Thing-to-Thing Data Hub
draft-hartke-t2trg-data-hub-00

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Replaces draft-hartke-t2trg-bulletin-board
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Thing-to-Thing Research Group                                  K. Hartke
Internet-Draft                                   Universitaet Bremen TZI
Intended status: Experimental                          November 13, 2016
Expires: May 17, 2017

                        Thing-to-Thing Data Hub
                     draft-hartke-t2trg-data-hub-00

Abstract

   A Thing-to-Thing Data Hub is a RESTful, hypermedia-driven Web
   application that can be used in Thing-to-Thing communication to
   share information such as thing descriptions, configurations,
   resource descriptions or sleep schedules at a central location.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on May 17, 2017.

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   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Hartke                    Expires May 17, 2017                  [Page 1]
Internet-Draft           Thing-to-Thing Data Hub           November 2016

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Data Hubs . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Data Model  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Interaction Model . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Application Description . . . . . . . . . . . . . . . . .   6
   3.  Interoperability Considerations . . . . . . . . . . . . . . .   7
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Appendix A.  Related Work . . . . . . . . . . . . . . . . . . . .   9
     A.1.  CoRE Lighting . . . . . . . . . . . . . . . . . . . . . .   9
     A.2.  CoAP Publish-Subscribe  . . . . . . . . . . . . . . . . .  10
     A.3.  CoRE Resource Directory . . . . . . . . . . . . . . . . .  12
     A.4.  CoRE Mirror Server  . . . . . . . . . . . . . . . . . . .  13
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   In Thing-to-Thing communication, there is often a need to share
   information of common interest at a central location.  For example, a
   CoRE Resource Directory [I-D.ietf-core-resource-directory] aggregates
   descriptions of resources held on other servers, which enables things
   to easily discover these resources.  Similarly, a W3C Web-of-Things
   Thing Description Repository [WOT] stores the semantic metadata of
   things as well as functional descriptions of their interfaces, making
   this information available to Web dashboards, commissioning tools and
   other things.

   As more and more thing-to-thing applications are implemented, it
   becomes increasingly important to be able to share also other data
   than resource and thing descriptions, such as the sleep schedules of
   devices, default configurations for new devices, firmware update
   notices, or certificate revocation lists.  Resource directory and
   thing description repository are not always the best fit for this
   kind of data and defining a new specialized application for each use
   case is not practical in the long term.

   This document defines a simple "data hub" application, a RESTful Web
   application suitable for constrained environments that generalizes
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