Native Short Addresses for the Internet Edge
draft-li-native-short-addresses-00

Document Type Active Internet-Draft (individual)
Authors Guangpeng Li  , Sheng Jiang  , Donald Eastlake 
Last updated 2021-02-21
Replaces draft-jiang-asymmetric-ipv6
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Network Working Group                                              G. Li
Internet-Draft                                       Huawei Technologies
Obsoletes: draft-jiang-asymmetric-                              S. Jiang
           ipv6-04 (if approved)            Huawei Technologies Co., Ltd
Intended status: Informational                           D. Eastlake 3rd
Expires: August 24, 2021                                       Futurewei
                                                       February 20, 2021

              Native Short Addresses for the Internet Edge
                   draft-li-native-short-addresses-00

Abstract

   This document describes a new approach to IP header compression
   including native short addresses adoption for use in scenarios where
   minimizing packet size is crucial but routing performance must be
   maximised.

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, 2021.

Copyright Notice

   Copyright (c) 2021 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
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   include Simplified BSD License text as described in Section 4.e of

Li, et al.               Expires August 24, 2021                [Page 1]
Internet-Draft           Native Short Addresses            February 2021

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   6.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   7.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
   8.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   9.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   Appendix A. . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.

   The large address space of IPv6 is essential for the massive
   expansion of the network edge that will be caused by "Internet of
   Things" (IoT) technology over low-power or 5G links.  However, the
   size of a raw IPv6 packet header causes difficulty due to the small
   maximum transmission units (MTU) allowed by typical low-power, low-
   cost link layers.  For 5G, the importance of header overhead in small
   packets is discussed in [NGMN-5G].  Thus header compression,
   including address compression, is an important issue.  This decreases
   the size of raw packets, but compressed IP addresses are not
   routeable except by decompressing them completely in every forwarding
   node.  There are two issues here.  The first is the extra computation
   resource needed for compressing or decompressing in constrained IoT
   nodes.  The second is that full-length IPv6 routing will consume more
   memory to store routing tables and packet queues (assuming that
   routing is not bypassed by tunnelling).  Such resource consumption is
   very undesirable in constrained nodes with limited storage, CPU
   power, and battery capacity.

   To mitigate these issues, here we propose a solution enabling the
   shortening of IPv6 addresses inside packets, and the routing of
   packets according to short addresses, without needing the overhead of
   a decompression step prior to route lookup.  Considering that the
   scale and size of edge networks may vary widely, different lengths of
   short address can be used in different domains.
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