Service Function Chaining-Enabled I2NSF Architecture
draft-hyun-i2nsf-nsf-triggered-steering-04

Document Type Active Internet-Draft (individual)
Last updated 2017-10-30
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                            S. Hyun
Internet-Draft                                                  J. Jeong
Intended status: Standards Track                 Sungkyunkwan University
Expires: May 3, 2018                                             J. Park
                                                                    ETRI
                                                                S. Hares
                                                                  Huawei
                                                        October 30, 2017

          Service Function Chaining-Enabled I2NSF Architecture
               draft-hyun-i2nsf-nsf-triggered-steering-04

Abstract

   This document describes an architecture of the I2NSF framework using
   security function chaining for security 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

   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
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   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 May 3, 2018.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Hyun, et al.               Expires May 3, 2018                  [Page 1]
Internet-Draft       SFC-enabled I2NSF Architecture         October 2017

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Objective . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Architecture  . . . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  SFC Policy Manager  . . . . . . . . . . . . . . . . . . .   7
     4.2.  SFC Catalog Manager . . . . . . . . . . . . . . . . . . .   7
     4.3.  Developer's Management System . . . . . . . . . . . . . .   8
     4.4.  Classifier  . . . . . . . . . . . . . . . . . . . . . . .   8
     4.5.  Service Function Forwarder (SFF)  . . . . . . . . . . . .   9
   5.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     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.  Implementation Considerations . . . . . . . . . . . . . . . .  13
     7.1.  SFC Policy Configuration and Management . . . . . . . . .  13
     7.2.  Placement of Classifiers  . . . . . . . . . . . . . . . .  14
     7.3.  Implementation of Network Tunneling . . . . . . . . . . .  14
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  15
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  16
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  16
     10.2.  Informative References . . . . . . . . . . . . . . . . .  16
   Appendix A.  Changes from draft-hyun-i2nsf-nsf-triggered-
                steering-03  . . . . . . . . . . . . . . . . . . . .  18
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18
Show full document text