Status Reports ECRIT WG

Report September 2007

Date: 26th September 2007

Upcoming IETF Meeting

The next ECRIT (IETF 70) meeting is scheduled for Dec 2-7, Vancouver B.C. See: http://www3.ietf.org/meetings/70-IETF.html

Other information:

There is a new Web-based tool that can be used now to submit a new draft, see: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04384.html

The meeting minutes from the last IETF69 are here: http://www3.ietf.org/proceedings/07jul/minutes/ecrit.txt In addition, there is some progress on some of the wg related documents.

Document Status

In the RFC Editor's Queue

Requirements for Emergency Context Resolution with Internet Technologies

Draft is moving through the "RFC Ed Queue" - seems close to being published: http://www.ietf.org/internet-drafts/draft-ietf-ecrit-requirements-13.txt

A Uniform Resource Name (URN) for Services

Draft has moved to the "RFC Ed Queue" as of 8/21/07: http://www.cs.columbia.edu/sip/draft/service/draft-ietf-ecrit-service-urn-07.txt

Security Threats and Requirements for Emergency Call Marking and Mapping

The new (-05) Draft version has moved to the "RFC Ed Queue" as of 9/12/07. http://www.ietf.org/internet-drafts/draft-ietf-ecrit-security-threats-05.txt

PROTO Documents

The document shepherding process is described in RFC 4858.

LoST: A Location-to-Service Translation Protocol

PROTO writeup has been sent to the Area Directors and the IESG to complete the work: http://www.nabble.com/PROTO-write-up-for-draft-ietf-ecrit-lost-06.txt-t4511617.html

Location-to-URL Mapping Architecture and Framework

PROTO writeup has been sent to the Area Directors and the IESG to complete work. http://www1.ietf.org/mail-archive/web/ecrit/current/msg04382.html

A Dynamic Host Configuration Protocol (DHCP) based Location-to-Service Translation Protocol (LoST) Discovery Procedure

PROTO writeup has been sent to the Area Directors and the IESG to complete work. http://www1.ietf.org/mail-archive/web/ecrit/current/msg04379.html

Other WG Drafts

The (two) remaining ECRIT WG Drafts, below, have been updated.

Framework for Emergency Calling using Internet Multimedia

New Draft version published as of 9/19/07. Needs additional WG review. http://www.ietf.org/internet-drafts/draft-ietf-ecrit-framework-03.txt

Best Current Practice for Communications Services in support of Emergency Calling

New Draft version published as of 9/19/07. Needs additional WG review. http://www.ietf.org/internet-drafts/draft-ietf-ecrit-phonebcp-02.txt

Individual Drafts

Location Hiding: Problem Statement and Requirements

An updated draft has been produced, see: http://tools.ietf.org/wg/ecrit/draft-schulzrinne-ecrit-location-hiding-requirements-01.txt

Last action on this was: "Initiate discussion after the main WG items have been progressed."

Action: ECRIT chairs to determine level of effort, since other items now progressed.

Extensions to the Emergency Services Architecture for dealing with Unauthenticated and Unauthorized Devices

Initial draft version has been submitted. http://tools.ietf.org/wg/ecrit/draft-schulzrinne-ecrit-unauthenticated-access-00.txt

There is a IEEE liaison msg. which references the above draft, see: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04361.html

Emergency Call Marking

From last report, it was stated: "The initially assumed solution, http://tools.ietf.org/wg/sip/draft-rosenberg-sip-ua-loose-route-01.txt, was not accepted at the IETF meeting."

Some discussion has taken place entitled "UA Loose Routing", see: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04308.html

And "call marking", see: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04310.html http://www1.ietf.org/mail-archive/web/ecrit/current/msg04319.html

The agreed approach is described in this mail: http://www1.ietf.org/mail-archive/web/sip/current/msg20511.html Brian indicated that the resolution can also be found in the latest phone BCP draft version.

A related topic that is still under discussion is the question on how to prevent fraud in the context of location hiding. See below:

Proxy Authentication of the Emergency Status of SIP Calls

From last report, it was stated, "A lot of the discussions in the last few weeks focused on http://tools.ietf.org/wg/ecrit/draft-barnes-ecrit-auth-00.txt Action Item: Summary needs to be compiled."

Action: Need to determine next steps.

Overview of the IETF Emergency Services Architecture

Restated from the last report: "The following document gives an overview of the emergency services architecture: http://tools.ietf.org/wg/ecrit/draft-tschofenig-ecrit-architecture-overview-00.txt

It is meant to be read by members from other SDOs and regulators."

