Group Policy Encoding with VXLAN-GPE and LISP-GPE
draft-lemon-vxlan-lisp-gpe-gbp-01

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Last updated 2019-03-11
Replaces draft-lemon-vxlan-gpe-gbp
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Internet Engineering Task Force                            J. Lemon, Ed.
Internet-Draft                                                  Broadcom
Intended status: Informational                                  F. Maino
Expires: September 12, 2019                                     M. Smith
                                                                   Cisco
                                                                A. Isaac
                                                                 Juniper
                                                          March 11, 2019

           Group Policy Encoding with VXLAN-GPE and LISP-GPE
                   draft-lemon-vxlan-lisp-gpe-gbp-01

Abstract

   This document defines header companions for the Generic Protocol
   Extension for Virtual eXtensible Local Area Network (VXLAN-GPE) and
   for the Locator/ID Separation Protocol (LISP) Generic Protocol
   Extension (LISP-GPE) that are used to carry a Group Policy Identifier
   for the purposes of policy enforcement.

Status of This Memo

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   This Internet-Draft will expire on September 12, 2019.

Copyright 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
   (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

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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  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conventions . . . . . . . . . . . . . . . . . . . . . . .   2
     1.2.  Abbreviations used in this document . . . . . . . . . . .   2
   2.  Treatment By Intermediate Nodes . . . . . . . . . . . . . . .   3
   3.  Group Based Policy Sub-header . . . . . . . . . . . . . . . .   3
     3.1.  Common GBP Sub-Header Format  . . . . . . . . . . . . . .   3
   4.  Use Of Multiple GBP Sub-options . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   7.  Normative References  . . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   This document defines the group-based policy (GBP) sub-header for
   VXLAN-GPE [I-D.ietf-nvo3-vxlan-gpe] and the GBP sub-header for LISP-
   GPE [I-D.ietf-lisp-gpe].  The GBP sub-header carries a 16-bit group
   policy ID that is semantically equivalent to the 16-bit group policy
   ID defined in [I-D.smith-vxlan-group-policy].

   Group-based policy provides a more scalable alternative to access
   control lists (ACLs) by allowing separation of source marking and
   destination enforcement.  This allows a decrease in the amount of
   information needed at each entry node, rather than a cross product of
   every possible source and every possible destination.  It also allows
   assigning source marking based many different possibilities, not just
   the source address.  It also allows not having to know where the
   packet will end up since whatever the destination is can enforce the
   policy specific to the destination service.

1.1.  Conventions

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

1.2.  Abbreviations used in this document

   GBP:       Group-Based Policy

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   LISP-GPE:  Locator/ID Separation Protocol Generic Protocol Extension
              [I-D.ietf-lisp-gpe]

   VXLAN-GPE: Virtual eXtensible Local Area Network, Generic Protocol
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