Transport Area Working Group (tsvwg)

Last Modified: 2009-05-20

Additional information is available at tools.ietf.org/wg/tsvwg

Chair(s):

  • James Polk <jmpolk@cisco.com>

  • Gorry Fairhurst <gorry@erg.abdn.ac.uk>

    Transport Area Director(s):

  • Magnus Westerlund <magnus.westerlund@ericsson.com>
  • Lars Eggert <lars.eggert@nokia.com>

    Transport Area Advisor:

  • Lars Eggert <lars.eggert@nokia.com>

    Mailing Lists:

    General Discussion: tsvwg@ietf.org
    To Subscribe: tsvwg-request@ietf.org
    In Body: subscribe email_address
    Archive: http://www.ietf.org/mail-archive/web/tsvwg/index.html

    Description of Working Group:

    The Transport Area receives occasional proposals for the development
    and publication of RFCs dealing with transport topics that are not in
    scope of an existing working group or do not justify the formation of
    a new working group. TSVWG will serve as the forum for developing
    such work items in the IETF.

    The TSVWG mailing list is an open discussion forum for such work
    items, when they arise. The working group meets if there are active
    proposals that require discussion. The working group milestones are
    updated as needed to reflect the current work items and their
    associated milestones.

    The currently active TSVWG work items mostly fall under the following
    topics:

    (A) Maintenance of the Stream Control Transmission Protocol (SCTP),
    which involves bug fixes to the SCTP specifications and their
    progression along the standards track. This work item also includes a
    small number of modular extensions to SCTP. Currently, these include
    SCTP-ADDIP, SCTP-AUTH and SCTP-PADDING, as well as socket API and
    threat analysis documents. In order to maintain stable
    specifications, additional work on SCTP in TSVWG requires Area
    Director approval.

    (B) Maintenance of the Resource Reservation Protocol (RSVP), which
    involves bug fixes to the RSVP specifications and their progression
    along the standards track. This work item may also include a small
    number of extensions to RSVP or advisory documents to address
    specific application scenarios. In order to maintain stable
    specifications, additional work on RSVP in TSVWG requires Area
    Director approval.

    (C) Maintenance of IP Differentiated Services (DiffServ) mechanisms,
    which involves mostly advisory documents on the use of DiffServ in
    specific application scenarios. Other work items related to DiffServ
    require Area Director approval.

    (D) Selected other work items, which are mostly in TSVWG for historic
    reasons. These include an extended statistics MIB for TCP and the
    quick-start mechanism for TCP and IP. Additional work that does not
    fall under one of the above topics in TSVWG must satisfy four
    conditions: (1) WG consensus on the suitability and projected quality
    of the proposed work item. (2) A core group of WG participants with
    sufficient energy and expertise to advance the work item according to
    the proposed schedule. (3) Commitment from the WG as a whole to
    provide sufficient and timely review of the proposed work item. (4)
    Agreement by the ADs, who, depending on the scope of the proposed
    work item, may decide that an IESG review is needed first.

    Goals and Milestones:

