An Architectural Framework of the Internet for the Real IP World
draft-shyam-real-ip-framework-27

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INTERNET DRAFT                                          S. Bandyopadhyay
draft-shyam-real-ip-framework-27.txt                   February 24, 2017
Intended status: Informational
Expires: August 24, 2017

    An Architectural Framework of the Internet for the Real IP World
                  draft-shyam-real-ip-framework-27.txt

Abstract

   This document tries to propose an architectural framework of the
   internet in the real IP world. It shows how to reorganize the
   provider network with a large address space. It describes how a
   three-tier mesh structured hierarchy can be established based on
   fragmenting the entire space into some regions and some sub regions
   inside each of them. It addresses issues which could be relevant to
   this architecture in the context of IPv6.

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
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   This Internet-Draft will expire on August 24, 2017.

Copyright Notice

   Copyright (c) 2017 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
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Bandyopadhyay            Expires August 24, 2017                [Page 1]
Internet Draft             Real IP Framework           February 24, 2017

Table of Contents
   1. Introduction.....................................................2
   2. Background.......................................................2
   3. A Three tier mesh structured hierarchical network................4
      3.1. Route propagation...........................................5
      3.2. Determination of prefix lengths.............................7
           3.2.1. A pseudo optimal distribution of prefixes in
                  a 64bit architecture.................................8
           3.2.2. Whether to go for a two tier or three tier hierarchy
                  ....................................................10
      3.3. Issues related to Satellite communications.................11
   4. Issues related to PI addressing and IP mobility.................11
      4.1. Changes expected with the specifications related
           to IP mobility.............................................15
   5. Refinements over existing IPv6 specification....................16
   6. Distributed processing and Multicasting.........................18
   7. Transition to real IP from private IP...........................18
   8. IANA Consideration..............................................19
   9. Security Consideration..........................................19
   10. Acknowledgments................................................19
   11. Normative References...........................................19
   12. Informative References.........................................20
   13. Author's Address...............................................20

1. Introduction

   Transition from IPv4 to IPv6 is in the process. Work has been done to
   upgrade individual nodes (workstations) from IPv4 to IPv6. Also,
   there are established documents to make routers/switches to work to
   support IPv4 as well as IPv6 packets simultaneously in order to make
   the transition possible [1].  CIDR[2] based hierarchical architecture
   in the existing 32-bit system is supposed to be continued in IPv6 too
   with a large address space. There are documents/concerns over BGP
   table entries to become too large in the existing system [3]. There
   are proposals to upgrade Autonomous System number to 32-bit from
   16-bit to support the demand at the same time [4]. The challenge
   relies on how to make the transition smooth from IPv4 to a real IP
   world with least changes possible.

   The term "real IP environment" is referred to an environment where
   hosts in a customer network will possess globally unique IP addresses
   and communicate with the rest of the world without the help of
   NAT[5].

2. Background

   Existing system is in work with Autonomous System (AS) and inter-AS
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