Transport Area Working Group (tsvwg)
------------------------------------

 Charter
 Last Modified: 2009-04-15

 Current Status: Active Working Group

 Chair(s):
     James Polk  <jmpolk@cisco.com>
     Lars Eggert  <lars.eggert@nokia.com>
     Magnus Westerlund  <magnus.westerlund@ericsson.com>

 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:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Jun 2001 Feb 2009   <draft-ietf-tsvwg-sctpsocket-19.txt>
                Sockets API Extensions for Stream Control Transmission Protocol 
                (SCTP) 

Oct 2006 Feb 2009   <draft-ietf-tsvwg-emergency-rsvp-11.txt>
                Resource ReSerVation Protocol (RSVP) Extensions for Emergency 
                Services 

Dec 2006 Nov 2008   <draft-ietf-tsvwg-admitted-realtime-dscp-05.txt>
                DSCP for Capacity-Admitted Traffic 

Feb 2007 May 2009   <draft-ietf-tsvwg-rsvp-proxy-proto-09.txt>
                RSVP Extensions for Path-Triggered RSVP Receiver Proxy 

Feb 2007 Oct 2008   <draft-ietf-tsvwg-rsvp-proxy-approaches-06.txt>
                RSVP Proxy Approaches 

Dec 2007 Mar 2009   <draft-ietf-tsvwg-port-randomization-03.txt>
                Port Randomization 

Feb 2008 Mar 2009   <draft-ietf-tsvwg-rsvp-security-groupkeying-04.txt>
                Applicability of Keying Methods for RSVP Security 

Jul 2008 Nov 2008   <draft-ietf-tsvwg-rsvp-l3vpn-01.txt>
                Support for RSVP in Layer 3 VPNs 

Jul 2008 Nov 2008   <draft-ietf-tsvwg-iana-ports-01.txt>
                IANA Procedures for the Transport Protocol Port Number Space 

Oct 2008 Mar 2009   <draft-ietf-tsvwg-ecn-tunnel-02.txt>
                Tunnelling of Explicit Congestion Notification 

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
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) 

RFC5061 PS   Sep 2007    Stream Control Transmission Protocol (SCTP) Dynamic 
                       Address Reconfiguration 

RFC4960 PS   Sep 2007    Stream Control Transmission Protocol 

RFC5062 I    Sep 2007    Security Attacks Found Against SCTP and Current 
                       Countermeasures 

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