IFX Mail Archive: IFX> FW: IETF-FAX WG minutes at San Franci

IFX Mail Archive: IFX> FW: IETF-FAX WG minutes at San Franci

IFX> FW: IETF-FAX WG minutes at San Francisco meeting

From: McDonald, Ira (imcdonald@sharplabs.com)
Date: Wed Apr 09 2003 - 11:26:17 EDT

  • Next message: McDonald, Ira: "IFX> FW: WG Last call for draft-ietf-fax-faxservice-enum-01.txt"

    -----Original Message-----
    From: Hiroshi Tamura [mailto:tamura@toda.ricoh.co.jp]
    Sent: Tuesday, April 08, 2003 5:50 PM
    To: minutes@ietf.org
    Cc: ned.freed@mrochek.com; paf@cisco.com; ietf-fax@imc.org
    Subject: IETF-FAX WG minutes at San Francisco meeting

    Here is FAX WG minutes at San Francisco.


    Hiroshi Tamura, Co-chair of IETF-FAX WG


    Internet Fax meeting: TUESDAY, March 19 at 1300-1410 ==============================

    CHAIRS: Claudio Allocchio <Claudio.Allocchio@garr.it> Hiroshi Tamura <tamura@toda.ricoh.co.jp>

    --------------------------------------------------------------------- 0 Opening --------------------------------------------------------------------- FAX WG meeting was held on March 19, 2003. Claudio Allocchio and Hiroshi Tamura welcomed the participants and started the meeting.

    --------------------------------------------------------------------- 1 Agenda Bashing --------------------------------------------------------------------- As there were no requested changes to the proposed agenda, we proceeded along with it. See the slide "fax-0". The slide also contains brief status of some documents, which especially do not have the slide itself in this meeting.

    --------------------------------------------------------------------- 2 Service - draft-ietf-fax-service-v2-05.txt (for Draft Standard of RFC 2305) --------------------------------------------------------------------- Hiroshi Tamura reported that draft-ietf-fax-service-v2-05.txt (the revision for Draft Standard of RFC 2305) was approved by IESG and is in the RFC editor's queue. Before publication the document needs also TIFF-FX (currently draft-ietf-fax-tiff-fx-12.txt) to be ready, as there are references to the latter. Also, it was reported that DSN, which the document refers, becomes Draft Standard.

    --------------------------------------------------------------------- 3 Gateway - draft-ietf-fax-gateway-protocol-08.txt (for Propose Standard) - draft-ietf-fax-gateway-options-05.txt (for Informational) --------------------------------------------------------------------- Hiroshi Tamura reported that the two documents regarding gateways, draft-ietf-fax-gateway-protocol-08.txt (for Propose Standard) and draft-ietf-fax-gateway-options-05.txt (for Informational) need some refinement, as requested by the ADs, after the WG last call was finished. The editors are working on it, and will submit the updated versions just after the meeting.

    --------------------------------------------------------------------- 4 Addressing - draft-allocchio-gstn-04.txt (for Propose Standard) --------------------------------------------------------------------- Claudio Allocchio reported that draft-allocchio-gstn-04.txt (for Proposed Standard) has been under IESG revision. There was only a change in the abstract as a result of the discussion, as the IESG concluded it is inappropriate to have normative text (a capital MUST) in an abstract. The change will be made directly by the RFC editor during publication. Formal approval is expected by the next IESG meeting in two weeks time.

    --------------------------------------------------------------------- 5 TIFF-FX - draft-ietf-fax-tiff-fx-12.txt (for Draft Standard) --------------------------------------------------------------------- Slides: fax-3 and fax-4

    An updated version of draft-ietf-fax-tiff-fx-12.txt (for Draft Standard) was published, taking into account the comments which came in during the discussion. As Rob Buckely, one of the editors of the document, could not be present, Claudio Allocchio presented his slides on his behalf.

    The slide fax-3 contains the status of the document, combined matrix that shows features or attributes supported from the two implementation reports and the plan. In particular, 3 features were removed from the specification, as there were lacking support by implementations, while a further refinement of the interoperability report and attached matrix is under way. It is expected that the editors will present the final interoperability report within a short time after the meeting. Also, new IPR statements are being collected, and published on the IETF web site.

    The slide fax-4 explains for one comment based on the previous (tiff-fx-11) and an additional check about raised points in the document. It implies the addition of RFC 3249 (Implementers Guide) as NON normative reference. Also, ITU IPR statements will be added as a reference. Most of the other points were examined, but the editors recommended no changes to the text. Claudio Allocchio asked the WG, and it agreed with the editors recommendations. The question will be taken again on the ML, before the new version (tiff-fx-13) is published. In this new version, also, an editorial fix in section 7.2.1 will be made.