    Done  Updates to RFC 793 to resolve conflict between diffserv and TCP interpretation of IP Precedence submitted for publication as Proposed Standard
    Done  Addition to RFC 2018 to use TCP SACK for detecting unnecessary retransmissions submitted for publication as Proposed Standard
    Done  Submit I-D on TCP Congestion Window Validation to IESG for consideration as a Proposed Standard
    Done  Submit I-D on Computing TCP's Retransmission Timer to IESG for consideration as a Proposed Standard.
    Done  submit revised ID for ECN to IESG for consideration as a proposed standard
    Done  submit ID on UDP-lite to IESG for consideration as a proposed standard
    Done  TCP-Friendly Rate Control (TFRC) unicast congestion control algorithm submitted to IESG for consideration as a proposed standard
    Done  Submit ID for SCTP unreliable transport mode to IESG for consideration as a Proposed Standard
    Done  Submit 'Alternate Semantics for the ECN Field' to IESG for consideration as BCP
    Done  Submit 'Aggregation of RSVP Reservations over MPLS TE/DS-TE Tunnels' to IESG for consideration as PS
    Done  Submit Submit 'QoS Signaling in a Nested Virtual Private Network' to IESG for consideration as Informational
    Done  Submit 'Generic Aggregate RSVP Reservations' to IESG for consideration as PS
    Done  Submit 'Quick-Start for TCP and IP' to IESG for consideration as Experimental
    Done  Submit 'TCP Extended Statistics MIB' to IESG for consideration as PS
    Done  Submit 'Authenticated Chunks for Stream Control Transmission Protocol' to IESG as consideration as PS
    Done  Submit 'Padding Chunk and Parameter for SCTP' to IESG for consideration as PS
    Done  Submit 'SCTP Dynamic Address Reconfiguration' to IESG for consideration as Proposed Standard
    Done  Submit revision of 'Stream Control Transmission Protocol' to IESG for consideration as Proposed Standard
    Done  Submit 'Security Attacks Found Against SCTP and Current Countermeasures' to IESG for consideration as Informational
    Done  Submit 'Specifying New Congestion Control Algorithms' to IESG for consideration as Best Current Practice
    Done  Submit 'Aggregation of DiffServ Service Classes' to IESG for consideration as Informational
    Done  Submit 'Explicit Congestion Marking in MPLS' to IESG for consideration as Proposed Standard
    Done  Submit 'User-Defined Errors for RSVP' to IESG for consideration as Proposed Standard
    Done  Submit 'RSVP Extensions for Emergency Services' to IESG for consideration as Proposed Standard
    Done  Submit 'RSVP Proxy Approaches' to IESG for consideration as Informational
    Done  Submit 'RSVP Extensions for Path-Triggered RSVP Receiver Proxy' to IESG for consideration as Proposed Standard
    Done  Submit 'UDP Usage Guidelines for Application Designers' to IESG for consideration as Best Current Practice
    Done  Submit 'DSCPs for Capacity-Admitted Traffic' to IESG for consideration as Proposed Standard
    Jul 2008  Submit 'Sockets API Extensions for SCTP' to IESG for consideration as Informational
    Oct 2008  Submit 'Port Randomization for Transport Protocols' to the IESG for consideration as a Best Current Practice
    Dec 2008  Submit 'Applicability of Keying Methods for RSVP Security' to IESG for consideration as Informational
    Mar 2009  Request publication of 'IANA Procedures for the Transport Protocol Port Number Space' as BCP RFC
    Done  Request publication of 'Support for RSVP in Layer 3 VPNs' as Proposed Standard RFC
    Jun 2009  Request publication of 'Datagram Transport Layer Security for Stream Control Transmission' as Proposed Standard
    Sep 2009  Request publication of 'Byte and Packet Congestion Notification' as Informational RFC
    Dec 2009  Request publication of 'Layered Encapsulation of Congestion Notification' as Proposed Standard

    Internet-Drafts:

    Sockets API Extensions for Stream Control Transmission Protocol (SCTP) (190767 bytes)
    Resource ReSerVation Protocol (RSVP) Extensions for Admission Priority (71745 bytes)
    DSCP for Capacity-Admitted Traffic (32917 bytes)
    RSVP Extensions for Path-Triggered RSVP Receiver Proxy (63922 bytes)
    RSVP Proxy Approaches (105383 bytes)
    Port Randomization (57458 bytes)
    Applicability of Keying Methods for RSVP Security (47352 bytes)
    Support for RSVP in Layer 3 VPNs (85459 bytes)
    Tunnelling of Explicit Congestion Notification (105402 bytes)

    Request For Comments:

