Design Considerations For Low Power Internet Protocols
draft-ayers-low-power-interop-00

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INTERNET-DRAFT                                              Hudson Ayers
Intended Status: Informational                                Paul Crews
Expires: December 31, 2018                                    Hubert Teo
                                                           Conor McAvity
                                                               Amit Levy
                                                            Philip Levis
                                                     Stanford University
                                                           June 29, 2018

        Design Considerations For Low Power Internet Protocols 
                    draft-ayers-low-power-interop-00

Abstract

   This document discusses guidelines for specifying low-power Internet
   protocols in order to improve implementation interoperability. These
   guidelines are based around the importance of balancing memory usage
   and energy efficiency, and the importance of not relying on Postel's
   law when dealing with low resource devices. This document applies
   these guidelines to the IPv6 over low-power wireless personal area
   networks (6LoWPAN) Internet Standard, suggesting changes that would
   make it more likely for implementations to interoperate.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
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Hudson Ayers           Expires December 31, 2018                [Page 1]
INTERNET DRAFT         6lo Design Considerations           June 29, 2018

Copyright and License Notice

   Copyright (c) 2018 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
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Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  6LoWPAN Interoperability Study . . . . . . . . . . . . . . . .  4
     2.1  Incomplete Implementations  . . . . . . . . . . . . . . . .  5
     2.2  Unrealistic Bounds  . . . . . . . . . . . . . . . . . . . .  6
       2.2.1 Maximum Header Decompression . . . . . . . . . . . . . .  6
       2.2.2 Arbitrary Next Header Compression  . . . . . . . . . . .  6
     2.3  No Pairing Interoperates  . . . . . . . . . . . . . . . . .  7
   3  Implementation Concerns . . . . . . . . . . . . . . . . . . . .  9
     3.1  Processor Resources . . . . . . . . . . . . . . . . . . . .  9
   5 Contributing Factors . . . . . . . . . . . . . . . . . . . . . . 11
   6 Design Guidelines  . . . . . . . . . . . . . . . . . . . . . . . 11
     6.1 Guideline 1: Capability Spectrum . . . . . . . . . . . . . . 11
       6.1.1 Guideline 1 Application to 6LoWPAN . . . . . . . . . . . 12
     6.2 Guideline 2: Capability Discovery  . . . . . . . . . . . . . 13
       6.2.1 Guideline 2 Application to 6LoWPAN . . . . . . . . . . . 13
     6.3 Guideline 3: Provide Reasonable Bounds . . . . . . . . . . . 14
       6.3.1 Guideline 3 Application to 6LoWPAN . . . . . . . . . . . 14
     6.4 Guideline 4: Don't Break Layering  . . . . . . . . . . . . . 15
       6.4.1 Guideline 4 Application to 6LoWPAN . . . . . . . . . . . 16
   7  Security Considerations . . . . . . . . . . . . . . . . . . . . 18
   8  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 18
   9  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     9.1  Normative References  . . . . . . . . . . . . . . . . . . . 18
     9.2  Informative References  . . . . . . . . . . . . . . . . . . 19
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 20
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