Service Function Chaining-Enabled I2NSF Architecture
draft-hyun-i2nsf-nsf-triggered-steering-03

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Last updated 2017-07-03
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Network Working Group                                            S. Hyun
Internet-Draft                                                  J. Jeong
Intended status: Standards Track                 Sungkyunkwan University
Expires: January 4, 2018                                         J. Park
                                                                    ETRI
                                                                S. Hares
                                                                  Huawei
                                                            July 3, 2017

          Service Function Chaining-Enabled I2NSF Architecture
               draft-hyun-i2nsf-nsf-triggered-steering-03

Abstract

   This document describes an architecture of the I2NSF framework using
   security function chaining for securiy policy enforcement.  Security
   function chaining enables composite inspection of network traffic by
   steering the traffic through multiple types of network security
   functions according to the information model for NSFs capabilities in
   the I2NSF framework.  This document explains the additional
   components integrated into the I2NSF framework and their
   functionalities to achieve security function chaining.  It also
   describes representative use cases to address major benefits from the
   proposed architecture.

Status of This Memo

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   This Internet-Draft will expire on January 4, 2018.

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Copyright Notice

   Copyright (c) 2017 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
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Objective  . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Architecture . . . . . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  SFC Policy Manager . . . . . . . . . . . . . . . . . . . .  8
     4.2.  SFC Catalog Manager  . . . . . . . . . . . . . . . . . . .  8
     4.3.  Developer's Management System  . . . . . . . . . . . . . .  9
     4.4.  Classifier . . . . . . . . . . . . . . . . . . . . . . . .  9
     4.5.  Service Function Forwarder (SFF) . . . . . . . . . . . . .  9
   5.  Use Cases  . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     5.1.  Dynamic Path Alternation . . . . . . . . . . . . . . . . . 10
     5.2.  Enforcing Different SFPs Depending on Trust Levels . . . . 11
     5.3.  Effective Load Balancing with Dynamic SF Instantiation . . 12
   6.  Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . 13
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 14
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 14
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 15
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 15
   Appendix A.  Changes from
                draft-hyun-i2nsf-nsf-triggered-steering-02  . . . . . 16

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1.  Introduction
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