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Tue, 17 Sep 2024 14:13:46 +0000 From: "Samier Barguil Giraldo (Nokia)" To: TEAS WG Thread-Topic: Comments Regarding the Proposed Merge of draft-barguil-teas-network-slices-instantation Thread-Index: AQHbCQvPxglFKRNsLEakMeiS1j4OLQ== Date: Tue, 17 Sep 2024 14:13:46 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nokia.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: AM0PR07MB4083:EE_|PR3PR07MB6988:EE_ x-ms-office365-filtering-correlation-id: 9ff21220-e70c-48bf-883a-08dcd722f1ad x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0;ARA:13230040|366016|1800799024|376014|38070700018; x-microsoft-antispam-message-info: =?us-ascii?Q?iD3REnO515uQHfuCgWO7kJc/rTQaTvivxZTIPEph8I3j8Huh1QAp8DaLth6f?= =?us-ascii?Q?1SH7z0FExnP/42QEJFIzPPXZhDr7iAb8H6KLFR6Uw0DbdxEQXxxycdIaqRty?= =?us-ascii?Q?tIduXISdw/YrjRNkJCwAV1FWDDiu3AbFxVUE9+wmCqI6Hdb17HAqKhQgE687?= =?us-ascii?Q?FyBQnzJJkYqfGr7O33Tbq9yoO7hWNhej0bRdyzlIik52oS4jXh5OWb9zqXGg?= =?us-ascii?Q?Y1WIcZLIE8IL5Iui9nTtisrwLGYpSZV5GAvt6RnFVeaySaIWBLjyUBAO0hcQ?= =?us-ascii?Q?/ubW3S1kqCVxA7Bb3rnl5rWpHnxc92NK6mozhCElirZlwjNJcX0foAYr8PkW?= =?us-ascii?Q?oi3WOJO50jt/ye3luE3gikmFqbTKsiMckODx2WOsDS02MjugZxbLSsa+VScm?= =?us-ascii?Q?Zg7mqo1131OS7uwferikFMQrlxwKrNMUxHx+S/ixla1+n9NQEaJAgbHOE1l2?= =?us-ascii?Q?ZHvaP4tubwqsD/Cr+prR0U6AkgXLZw7rTxTlw1eQs5A6aGntgb2G3gmIoEUU?= =?us-ascii?Q?ouvLr1z4QZDBhsGtveECYsEGBhLSaXeyQ0bJe/IQpbewT7VgrPfJyOMTfcax?= =?us-ascii?Q?+jZJ/Qhuzxw3Keec0hkII4ZmdNnZ4QFwU1xFXJFDlYEHwNQ51O9eiev67tMW?= =?us-ascii?Q?Q8U6MNaJVdlbE8U8gOOjuQRkDggIB/J4cYkI9ZqTr2Va6FDy4Lx99vzemTJ9?= =?us-ascii?Q?1wUUj25zJBZ3WqhxJCKiD520IR0xrjUfSGHrhSd+rIrVBDx68iX6CQygZO/j?= =?us-ascii?Q?500x27Q04tv7cnzzDFqA/t/qLrFSYyndalAK71jaBr69rqtmL+5Qz07m86eW?= =?us-ascii?Q?GrSVMWCDrNO8uQxmOujldn0kXiXUJAvthEzfb15b/oZvgrNPuSjzbSV4a9BM?= =?us-ascii?Q?LlAQWThvJVu9kTAe4F5TC3ItHxsxO88LrGDnUA+6E62lBtvaQ7riwRvBp67g?= =?us-ascii?Q?O5dRPf0j5ZCFMYxJ6Esw12HDLVc1WluPB0s48WYDMAUxwmyeRBi9lzfTIyoC?= =?us-ascii?Q?mvCLez/6zHZ2M1eSvmLwqDRey9vwVWcMqbbIPMLQmhP2U2UlRkmVZMkYuMBu?= =?us-ascii?Q?lPhlwSkWggwdheJ4hNQWiHXRVaDZgim4NbsbVUW1CL0glIpHiYvW47hk6Myh?= =?us-ascii?Q?R6xR14nbxXeKxkNQXneOkzlg9WFPFO+Z4Z6Wj8eQ2vwnVd5D/og36ByjAXCv?= =?us-ascii?Q?ThKu+vN2qFObawc627/iimba7Jse7JXeHepeQhnZ3Dt7C6q2zXV31VpCZGjs?= =?us-ascii?Q?D4mAdAAGvpl4dQKZOSEfacPmPc96nT1CWBTxyG6PL//zW7f3Wrs4LleVoOjX?= =?us-ascii?Q?shbKcmcNYxGx2D09SPfEBS2peUHGBwMguGEEfnOT33F2SQ=3D=3D?= x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR07MB4083.eurprd07.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(376014)(38070700018);DIR:OUT;SFP:1101; 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boundary="_000_AM0PR07MB408399DADE62F91405CFBE19BB612AM0PR07MB4083eurp_" MIME-Version: 1.0 X-OriginatorOrg: nokia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM0PR07MB4083.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9ff21220-e70c-48bf-883a-08dcd722f1ad X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Sep 2024 14:13:46.3281 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: wJTMJuEX4uZS83fEFILioFBaa6gXAOf11IpiKMie8YcB8i+0+jbuwTR3rJ6MRnl2L4/cAaG37BA1uoZM/R/k4XHed5NDUK1qPGOnA38TPZnb95Y70Duu1cDtHOjVtLNm X-MS-Exchange-Transport-CrossTenantHeadersStamped: PR3PR07MB6988 Message-ID-Hash: 3O6E7FU6RRG5P76IOXUT2NTSKVKBSRJJ X-Message-ID-Hash: 3O6E7FU6RRG5P76IOXUT2NTSKVKBSRJJ X-MailFrom: samier.barguil_giraldo@nokia.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-teas.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: "draft-barguil-teas-network-slices-instantation@ietf.org" X-Mailman-Version: 3.3.9rc4 Precedence: list Subject: =?utf-8?q?=5BTeas=5D_Comments_Regarding_the_Proposed_Merge_of_draft-barguil-?= =?utf-8?q?teas-network-slices-instantation?