    TCP Congestion Window Validation (RFC 2861) (26993 bytes)
    An Extension to the Selective Acknowledgement (SACK) Option for TCP (RFC 2883) (35794 bytes)
    Computing TCP's Retransmission Timer (RFC 2988) (15280 bytes)
    Enhancing TCP's Loss Recovery Using Limited Transmit (RFC 3042) (19885 bytes)
    The Addition of Explicit Congestion Notification (ECN) to IP (RFC 3168) (170966 bytes) obsoletes RFC 2481/ updates RFC 2474,RFC 2401,RFC 793
    Stream Control Transmission Protocol (SCTP) Checksum Change (RFC 3309) (34670 bytes) obsoleted by RFC 4960/ updates RFC 2960
    Increasing TCP's Initial Window (RFC 3390) (36177 bytes) obsoletes RFC 2414/ updates RFC 2581
    Transport Layer Security over Stream Control Transmission Protocol (RFC 3436) (16333 bytes)
    TCP Friendly Rate Control (TFRC):Protocol Specification (RFC 3448) (52657 bytes)
    A Conservative Selective Acknowledgment (SACK)-based Loss Recovery Algorithm for TCP (RFC 3517) (27855 bytes)
    The Eifel Detection Algorithm for TCP (RFC 3522) (33729 bytes)
    Robust ECN Signaling with Nonces (RFC 3540) (30081 bytes)
    HighSpeed TCP for Large Congestion Windows (RFC 3649) (79801 bytes)
    Using TCP DSACKs and SCTP Duplicate TSNs to Detect Spurious Retransmissions (RFC 3708) (20818 bytes)
    The NewReno Modification to TCP's Fast Recovery Algorithm (RFC 3782) (49603 bytes) obsoletes RFC 2582
    Limited Slow-Start for TCP with Large Congestion Windows (RFC 3742) (14840 bytes)
    SCTP Partial Reliability Extension (RFC 3758) (50999 bytes)
    The UDP-Lite Protocol (RFC 3828) (27193 bytes)
    The Eifel Response Algorithm for TCP (RFC 4015) (31512 bytes)
    Stream Control Transmission Protocol (SCTP) Specification Errata and Issues (RFC 4460) (215405 bytes)
    A Resource Reservation Protocol (RSVP) Extension for the Reduction of Bandwidth of a Reservation Flow (RFC 4495) (44983 bytes) updates RFC 2205
    Implementing an Emergency Telecommunications Service (ETS) for Real Time Services in the Internet Protocol Suite (RFC 4542) (99770 bytes)
    Configuration Guidelines for DiffServ Service Classes (RFC 4594) (144044 bytes)
    Specifying Alternate Semantics for the Explicit Congestion Notification (ECN) Field (RFC 4774) (37144 bytes)
    Quick-Start for TCP and IP (RFC 4782) (214489 bytes)
    Aggregation of Resource ReSerVation Protocol (RSVP) Reservations over MPLS TE/DS-TE Tunnels (RFC 4804) (69473 bytes)
    Padding Chunk and Parameter for the Stream Control Transmission Protocol (SCTP) (RFC 4820) (11597 bytes)
    Generic Aggregate Resource ReSerVation Protocol (RSVP) Reservations (RFC 4860) (73010 bytes)
    TCP Extended Statistics MIB (RFC 4898) (153768 bytes)
    Quality of Service (QoS) Signaling in a Nested Virtual Private Network (RFC 4923) (92632 bytes)
    Specifying New Congestion Control Algorithms (RFC 5033) (23469 bytes)
    Authenticated Chunks for Stream Control Transmission Protocol (SCTP) (RFC 4895) (42507 bytes)
    Stream Control Transmission Protocol (SCTP) Dynamic Address Reconfiguration (RFC 5061) (91851 bytes)
    Stream Control Transmission Protocol (RFC 4960) (346022 bytes) obsoletes RFC 2960,RFC 3309
    Security Attacks Found Against SCTP and Current Countermeasures (RFC 5062) (29702 bytes)
    Explicit Congestion Marking in MPLS (RFC 5129) (49496 bytes) updates RFC 3032/ updated by RFC 5462
    MIB for the UDP-Lite protocol (RFC 5097) (48944 bytes)
    Aggregation of DiffServ Service Classes (RFC 5127) (43751 bytes)
    User-Defined Errors for RSVP (RFC 5284) (17452 bytes)
    Unicast UDP Usage Guidelines for Application Designers (RFC 5405) (69605 bytes)
    IETF Secretariat - Please send questions, comments, and/or suggestions to ietf-web@ietf.org.

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