Service Function Path Establishment
draft-lan-sfp-establishment-03

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INTERNET-DRAFT                                                    J. Lan
Intended Status: Experimental                                      Y. Hu
Expires: October 12, 2017                                          G. Cheng
                                                                 P. Wang
                                                                 L. Tian
                                                         NDSC P.R. China
                                                          April 12, 2017

                  Service Function Path Establishment 
                     draft-lan-sfp-establishment-03

Abstract

   Service Function Chain architecture leads to more adaptive network
   nodes. It allows splitting the network function into fine-grained
   build blocks --- service function, and combining the network
   functions into service function chain to formulate complicated
   services. Further, the service function chain should be instantiated
   by selecting the optimal instance from the candidates for each
   service function in it. This document discusses the required
   components during the instantiation of service function chain in the
   network.

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Copyright and License Notice

   Copyright (c) 2014 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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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions used in this document  . . . . . . . . . . . . . .  3
   3.  Terminology and Abbreviations  . . . . . . . . . . . . . . . .  3
     3.1.  The Terminology  . . . . . . . . . . . . . . . . . . . . .  3
     3.2.  Acronyms and Abbreviations . . . . . . . . . . . . . . . .  4
   4.  Core components for SFP  . . . . . . . . . . . . . . . . . . .  5
     4.1.  Framework  . . . . . . . . . . . . . . . . . . . . . . . .  5
     4.2.  SIB structure  . . . . . . . . . . . . . . . . . . . . . .  6
     4.3.  TIB structure  . . . . . . . . . . . . . . . . . . . . . .  7
   5.  SFP management . . . . . . . . . . . . . . . . . . . . . . . .  7
     5.1.  SFP establishment  . . . . . . . . . . . . . . . . . . . .  9
     5.2.  SFP deletion . . . . . . . . . . . . . . . . . . . . . . . 11
     5.3.  SFP update . . . . . . . . . . . . . . . . . . . . . . . . 12
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 14
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 14
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     8.1.  Normative References . . . . . . . . . . . . . . . . . . . 14
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 14
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15

 

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1.  Introduction

   The end-to-end services delivery often present various demands for
   different functions including the traditional functions and
   diversified novel ones such as application-specific features.
   However, the rigidly fixed model of service function in the legacy
   network chain lacks in adaptability for that circumstance. It cannot
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