I2NSF on the NFV Reference Architecture
draft-yang-i2nsf-nfv-architecture-04

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Network Working Group                                            H. Yang
Internet-Draft                                                    Y. Kim
Intended status: Informational                       Soongsil University
Expires: May 10, 2019                                           J. Jeong
                                                                  J. Kim
                                                 Sungkyunkwan University
                                                        November 6, 2018

                I2NSF on the NFV Reference Architecture
                  draft-yang-i2nsf-nfv-architecture-04

Abstract

   This document describes the integration of Interface to Network
   Security Functions (I2NSF) Framework into the Network Functions
   Virtualization (NFV) Reference Model.  This document explains how the
   components and interfaces in the I2NSF Framework can be placed in the
   NFV reference architecture, and also explains the procedures of the
   lifecycle management of Network Security Functions (NSFs) according
   to a user's security policy specification in the I2NSF framework on
   the NFV system.

Status of This Memo

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   This Internet-Draft will expire on May 10, 2019.

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   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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   (https://trustee.ietf.org/license-info) in effect on the date of

Yang, et al.              Expires May 10, 2019                  [Page 1]
Internet-Draft   I2NSF on the NFV Reference Architecture   November 2018

   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  I2NSF framework onto the NFV Reference Model  . . . . . . . .   3
     3.1.  Network Security Function . . . . . . . . . . . . . . . .   4
     3.2.  Security Controller . . . . . . . . . . . . . . . . . . .   5
     3.3.  Developer's Management System . . . . . . . . . . . . . .   5
     3.4.  I2NSF Interfaces  . . . . . . . . . . . . . . . . . . . .   5
       3.4.1.  Consumer-Facing Interface . . . . . . . . . . . . . .   5
       3.4.2.  NSF-Facing Interface  . . . . . . . . . . . . . . . .   6
       3.4.3.  Registration Interface  . . . . . . . . . . . . . . .   6
       3.4.4.  Interface for NSF Management  . . . . . . . . . . . .   6
   4.  Initial Configuration Procedure in NFV Architecture . . . . .   6
   5.  Multi-site Consideration  . . . . . . . . . . . . . . . . . .  10
   6.  Use Case of SFC-Enabled I2NSF Framework . . . . . . . . . . .  10
     6.1.  SFC Policy Manager  . . . . . . . . . . . . . . . . . . .  11
     6.2.  SFC Catalog Manager . . . . . . . . . . . . . . . . . . .  11
     6.3.  Developer's Management System in SFC-Enabled I2NSF
           Framework . . . . . . . . . . . . . . . . . . . . . . . .  12
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  12
   Appendix A.  Changes from draft-yang-i2nsf-nfv-architecture-03  .  14
   Appendix B.  Acknowledgements . . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   The goal of Interface to Network Security Functions (I2NSF) is to
   define a set of software interfaces and components for controlling
   and monitoring aspects of physical and virtual Network Security
   Functions (NSFs), with which a user can specify high-level security
   policy.  To achieve this goal, the I2NSF framework not only considers
   physical infrastructure, but also considers a Network Functions
   Virtualization (NFV) environment since an NSF may be provided by
   virtualized infrastructure as a Virtual Network Function (VNF).
   Especially, the I2NSF applicability document [I2NSF-Applicability]
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