[Teas] I-D Action: draft-ietf-teas-composite-network-slices-00.txt

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Internet-Draft draft-ietf-teas-composite-network-slices-00.txt is now
available. It is a work item of the Traffic Engineering Architecture and
Signaling (TEAS) WG of the IETF.

   Title:   Realization of Composite IETF Network Slices
   Authors: Zhenbin Li
            Jie Dong
            Ran Pang
            Yongqing Zhu
            Luis M. Contreras
   Name:    draft-ietf-teas-composite-network-slices-00.txt
   Pages:   15
   Dates:   2026-03-14

Abstract:

   A network slice offers connectivity services to a network slice
   customer with specific Service Level Objectives (SLOs) and Service
   Level Expectations (SLEs) over a common underlay network.  RFC 9543
   describes a framework for network slices built in networks that use
   IETF technologies.  As part of that framework, the Network Resource
   Partition (NRP) is introduced as a collection of network resources
   that are allocated from the underlay network to carry a specific set
   of network slice service traffic and meet specific SLOs and SLEs.  In
   some network scenarios, network slices using IETF technologies may
   span multiple network domains, and they may be composed
   hierarchically, which means a network slice itself may be further
   sliced.  In the context of 5G, a 5G end-to-end network slice consists
   of three different types of network technology segments: Radio Access
   Network (RAN), Transport Network (TN) and Core Network (CN).  The
   transport segments of the 5G end-to-end network slice can be provided
   using network slices described in RFC 9543.

   This document first describes the possible use cases of composite
   network slices built in networks that use IETF network technologies,
   then it provides considerations about the realization of composite
   network slices.  For the multi-domain network slices, an Inter-Domain
   Network Resource Partition Identifier (Inter-domain NRP ID) may be
   introduced.  For hierarchical network slices, the structure of the
   NRP ID is discussed.  And for the interaction between IETF network
   slices with 5G network slices, the identifiers of the 5G network
   slices may be introduced into IETF networks.  These network slice-
   related identifiers may be used in the data plane, control plane and
   management plane of the network for the instantiation and management
   of composite network slices.  This document also describes the
   management considerations of composite network slices.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-composite-network-slices/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-teas-composite-network-slices-00

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts