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Internet Architecture Board (IAB)                     S. Trowbridge, Ed.
Request for Comments: 6756                                Alcatel-Lucent
Obsoletes: 3356                                             E. Lear, Ed.
Category: Informational                                    Cisco Systems
ISSN: 2070-1721                                          G. Fishman, Ed.
                                               Pearlfisher International
                                                         S. Bradner, Ed.
                                                      Harvard University
                                                          September 2012

                  Internet Engineering Task Force and
       International Telecommunication Union - Telecommunication
            Standardization Sector Collaboration Guidelines

Abstract

   This document provides guidance to aid in the understanding of
   collaboration on standards development between the Telecommunication
   Standardization Sector of the International Telecommunication Union
   (ITU-T) and the Internet Engineering Task Force (IETF) of the
   Internet Society (ISOC).  It is an update of and obsoletes RFC 3356.
   The updates reflect changes in the IETF and ITU-T since RFC 3356 was
   written.  The bulk of this document is common text with ITU-T A
   Series Supplement 3 (07/2012).

   Note: This was approved by TSAG on 4 July 2012 as Supplement 3 to the
   ITU-T A-Series of Recommendations.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Architecture Board (IAB)
   and represents information that the IAB has deemed valuable to
   provide for permanent record.  It represents the consensus of the
   Internet Architecture Board (IAB).  Documents approved for
   publication by the IAB 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/rfc6756.

Copyright Notice

   Copyright (c) 2012 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 and Scope ..........................................4
   2. Guidance on Collaboration .......................................5
      2.1. How to Interact on ITU-T or IETF Work Items ................5
           2.1.1. How the ITU-T Is Informed about Existing
                  IETF Work Items .....................................6
           2.1.2. How the IETF Is Informed about Existing
                  ITU-T Work Items ....................................6
           2.1.3. How the ITU-T Is Informed about Proposed New
                  IETF Work Items .....................................6
           2.1.4. How the IETF Is Informed about ITU-T Work Items .....7
      2.2. Representation .............................................7
           2.2.1. IETF Recognition at ITU-T ...........................7
           2.2.2. ITU-T Recognition at ISOC/IETF ......................7
      2.3. Communication outside of Meetings ..........................8
      2.4. Mailing Lists ..............................................8
      2.5. Document Sharing ...........................................9
           2.5.1. Contributions and Liaison Statements from
                  the IETF to ITU-T ...................................9
           2.5.2. Contributions and Liaison Statements from
                  the ITU-T to IETF ..................................10
           2.5.3. ITU-T and IETF .....................................10
      2.6. Simple Cross Referencing ..................................11
      2.7. Preliminary Work Efforts ..................................11
      2.8. Additional Items ..........................................11
           2.8.1. IETF Information That May Be Useful to
                  ITU-T Participants .................................11
           2.8.2. ITU-T Information That May Be Useful to
                  IETF Participants ..................................12
   3. Security Considerations ........................................13
   4. Acknowledgements ...............................................13
   5. References .....................................................13
      5.1. Normative References ......................................13
      5.2. Informative References ....................................14
   6. Changes since RFC 3356 .........................................15
   7. IAB Members at the Time of Approval ............................15

1.  Introduction and Scope

   This document provides non-normative guidance to aid in the
   understanding of collaboration on standards development between the
   Telecommunication Standardization Sector of the International
   Telecommunication Union (ITU-T) and the Internet Engineering Task
   Force (IETF) of the Internet Society (ISOC).  Early identification of
   topics of mutual interest will allow for constructive efforts between
   the two organizations based on mutual respect.

   In the IETF, work is done in working groups (WGs), mostly through
   open, public mailing lists rather than face-to-face meetings.  WGs
   are organized into areas, each area being managed by two co-area
   directors.  Collectively, the area directors comprise the Internet
   Engineering Steering Group (IESG).

   In the ITU-T, work is defined by study Questions which are worked on
   mostly through meetings led by rapporteurs (these are sometimes
   called "rapporteur's group" meetings).  Questions are generally
   grouped within working parties (WPs) led by a WP chairman.  Working
   parties report to a parent study group (SG) led by an SG chairman.
   Work may also be conducted in ITU-T focus groups (see Section 2.7).

   To foster ongoing communication between the ITU-T and IETF, it is
   important to identify and establish contact points within each
   organization.  Contact points may include:

   1. ITU-T Study Group Chairman and IETF Area Director

      An IETF area director is the individual responsible for overseeing
      a major focus of activity with a scope similar to that of an ITU-T
      study group chairman.  These positions are both relatively long-
      term (of several years) and offer the stability of contact points
      between the two organizations for a given topic.

   2. ITU-T Rapporteur and IETF Working Group Chair

      An IETF working group chair is an individual who is assigned to
      lead the work on a specific task within one particular area with a
      scope similar to that of an ITU-T rapporteur.  These positions are
      working positions (of a year or more) that typically end when the
      work on a specific topic ends.  Collaboration here is very
      beneficial to ensure the actual work gets done.

   3. Other Contact Points

      It may be beneficial to establish additional contact points for
      specific topics of mutual interest.  These contact points should
      be established early in the work effort, and in some cases the
      contact point identified by each organization may be the same
      individual.  ITU-T has an additional level of management, the
      working party chairman.  From time to time, it may be beneficial
      for this person to exchange views with IETF working group chairs
      and area directors.

   Note: The current list of IETF area directors and working group
   chairs can be found in the IETF working group charters.  The current
   ITU-T study group chairmen and rapporteurs are listed on the ITU-T
   study group web pages.

2.  Guidance on Collaboration

   This section describes how the existing processes within the IETF and
   ITU-T may be utilized to enable collaboration between the
   organizations.

2.1.  How to Interact on ITU-T or IETF Work Items

   Study groups that have identified work topics that are related to the
   Internet Protocol (IP) should evaluate the relationship with topics
   defined in the IETF. Current IETF working groups and their charters
   (IETF definition of the scope of work) are listed in the IETF
   archives (see Section 2.8.1).

   A study group may decide that development of a Recommendation on a
   particular topic may benefit from collaboration with the IETF.  The
   study group should identify this collaboration in its work plan
   (specifically in that of each Question involved), describing the goal
   of the collaboration and its expected outcome.

   An IETF working group should also evaluate and identify areas of
   relationship with the ITU-T and document the collaboration with the
   ITU-T study group in its charter.

   The following sections outline a process that can be used to enable
   each group to be informed about the other's new work items.

2.1.1.  How the ITU-T Is Informed about Existing IETF Work Items

   The responsibility is on individual study groups to review the
   current IETF working groups to determine if there are any topics of
   mutual interest.  Working group charters and active Internet-Drafts
   can be found on the IETF web site (http://datatracker.ietf.org/wg/).
   If a study group identifies a common area of work, the study group
   leadership should contact both the IETF working group chair and the
   area director(s) responsible.  This may be accompanied by a formal
   liaison statement (see Section 2.3).

2.1.2.  How the IETF Is Informed about Existing ITU-T Work Items

   The IETF through its representatives will review the current work of
   the various study groups from time to time.  Each ITU-T study group's
   web page on the ITU-T web site contains its current list of Questions
   as well as its current work programme.  When an area or working group
   identifies a common area of work, the matter is referred to
   appropriate working group chairs and area directors, where they may
   consider sending a liaison statement to the appropriate study group.

2.1.3.  How the ITU-T Is Informed about Proposed New IETF Work Items

   The IETF maintains a mailing list for the distribution of proposed
   new work items among standards development organizations.  Many such
   items can be identified in proposed Birds-of-a-Feather (BOF)
   sessions, as well as draft charters for working groups.  The IETF
   forwards all such draft charters for all new and revised working
   groups and BOF session announcements to the IETF new-work mailing
   list.  An ITU-T mailing list is subscribed to this list. Leadership
   of study groups may subscribe to this ITU-T mailing list, which is
   maintained by the Telecommunication Standardization Bureau (TSB).
   Members of the SG-specific listname may include the SG chairman, SG
   vice-chairmen, working party chairmen, concerned rapporteurs, other
   experts designated by the SG, and the SG Counsellor.  This will
   enable the SGs to monitor the new work items for possible overlap or
   interest to their study group.  It is expected that this mailing list
   will see a few messages per month.

   Each SG chairman, or designated representative, may provide comments
   on these charters by responding to the IESG mailing list at
   iesg@ietf.org clearly indicating their ITU-T position and the nature
   of their concern.  Plain-text email is preferred on the IESG mailing
   list.

   It should be noted that the IETF turnaround time for new working
   group charters can be as short as two weeks.  As a result, the
   mailing list should be consistently monitored.

2.1.4.  How the IETF Is Informed about ITU-T Work Items

   The ITU-T accepts new areas of work through the creation or update of
   Questions and these can be found on the ITU-T study group web pages.
   In addition, the ITU-T work programme is documented on each ITU-T
   study group's web page on the ITU-T web site.

   Study groups send updates to the IETF new-work mailing list as new
   Questions are first drafted or created, terms of reference for
   Questions are first drafted or updated, or otherwise when there is
   reason to believe that a particular effort might be of interest to
   the IETF.  Area directors or WG chairs should provide comments
   through liaison statements or direct email to the relevant SG
   chairman in cases of possible overlap or interest.

2.2.  Representation

   ISOC, including its standards body IETF, is a Sector Member of the
   ITU-T.  As a result, ISOC delegates are afforded the same rights as
   other ITU-T Sector Members (see Section 2.2.1).  Conversely, ITU-T
   delegates may participate in the work of the IETF as representatives
   of the ITU-T (see Section 2.2.2).  To promote collaboration, it is
   useful to facilitate communication between the organizations as
   further described below.

2.2.1.  IETF Recognition at ITU-T

   Experts and representatives from the IETF that are chosen by IETF
   leadership normally participate in ITU-T meetings as ISOC delegates.
   The ISOC focal point will facilitate registration and verification of
   these people, as appropriate.

2.2.2.  ITU-T Recognition at ISOC/IETF

   ITU-T study group chairmen can authorize one or more members to
   attend an IETF meeting as an official ITU-T delegate speaking
   authoritatively on behalf of the activities of the study group (or a
   particular rapporteur group).  The study group chairman sends the
   ITU-T list of delegates by email to the working group chair, with a
   copy to the area directors, and also to the study group.  According
   to IETF process, opinions expressed by any such delegate are given
   equal weight with opinions expressed by any other working group
   participant.

2.3.  Communication outside of Meetings

   Informal communication between contact points and experts of both
   organizations is encouraged.  However, formal communication from an
   ITU-T study group, working party, or rapporteur group to an
   associated IETF contact point must be explicitly approved and
   identified as coming from the study group, working party, or
   rapporteur group, respectively.  Formal liaison statements from the
   ITU-T to the IETF are transmitted according to the procedures
   described in RFC 4053 [2].  These liaison statements are placed by
   the IETF onto a liaison statements web page at
   https://datatracker.ietf.org/liaison/.  An individual at the IETF is
   assigned responsibility for dealing with each liaison statement that
   is received.  The name and contact information of the responsible
   person and any applicable deadline is listed with the links to the
   liaison statement on this web page.

   Formal liaison statements from the Internet Architecture Board (IAB),
   the IESG, the IETF, an IETF working group or area to the ITU-T are
   generated, approved, and transmitted according to the procedures
   described in RFC 4053 [2] and Recommendation ITU-T A.1 [15].  Formal
   communication is intended to allow the sharing of positions between
   the IETF and the ITU-T outside of actual documents (as described in
   Section 2.5.1).  This covers such things as comments on documents and
   requests for input.

2.4.  Mailing Lists

   All IETF working groups and all ITU-T study group Questions have
   associated mailing lists.

   In the IETF, the mailing list is the primary vehicle for discussion
   and decision-making.  It is recommended that the ITU-T experts
   interested in particular IETF working group topics subscribe to and
   participate in these lists.  IETF WG mailing lists are open to all
   subscribers.  The IETF working group mailing list subscription and
   archive information are noted in each working group's charter.  In
   the ITU-T, the TSB has set up formal mailing lists for Questions,
   working parties, and other topics within study groups (more detail
   can be found on the ITU-T web site).  These mailing lists are
   typically used for ITU-T correspondence, including technical
   discussion, meeting logistics, reports, etc.

   Note: Individual subscribers to this list must be affiliated with an
   ITU-T member or associate (at this time, there is no blanket
   inclusion of all IETF participants as members, however, as a member,
   the ISOC focal point can facilitate access by IETF technical experts,
   liaison representatives, or liaison managers).

   IETF participants may subscribe to ITU-T focus group email lists if
   they are individuals from a country that is a member of ITU-T.

