Delay-Tolerant Networking Metadata Extension Block
RFC 6258
| Document | Type |
RFC - Experimental
(May 2011; No errata)
Was draft-irtf-dtnrg-bundle-metadata-block (dtnrg RG)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IRTF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | IRTF state | (None) | |
| Consensus Boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | RFC 6258 (Experimental) | |
| Telechat date | |||
| Responsible AD | Peter Saint-Andre | ||
| IESG note | IRTF submission. Elwyn Davies (elwynd@dial.pipex.com) is the document shepherd. | ||
| Send notices to | elwynd@dial.pipex.com | ||
Internet Research Task Force (IRTF) S. Symington
Request for Comments: 6258 The MITRE Corporation
Category: Experimental May 2011
ISSN: 2070-1721
Delay-Tolerant Networking Metadata Extension Block
Abstract
This document defines an extension block that may be used with the
Delay-Tolerant Networking (DTN) Bundle Protocol. This Metadata
Extension Block is designed to carry additional information that DTN
nodes can use to make processing decisions regarding bundles, such as
deciding whether to store a bundle or determining to which nodes to
forward a bundle. The metadata that is carried in a metadata block
must be formatted according to the metadata type that is identified
in the block's metadata type field. One specific metadata type, for
carrying URIs as metadata, is defined in this document. Other
metadata types may be defined in separate documents. This document
is a product of the Delay Tolerant Networking Research Group and has
been reviewed by that group. No objections to its publication as an
RFC were raised.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for examination, experimental implementation, and
evaluation.
This document defines an Experimental Protocol for the Internet
community. This document is a product of the Internet Research Task
Force (IRTF). The IRTF publishes the results of Internet-related
research and development activities. These results might not be
suitable for deployment. This RFC represents the consensus of the
Delay-Tolerant Networking Research Group of the Internet Research
Task Force (IRTF). Documents approved for publication by the IRSG
are not a candidate for any level of Internet Standard; see Section 2
of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6258.
Symington Experimental [Page 1]
RFC 6258 DTN Metadata Extension Block May 2011
Copyright Notice
Copyright (c) 2011 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
(http://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.
Table of Contents
1. Introduction ....................................................2
1.1. Requirements Language ......................................4
2. Metadata Block Format ...........................................4
3. Metadata Block Processing .......................................5
3.1. Bundle Transmission ........................................6
3.2. Bundle Forwarding ..........................................6
3.3. Bundle Reception ...........................................6
4. Predefined Metadata Types .......................................6
4.1. URI Metadata Type ..........................................6
4.2. Private Metadata Types .....................................7
5. Security Considerations .........................................7
6. IANA Considerations .............................................8
6.1. Metadata Type Codes ........................................8
6.2. Block Type Code for the Metadata Block .....................9
7. References ......................................................9
7.1. Normative References .......................................9
7.2. Informative References .....................................9
1. Introduction
This document defines an extension block that may be used with the
Bundle Protocol [RFC5050] within the context of a Delay-Tolerant
Networking architecture [RFC4838]. The DTN Bundle Protocol [RFC5050]
defines the bundle as its protocol data unit. This document defines
a bundle block called a "metadata block". This block is designed to
carry additional information that DTN nodes can use to make
processing decisions regarding bundles.
The metadata block has been deliberately defined to be flexible
enough that it would be capable of supporting a variety of metadata
types and formats. Indeed, the only restriction imposed on the
metadata to be used is that its type and format be predefined and
registered (if public) so that it can be parsed and processed by DTN
nodes that support metadata of that type. Section 4 defines a
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