CoRE Resource Directory Extensions
draft-amsuess-core-resource-directory-extensions-04
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Christian Amsüss
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2020-11-02
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CoRE C. Amsüss
Internet-Draft 2 November 2020
Intended status: Experimental
Expires: 6 May 2021
CoRE Resource Directory Extensions
draft-amsuess-core-resource-directory-extensions-04
Abstract
A collection of extensions to the Resource Directory
[I-D.ietf-core-resource-directory] that can stand on their own, and
have no clear future in specification yet.
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
Task Force (IETF). Note that other groups may also distribute
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and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 6 May 2021.
Copyright Notice
Copyright (c) 2020 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 carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Simplified BSD License text
as described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Simplified BSD License.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Reverse Proxy requests . . . . . . . . . . . . . . . . . . . 3
2.1. Discovery . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Registration . . . . . . . . . . . . . . . . . . . . . . 3
2.2.1. Registration updates . . . . . . . . . . . . . . . . 4
2.2.2. Proxy behavior . . . . . . . . . . . . . . . . . . . 4
2.2.3. On-Demand proxying . . . . . . . . . . . . . . . . . 5
2.2.4. Multiple upstreams . . . . . . . . . . . . . . . . . 5
2.2.5. Examples . . . . . . . . . . . . . . . . . . . . . . 5
2.2.6. Notes on stability and maturity . . . . . . . . . . . 7
2.2.7. Security considerations . . . . . . . . . . . . . . . 7
3. Infinite lifetime . . . . . . . . . . . . . . . . . . . . . . 7
3.1. Example . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Lookup across link relations . . . . . . . . . . . . . . . . 8
4.1. Example . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Lifetime Age . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Zone identifier introspection . . . . . . . . . . . . . . . . 9
6.1. Example . . . . . . . . . . . . . . . . . . . . . . . . . 10
7. Proxying multicast requests . . . . . . . . . . . . . . . . . 10
7.1. Example . . . . . . . . . . . . . . . . . . . . . . . . . 11
8. Opportunistic RD . . . . . . . . . . . . . . . . . . . . . . 11
8.1. Applications . . . . . . . . . . . . . . . . . . . . . . 14
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.1. Normative References . . . . . . . . . . . . . . . . . . 14
9.2. Informative References . . . . . . . . . . . . . . . . . 15
Appendix A. Change log . . . . . . . . . . . . . . . . . . . . . 16
Appendix B. Acknowledgements . . . . . . . . . . . . . . . . . . 17
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 17
1. Introduction
This document pools some extensions to the Resource Directory
[I-D.ietf-core-resource-directory] that might be useful but have no
place in the original document.
They might become individual documents for IETF submission, simple
registrations in the RD Parameter Registry at IANA, or grow into a
shape where they can be submitted as a collection of tools.
At its current state, this draft is a collection of ideas.
[ This document is being developed at https://gitlab.com/chrysn/
resource-directory-extensions (https://gitlab.com/chrysn/resource-
directory-extensions). ]
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2. Reverse Proxy requests
When a registrant registers at a Resource Directory, it might not
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