2.5.  Document Sharing

   During the course of ITU-T and IETF collaboration, it is important to
   share working drafts and documents among the technical working
   groups.  Initially proposed concepts and specifications typically can
   be circulated by email (often just repeating the concept and not
   including the details of the specification) on both the IETF and
   ITU-T mailing lists.  In addition, working texts (or URLs) of draft
   Recommendations, Internet-Drafts, or RFCs may also be sent between
   the organizations as described below.

   Internet-Drafts are available on the IETF web site.  The ITU-T can
   make selected ITU-T documents at any stage of development available
   to the IETF by attaching them to a formal liaison statement.
   Although a communication can point to a URL where a non-ASCII
   document (e.g., Word) can be downloaded, attachments in proprietary
   formats to an IETF mailing list are discouraged.  It should also be
   recognized that the official versions of all IETF documents are in
   ASCII.

2.5.1.  Contributions and Liaison Statements from the IETF to ITU-T

   IETF documents (e.g., Internet-Drafts) or URLs of those documents are
   most commonly transmitted to ITU-T study groups as liaison statements
   (see RFC 4053 [2]), but exceptionally can be submitted to a study
   group as a contribution from ISOC in accordance with Recommendation
   ITU-T A.2 [16].  In order to ensure that the IETF has properly
   authorized this, the IETF working group must agree that the specific
   drafts are of mutual interest; that there is a benefit in forwarding
   them to the ITU-T for review, comment, and potential use; and that
   the document status is accurately represented in the cover letter.
   Once agreed, the appropriate area directors review the working group
   request and give approval.  The rules of the IETF Trust are followed
   in these circumstances [3].  The contributions are then forwarded
   (with the noted approval) to the TSB for circulation as a
   contribution to the appropriate ITU-T study group.  Material
   submitted to the ITU-T as an ISOC contribution is governed by clause
   3.1.5 of Recommendation ITU-T A.1 [15].  Any such contribution will
   be made only after receiving necessary approval of owners of the work
   in question.  In other circumstances, a liaison statement may be
   appropriate.  See RFC 5378 [3] and Recommendation ITU-T A.1 [15] for
   more information.

2.5.2.  Contributions and Liaison Statements from the ITU-T to IETF

   An ITU-T study group or working party may send texts of draft new or
   revised Recommendations, clearly indicating their status, to the IETF
   as contributions in the form of liaison statements or Internet-
   Drafts.  Internet-Drafts are IETF temporary documents that expire six
   months after being published.  The study group or working party must
   decide that there is a benefit in forwarding them to the IETF for
   review, comment, and potential use.  Terms of reference for
   rapporteur group meetings may authorize rapporteur groups to send
   working documents, in the form of Internet-Drafts, to the IETF.

   If the study group or working party elects to transmit the text as an
   Internet-Draft, the document editor would be instructed to prepare
   the contribution in Internet-Draft format (in ASCII and optionally
   postscript format as per RFC 2223 [8]) and upload it via
   https://datatracker.ietf.org/idst/upload.cgi.  Material submitted as
   an Internet-Draft or intended for inclusion in an Internet-Draft or
   RFC is governed by the rules set forth in RFCs 5378 [3], 3979 [4],
   and 4879 [5].  Alternatively, the study group, working party, or
   rapporteur group could attach the text to a formal liaison statement.

   Both the rapporteur and the document editor should be identified as
   contacts in the contribution.  The document should also clearly
   indicate the state of development in a particular ITU-T study group.

   Note: Liaison statements and their attachments sent to the IETF are
   made publicly available on the IETF web site.

2.5.3.  ITU-T and IETF

   It is envisaged that the processes of Sections 2.5.1 and 2.5.2 will
   often be used simultaneously by both an IETF working group and an
   ITU-T study group to collaborate on a topic of mutual interest.

   It is also envisaged that the outcome of the collaboration will be
   the documentation in full by one body and its referencing by the
   other (see Section 2.6 for details).  That is, common or joint text
   is discouraged because of the current differences in procedures for
   document approval and revision.  Where complementary work is being
   undertaken in both organizations that will result in Recommendations
   or RFCs, due allowance should be given to the differing perspectives,
   working methods, and procedures of the two organizations.  That is,
   each organization should understand the other organization's
   procedures and strive to respect them in the collaboration.

2.6.  Simple Cross Referencing

   Recommendation ITU-T A.5 [6] describes the process for including
   references to documents of other organizations in ITU-T
   Recommendations.  Recommendation ITU-T A.5 also addresses the
   situation where a study group or working party decides to incorporate
   the text of another organization into the text of a Recommendation,
   rather than referencing it.  Information specific to referencing IETF
   RFCs is found at http://itu.int/ITU-T/go/ref-ietf-isoc.