= List-Id: Traffic Engineering Architecture and Signaling working group discussion list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --_000_AM0PR07MB408399DADE62F91405CFBE19BB612AM0PR07MB4083eurp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Dear TEAS WG, I hope this message finds you well. I am writing to share my comments regar= ding the recent proposal to merge our draft, draft-barguil-teas-network-sli= ces-instantation, with draft-ietf-teas-ns-controller-models. While I apprec= iate the intent behind the proposal, I would like to highlight several reas= ons why merging these two drafts may not be helping achieve intended object= ives, and to emphasize the unique value our draft provides. Why Merging Is Not Beneficial 1. Different Scope and Focus: Our draft, draft-barguil-teas-network-slic= es-instantation, has been under development since 2021 and provides detaile= d guidance on the implementation of a Network Slices in service provider ne= tworks. The core focus of our draft is to analyze the practical impact of n= etwork slice instantiation on the realization of services and the mapping o= f slice constraints to service and network models. It goes parameter by par= ameter, examining how these parameters influence slice implementation and p= roviding options for translating the intended slice requests into operation= al services. In contrast, draft-ietf-teas-ns-controller-models is a newer d= raft that describes a high-level functional division of the NSC and referen= ces data models for supporting network slice services. While it is a promis= ing document, it is more abstract and primarily aimed at outlining the pote= ntial architecture of the NSC rather than the detailed implementation and r= ealization aspects that our draft covers. 2. Depth of Analysis in Model Usage: One of the strengths of our draft i= s the detailed examination of how service and network models are used to en= sure that slice constraints are met. We explore multiple mapping options fo= r various parameters, providing granular insights that are crucial for the = practical implementation of network slices. This level of depth would be di= fficult to preserve in a merged document without compromising the unique co= ntributions and utility of each draft. The Value Provided by draft-barguil-teas-network-slices-instantiation * Practical Implementation Guidance: Our draft offers concrete guidance= on how service providers can implement NSCs, focusing on how the intended = slice requests are translated into service and network models. This is part= icularly valuable for operators who need actionable insights into how to de= ploy slices in their networks, considering real-world constraints and chall= enges. * Detailed Parameter-by-Parameter Mapping: We delve into the specific p= arameters of network slice requests and provide analysis on how these can b= e mapped to the underlying network infrastructure. This granular level of a= nalysis is essential for ensuring that the network slice constraints are me= t in practice. * Impact on Service Realization: By closely examining how different mod= els interact during network slice instantiation, our draft helps operators = understand the potential impact on service realization, which is a critical= aspect of network slicing. In summary, while both drafts contribute to the broader discussion of netwo= rk slice controllers, they serve different purposes and target different la= yers of abstraction. Merging them could dilute the unique value that each d= raft provides. We believe that keeping the drafts separate will allow each to evolve in a = way that best serves the needs of the working group and the broader communi= ty. I appreciate your time and consideration of these points, and I look forwar= d to further discussions on how we can continue to refine and improve our c= ontributions to the TEAS WG. Best regards, Samier Barguil --_000_AM0PR07MB408399DADE62F91405CFBE19BB612AM0PR07MB4083eurp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Dear TEAS WG,=

