Re: [dispatch] Charter proposal for Q4S WG ( formerly Q-HTTP) Version 1
"GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)" <jose_javier.garcia_aranda@alcatel-lucent.com> Fri, 17 December 2010 07:36 UTC
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From: "GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)" <jose_javier.garcia_aranda@alcatel-lucent.com>
To: Janet P Gunn <jgunn6@csc.com>
Date: Fri, 17 Dec 2010 08:34:08 +0100
Thread-Topic: [dispatch] Charter proposal for Q4S WG ( formerly Q-HTTP) Version 1
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Cc: "pedrochas@dit.upm.es" <pedrochas@dit.upm.es>, "'dispatch@ietf.org'" <dispatch@ietf.org>, "dispatch-bounces@ietf.org" <dispatch-bounces@ietf.org>, "ORTIGA HERRERA, GUADALUPE (GUADALUPE)" <guadalupe.ortiga_herrera@alcatel-lucent.com>, "jquemada@dit.upm.es" <jquemada@dit.upm.es>, "CUBILLO PASTOR, CLARA (CLARA)" <clara.cubillo_pastor@alcatel-lucent.com>, "gabriel@dit.upm.es" <gabriel@dit.upm.es>, "barcenilla@dit.upm.es" <barcenilla@dit.upm.es>, "jsr@dit.upm.es" <jsr@dit.upm.es>, "HERRANZ PABLO, SONIA (SONIA)" <sonia.herranz@alcatel-lucent.com>, "DIAZ VIZCAINO, LUIS MIGUEL (LUIS MIGUEL)" <luismi.diaz@alcatel-lucent.com>
Subject: Re: [dispatch] Charter proposal for Q4S WG ( formerly Q-HTTP) Version 1
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Hi Janet, This new protocol nature for doing it is out-of-band. It means that it will run in parallel with the protocol in charge of transport application data . For example this new protocol could be used in parallel with FTP, HTTP , RTC or whatever. The new protocol measures the quality ( latency, jitter, packetloss, bandwidth) at the beggining and if the minimum quality is reached, the application can start asuring a good experience. During the application timelife, the new protocol measures continuously the latency, jitter an packetloss and alerts if one or some of these parameters are below certain threshold ( which depends on the application nature). Therefore, we propose a protocol compatible with all existing transport ones, to provide a reliable mechanism for adaptative and QoS profile optimization. The new protocol uses low resources. Depending on the resources being used, the responsiveness is different. For example, it can be useful to have a better responsiveness in downlink than uplink, depends on each application. However, in any case is a good point to consume a low bit rate for this purpose, though there is a trade-off between responsiveness and used bit-rate - jose javier ________________________________ De: Janet P Gunn [mailto:jgunn6@csc.com] Enviado el: jueves, 16 de diciembre de 2010 23:26 Para: GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER) CC: barcenilla@dit.upm.es; CUBILLO PASTOR, CLARA (CLARA); 'dispatch@ietf.org'; dispatch-bounces@ietf.org; gabriel@dit.upm.es; ORTIGA HERRERA, GUADALUPE (GUADALUPE); jquemada@dit.upm.es; jsr@dit.upm.es; DIAZ VIZCAINO, LUIS MIGUEL (LUIS MIGUEL); pedrochas@dit.upm.es; HERRANZ PABLO, SONIA (SONIA) Asunto: Re: [dispatch] Charter proposal for Q4S WG ( formerly Q-HTTP) Version 1 I am a little bit confused by the combination of 1. Protocol design to be used in interactive applications (including virtualized videogames,and interative-video applications) and 3. Optimizing for low bit rates (typlically below 2.4 kbps) I do not know many video games that work effectively at 2.4 kbps. Am I missing something? Janet From: "GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)" <jose_javier.garcia_aranda@alcatel-lucent.com> To: "'dispatch@ietf.org'" <dispatch@ietf.org> Cc: "pedrochas@dit.upm.es" <pedrochas@dit.upm.es>, "CUBILLO PASTOR, CLARA \(CLARA\)" <clara.cubillo_pastor@alcatel-lucent.com>, "ORTIGA HERRERA, GUADALUPE \(GUADALUPE\)" <guadalupe.ortiga_herrera@alcatel-lucent.com>, "jquemada@dit.upm.es" <jquemada@dit.upm.es>, "HERRANZ PABLO, SONIA \(SONIA\)" <sonia.herranz@alcatel-lucent.com>, "gabriel@dit.upm.es" <gabriel@dit.upm.es>, "barcenilla@dit.upm.es" <barcenilla@dit.upm.es>, "jsr@dit.upm.es" <jsr@dit.upm.es>, "DIAZ VIZCAINO, LUIS MIGUEL \(LUIS MIGUEL\)" <luismi.diaz@alcatel-lucent.com> Date: 12/13/2010 10:56 AM Subject: [dispatch] Charter proposal for Q4S WG ( formerly Q-HTTP) Version 1 ________________________________ Hi everybody, Here is the charter proposal for Q4S ( Quality for service) WG. This WG will include the achieved works with "Q-HTTP" Thanks for your comments Description of Working group ============================ Problem Statement: The QoS over Internet is a hot issue today. Current QoS handling mechanisms used in modern network transport layers (MPLS, RSVP, Diffserv,Traffic Engineering) do not provide themselves a QoS-on-demand end-to-end solution and existing adaptative solutions based on In-band Control protocols (such as RTCP) are very difficult to combine with any other protocols for which they have not been designed for. Four Network Parameters comprises the QoS at application level: Bandwidth, packet-loss, latency and Jitter. Interactive-video applications define flows in both directions. Different applications require different constraints (in terms of latency, jitter, packet loss) in one or both directions and different responsiveness. The proposed solution must be an effective out-of-band application level protocol capable of reacting when any of these constraints are violated. Such protocol must trigger adaptive solutions and/or QoS network profile changes. Currently content providers are only able to provide services based on adaptative methods or last-mille deployments which prefer dedicated network resources (vs. Internet), and therefore, restricts the subscriber population and increases the costs. Objetives: The goal of this working group is to define a QoS application-level standard protocol optimized for its use over the internet that may be widely implemented and easily managed by application developers and service providers. The core technical considerations for such protocol include, but are not necessarily limited to, the following: 1. Protocol design to be used in interactive applications (including virtualized videogames,and interative-video applications) 2. Ensuring interoperability with all existing transport protocols 3. Optimizing for low bit rates (typlically below 2.4 kbps) 4. To ensure a feasible practical implementation based on policy servers and interoperability between service providers Deliverables: 1. Specification of protocol that meets the requirements in the form of an Internet-Draft that defines the negotiation of QoS parameters, the measurement process and alert mechanisms. 2. Dimensioning rules and performance analysis 3. A set of technical requirements for a practical implementation which may include adaptative solutions and/or QoS profile modification. Goals and Milestiones ===================== Nov 2010 Submit Internet-Draft as a proposed standard for QoS application-level protocol Proposed charter for Q4S WG Informational document with rules for dimensioning and performance analysis Specification of architecture document for implementation - Jose Javier _______________________________________________ dispatch mailing list dispatch@ietf.org https://www.ietf.org/mailman/listinfo/dispatch
- [dispatch] Charter proposal for Q4S WG ( formerly… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Janet P Gunn
- Re: [dispatch] Charter proposal for Q4S WG ( form… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… DIAZ VIZCAINO, LUIS MIGUEL (LUIS MIGUEL)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Peter Musgrave
- Re: [dispatch] Charter proposal for Q4S WG ( form… Janet P Gunn
- Re: [dispatch] Charter proposal for Q4S WG ( form… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Harald Alvestrand
- Re: [dispatch] Charter proposal for Q4S WG ( form… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- [dispatch] Charter proposal for Q4S WG ( formerly… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Cullen Jennings
- Re: [dispatch] Charter proposal for Q4S WG ( form… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… DIAZ VIZCAINO, LUIS MIGUEL (LUIS MIGUEL)
- [dispatch] Q4S Protocol ( formerly Q-HTTP) GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- [dispatch] Charter proposal for Q4S WG ( formerly… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Harald Alvestrand
- Re: [dispatch] Charter proposal for Q4S WG ( form… GARCIA ARANDA, JOSE JAVIER (JOSE JAVIER)
- Re: [dispatch] Charter proposal for Q4S WG ( form… Harald Alvestrand