Use Cases and Analysis on Integrated NFV and Network Optimization
draft-veitch-nfvrg-nfv-nw-optimization-00

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Internet Engineering Task Force                           A. Veitch, Ed.
Internet-Draft                                          Netcracker, Inc.
Intended status: Informational                         November 30, 2016
Expires: June 3, 2017

   Use Cases and Analysis on Integrated NFV and Network Optimization
               draft-veitch-nfvrg-nfv-nw-optimization-00

Abstract

   This is a review of issues related to the optimized deployment of
   network services, aka service function chains, composed of virtual
   and physical network functions, where these functions may be
   instantiated in multiple distributed data centers.  Criteria for
   optimization are introduced, and use cases are described and
   expanded, in order to establish the need for coordinated computation
   of NF deployment sites and the connectivity among them.  Some methods
   for addressing optimization pain points are described, and potential
   new requirements of the PCE and PCEP are discussed.

   One point to make clear is that the exploration of specific
   algorithms for NF/VNF placement and path computation is outside the
   scope of this draft.  We are not looking at computational or optimal
   greedy search algorithms.  The goals for this draft are 1) to provide
   justification through use cases for more tightly integrating path and
   placement computation algorithms, and 2) looking at how some of the
   optimization requirements might be addressed, mostly through pre-
   computation and caching, and how these might affect management and
   orchestration functions and the protocols (e.g.  PCEP) that are used.

Status of This Memo

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   This Internet-Draft will expire on June 3, 2017.

Veitch                    Expires June 3, 2017                  [Page 1]
Internet-Draft   Integrated NFV and Network Optimization   November 2016

Copyright Notice

   Copyright (c) 2016 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
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   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Optimization Criteria . . . . . . . . . . . . . . . . . . . .   5
   5.  Challenge of Network Service (or Service Function Chain)
       Optimization Across Multiple Sites  . . . . . . . . . . . . .   6
   6.  Review of Current NFV / SDN Management Solutions  . . . . . .   6
   7.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.1.  Introduction  . . . . . . . . . . . . . . . . . . . . . .   9
     7.2.  Virtual Content Delivery Network (vCDN) - Dynamic (Flash)
           Delivery  . . . . . . . . . . . . . . . . . . . . . . . .   9
     7.3.  Video Narrowcasting Use Case  . . . . . . . . . . . . . .  12
     7.4.  Real-Time Telemetry Use Case - Internet of Things . . . .  14
     7.5.  High Performance Computing (HPC)  . . . . . . . . . . . .  15
   8.  Orchestration of Mixed Applications and Network Services  . .  16
   9.  Generalized Architecture Options for Coordinated or Unified
       SDN/NFV Deployment Planning . . . . . . . . . . . . . . . . .  17
   10. Analysis of Integrated Network and Compute Optimization with
       a Simple Use Case . . . . . . . . . . . . . . . . . . . . . .  18
     10.1.  Introduction . . . . . . . . . . . . . . . . . . . . . .  18
     10.2.  Network Topology . . . . . . . . . . . . . . . . . . . .  18
     10.3.  Simple Orchestration . . . . . . . . . . . . . . . . . .  19
     10.4.  Connectivity Information in VNF Placement Planning . . .  20
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