rfc2436.txt

<VC++网络游戏建摸与实现>源代码

Network Working Group                                          R. Brett
Request for Comments: 2436                              Nortel Networks
Category: Informational                                      S. Bradner
                                                     Harvard University
                                                             G. Parsons
                                                        Nortel Networks
                                                           October 1998


               Collaboration between ISOC/IETF and ITU-T

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

Overview

   This document describes the collaboration process between the ITU-T
   and ISOC/IETF. The process was documented by ITU-T at its TSAG
   (Telecommunication Standardization Advisory Group) meeting in
   September 1998.  All participants of this meeting (including Study
   Group chairmen and the ISOC Vice President for Standards) assisted in
   the creation of this document.  Subsequently, it was sent to all
   ITU-T Study Groups and ISOC/IETF to ensure that everyone was aware of
   the process. Feedback is requested by the next meeting of TSAG in
   April 1999.  This document is identical to the document produced by
   TSAG.

   Please send any comments on this document to ISOC at [e-mail]
   and for information to the ITU-T TSAG group at [e-mail]

ISOC/IETF and ITU-T Collaboration

1 Scope

   This Liaison is sent to all ITU-T Study Groups to encourage and aid
   in the understanding of collaboration on standards development
   between the ITU-T and the Internet Society (ISOC) / Internet
   Engineering Task Force (IETF).  Feedback to TSAG is encouraged before
   its next meeting in April 1999.





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2 Introduction

   The telecommunication industry is faced with an explosion in growth
   of the Internet and other IP (Internet Protocol) based networks.
   Operators, manufacturers and software/application providers alike are
   reconsidering their business directions and Standards Development
   Organizations and Forums and Consortia are facing an immense
   challenge to address this situation.  These challenges were
   considered by TSAG at its meeting in Geneva, 7-11 September 1998,
   where it recognized that although the ITU-T and ISOC/IETF are already
   collaborating in a number of areas, this collaboration must be
   strengthened within the context of changes in work emphasis and
   direction within the ITU-T on studies related to IP based networks.

   For example, many Study Groups (e.g., 7, 8 & 16) already address
   several the aspects of IP based networks.  Further, new IP related
   work activities are starting in other Study Groups (e.g., 4, 11 &
   13).  There are many potential areas of interest to ITU-T Study
   Groups in the IP area that should be investigated (e.g., signaling,
   routing, security, numbering & addressing, integrated management,
   performance, IP - telecom interworking, access).  Since many of these
   areas are also being investigated by the IETF, there is a requirement
   for close collaboration.

   Recommendations A.4, A.5 and A.6 already document the process for
   working with other organizations and their documents.  Since there
   are no specific guidelines on the process of collaboration with the
   IETF, this liaison is meant to provide that information.  The current
   level of cooperation between the ITU-T and the IETF should be built
   upon to ensure that the competence and experience of each
   organization is brought to bear in the most effective manner and in
   collaboration with the other.

3 Guidance on Collaboration

   TSAG has been made aware of several instances of existing successful
   collaboration between the ITU-T and ISOC/IETF.  This section builds
   on this existing process and details some of the more important
   guidance points that Study Groups should be aware of in their
   collaboration with ISOC/IETF.

3.1  How to interact on ITU-T or IETF work items.

   Study Groups that have identified work topics that are Internet
   related 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




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   section 3.5).  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.  It is anticipated
   that an IETF Working Group would 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 learn about the others new work items.

3.1.1  How the ITU-T learns 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.  Should a Study Group believe that there is an
   opportunity for collaboration on a topic of mutual interest it should
   contact both the IETF Working Group Chair and the Area Director
   responsible.

3.1.2  How the ITU-T learns about proposed new IETF work items

   The IETF maintains a mailing list for the distribution and discussion
   of proposed new Working Group charters amongst the management team.
   To add or change a subscription to this list, send a message to
   [e-mail] indicating who you are and that you would
   like to subscribe to the New Work mailing list.  Details on the list
   process will be emailed to each subscriber.

   It is recommended that each Study Group chairman (or a delegate)
   subscribe to this list and monitor the new work items for possible
   overlap or interest to their Study Group.  It is expected that this
   mailing list will see one or two messages per month. Chairmen should
   identify their comments on these charters by responding to the IESG
   mailing list at [e-mail] clearly indicating their ITU-T position
   and the nature of their concern.  It should be noted that the IETF
   turnaround time for new Working Group charters is one week.  As a
   result, the mailing list should be consistently monitored.

3.1.3  How the IETF learns about ITU-T work items

   An initial list of Internet related topics in ITU-T Study Groups
   based on the situation as of 11 September is being provided to the
   Vice President of Standards for ISOC for distribution to the
   appropriate IETF interested individuals and will be copied to all



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   ITU-T Study Group Chairmen.  The intention is for Study Groups to
   forward updates to the Vice President of Standards for ISOC as they
   occur.

   It is expected that any IETF Working Group interest with the topics
   being covered by the ITU-T will be forwarded to individual Study
   Group Chairmen (or the lead Study Group Chairman) by the Vice
   President of Standards for ISOC.

3.2  Representation

   ISOC, including its standards body IETF, have been admitted by the
   ITU Council to participate in the work of the ITU-T.   As a result,
   ISOC delegates are therefore afforded equivalent rights to those of
   other ITU-T Study Group participants (see 3.2.1).  Conversely, ITU-T
   delegates may participate in the work of the IETF as individuals or
   be recognized as ITU-T delegates (see 3.2.2).  To promote
   collaboration it is useful to facilitate communication between the
   organizations as further described below.

3.2.1  IETF Recognition at ITU-T

   Participants from the IETF may participate in ITU-T meetings as ISOC
   delegates if the appropriate IETF Working Group (or area) has
   approved their attendance.  This approval will be communicated to the
   TSB in the form of a registration for a particular ITU-T meeting by
   the Vice President of Standards for ISOC.

3.2.2  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 on
   behalf of the Study Group (or a particular Rapporteur Group).  The
   Study Group Chairman communicates the ITU-T list of delegates by
   email to the Vice President of Standards for ISOC and also to the
   Study Group.  The email address of the Vice President of Standards
   for ISOC is [e-mail].

3.2.3 Communication contacts

   To foster ongoing communication between the ITU-T and ISOC/IETF, it
   is important to identify and establish contact points within ITU-T
   Study Groups for specific IETF topics of mutual interest. It is
   beneficial to identify these contact points early and in some cases
   the contact point identified by each organization may be the same
   individual.  It is responsibility of a Study Group to establish the
   contact points with the IETF and maintain the list on its web page.




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   An example of communication contacts that is suggested to Study
   Groups has both a high level and a working level:

   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. Note that the
      current 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 web page.

   Both the ITU-T and IETF may assign their contact point function(s) to
   other individuals than those suggested as it deems appropriate.

3.2.4  Communication

   Informal communication between contact points and experts of both
   organizations is encouraged.  However, note that formal communication
   from an ITU-T Study Group, Working Party or Rapporteur to an
   associated IETF contact point must be explicitly approved and
   identified as coming from the Study Group, Working Party or