LISP Generic Protocol Extension
draft-ietf-lisp-gpe-06

Document Type Active Internet-Draft (lisp WG)
Last updated 2018-09-27 (latest revision 2018-09-20)
Replaces draft-lewis-lisp-gpe
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Internet Engineering Task Force                            F. Maino, Ed.
Internet-Draft                                                     Cisco
Intended status: Standards Track                                J. Lemon
Expires: March 24, 2019                                         Broadcom
                                                              P. Agarwal
                                                                Innovium
                                                                D. Lewis
                                                                M. Smith
                                                                   Cisco
                                                      September 20, 2018

                    LISP Generic Protocol Extension
                         draft-ietf-lisp-gpe-06

Abstract

   This document describes extentions to the Locator/ID Separation
   Protocol (LISP) Data-Plane, via changes to the LISP header, to
   support multi-protocol encapsulation.

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
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   Drafts is at http://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 March 24, 2019.

Copyright Notice

   Copyright (c) 2018 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
   carefully, as they describe your rights and restrictions with respect

Maino, et al.            Expires March 24, 2019                 [Page 1]
Internet-Draft       LISP Generic Protocol Extension      September 2018

   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
     1.1.  Conventions . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Definition of Terms . . . . . . . . . . . . . . . . . . .   3
   2.  LISP Header Without Protocol Extensions . . . . . . . . . . .   3
   3.  Generic Protocol Extension for LISP (LISP-GPE)  . . . . . . .   4
     3.1.  Payload Specific Transport Interactions . . . . . . . . .   6
       3.1.1.  Payload Specific Transport Interactions for Ethernet
               Encapsulated Payloads . . . . . . . . . . . . . . . .   6
       3.1.2.  Payload Specific Transport Interactions for NSH
               Encapsulated Payloads . . . . . . . . . . . . . . . .   7
   4.  Backward Compatibility  . . . . . . . . . . . . . . . . . . .   7
     4.1.  Use of "Multiple Data-Planes" LCAF to Determine ETR
           Capabilities  . . . . . . . . . . . . . . . . . . . . . .   7
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  LISP-GPE Next Protocol Registry . . . . . . . . . . . . .   8
     5.2.  Multiple Data-Planes Encapsulation Bitmap Registry  . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgements and Contributors . . . . . . . . . . . . . .  10
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The LISP Data-Plane is defined in [I-D.ietf-lisp-rfc6830bis].  It
   specifies an encapsulation format that carries IPv4 or IPv6 packets
   (henceforth jointly referred to as IP) in a LISP header and outer
   UDP/IP transport.

   The LISP Data-Plane header does not specify the protocol being
   encapsulated and therefore is currently limited to encapsulating only
   IP packet payloads.  Other protocols, most notably Virtual eXtensible
   Local Area Network (VXLAN) [RFC7348] (which defines a similar header
   format to LISP), are used to encapsulate Layer-2 (L2) protocols such
   as Ethernet.

   This document defines an extension for the LISP header, as defined in
   [I-D.ietf-lisp-rfc6830bis], to indicate the inner protocol, enabling
   the encapsulation of Ethernet, IP or any other desired protocol all
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