   Section 6.1.1 of RFC 2026 [7] describes the process for referencing
   other open standards (like ITU-T Recommendations) in IETF RFCs.

2.7.  Preliminary Work Efforts

   Both ITU-T and IETF provide mechanisms for early discussion of
   potential new work areas prior to the official start of work in an
   ITU-T study group or creation of an IETF working group.

   Objectives, methods, and procedures for the creation and operation of
   ITU-T focus groups are defined in Recommendation ITU-T A.7 [17].
   Focus groups are frequently created in new work areas where there is
   a need for deliverables to be produced on a specific topic within a
   short timeframe.  IETF participants who are not members or associates
   of ITU-T may participate fully in the work of ITU-T focus groups if
   they are from a country that is a member of ITU-T.

   In the IETF, guidance for BOF sessions is provided in RFC 5434 [13].
   Efforts that have not yet reached the working group stage may be
   discussed in BOF sessions.  These sessions typically gauge interest
   in pursuing creation of working groups.  In some cases, these
   discussions continue on mailing lists.

2.8.  Additional Items

2.8.1.  IETF Information That May Be Useful to ITU-T Participants

   Information on IETF procedures may be found in the documents in the
   informative references, and URLs below.

   Note: RFCs do not change after they are published.  Rather, they are
   either obsoleted or updated by other RFCs.  Such updates are tracked
   in the rfc-index.txt file.

   Current list and status of all IETF RFCs:
      ftp://ftp.ietf.org/rfc/rfc-index.txt

   Current list and description of all IETF Internet-Drafts:
      ftp://ftp.ietf.org/internet-drafts/1id-abstracts.txt

   Current list of IETF working groups and their Charters: (includes
   area directors and chair contacts, mailing list information, etc.)
      http://www.ietf.org/dyn/wg/charter.html

   Current list of registered BOFs
      http://trac.tools.ietf.org/bof/trac/

   RFC Editor pages about publishing RFCs, including available tools and
   lots of guidance:
      http://www.rfc-editor.org/pubprocess.html

   Current list of liaison statements:
      https://datatracker.ietf.org/liaison/

   IETF Intellectual Property Rights Policy and Notices:
      http://www.ietf.org/ipr/

   The Tao of the IETF - A Novice's Guide to the Internet Engineering
   Task Force:
      http://www.ietf.org/tao.html

2.8.2.  ITU-T Information That May Be Useful to IETF Participants

   Information about the ITU-T can be found in the informative
   references and at the URLs below.

   ITU-T Main page:
      http://itu.int/ITU-T

   List of all ITU-T Recommendations:
      http://itu.int/itu-t/recommendations/

   ITU-T study group main page for Study Group NN (where NN is the
   2-digit SG number):
      http://itu.int/ITU-T/studygroups/comNN/

   Intellectual Property policies, forms, and databases:
      http://itu.int/en/ITU-T/ipr/Pages/default.aspx

   Current list of active ITU-T focus Groups
      http://itu.int/en/ITU-T/focusgroups/Pages/default.aspx

   ITU-T Procedures including:
      WTSA Resolution 1, Rules of procedure of the ITU Telecommunication
      Standardization Sector (ITU-T)
      WTSA Resolution 2, Study Group responsibility and mandates
      http://itu.int/publ/T-RES/en

   Author's Guide for drafting ITU-T Recommendations:
      http://itu.int/ITU-T/go/author-guide

   Templates for contributions, ITU-T Recommendations, and liaison
   statements:
      http://itu.int/ITU-T/studygroups/templates/index.html

3.  Security Considerations

   Documents that describe cooperation procedures, like this one does,
   have no direct Internet security implications.

4.  Acknowledgements

   This document is based on the text from RFCs 2436 and 3356 [10] and
   benefited greatly from discussions during the January 2012 ITU-T
   Telecommunication Standardization Advisory Group (TSAG) meeting.

5.  References

5.1.  Normative References

   [1]   Daigle, L., Ed., and Internet Architecture Board, "IAB
         Processes for Management of IETF Liaison Relationships", BCP
         102, RFC 4052, April 2005.

