CoRE Working Group A. Castellani
Internet-Draft University of Padova
Intended status: Informational S. Loreto
Expires: August 29, 2013 Ericsson
A. Rahman
InterDigital Communications, LLC
T. Fossati
KoanLogic
E. Dijk
Philips Research
February 25, 2013
Best Practices for HTTP-CoAP Mapping Implementation
draft-castellani-core-http-mapping-07
Abstract
This draft provides reference information for HTTP-CoAP protocol
translation proxy implementors, focusing primarily on the reverse
proxy case. It details deployment options, discusses possible
approaches for URI mapping, and provides a set of guidelines and
considerations related to protocol translation.
Status of this Memo
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This Internet-Draft will expire on August 29, 2013.
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Copyright (c) 2013 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
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Cross-Protocol Usage of URIs . . . . . . . . . . . . . . . . . 4
4. HTTP to CoAP URI Mapping . . . . . . . . . . . . . . . . . . . 5
4.1. Embedded Mapping . . . . . . . . . . . . . . . . . . . . . 5
4.2. Homogeneous Mapping . . . . . . . . . . . . . . . . . . . 5
4.3. Scheme Security Mapping . . . . . . . . . . . . . . . . . 6
5. HTTP-CoAP Reverse Proxy . . . . . . . . . . . . . . . . . . . 6
5.1. Proxy Placement . . . . . . . . . . . . . . . . . . . . . 7
5.2. Response Code Translations . . . . . . . . . . . . . . . . 8
5.3. Media Type Translations . . . . . . . . . . . . . . . . . 10
5.4. Caching and Congestion Control . . . . . . . . . . . . . . 11
5.5. Cache Refresh via Observe . . . . . . . . . . . . . . . . 11
5.6. Use of CoAP Blockwise Transfer . . . . . . . . . . . . . . 12
5.7. Security Translation . . . . . . . . . . . . . . . . . . . 13
5.8. Other guidelines . . . . . . . . . . . . . . . . . . . . . 13
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
7. Security Considerations . . . . . . . . . . . . . . . . . . . 14
7.1. Traffic overflow . . . . . . . . . . . . . . . . . . . . . 14
7.2. Handling Secured Exchanges . . . . . . . . . . . . . . . . 15
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 15
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9.1. Normative References . . . . . . . . . . . . . . . . . . . 16
9.2. Informative References . . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 17
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