DSL Forum Documents

The following referenced document were made available from the DSL Forum. An initial review was made by Hannes Tschofenig, see: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04320.html

Additional comments have been logged to the list, see: http://www1.ietf.org/mail-archive/web/ecrit/current/mail3.html

Alignment between IETF and 3GPP Emergency Services Architecture

From the last report, "[Hannes]... has the action item to schedule a conference call within the IETF ECRIT WG and subsequently between IETF ECRIT and the 3GPP to discuss a possible alignment."

3rd SDO Emergency Services Workshop

The next workshop (ESW03-07) is scheduled for a 3 day meeting (October 30st - November 1st) in Brussels/Belgium (3 day mtg.).

Meeting information can be found here: http://www.emergency-services-coordination.info/2007Nov/

A first version of the agenda is also available: https://lists.cs.columbia.edu/pipermail/es-coordination/2007-August/000050.html

Report August 2007

Date: 16th August 2007

ECRIT WG Status Update

During the last month there was the IETF meeting. The meeting minutes are here: http://www3.ietf.org/proceedings/07jul/minutes/ecrit.txt Still, there is some progress on the documents.

At the IETF#69 meeting we also had a meeting on authority-to-citizen communication. Information can be found here: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/EarlyWarningBarBOF

Requirements for Emergency Context Resolution with Internet Technologies

Draft is in "RFC Ed Queue".

A Uniform Resource Name (URN) for Services

A new draft version has been submitted based on received IESG comments: http://www.cs.columbia.edu/sip/draft/service/draft-ietf-ecrit-service-urn-07.txt

Henning posted a list of changes: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04200.html

Security Threats and Requirements for Emergency Call Marking and Mapping

The Gen-ART review comments need to be addressed. Revised ID is needed. Will be provided within a week.

LoST

A WGLC was started again based on the WGLC received during the first WGLC. The recent draft update reflected the comments during the previous WGLC: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04186.html

See

http://www1.ietf.org/mail-archive/web/ecrit/current/msg04188.html

IPR claims have been disclosed: http://www1.ietf.org/mail-archive/web/ecrit/current/msg04189.html http://www1.ietf.org/mail-archive/web/ecrit/current/msg04190.html

LoST Mapping Architecture

A WGLC has been started recently. See http://www1.ietf.org/mail-archive/web/ecrit/current/msg04194.html

DHCP-based LoST Discovery

A WGLC for the DHCP-based LoST discovery procedure based on the -02 version of the draft. See http://www1.ietf.org/mail-archive/web/ecrit/current/msg04195.html

This is also the 2nd WGLC.

Phone BCP & Framework

Richard Barnes, Alexander Mayrhofer, Barbara Stark, and James Winterbottom reviewed the documents. Thanks you.

Steve Norrey's review is still pending.

Based on the review comments updated documents will be submitted.

Location Hiding

No progress on this particular item during the last month. Here is the draft: http://tools.ietf.org/wg/ecrit/draft-schulzrinne-ecrit-location-hiding-requirements-00.txt

Action Item: Initiate discussion after the main WG items have been progressed.

Unauthenticated Emergency Services

Initial draft version is available and will be submitted in the next few days.

Emergency Call Marking

The initially assumed solution http://tools.ietf.org/wg/sip/draft-rosenberg-sip-ua-loose-route-01.txt was not accepted at the IETF meeting.

Action Item: Initiate discussion

Proxy Authentication of the Emergency Status of SIP Calls

A lot of the discussions in the last few weeks focused on http://tools.ietf.org/wg/ecrit/draft-barnes-ecrit-auth-00.txt

Action Item: Summary needs to be compiled.

Overview of the IETF Emergency Services Architecture

The following document gives an overview of the emergency services architecture: http://tools.ietf.org/wg/ecrit/draft-tschofenig-ecrit-architecture-overview-00.txt

It is meant to be read by members from other SDOs and regulators.

Alignment betwetween IETF and 3GPP Emergency Services Architecture

I got the action item to schedule a conference call within the IETF ECRIT WG and subsequently between IETF ECRIT and the 3GPP to discuss a possible alignment.

