ALTO-based Broker-assisted Multi-domain Orchestration
draft-lachosrothenberg-alto-brokermdo-00

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ALTO WG                                                        D. Lachos
Internet-Draft                                             C. Rothenberg
Intended status: Informational                                   Unicamp
Expires: September 6, 2018                                 March 5, 2018

         ALTO-based Broker-assisted Multi-domain Orchestration
                draft-lachosrothenberg-alto-brokermdo-00

Abstract

   Evolving networking scenarios (e.g., 5G) demand new multiple
   administrative domain (aka multi-domain) orchestration models.  This
   document proposes the use of Application-Layer Traffic Optimization
   (ALTO) services to offer topology and resources addressing network
   service discovery and provisioning by multi-domain orchestrators.
   The ALTO services with the proposed protocol extensions offer
   aggregated views on various types of resources contributing to a more
   simple and scalable solution for resource and service discovery in
   multi-domain, multi-technology environments.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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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   This Internet-Draft will expire on September 6, 2018.

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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
   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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Problem Statement and Challenges  . . . . . . . . . . . . . .   5
   5.  Proposed Approach . . . . . . . . . . . . . . . . . . . . . .   5
     5.1.  Inter-domain Resource (IdR) Component . . . . . . . . . .   6
     5.2.  Inter-domain Topology (IdT) Component . . . . . . . . . .   7
     5.3.  ALTO Server Functionalities . . . . . . . . . . . . . . .   7
     5.4.  Required ALTO Extensions  . . . . . . . . . . . . . . . .   7
       5.4.1.  Property Map Extensions . . . . . . . . . . . . . . .   7
       5.4.2.  Filtered Cost Map Extensions  . . . . . . . . . . . .   8
     5.5.  Examples of Message Exchange  . . . . . . . . . . . . . .  10
       5.5.1.  Property Map Service  . . . . . . . . . . . . . . . .  10
       5.5.2.  Filtered Cost Map Service . . . . . . . . . . . . . .  11
   6.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  14
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  15
     9.3.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
   Appendix A.  Proof of Concept Use Case Implementation . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

   Envisioned 5G network architectures and related service models
   consider broader cooperation between stakeholders in order to provide
   flexible multi-operator multi-domain services.  These multi-provider
   orchestration operations will require the information exchange across
   Multi-domain Orchestrators (MdOs).  The key information to be

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