Next Steps in Signaling (nsis) ------------------------------ Charter Last Modified: 2008-02-14 Current Status: Active Working Group Chair(s): John Loughney Martin Stiemerling Transport Area Director(s): Magnus Westerlund Lars Eggert Transport Area Advisor: Magnus Westerlund Secretary(ies): Hannes Tschofenig Mailing Lists: General Discussion:nsis@ietf.org To Subscribe: nsis-request@ietf.org In Body: (un)subscribe Archive: http://www.ietf.org/mail-archive/web/nsis/index.html Description of Working Group: The Next Steps in Signaling Working Group is responsible for standardizing an IP signaling protocol with QoS signaling as the first use case. This working group will concentrate on a two-layer signaling paradigm. The intention is to re-use, where appropriate, the protocol mechanisms of RSVP, while at the same time simplifying it and applying a more general signaling model. The existing work on the requirements, the framework and analysis of existing protocols will be completed and used as input for the protocol work. NSIS will develop a transport layer signaling protocol for the transport of upper layer signaling. In order to support a toolbox or building block approach, the two-layer model will be used to separate the transport of the signaling from the application signaling. This allows for a more general signaling protocol to be developed to support signaling for different services or resources, such as NAT & firewall traversal and QoS resources. The initial NSIS application will be an optimized RSVP QoS signaling protocol. The second application will be a middle box traversal protocol. An informational document detailing how Differentiated Services can be signaled with the QoS Signaling protocol will be made. Security is a very important concern for NSIS. The working group will study and analyze the threats and security requirements for signaling. Compatibility with authentication and authorization mechanisms such as those of Diameter, COPS for RSVP (RFC 2749) and RSVP Session Authorization (RFC 3250), will be addressed. It is a non-goal of the working group to develop new resource allocation protocols. Traffic engineering is out of scope of this WG. Additionally, third party signaling is out of scope of this WG. New mobility and AAA protocols are out of scope of the WG. However, the work produced in this Working Group should work with existing IETF mobility and AAA protocols, including (but not limited to) Mobile IP, Seanoby Context Transfer, etc. An applicability statement will be written to discuss the applicability of NSIS protocols in mobile environments. NSIS also welcomes participation and expression of requirements requirements from non-IETF standards organization members, for instance 3GPP, 3GPP2 and ITU-T. Goals and Milestones: Done Submit 'Signaling Requirements' to IESG for publication as an Informational RFC. Done Submit 'Next Steps in Signaling: Framework' to IESG for publication as Informational RFC Done Submit 'Analysis of Existing Signaling Protocols' to IESG as Informational RFC Done Submit 'RSVP Security Properties' to IESG as Informational RFC Done Submit 'NSIS Threats' to IESG as Informational RFC Done Submit 'NSIS Transport Protocol' to IESG for publication for Proposed Standard Feb 2008 Submit 'NSIS QoS Specification Template' to IESG for publication as an Informational RFC Feb 2008 Submit 'NSIS QoS Application Protocol' to IESG for publication for Proposed Standard Mar 2008 Submit 'NSIS Middle Box Signaling Application Protocol' to IESG for publication for Proposed Standard Sep 2008 Submit 'Y.1541 QoS Model' to the IESG for publication as an Informational RFC Sep 2008 Submit 'Applicability Statement of NSIS Protocols in Mobile Environments' to the IESG as an Informational RFC Sep 2008 Submit 'RMD-QOSM - The Resource Management in Diffserv QOS Model' to the IESG for publication as an Informational RFC Nov 2008 Submit 'GIST State Machine' to the IESG for publication as an Informational RFC Nov 2008 Submit 'NSIS Operation Over IP Tunnels' to the IESG for publication as an Informational RFC Dec 2008 Submit 'NSIS Extensibility Model' to the IESG for publication as an Informational RFC Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Sep 2003 Feb 2008 NSLP for Quality-of-Service Signaling Oct 2003 Feb 2008 NAT/Firewall NSIS Signaling Layer Protocol (NSLP) Oct 2003 Feb 2008 GIST: General Internet Signalling Transport Sep 2004 Feb 2008 QoS NSLP QSPEC Template Oct 2004 Feb 2008 Applicability Statement of NSIS Protocols in Mobile Environments Nov 2004 Nov 2007 RMD-QOSM - The Resource Management in Diffserv QOS Model Jul 2005 Feb 2008 GIST State Machine Aug 2005 Feb 2008 Y.1541-QOSM -- Y.1541 QoS Model for Networks Using Y.1541 QoS Classes Jun 2006 Mar 2008 NSIS Operation Over IP Tunnels Jun 2006 Feb 2008 General Internet Signaling Transport (GIST) over SCTP Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC3583 I Sep 2003 Requirements of a Quality of Service (QoS)Solution for Mobile IP RFC3726 I Apr 2004 Requirements for Signaling Protocols RFC4094 I May 2005 Analysis of Existing Quality of Service Signaling Protocols RFC4080 I Jun 2005 Next Steps in Signaling (NSIS): Framework RFC4081 I Jun 2005 Security Threats for Next Steps in Signaling (NSIS) RFC4230 I Dec 2005 RSVP Security Properties