod.outlook.com; FPR:; SPF:None; MLV:sfv; LANG:en;
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: multipart/alternative; boundary="_000_AM5PR0701MB25474975CE920C7002DEB29B93A60AM5PR0701MB2547_"
MIME-Version: 1.0
X-OriginatorOrg: nokia.com
X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Jul 2017 08:41:06.1147 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0
X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0701MB2484
Archived-At: <https://mailarchive.ietf.org/arch/msg/teas/MXOXCWIU2CI2LFw29sUDHqAvGDQ>
Subject: Re: [Teas] "Hierarchical T-SDN Controller"
X-BeenThere: teas@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Traffic Engineering Architecture and Signaling working group discussion list <teas.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/teas>, <mailto:teas-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/teas/>
List-Post: <mailto:teas@ietf.org>
List-Help: <mailto:teas-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/teas>, <mailto:teas-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 19 Jul 2017 08:41:10 -0000

Well, the IETF has an area called "TSV" and so in the IETF "transport" has yet another meaning ;-)

Given that, such terminology would have to be defined in IETF documents anyway. A definition of these terms could clarify the meaning for MPLS-TE and SR-TE.

Anyway, my key point is that I think the terminology used by draft-bryskin-te-topo-and-tunnel-modeling-00 is easy to understand by people outside the IETF.

Michael



From: Daniele Ceccarelli [mailto:daniele.ceccarelli@ericsson.com]
Sent: Wednesday, July 19, 2017 10:28 AM
To: Scharf, Michael (Nokia - DE/Stuttgart) <michael.scharf@nokia.com>; TEAS WG <teas@ietf.org>
Subject: RE: "Hierarchical T-SDN Controller"

+1 , BUT...

We need to be careful with the word "transport". In some contexts it refers to pure transport technologies (e.g. OTN, WDM) and does not include other upper layer TE technologies (e.g. MPLS-TE and SR-TE), in other contexts it includes also the latter.
I'm more than happy to use the term transport SDN controller provided we're all on the same page (which should be the second).

BR
Daniele



From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Scharf, Michael (Nokia - DE/Stuttgart)
Sent: mercoledì 19 luglio 2017 10:01
To: TEAS WG <teas@ietf.org<mailto:teas@ietf.org>>
Subject: [Teas] "Hierarchical T-SDN Controller"

In the (useful) I-D draft-bryskin-te-topo-and-tunnel-modeling-00, Section 1.9. "Multi-Domain Transport Service Coordination" uses the following wording:

   A client of multiple TE network domains may need to
   orchestrate/coordinate its transport service setup/manipulation
   across some or all the domains. One example of such a client is a
   Hierarchical T-SDN Controller, HC, managing a connected multi-domain
   transport network where each of the domains is controlled by a
   separate Domain T-SDN Controller, DC.

Outside the IETF, I have the impression that this terminology is quite common when discussing TEAS YANG models. I wonder whether we could use this terminology more frequently inside in TEAS.

Michael

v2.23.0 | Report a Bug | By Email