Applicability of Abstraction and Control of Traffic Engineered Networks (ACTN) to TE Network Slicing
draft-king-teas-applicability-actn-slicing-07

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TEAS Working Group                                               D. King
Internet-Draft                                        Old Dog Consulting
Intended status: Informational                                  J. Drake
Expires: February 11, 2021                              Juniper Networks
                                                                H. Zheng
                                                      Huwei Technologies
                                                         August 10, 2020

Applicability of Abstraction and Control of Traffic Engineered Networks
                      (ACTN) to TE Network Slicing
             draft-king-teas-applicability-actn-slicing-07

Abstract

   Network abstraction is a technique that can be applied to a network
   domain that utilizes a set of policies to select network resources
   and obtain a view of potential connectivity across the network.

   Network slicing is an approach to network operations that builds on
   the concept of network abstraction to provide programmability,
   flexibility, and modularity.  It may use techniques such as Software
   Defined Networking (SDN) and Network Function Virtualization (NFV) to
   create multiple logical or virtual networks, each tailored for a set
   of services share the same set of requirements.

   Abstraction and Control of Traffic Engineered Networks (ACTN) is
   described in RFC 8453.  It defines an SDN-based architecture that
   relies on the concept of network and service abstraction to detach
   network and service control from the underlying data plane.

   This document outlines the applicability of ACTN to transport network
   slicing in a Traffic Engineering (TE) network that utilizes IETF
   technology.  It also identifies the features of network slicing not
   currently within the scope of ACTN, and indicates where ACTN might be
   extended.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

King, et al.            Expires February 11, 2021               [Page 1]
Internet-Draft          ACTN and Network Slicing             August 2020

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
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   This Internet-Draft will expire on February 11, 2021.

Copyright Notice

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Requirements for Network Slicing  . . . . . . . . . . . . . .   5
     2.1.  Resource Slicing  . . . . . . . . . . . . . . . . . . . .   6
     2.2.  Service Isolation . . . . . . . . . . . . . . . . . . . .   6
     2.3.  Network Virtualization  . . . . . . . . . . . . . . . . .   6
     2.4.  Control and Orchestration . . . . . . . . . . . . . . . .   7
   3.  Abstraction and Control of Traffic Engineered (TE) Networks
       (ACTN)  . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.1.  ACTN Virtual Network as a Network Slice . . . . . . . . .   8
     3.2.  Examples of ACTN Delivering Types of Network Slices . . .   9
       3.2.1.  ACTN Used for Virtual Private Line Model  . . . . . .   9
       3.2.2.  ACTN Used for VPN Delivery Model  . . . . . . . . . .  10
       3.2.3.  ACTN Used to Deliver a Virtual Consumer Network . . .  11
       3.2.4.  Network Slice Service Mapping from TE to ACTN VN
               Models  . . . . . . . . . . . . . . . . . . . . . . .  12
     3.3.  ACTN VN Telemetry . . . . . . . . . . . . . . . . . . . .  13
   4.  Transport Slice NBI Model . . . . . . . . . . . . . . . . . .  14
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
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