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NFVRG                                             P. Martinez-Julia, Ed.
Internet-Draft                                                      NICT
Intended status: Informational                                2 20, 2018
Expires: August 24, 2018


Exploiting External Event Detectors to Anticipate Resource Requirements
             for the Elastic Adaptation of SDN/NFV Systems
                 draft-pedro-anticipated-adaptation-00

Abstract

   The adoption of SDN/NFV technologies by current computer and network
   system infrastructures is constantly increasing, becoming essential
   for the the particular case of edge/branch network systems.  The
   systems supported by these infrastructures require to be adapted to
   environment changes within a short period of time.  Thus, the
   complexity of new systems and the speed at which management and
   control operations must be performed go beyond human limits.  Thus,
   management systems must be automated.  However, in several situations
   current automation techniques are not enough to respond to
   requirement changes.  Here we propose to anticipate changes in the
   operation environments of SDN/NFV systems in response to external
   events and reflect it in the anticipation of the amount of resources
   required by those systems for their ulterior adaptaion.  The final
   objective is to avoid service degradation or disruption while keeping
   close-to-optimum resource allocation to reduce monetary and operative
   cost as much as possible.  Here we discuss how to achieve such
   capabilities by the integration of the Autonomic Resource Control
   Architecture (ARCA) to the management and operation (MANO) of NFV
   systems.  We showcase it by building a multi-domain SDN/NFV
   infrastructure based on OpenStack and deploying ARCA to adapt a
   virtual system based on the edge/branch network concept to the
   operational conditions of an emergency support service, which is
   rarely used but that cannot leave any user unattended.

Status of This Memo

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   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on August 24, 2018.

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
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   carefully, as they describe your rights and restrictions with respect
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   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Virtual Computer and Network Systems  . . . . . . . . . .   4
     3.2.  SDN and NFV . . . . . . . . . . . . . . . . . . . . . . .   5
     3.3.  Management and Control  . . . . . . . . . . . . . . . . .   5
     3.4.  The Autonomic Resource Control Architecture (ARCA)  . . .   6
   4.  External Event Detectors  . . . . . . . . . . . . . . . . . .   7
   5.  Anticipating Requirements . . . . . . . . . . . . . . . . . .   8
   6.  ARCA Integration With ETSI-NFV-MANO . . . . . . . . . . . . .   8
     6.1.  Functional Integration  . . . . . . . . . . . . . . . . .   9
     6.2.  Target Experiment and Scenario  . . . . . . . . . . . . .  11
     6.3.  OpenStack Platform  . . . . . . . . . . . . . . . . . . .  13
     6.4.  Initial Results . . . . . . . . . . . . . . . . . . . . .  14
   7.  Relation to Other IETF/IRTF Initiatives . . . . . . . . . . .  17
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  17
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  18
     11.2.  Informative References . . . . . . . . . . . . . . . . .  18
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  19







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