Framework for Transport Network Slices
draft-nsdt-teas-ns-framework-04

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Last updated 2020-07-13
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Network Working Group                                       E. Gray, Ed.
Internet-Draft                                                  Ericsson
Intended status: Informational                             J. Drake, Ed.
Expires: 14 January 2021                                Juniper Networks
                                                            13 July 2020

                 Framework for Transport Network Slices
                    draft-nsdt-teas-ns-framework-04

Abstract

   This memo discusses setting up special-purpose transport connections
   using existing IETF technologies.  These connections are called
   transport slices for the purposes of this memo.  The memo discusses
   the general framework for this setup, the necessary system components
   and interfaces, and how abstract requests can be mapped to more
   specific technologies.  The memo also discusses related
   considerations with monitoring and security.

   This memo is intended for discussing interfaces and technologies.  It
   is not intended to be a new set of concrete interfaces or
   technologies.  Rather, it should be seen as an explanation of how
   some existing, concrete IETF VPN and traffic-engineering technologies
   can be used to create transport slices.  Note that there are a number
   of these technologies, and new technologies or capabilities keep
   being added.  This memo is also not intended presume any particular
   technology choice.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 14 January 2021.

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Internet-Draft      Transport Network Slice Framework          July 2020

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Simplified BSD License text
   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Transport Slice Objectives  . . . . . . . . . . . . . . . . .   4
   3.  Framework . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Management systems or other applications  . . . . . . . .   6
     3.2.  Expressing connectivity intents . . . . . . . . . . . . .   6
     3.3.  Transport Slice Controller (TSC)  . . . . . . . . . . . .   8
       3.3.1.  Northbound Interface (NBI)  . . . . . . . . . . . . .   9
     3.4.  Mapping . . . . . . . . . . . . . . . . . . . . . . . . .   9
     3.5.  Underlying technology . . . . . . . . . . . . . . . . . .   9
   4.  Applicability of ACTN to Transport Slices . . . . . . . . . .  10
   5.  Considerations  . . . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  Monitoring  . . . . . . . . . . . . . . . . . . . . . . .  12
     5.2.  Security Considerations . . . . . . . . . . . . . . . . .  13
     5.3.  Privacy Considerations  . . . . . . . . . . . . . . . . .  13
     5.4.  IANA Considerations . . . . . . . . . . . . . . . . . . .  13
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  13
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   This draft provides a framework for discussing transport slices, as
   defined in [I-D.nsdt-teas-transport-slice-definition] It is the
   intention in this document to use terminology consistent with this
   and other definitions provided in that draft.

   In particular, this document uses the following terminology defined
   in the definitions document:

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