Co-existence of 3GPP 5GS and Identifier Locator Separation Architecture
draft-homma-dmm-5gs-id-loc-coexistence-01

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dmm                                                             S. Homma
Internet-Draft                                               K. Kawakami
Intended status: Standards Track                                     NTT
Expires: November 16, 2018                                   A. Akhavain
                                           Huawei Canada Research Centre
                                                            May 15, 2018

Co-existence of 3GPP 5GS and Identifier Locator Separation Architecture
               draft-homma-dmm-5gs-id-loc-coexistence-01

Abstract

   This document describes an approach to introduce Identifier Locator
   Separation architecture into 3GPP 5GS with low-impact on its
   specification, and shows the features and considerations of this
   approach.

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Homma, et al.           Expires November 16, 2018               [Page 1]
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Terms of ID-LOC Protocols . . . . . . . . . . . . . . . .   4
     2.2.  Terms of 5GS  . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Mechanism on Data Plane . . . . . . . . . . . . . . . . . . .   5
   4.  Mechanisms on Control Plane . . . . . . . . . . . . . . . . .  10
     4.1.  Model 1: Independent Control Planes . . . . . . . . . . .  11
     4.2.  Model 2: Interworking Control Planes  . . . . . . . . . .  11
     4.3.  Model 3: Integrated Control Planes  . . . . . . . . . . .  12
   5.  Features Analysis . . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  Benefits  . . . . . . . . . . . . . . . . . . . . . . . .  12
     5.2.  Issues  . . . . . . . . . . . . . . . . . . . . . . . . .  12
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   8.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .  13
   9.  Informative References  . . . . . . . . . . . . . . . . . . .  13
   Appendix A.  Case Studies on Use of LISP  . . . . . . . . . . . .  14
     A.1.  UE-to-UE Communication  . . . . . . . . . . . . . . . . .  15
       A.1.1.  Case A-1: UEs allocated different dUPF  . . . . . . .  15
       A.1.2.  Case A-2: UEs allocated the same xTR  . . . . . . . .  17
       A.1.3.  Consideration of Case that UE Moves to under Another
               xTR . . . . . . . . . . . . . . . . . . . . . . . . .  18
     A.2.  UE-to-dDN Communication . . . . . . . . . . . . . . . . .  18
       A.2.1.  Case A-3: UE communicates with neighbor dDN . . . . .  18
       A.2.2.  Case A-4: UE communicates with non-neighbor dDN . . .  20
     A.3.  UE-to-cDN/Internet Communication  . . . . . . . . . . . .  22
       A.3.1.  Case A-5: UE communicates with cDN  . . . . . . . . .  22
   Appendix B.  Case Studies on Use of ILA . . . . . . . . . . . . .  24
     B.1.  UE-to-UE Communications . . . . . . . . . . . . . . . . .  25
       B.1.1.  Case B-1: UEs allocated different dUPF  . . . . . . .  25
       B.1.2.  Case B-2: UEs allocated the same ILA node . . . . . .  26
     B.2.  UE-to-dDN Communication . . . . . . . . . . . . . . . . .  28
       B.2.1.  Case B-3: UE communicates with neighbor dDN . . . . .  28
       B.2.2.  Case B-4: UE communicates with non-neighbor dDN . . .  30
     B.3.  UE-to-cDN/Internet Communication  . . . . . . . . . . . .  32
       B.3.1.  Case B-5: Internet Communication  . . . . . . . . . .  33
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