Applicability of Interfaces to Network Security Functions to Network-Based Security Services
draft-ietf-i2nsf-applicability-11

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I2NSF Working Group                                             J. Jeong
Internet-Draft                                   Sungkyunkwan University
Intended status: Informational                                   S. Hyun
Expires: November 17, 2019                             Chosun University
                                                                  T. Ahn
                                                           Korea Telecom
                                                                S. Hares
                                                                  Huawei
                                                                D. Lopez
                                                          Telefonica I+D
                                                            May 16, 2019

 Applicability of Interfaces to Network Security Functions to Network-
                        Based Security Services
                   draft-ietf-i2nsf-applicability-11

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
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 17, 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 November 17, 2019               [Page 1]
Internet-Draft             I2NSF Applicability                  May 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 . . . . . . . . . .   7
   5.  I2NSF Framework with SFC  . . . . . . . . . . . . . . . . . .  10
   6.  I2NSF Framework with SDN  . . . . . . . . . . . . . . . . . .  12
     6.1.  Firewall: Centralized Firewall System . . . . . . . . . .  15
     6.2.  Deep Packet Inspection: Centralized VoIP/VoLTE Security
           System  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     6.3.  Attack Mitigation: Centralized DDoS-attack Mitigation
           System  . . . . . . . . . . . . . . . . . . . . . . . . .  15
   7.  I2NSF Framework with NFV  . . . . . . . . . . . . . . . . . .  17
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  19
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  19
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  20
     11.2.  Informative References . . . . . . . . . . . . . . . . .  21
   Appendix A.  Changes from draft-ietf-i2nsf-applicability-10 . . .  23
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

1.  Introduction

   Interface to Network Security Functions (I2NSF) defines a framework
   and interfaces for interacting with Network Security Functions
   (NSFs).  Note that an NSF is defined as software that provides a set
   of security-related services, such as (i) detecting unwanted
   activity, (ii) blocking or mitigating the effect of such unwanted
   activity in order to fulfil service requirements, and (iii)
   supporting communication stream integrity and confidentiality
   [i2nsf-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