A LoST extension to return complete and similar location info

Document Type Expired Internet-Draft (ecrit WG)
Authors Roger Marshall  , Jeff Martin  , Brian Rosen 
Last updated 2020-01-24 (latest revision 2019-07-23)
Stream IETF
Intended RFC status Proposed Standard
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Waiting for WG Chair Go-Ahead (wg milestone: Aug 2017 - Submit ‘A LoST exten... )
Revised I-D Needed - Issue raised by WG
Document shepherd Henning Schulzrinne
IESG IESG state Expired
Consensus Boilerplate Yes
Telechat date
Responsible AD (None)
Send notices to "Allison Mankin" <allison.mankin@gmail.com>, Henning Schulzrinne <hgs@cs.columbia.edu>

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document introduces a new way to provide returned location information in LoST responses that is either of a completed or similar form to the original input civic location, based on whether valid or invalid civic address elements are returned within the findServiceResponse message. This document defines a new extension to the findServiceResponse message within the LoST protocol [RFC5222] that enables the LoST protocol to return a completed civic address element set for a valid location response, and one or more suggested sets of similar location information for invalid LoST responses. These two types of civic addresses are referred to as either "complete location" or "similar location", and are included as a compilation of CAtype xml elements within the existing LoST findServiceResponse message structure.


Roger Marshall (roger.marshall@comtechtel.com)
Jeff Martin (jeff.martin@comtechtel.com)
Brian Rosen (br@brianrosen.net)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)