Location-to-Service Translation (LoST) Service List Boundary Extension
RFC 6197
Internet Engineering Task Force (IETF) K. Wolf
Request for Comments: 6197 nic.at
Category: Experimental April 2011
ISSN: 2070-1721
Location-to-Service Translation (LoST) Service List Boundary Extension
Abstract
Location-to-Service Translation (LoST) maps service identifiers and
location information to service contact URIs. If a LoST client wants
to discover available services for a particular location, it will
perform a <listServicesByLocation> query to the LoST server.
However, the LoST server, in its response, does not provide context
information; that is, it does not provide any additional information
about the geographical region within which the returned list of
services is considered valid. Therefore, this document defines a
Service List Boundary that returns a local context along with the
list of services returned, in order to assist the client in not
missing a change in available services when moving.
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 Engineering
Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been approved for
publication by the Internet Engineering Steering Group (IESG). Not
all documents approved by the IESG are 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/rfc6197.
Wolf Experimental [Page 1]
RFC 6197 serviceListBoundary April 2011
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Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................4
3. LoST Extensions .................................................4
3.1. Extensions to <listServicesByLocation> .....................4
3.2. Retrieving the <serviceListBoundary> via
<getServiceListBoundary> ...................................7
3.3. <serviceListBoundary> ......................................8
3.4. Implementation Considerations ..............................9
3.4.1. Server Side .........................................9
3.4.2. Client Side .........................................9
4. Security and Privacy Considerations ............................10
5. IANA Considerations ............................................10
5.1. Relax NG Schema Registration ..............................10
5.2. Namespace Registration ....................................13
6. Acknowledgements ...............................................14
7. References .....................................................14
7.1. Normative References ......................................14
7.2. Informative References ....................................15
Wolf Experimental [Page 2]
RFC 6197 serviceListBoundary April 2011
1. Introduction
Since the LoST protocol [RFC5222] employs the Service Boundary
concept in order to avoid having clients continuously trying to
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