Re: [Teas] Liaison to 3GPP about IETF Network Slices

[John Scudder <[e-mail]>]

Hi Pavan,

Thanks for the work on this. Now that Adrian’s published version 25 of the framework, I have one further comment. The change in nomenclature suggests a small change in the wording of the liaison —

OLD:
It defines the term "IETF Network Slice" to describe this type of network slice, and establishes the  general principles of network slicing in the IETF context.

NEW:
It establishes the general principles of network slicing in the IETF context.

(I also removed the extra whitespace between “the” and “general” :-) 

—John

> On Sep 12, 2023, at 7:45 AM, Vishnu Pavan Beeram <[e-mail]> wrote:
> 
> Thanks to all who responded on this thread! 
> 
> We have updated the liaison statement to include references to all relevant WG documents (please see updated text below). The suggestion to send a similar liaison to GSMA and O-RAN is also noted.
> 
> Regards,
> -Pavan, Lou and Oscar
> 
> **
> The IETF TEAS WG (https://datatracker.ietf.org/wg/teas/about/) would like to inform 3GPP about “A Framework for Network Slices in Networks Built from IETF Technologies” (https://datatracker.ietf.org/doc/html/draft-ietf-teas-ietf-network-slices), an informational document that has been submitted to the IESG for publication. This document describes network slicing in the context of networks built from IETF technologies.  It defines the term "IETF Network Slice" to describe this type of network slice, and establishes the  general principles of network slicing in the IETF context.
>  
> The IETF TEAS WG would also like to inform 3GPP about the following network slicing related documents (in no particular order of relevance) that have been adopted by the WG and are currently going through normal WG process:
> 	• IETF Network Slice Application in 3GPP 5G End-to-End Network Slice (https://datatracker.ietf.org/doc/html/draft-ietf-teas-5g-network-slice-application): This informational document describes the application of the IETF network slice framework in providing 5G end-to-end network slices, including network slice mapping in management plane, control plane and data plane.
> 	• A YANG Data Model for the IETF Network Slice Service (https://datatracker.ietf.org/doc/html/draft-ietf-teas-ietf-network-slice-nbi-yang): This document defines a YANG data model for the IETF Network Slice Service
> 	• Applicability of Abstraction and Control of Traffic Engineered Networks (ACTN) to Network Slicing (https://datatracker.ietf.org/doc/html/draft-ietf-teas-applicability-actn-slicing): This informational document outlines the applicability of ACTN to network slicing in a Traffic Engineered network that utilizes IETF technologies.
> 	• A Realization of IETF Network Slices for 5G Networks Using Current IP/MPLS Technologies (https://datatracker.ietf.org/doc/html/draft-ietf-teas-5g-ns-ip-mpls): This document describes a basic IETF Network Slice realization model in IP/MPLS networks with a focus on the Transport Network fulfilling 5G slicing connectivity requirements. This realization model reuses many building blocks currently used in service provider networks. 
> 	• Realizing Network Slices in IP/MPLS Networks (https://datatracker.ietf.org/doc/html/draft-ietf-teas-ns-ip-mpls): This document describes a solution to realize network slicing in IP/MPLS networks using Network Resource Partitions (NRPs). It introduces the notion of a Slice-Flow Aggregate which comprises one or more IETF network slice traffic streams and describes the NRP Policy that can be used to instantiate control and data plane behaviors on select topological elements associated with the NRP that supports a Slice-Flow Aggregate.
> 	• A Framework for Enhanced Virtual Private Network (VPN+) (https://datatracker.ietf.org/doc/html/draft-ietf-teas-enhanced-vpn):  This document describes the framework for Enhanced Virtual Private Network (VPN+) to support the needs of applications with specific traffic performance requirements. VPN+ leverages the VPN and Traffic Engineering (TE) technologies and adds characteristics that specific services require beyond those provided by conventional VPNs. Typically, VPN+ will be used to underpin network slicing, but could also be of use in its own right providing enhanced connectivity services between customer sites. 
> 	• IETF Network Slice Use Cases and Attributes for the Slice Service Interface of IETF Network Slice Controllers (https://datatracker.ietf.org/doc/html/draft-ietf-teas-ietf-network-slice-use-cases): This document analyzes the needs of potential customers of network slices realized with IETF techniques in several use cases and identifies the functionalities for the IETF Network Slice Service Interface of an IETF Network Slice Controller to satisfy such requests.
> The following is the mailing list where discussions related to these documents take place: https://www.ietf.org/mailman/listinfo/teas. 
> Feedback on the documents can be shared directly on the mailing list.
> ***
> 
> On Wed, Sep 6, 2023 at 6:06 PM Vishnu Pavan Beeram <[e-mail]> wrote:
> WG,
> 
> Now that we are about to publish the framework for network slicing in networks built from IETF technologies, we would like to send a formal liaison to 3GPP and inform them about it (Thanks to our AD and Technical Advisor for bringing this up!). 
> 
> Please find below the initial draft of the statement. Please review and let us know if there are any concerns.
> 
> Regards,
> - Pavan, Lou and Oscar
> 
> **
> The IETF TEAS WG (https://datatracker.ietf.org/wg/teas/about/) would like to inform 3GPP about “A Framework for Network Slices in Networks Built from IETF Technologies” (https://datatracker.ietf.org/doc/html/draft-ietf-teas-ietf-network-slices), an informational document that has been submitted to the IESG for publication. This document describes network slicing in the context of networks built from IETF technologies.  It defines the term "IETF Network Slice" to describe this type of network slice, and establishes the  general principles of network slicing in the IETF context.
>  
> The IETF TEAS WG would also like to inform 3GPP about “IETF Network Slice Application in 3GPP 5G End-to-End Network Slice” (https://datatracker.ietf.org/doc/html/draft-ietf-teas-5g-network-slice-application),  an informational document that has been adopted by the WG and is currently going through normal WG process. This document describes the application of the IETF network slice framework in providing 5G end-to-end network slices, including  network slice mapping in management plane, control plane and data plane.
> 
> The following is the mailing list where discussions related to these documents take place:
> https://www.ietf.org/mailman/listinfo/teas
> Feedback on the documents can be shared directly on the mailing list.
> **
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