LISP Generic Protocol Extension
draft-lewis-lisp-gpe-00

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Last updated 2013-08-27
Replaced by draft-ietf-lisp-gpe
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Network Working Group                                           D. Lewis
Internet-Draft                                                L. Kreeger
Intended status: Informational                                  F. Maino
Expires: February 28, 2014                                      P. Quinn
                                                     Cisco Systems, Inc.
                                                                M. Smith
                                                                N. Yadav
                                                        Insieme Networks
                                                         August 27, 2013

                    LISP Generic Protocol Extension
                      draft-lewis-lisp-gpe-00.txt

Abstract

   This draft describes a mechanism for adding generalized multi-
   protocol support to the Locator/ID Separation Protocol (LISP)
   [RFC6830].  Protocol identification is carried in the LISP header and
   is used to describe the encapsulated payload.

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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   This Internet-Draft will expire on February 28, 2014.

Copyright Notice

   Copyright (c) 2013 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

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   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 . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  LISP Header  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Generic Protocol Extension for LISP (LISP-gpe) . . . . . . . .  5
     3.1.  LISP-gpe Header  . . . . . . . . . . . . . . . . . . . . .  5
   4.  Backward Compatibility . . . . . . . . . . . . . . . . . . . .  6
     4.1.  LISP-gpe Routers to (legacy) LISP Routers  . . . . . . . .  6
     4.2.  (legacy) LISP Routers to LISP-gpe Routers  . . . . . . . .  6
     4.3.  Type of Service  . . . . . . . . . . . . . . . . . . . . .  6
     4.4.  VLAN Identifier (VID)  . . . . . . . . . . . . . . . . . .  6
   5.  LISP-gpe Examples  . . . . . . . . . . . . . . . . . . . . . .  7
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   7.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 10
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 12
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 12
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 13

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1.  Introduction

   LISP [RFC6830] defines an encapsulation format that carries IPv4 or
   IPv6 (henceforth referred to as IP) packets in a LISP header and
   outer UDP/IP transport.  The LISP header does not specify the
   protocol being encapsulated and therefore is currently limited to
   encapsulating only IP packet payloads.  Other protocols, most notably
   VXLAN [VXLAN] (which defines a similar header format to LISP), are
   used to encapsulate L2 protocols such as Ethernet.  LISP [RFC6830]
   can be extended to indicate the inner protocol, enabling the
   encapsulation of Ethernet, IP or any other desired protocol all the
   while ensuring compatibility with existing LISP [RFC6830]
   deployments.

   This document describes extending LISP ([RFC6830]) to support
   additional payload types beyond IP packets.  To support this
   capability, two elements of the existing LISP header are modified.

   1.  A flag bit is allocated, and set in the LISP header.
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