    Ned Freed, Area Director, added that also RFC 3250 (image/tiff-fx registration) and RFC 3302 (image/tiff registration), which are currently Proposed Standards, will need an editorial update before they are progressed together with tiff-fx specification to Draft Standard. Both RFCs are referred in tiff-fx document. RFC 3250 refers tiff-fx document. (After the meeting, we find RFC 3302 does not refer tiff-fx document.)

    As a note to the AD, Claudio Allocchio suggested to the ADs that some re-ordering of the interoperability reports and IPR statements pages on the WEB site, at least indexing the documents by WG, should be done. Ned Freed, agreed that there is a need for it and will take the point forward.

    --------------------------------------------------------------------- 6 IFAX service of ENUM - draft-ietf-fax-faxservice-enum-00.txt (for Proposed Standard) The updated version is at: http://www.brandenburg.com/ietf/draft-ietf-fax-faxservice-enum-01.txt --------------------------------------------------------------------- Slide: fax-2

    A new version of draft-ietf-fax-faxservice-enum-01.txt was ready for the meeting. As Kiyoshi Toyoda could not attend, the slides were presented by Yoshihiro Ida. The new version conforms to the ENUM registration syntax which would be then approved at the ENUM WG meeting the day after.

    Hiroshi Tamura and Claudio Allocchio asked for consensus on the current specification, and the WG supported it. The WG last call will be done soon as the formal updated version is published after the meeting.

    --------------------------------------------------------------------- 7 SMTP Service Extension for Content Negotiation (ESMTP-CONNEG) - draft-ietf-fax-esmtp-conneg-06.txt (for Proposed Standard) --------------------------------------------------------------------- Slide: fax-1

    Dave Crocker reported the significant changes which were made to SMTP Service Extension for Content Negotiation (draft-ietf-fax-esmtp-conneg-06.txt) to take into account the many comments an objections which came about it, especially by SMTP experts. In particular, the intention is to create a mechanism which can also work in case intermediate MTAs acting among them, i.e., when there is no direct end-to-end interactions between i-fax devices.

    The new ESMTP extension CONPERM is introduced. CONPERM allows the originator to pass conversion permission to sending MTAs in the email relaying sequence. When a sending MTA then receives CONNEG information about the recipient, it may perform a conversion. CONNEG is also the new ESMTP extension, which is the original idea in this document. With CONNEG, the response to "RCPT TO" contains capability information.

    Also, new MIME headers are introduced per message for this purpose. One is "Content-Convert", which specifies permitted conversion capability for the associated content. The other is "Content-Previous", which shows the previous representation of the content.

    There was a discussion about the fact that all features specific to internet fax should not be described in the specification. The editor and the WG agreed that the specification will be totally independent of its internet fax.

    As most of the discussions came from the wide IETF community, and the scope of the specification is not by itself restricted to i-fax, it was agreed that the first WG last call will be made on our ML, then the discussion will be opened also on the SMTP ML and to the wider IETF lists.

    (As there are some comments before the meeting and the editors agreed to modify some of them, the updated I-D will be required before FAX WG last call.)

    --------------------------------------------------------------------- 8 Timely-Delivery - No document now (for Proposed Standard) --------------------------------------------------------------------- Slide: fax-5

    Dave Crocker presented the new approach to the timely delivery problem. The old specification was dismissed at our previous (Atlanta) meeting, as its implementation would have impacted in a wide way on the existing infrastructure to expect for a reasonable level of support.

    Thus, he now tries to obtain performance from the existing infrastructure, and obtain a timely receipt from the user agent involved in the final transaction, using MDN extensions ("Receipt-time"). In order for infrastructure to support Timely-delivery performance there are various possible solutions. Possibly, a separate TCP port where messages have an implied timely delivery request, or upgrading the core specifications to make mandatory some current options (Deliverby), and/or adding SRV record flags where MTA support "APT" (Accountable Predictable Timely) mail service.

    The WG briefly asked for clarification on the different options, and the new internet-draft will soon be requested to prepare and it will try to clarify the different scenarios of possible implementation.

    --------------------------------------------------------------------- 9 FFPIM - draft-ietf-fax-ffpim-01.txt (for Proposed Standard) --------------------------------------------------------------------- Dave Crocker explained that FFPIM is not modified since the last meeting, as it depends on both ESMTP-CONNEG and Timely-delivery. He also told it is easy to complete after two documents are finished, as it refers only documents defining technical documents and it has little techinical issues itself. Just waiting for completion of the two documents.

    --------------------------------------------------------------------- 10 Closing --------------------------------------------------------------------- At the end of the meeting, the co-chairs proposed that, unless there are major specific technical issues to be solved, this was the last physical meeting of the FAX WG. The ML will be used to discuss remaining issues, and for last call of pending documents. The co-chairs thanked all the participants to the WG meeting, present and past, for their efforts and support during these years. See final page of the slide "fax-0".

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