   [2]   Trowbridge, S., Bradner, S., and F. Baker, "Procedures for
         Handling Liaison Statements to and from the IETF", BCP 103, RFC
         4053, April 2005.

   [3]   Bradner, S., Ed., and J. Contreras, Ed., "Rights Contributors
         Provide to the IETF Trust", BCP 78, RFC 5378, November 2008.

   [4]   Bradner, S., Ed., "Intellectual Property Rights in IETF
         Technology", BCP 79, RFC 3979, March 2005.

   [5]   Narten, T., "Clarification of the Third Party Disclosure
         Procedure in RFC 3979", BCP 79, RFC 4879, April 2007.

   [6]   Recommendation ITU-T A.5 (2008), Generic procedures for
         including references to documents of other organizations in
         ITU-T Recommendations, International Telecommunication Union.

5.2.  Informative References

   [7]   Bradner, S., "The Internet Standards Process -- Revision 3",
         BCP 9, RFC 2026, October 1996.

   [8]   Postel, J. and J. Reynolds, "Instructions to RFC Authors", RFC
         2223, October 1997.

   [9]   Brett, R., Bradner, S., and G. Parsons, "Collaboration between
         ISOC/IETF and ITU-T", RFC 2436, October 1998.

   [10]  Fishman, G. and S. Bradner, "Internet Engineering Task Force
         and International Telecommunication Union - Telecommunications
         Standardization Sector Collaboration Guidelines", RFC 3356,
         August 2002.

   [11]  Hovey, R. and S. Bradner, "The Organizations Involved in the
         IETF Standards Process", BCP 11, RFC 2028, October 1996.

   [12]  Bradner, S., "IETF Working Group Guidelines and Procedures",
         BCP 25, RFC 2418, September 1998.

   [13]  Narten, T., "Considerations for Having a Successful Birds-of-a-
         Feather (BOF) Session", RFC 5434, February 2009.

   [14]  Alvestrand, H., "A Mission Statement for the IETF", BCP 95, RFC
         3935, October 2004.

   [15]  Recommendation ITU-T A.1 (2008), Work methods for study groups
         of the ITU Telecommunication Standardization Sector (ITU-T),
         International Telecommunication Union.

   [16]  Recommendation ITU-T A.2 (2008), Presentation of contributions
         to the ITU-T, International Telecommunication Union.

   [17]  Recommendation ITU-T A.7 (2008), Focus groups: Working methods
         and procedures, International Telecommunication Union.

   [18]  Recommendation ITU-T A.8 (2008), Alternative approval process
         for new and revised ITU-T Recommendations, International
         Telecommunication Union.

6.  Changes since RFC 3356

   The introduction has been integrated with the scope section.

   Additional information has been added about copyright and IPR issues.

   Authorization of liaison managers and liaison representatives from
   IETF to ITU-T are updated per current IETF procedures documented in
   [1].

   Transmission of formal liaison statements between ITU-T and IETF are
   updated per current IETF procedures documented in [2].

   Description is added of preliminary efforts including ITU-T focus
   groups and IETF BOFs.  ITU-T focus group participation is not limited
   to ITU-T members.

   Obsolete URLs in RFC 3356 from both the ITU-T and IETF web sites are
   updated, more references have been moved to the References section.

7.  IAB Members at the Time of Approval

   Bernard Aboba
   Jari Arkko
   Marc Blanchet
   Ross Callon
   Alissa Cooper
   Spencer Dawkins
   Joel Halpern
   Russ Housley
   David Kessens
   Danny McPherson
   Jon Peterson
   Dave Thaler
   Hannes Tschofenig

Authors' Addresses

   Steve Trowbridge
   Alcatel-Lucent
   5280 Centennial Trail
   Boulder, CO 80303-1262 USA

   Phone: +1 720 945 6885
   EMail: steve.trowbridge@alcatel-lucent.com

   Eliot Lear
   Cisco Systems GmbH
   Richtistrasse 7
   8304 Wallisellen
   Switzerland

   Phone: +41 44 878 9200
   EMail: lear@cisco.com

   Gary Fishman
   Pearlfisher International
   12 Chestnut Drive
   Matawan, NJ 07747

   Phone: +1 732 778 9572
   EMail: gryfishman@aol.com

   Scott Bradner
   Harvard University
   1 Oxford St.
   Cambridge, MA 02138

   Phone: +1 617 495 3864
   EMail: sob@harvard.edu

 

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