Transport Area Working Group (tsvwg) ------------------------------------ Charter Last Modified: 2010-05-10 Current Status: Active Working Group Chair(s): James Polk Gorry Fairhurst Transport Area Director(s): David Harrington Lars Eggert Transport Area Advisor: David Harrington 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 Done Request publication of 'Support for RSVP in Layer 3 VPNs' as Proposed Standard RFC Nov 2009 Request Publication of 'SCTP Stream Reconfiguration' as Proposed Standard Nov 2009 Submit 'Applicability of Keying Methods for RSVP Security' to IESG for consideration as Informational Done Submit 'Port Randomization for Transport Protocols' to the IESG for consideration as a Best Current Practice Dec 2009 Request publication of 'IANA Procedures for the Transport Protocol Port Number Space' as BCP RFC Done Request publication of 'Datagram Transport Layer Security for Stream Control Transmission' as Proposed Standard Done Request publication of 'Layered Encapsulation of Congestion Notification' as Proposed Standard Feb 2010 Request publication of 'Byte and Packet Congestion Notification' as Informational RFC Jul 2010 Submit 'Sockets API Extensions for SCTP' to IESG for consideration as Informational Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Jun 2001 Mar 2010 Sockets API Extensions for Stream Control Transmission Protocol (SCTP) Oct 2006 Mar 2010 Resource ReSerVation Protocol (RSVP) Extensions for Admission Priority Feb 2007 Mar 2010 RSVP Extensions for Path-Triggered RSVP Receiver Proxy Feb 2007 Mar 2010 RSVP Proxy Approaches Dec 2007 May 2010 Transport Protocol Port Randomization Recommendations Jul 2008 Apr 2010 Support for RSVP in Layer 3 VPNs Jul 2008 May 2010 Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Transport Protocol Port Number and Service Name Registry Oct 2008 Mar 2010 Tunnelling of Explicit Congestion Notification Oct 2008 Mar 2010 Datagram Transport Layer Security (DTLS) for Stream Control Transmission Protocol (SCTP) Jul 2009 Feb 2010 Stream Control Transmission Protocol (SCTP) Stream Reconfiguration Jun 2010 Jun 2010 Stream Control Transmission Protocol (SCTP) Chunk Flags Registration Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC2873 PS Jun 2000 TCP Processing of the IPv4 Precedence Field RFC2861 E Jun 2000 TCP Congestion Window Validation RFC2883 PS Aug 2000 An Extension to the Selective Acknowledgement (SACK) Option for TCP RFC2988 PS Nov 2000 Computing TCP's Retransmission Timer RFC3042 PS Jan 2001 Enhancing TCP's Loss Recovery Using Limited Transmit RFC3168 PS Sep 2001 The Addition of Explicit Congestion Notification (ECN) to IP RFC3309 PS Oct 2002 Stream Control Transmission Protocol (SCTP) Checksum Change RFC3390 PS Nov 2002 Increasing TCP's Initial Window RFC3436 PS Dec 2002 Transport Layer Security over Stream Control Transmission Protocol RFC3448 PS Jan 2003 TCP Friendly Rate Control (TFRC):Protocol Specification RFC3517 PS Apr 2003 A Conservative Selective Acknowledgment (SACK)-based Loss Recovery Algorithm for TCP RFC3522 E May 2003 The Eifel Detection Algorithm for TCP RFC3540 E Nov 2003 Robust ECN Signaling with Nonces RFC3649 E Dec 2003 HighSpeed TCP for Large Congestion Windows RFC3708 E Mar 2004 Using TCP DSACKs and SCTP Duplicate TSNs to Detect Spurious Retransmissions RFC3782Standard Apr 2004 The NewReno Modification to TCP's Fast Recovery Algorithm RFC3742 E May 2004 Limited Slow-Start for TCP with Large Congestion Windows RFC3758Standard May 2004 SCTP Partial Reliability Extension RFC3828Standard Jul 2004 The UDP-Lite Protocol RFC4015Standard Feb 2005 The Eifel Response Algorithm for TCP RFC4460 I Apr 2006 Stream Control Transmission Protocol (SCTP) Specification Errata and Issues RFC4495 PS May 2006 A Resource Reservation Protocol (RSVP) Extension for the Reduction of Bandwidth of a Reservation Flow RFC4542 I May 2006 Implementing an Emergency Telecommunications Service (ETS) for Real Time Services in the Internet Protocol Suite RFC4594 I Aug 2006 Configuration Guidelines for DiffServ Service Classes RFC4774BCP Nov 2006 Specifying Alternate Semantics for the Explicit Congestion Notification (ECN) Field RFC4782 E Jan 2007 Quick-Start for TCP and IP RFC4804 PS Feb 2007 Aggregation of Resource ReSerVation Protocol (RSVP) Reservations over MPLS TE/DS-TE Tunnels RFC4820 PS Mar 2007 Padding Chunk and Parameter for the Stream Control Transmission Protocol (SCTP) RFC4860 PS May 2007 Generic Aggregate Resource ReSerVation Protocol (RSVP) Reservations RFC4898 PS May 2007 TCP Extended Statistics MIB RFC4923 I Aug 2007 Quality of Service (QoS) Signaling in a Nested Virtual Private Network RFC5033BCP Aug 2007 Specifying New Congestion Control Algorithms RFC4895 PS Aug 2007 Authenticated Chunks for Stream Control Transmission Protocol (SCTP) RFC5062 I Sep 2007 Security Attacks Found Against SCTP and Current Countermeasures RFC4960 PS Sep 2007 Stream Control Transmission Protocol RFC5061 PS Sep 2007 Stream Control Transmission Protocol (SCTP) Dynamic Address Reconfiguration RFC5129 PS Jan 2008 Explicit Congestion Marking in MPLS RFC5097 PS Jan 2008 MIB for the UDP-Lite protocol RFC5127 I Feb 2008 Aggregation of DiffServ Service Classes RFC5284 PS Aug 2008 User-Defined Errors for RSVP RFC5405BCP Nov 2008 Unicast UDP Usage Guidelines for Application Designers RFC5865 PS May 2010 A Differentiated Services Code Point (DSCP) for Capacity-Admitted Traffic