 =

I hope this message find= s you well. I am writing to share my comments regarding the recent proposal= to merge our draft, draft-barguil-teas-network-slices-instantation, with draft-ietf-t= eas-ns-controller-models. While I appreciate the intent behind the prop= osal, I would like to highlight several reasons why merging these two draft= s may not be helping achieve intended objectives, and to emphasize the unique value our draft provides.

 

Why Merging Is Not Be= neficial

 

  1. Di= fferent Scope and Focus: Our draft, draft-barguil-teas-network-slices-instantation, has been under devel= opment since 2021 and provides detailed guidance on the implementation of a= Network Slices in service provider networks. The core focus of our draft i= s to analyze the practical impact of network slice instantiation on the realization of services and the mapp= ing of slice constraints to service and network models. It goes parameter b= y parameter, examining how these parameters influence slice implementation = and providing options for translating the intended slice requests into operational services. In contrast, dra= ft-ietf-teas-ns-controller-models is a newer draft that describes a hig= h-level functional division of the NSC and references data models for suppo= rting network slice services. While it is a promising document, it is more abstract and primarily aimed at out= lining the potential architecture of the NSC rather than the detailed imple= mentation and realization aspects that our draft covers.
    2. Depth= of Analysis in Model Usage: One of the strengths of our draft is the d= etailed examination of how service and network models are used to ensure th= at slice constraints are met. We explore multiple mapping options for various parameters, providing granula= r insights that are crucial for the practical implementation of network sli= ces. This level of depth would be difficult to preserve in a merged documen= t without compromising the unique contributions and utility of each draft.

 

The Value Provided by= draft-barguil-teas-network-slices-instantiation

 

  • Pr= actical Implementation Guidance: Our draft offers concrete guidance on = how service providers can implement NSCs, focusing on how the intended slic= e requests are translated into service and network models. This is particularly valuable for operators who need a= ctionable insights into how to deploy slices in their networks, considering= real-world constraints and challenges.
  • Detailed Parameter-by-= Parameter Mapping: We delve into the specific parameters of network sli= ce requests and provide analysis on how these can be mapped to the underlyi= ng network infrastructure. This granular level of analysis is essential for ensuring that the network= slice constraints are met in practice.
  • Impact on Service Real= ization: By closely examining how different models interact during netw= ork slice instantiation, our draft helps operators understand the potential= impact on service realization, which is a critical aspect of network slicing.

 =

In summary, while both d= rafts contribute to the broader discussion of network slice controllers, th= ey serve different purposes and target different layers of abstraction. Mer= ging them could dilute the unique value that each draft provides.

We believe that keeping = the drafts separate will allow each to evolve in a way that best serves the= needs of the working group and the broader community.

 =

I appreciate your time a= nd consideration of these points, and I look forward to further discussions= on how we can continue to refine and improve our contributions to the TEAS= WG.

 =

Best regards,=

 

Samie= r Barguil

 

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