Virtual Enterprise Traversal (VET)
draft-templin-intarea-vet-40

Network Working Group                                    F. Templin, Ed.
Internet-Draft                              Boeing Research & Technology
Obsoletes: RFC5558 (if approved)                            May 03, 2013
Intended status: Informational
Expires: November 4, 2013

                   Virtual Enterprise Traversal (VET)
                    draft-templin-intarea-vet-40.txt

Abstract

   Enterprise networks connect hosts and routers over various link
   types, and often also connect to the global Internet either directly
   or via a provider network.  Enterprise network nodes require a means
   to automatically provision addresses/prefixes and support
   internetworking operation in a wide variety of use cases including
   Small Office / Home Office (SOHO) networks, Mobile Ad hoc Networks
   (MANETs), ISP networks, multi-organizational corporate networks and
   the interdomain core of the global Internet itself.  This document
   specifies a Virtual Enterprise Traversal (VET) abstraction for
   autoconfiguration and operation of nodes in dynamic enterprise
   networks.

Status of this Memo

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   This Internet-Draft will expire on November 4, 2013.

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Templin                 Expires November 4, 2013                [Page 1]
Internet-Draft                     VET                          May 2013

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Differences with RFC5558 . . . . . . . . . . . . . . . . . . .  6
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  7
   4.  Enterprise Network Characteristics . . . . . . . . . . . . . . 12
   5.  Autoconfiguration  . . . . . . . . . . . . . . . . . . . . . . 14
     5.1.  Enterprise Router (ER) Autoconfiguration . . . . . . . . . 14
     5.2.  VET Border Router (VBR) Autoconfiguration  . . . . . . . . 16
       5.2.1.  VET Interface Initialization . . . . . . . . . . . . . 16
       5.2.2.  Potential Router List (PRL) Discovery  . . . . . . . . 17
       5.2.3.  Provider-Aggregated (PA) EID Prefix
               Autoconfiguration  . . . . . . . . . . . . . . . . . . 18
       5.2.4.  Provider-Independent EID Prefix Autoconfiguration  . . 19
     5.3.  VET Border Gateway (VBG) Autoconfiguration . . . . . . . . 19
     5.4.  VET Host Autoconfiguration . . . . . . . . . . . . . . . . 20
   6.  Internetworking Operation  . . . . . . . . . . . . . . . . . . 21
     6.1.  Routing Protocol Participation . . . . . . . . . . . . . . 21
       6.1.1.  PI Prefix Routing Considerations . . . . . . . . . . . 22
       6.1.2.  Client Prefix (CP) Routing Considerations  . . . . . . 22
     6.2.  Default Route Configuration and Selection  . . . . . . . . 22
     6.3.  Address Selection  . . . . . . . . . . . . . . . . . . . . 22
     6.4.  Next Hop Determination . . . . . . . . . . . . . . . . . . 23
     6.5.  VET Interface Encapsulation/Decapsulation  . . . . . . . . 24
       6.5.1.  Inner Network Layer Protocol . . . . . . . . . . . . . 24
       6.5.2.  SEAL Encapsulation . . . . . . . . . . . . . . . . . . 25
       6.5.3.  UDP Encapsulation  . . . . . . . . . . . . . . . . . . 25
       6.5.4.  Outer IP Header Encapsulation  . . . . . . . . . . . . 26
       6.5.5.  Decapsulation and Re-Encapsulation . . . . . . . . . . 26
     6.6.  Neighbor Coordination on VET Interfaces that use SEAL  . . 27
       6.6.1.  Router Discovery . . . . . . . . . . . . . . . . . . . 28
       6.6.2.  Neighbor Unreachability Detection  . . . . . . . . . . 29