An Analysis of Lightweight Virtualization Technologies for NFV
draft-natarajan-nfvrg-containers-for-nfv-02

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Last updated 2016-07-04
Replaces draft-natarajan-containers-for-nfv
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NFVRG                                                      S. Natarajan
Internet Draft                                                   Google
Category: Informational                                     R. Krishnan
                                                           A. Ghanwani
                                                                   Dell
                                                        D. Krishnaswamy
                                                           IBM Research
                                                              P. Willis
                                                                     BT
                                                           A. Chaudhary
                                                                Verizon
                                                               F. Huici
                                                                    NEC

Expires: March 2016                                        July 4, 2016

      An Analysis of Lightweight Virtualization Technologies for NFV

               draft-natarajan-nfvrg-containers-for-nfv-02

Abstract

   Traditionally, NFV platforms were limited to using standard
   virtualization technologies (e.g., Xen, KVM, VMWare, Hyper-V, etc.)
   running guests based on general-purpose operating systems such as
   Windows, Linux or FreeBSD. More recently, a number of light-weight
   virtualization technologies including containers, unikernels
   (specialized VMs) and minimalistic distributions of general-purpose
   OSes have widened the spectrum of possibilities when constructing an
   NFV platform. This draft describes the challenges in building such a
   platform and discusses to what extent these technologies, as well as
   traditional VMs, are able to address them.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with
   the provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups. Note that
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   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents

Krishnan et al.          Expires January 2017                  [Page 1]
Internet-Draft    Container-based Platforms for NFV     September 2015

   at any time. It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire in January 2017.

Copyright Notice

   Copyright (c) 2015 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
   (http://trustee.ietf.org/license-info) in effect on the date of
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   respect to this document.

Conventions used in this document

   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.

Table of Contents

   1. Introduction...................................................3
   2. Lightweight Virtualization Background..........................3
      2.1. Containers................................................3
      2.2. OS Tinyfication...........................................3
      2.3. Unikernels................................................4
   3. Challenges in Building NFV Platforms...........................4
      3.1. Performance (SLA).........................................4
         3.1.1. Challenges...........................................4
      3.2. Continuity, Elasticity and Portability....................5
         3.2.1. Challenges:..........................................5
      3.3. Security..................................................6
         3.3.1. Challenges...........................................6
      3.4. Management................................................7
         3.4.1. Challenges...........................................8
   4. Benchmarking Experiments.......................................8
      4.1. Experimental Setup........................................8

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      4.2. Instantiation Times.......................................9
      4.3. Throughput................................................9
      4.4. RTT......................................................10
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