Applicability of Interfaces to Network Security Functions to Network-Based Security Services
draft-ietf-i2nsf-applicability-09

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I2NSF Working Group                                             J. Jeong
Internet-Draft                                   Sungkyunkwan University
Intended status: Informational                                   S. Hyun
Expires: September 12, 2019                            Chosun University
                                                                  T. Ahn
                                                           Korea Telecom
                                                                S. Hares
                                                                  Huawei
                                                                D. Lopez
                                                          Telefonica I+D
                                                          March 11, 2019

 Applicability of Interfaces to Network Security Functions to Network-
                        Based Security Services
                   draft-ietf-i2nsf-applicability-09

Abstract

   This document describes the applicability of Interface to Network
   Security Functions (I2NSF) to network-based security services in
   Network Functions Virtualization (NFV) environments, such as
   firewall, deep packet inspection, or attack mitigation engines.

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
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 12, 2019.

Copyright Notice

   Copyright (c) 2019 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

Jeong, et al.          Expires September 12, 2019               [Page 1]
Internet-Draft             I2NSF Applicability                March 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  I2NSF Framework . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Time-dependent Web Access Control Service . . . . . . . . . .   6
   5.  I2NSF Framework with SFC  . . . . . . . . . . . . . . . . . .   8
   6.  I2NSF Framework with SDN  . . . . . . . . . . . . . . . . . .  10
     6.1.  Firewall: Centralized Firewall System . . . . . . . . . .  13
     6.2.  Deep Packet Inspection: Centralized VoIP/VoLTE Security
           System  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.3.  Attack Mitigation: Centralized DDoS-attack Mitigation
           System  . . . . . . . . . . . . . . . . . . . . . . . . .  16
   7.  I2NSF Framework with NFV  . . . . . . . . . . . . . . . . . .  19
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  20
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  20
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  21
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  21
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  21
     11.2.  Informative References . . . . . . . . . . . . . . . . .  22
   Appendix A.  Changes from draft-ietf-i2nsf-applicability-08 . . .  25
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  25

1.  Introduction

   Interface to Network Security Functions (I2NSF) defines a framework
   and interfaces for interacting with Network Security Functions
   (NSFs).  Note that Network Security Function (NSF) is defined as a
   funcional block for a security service within an I2NSF framework that
   has well-defined I2NSF NSF-facing interface and other external
   interfaces and well-defined functional behavior [NFV-Terminology].

   The I2NSF framework allows heterogeneous NSFs developed by different
   security solution vendors to be used in the Network Functions
   Virtualization (NFV) environment [ETSI-NFV] by utilizing the
   capabilities of such products and the virtualization of security