Multi-domain Network Virtualization
draft-bernardos-nfvrg-multidomain-05

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Last updated 2018-09-03
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NFV RG                                                CJ. Bernardos, Ed.
Internet-Draft                                                      UC3M
Intended status: Informational                             LM. Contreras
Expires: March 7, 2019                                               TID
                                                            I. Vaishnavi
                                                                  Huawei
                                                                R. Szabo
                                                                Ericsson
                                                              J. Mangues
                                                                    CTTC
                                                                   X. Li
                                                                     NEC
                                                             F. Paolucci
                                                          A. Sgambelluri
                                                              B. Martini
                                                          L. Valcarenghi
                                                                    SSSA
                                                                G. Landi
                                                               Nextworks
                                                            D. Andrushko
                                                                MIRANTIS
                                                               A. Mourad
                                                            InterDigital
                                                       September 3, 2018

                  Multi-domain Network Virtualization
                  draft-bernardos-nfvrg-multidomain-05

Abstract

   This document analyzes the problem of multi-provider multi-domain
   orchestration, by first scoping the problem, then looking into
   potential architectural approaches, and finally describing the
   solutions being developed by the European 5GEx and 5G-TRANSFORMER
   projects.

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
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

Bernardos, et al.         Expires March 7, 2019                 [Page 1]
Internet-Draft     Multi-domain Network Virtualization    September 2018

   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on March 7, 2019.

Copyright Notice

   Copyright (c) 2018 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
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Background: the ETSI NFV
       architecture  . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Multi-domain problem statement  . . . . . . . . . . . . . . .   8
   5.  Multi-domain architectural approaches . . . . . . . . . . . .   9
     5.1.  ETSI NFV approaches . . . . . . . . . . . . . . . . . . .   9
     5.2.  Hierarchical  . . . . . . . . . . . . . . . . . . . . . .  17
     5.3.  Cascading . . . . . . . . . . . . . . . . . . . . . . . .  20
   6.  Virtualization and Control for Multi-Provider Multi-Domain  .  20
     6.1.  Interworking interfaces . . . . . . . . . . . . . . . . .  22
     6.2.  5GEx Multi Architecture . . . . . . . . . . . . . . . . .  23
     6.3.  5G-TRANSFORMER Architecture . . . . . . . . . . . . . . .  26
       6.3.1.  So-Mtp Interface (IF3)  . . . . . . . . . . . . . . .  28
       6.3.2.  So-So Interface (IF2) . . . . . . . . . . . . . . . .  29
       6.3.3.  Vs-So Interface (IF1) . . . . . . . . . . . . . . . .  30
   7.  Multi-domain orchestration and Open Source  . . . . . . . . .  31
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  32
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