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

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 <vishnupavan@gmail.com>
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.
>
> **
>