3rd SDO Emergency Services Workshop

The next workshop is scheduled for 3 days (October 30st - November 1st) in Brussels/Belgium. Information can be found here: http://www.emergency-services-coordination.info/2007Nov/

A first version of the agenda is also available: https://lists.cs.columbia.edu/pipermail/es-coordination/2007-August/000050.html

• Tuesday, October 30:
  • Tutorials about IETF, 3GPP and NENA architectures
  • u2010 meeting the standards

• Wednesday, October 31:
  • Policy Panel
  • Status Updates by various SDOs
• Thursday, November 1:
  • Status Updates (con't)
  • Authority-to-Citizen Communication (Requirements, What's available now)

Report July 2007

Date: 11th July 2007

Working Group Items

LoST

During the WGLC we have received a number of comments. Then, we delayed the completion of the work because of the location hiding discussions.

Now, you can find the latest version of the document at: http://www.tschofenig.com/svn/draft-ietf-ecrit-lost/draft-ietf-ecrit-lost-06.txt

We have also updated the DHCP-based LoST discovery draft (based on the comments we received from the DHC working group). The document can be found here: http://www.tschofenig.com/svn/draft-tschofenig-dhc-lost-discovery/draft-ietf-ecrit-dhc-lost-discovery-02.txt

Framework, Phone BCP, Mapping Architecture

These two documents have not made too much progress. A new versions of the ECRIT framework draft with minor changes is, however, available: http://tools.ietf.org/html/draft-ietf-ecrit-framework-02

A new version with minor changes of the mapping architecture draft is also available: http://tools.ietf.org/html/draft-ietf-ecrit-mapping-arch-02

Requirements, Service URN and Security Threats

The requirements document has made it to the RFC Editor's Queue.

The Service URN draft http://tools.ietf.org/html/draft-ietf-ecrit-service-urn is IESG Evaluation::Revised ID Needed state. The Ecrit Security Threats draft http://tools.ietf.org/html/draft-ietf-ecrit-security-threats is in IESG Evaluation::AD Followup state.

Non-Working Group Items

Location Hiding

After the unsuccessful attempt to quickly resolve the aspect of location hiding we decided to do the work independently. A requirements draft was published: http://tools.ietf.org/html/draft-schulzrinne-ecrit-location-hiding-requirements-00.txt

A number of solution aspects have been captured at: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/LocationHiding

Unauthenticated Network Access

No progress has been made on this item.

Ecrit Architecture Overview

A new draft with a high-level overview of the IETF emergency services architecture has been published: http://tools.ietf.org/html/draft-tschofenig-ecrit-architecture-overview-00.txt

Purpose: Introduce the IETF emergency services architecture to non-emergency services experts Focus of the document: Sharing of responsibilities between the different players in an emergency services environment.

Proxy Authentication of the Emergency Status of SIP Calls

Richard Barnes submitted a draft and is going to introduce it to the working group within the next few days: http://tools.ietf.org/html/draft-barnes-ecrit-auth-00.txt

Liaisons and Interworking with other SDOs

3GPP

During the IETF 3GPP phone conference call Hannes agreed to schedule a meeting between IETF and 3GPP emergency services experts in order to evaluate how to work on a harmonized architecture for emergency services.

OMA

The OMA has decided to start work on SIP and location. It needs to be investigated what the impacts for the ECRIT working group are. See http://www1.ietf.org/mail-archive/web/ecrit/current/msg04058.html

Report June 2007

Date: 2nd June 2007

We have been sleeping now for a month. Now it is time to start our work again.

There are essentially the following major items to talk about:

Working Group Items

The requirements draft, the service URN draft and the security threats draft are in IESG processing and doing fine.

LoST is essentially done (unless we want to add a new location profile to provide the location hiding aspect).

The phone BCP, mapping architecture and the framework documents are impacted by the ongoing architecture discussions. We could finish these documents based on our current understanding of the architecture and work on documents covering the other aspects later (also since extensions are potentially outside the current charter).

Call for consensus regarding marking of emergency calls may be necessary.

Location Hiding

This aspect has caused a lot of discussion and we have seen many, many solution proposals. At the end the group focused on a small number of them that can be found here: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/LocationHiding

To restart the discussion Henning and myself have written a short draft that can be found here: http://www.tschofenig.com/twiki/pub/EmergencyServices/LocationHiding/draft-schulzrinne-ecrit-lost-in-held-00.txt

We intentially did not publish the draft for the following reasons:

• Many working group members have very actively contributed to the discussions and it would be unfair to publish the document with our names on it only.
• There are many solutions and many variations of the solutions possible. We would like to avoid 15+ draft submissions

to the working group since this would only slow down the progress.

