Geneve applicability for service function chaining
draft-boutros-nvo3-geneve-applicability-for-sfc-04

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Last updated 2019-09-16
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INTERNET-DRAFT                                         Sami Boutros, Ed.
Intended Status: Standard Track                                   VMware
                                                            Dharma Rajan
                                                           Philip Kippen
                                                       Pierluigi Rolando
                                                                  VMware
                                                            Jim Guichard
                                                                  Huawei
                                                              Sam Aldrin
                                                                  Google

Expires: March 19, 2020                               September 16, 2019

           Geneve applicability for service function chaining
           draft-boutros-nvo3-geneve-applicability-for-sfc-04

   Abstract

   This document describes the applicability of using Generic Network
   Virtualization Encapsulation (Geneve), to carry the service function
   path (SFP) information, and the network service header (NSH)
   encapsulation. The SFP information will be carried in Geneve option
   TLV(s).

Status of this Memo

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INTERNET DRAFT     NVO3 Geneve applicability for SFC  September 16, 2019

Copyright and License 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
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Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1 Requirement for SFC in NVO3 domain . . . . . . . . . . . . .  3
     1.2 Proposed solution for SFC in NVO3 domain . . . . . . . . . .  3
   2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4. Geneve Option TLV(s)  . . . . . . . . . . . . . . . . . . . . .  5
     4.1 Geneve Service Function List (SFL) Option TLV  . . . . . . .  5
   5.. Operation  . . . . . . . . . . . . . . . . . . . . . . . . . .  7
     5.1 Operation at Ingress . . . . . . . . . . . . . . . . . . . .  7
     5.2 Operation at each NVE along the service function path  . . .  8
     5.3 Operation at Egress  . . . . . . . . . . . . . . . . . . . .  9
   6. Security Considerations . . . . . . . . . . . . . . . . . . . .  9
   7. Management Considerations . . . . . . . . . . . . . . . . . . . 10
   8. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 11
   9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 11
   10.  References  . . . . . . . . . . . . . . . . . . . . . . . . . 11
     10.1  Normative References . . . . . . . . . . . . . . . . . . . 11
     10.2  Informative References . . . . . . . . . . . . . . . . . . 11
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12

 

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1. Introduction

   The Service Function Chaining (SFC) Architecture [rfc7665] defines a
   service function chain (SFC) as (1) the instantiation of an ordered
   set of service functions and (2) the subsequent "steering" of traffic
   through them.

   SFC defines a Service Function Path (SFP) as the exact set of service
   function forwarders (SFF)/service functions (SF)s the packet will
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