Given that more discussions are necessary I would suggest to finish LoST as is and then deal with this aspect as an extension. After the discussions progress sufficiently the chairs will pick some draft authors to compile a write-up of the discussion.

Unauthenticated Network Access

This topic has not seen enough attention from the group. I have sent two mails about it in the past to raise a discussion. It seems that many SDOs develop solutions for the unauthenticated network access case, including IEEE, 3GPP, 3GPP2 and TISPAN.

We believe we should also have a story for it. Since it will take some time to discuss these aspects it might be reasonable to decouple them from the current framework and phone BCP discussion. It is also not sure whether the regulator will demand support for it.

Liaisons and Interworking with other SDOs

3GPP

It would be good to figure out how to align our work with the 3GPP emergency architecture work, if possible.

IEEE

We need reviewers for their documents: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/ReviewIEEEDocuments

A discussion about the open issues from the IETF ECRIT / IEEE Information Sharing Event @ IETF#68 is also needed. I will ping Stephen McCann about this issue.

ATIS ESIF

We haven't responded to the ATIS ESIF document liaison request.

The last two items need to be done in coorperation with the GEOPRIV working group.

Next SDO Emergency Services Workshop

Planning for the next workshop will start soon. Status updates will be sent to this mailing list https://lists.cs.columbia.edu/cucslists/listinfo/es-coordination.

Report 6th May 2007

WG documents

1) LoST

Draft update necessary with respect to location profiles. It seems to be necessary to support a location profile that can express polygons.

ACTION ITEM: Hannes to start draft update asap.

2) Phone BCP

The document requires more reviews and more work. For example, text from SIP Location Conveyance and from PIDF-LO profile has been moved to this document.

A couple of expert reviews are also pending.

ACTION ITEM: Hannes to ensure that reviews are provided.

3) Framework

The document also requires more work given that it has not seen enough review. The location hiding discussion needs to be reflected in the document as well.

After another draft update the chairs will solicit further review requests.

A couple of expert reviews are also pending.

ACTION ITEM: Hannes to ensure that reviews are provided.

4) DHCP-based LoST discovery

Review comments from the DHC group have been provided and another WGLC (together with the DHC group) is necessary.

Here is my review request and 2 responses:

http://www1.ietf.org/mail-archive/web/dhcwg/current/msg07234.html

http://www1.ietf.org/mail-archive/web/ecrit/current/msg03735.html

http://www1.ietf.org/mail-archive/web/dhcwg/current/msg07236.html

ACTION ITEM: Marc to initiate a WGLC after the draft update is available.

5) Mapping Architecture

This document seems fairly complete and passed WGLC already. Unfortunately, we haven't seen a lot of review comments. 2 expert reviews are also missing.

ACTION ITEM: Marc to find a few reviewers.

Review of IEEE documents

IEEE 802.11k review complete. More reviewers for other documents solicited. A webpage for the reviews is available here: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/ReviewIEEEDocuments

ACTION ITEM: Hannes to check with Robert Sparks regarding sharing the workload.

Hiding (Partial) Locations Discussion

After a long discussion we have a couple of solution proposals: http://www.tschofenig.com/twiki/bin/view/EmergencyServices/LocationHiding

We need to decide for a particular approach before we update our documents.

ACTION ITEM: Hannes to make a call for consensus

Follow-Up regarding "IETF ECRIT / IEEE Information Sharing Event @ IETF#68"

ACTION ITEM: Hannes to initiate a discussion

ATIS ESIF Document review

Document review and response to liaison request still not done.

ACTION ITEM: Hannes & Marc & Robert to initiate some actions.

Charter Update

The charter update of February still hasn't been provided. In the meanwhile it is pretty obsolete since another charter update is required.

ACTION ITEM: Hannes to submit a new charter update.

Follow-Up "Interact with the IAB"

The IAB Tech Chat on Emergency Services presentation took place on the 28th February 2007. See slides here: http://www.tschofenig.com/twiki/pub/EmergencyServices/IetfEcritRoadMap/Emergency-Services.ppt

Not quite clear what needs to be done.

ACTION ITEM: Hannes to figure out what has to be done.

Report 10th Jan 2007

http://www1.ietf.org/mail-archive/web/ecrit/current/msg03023.html

Report 6th Aug 2006

http://www1.ietf.org/mail-archive/web/ecrit/current/msg02365.html

-- HannesTschofenig - 02 Jun 2007