QoS agreements in Ambient Networks and Daidalos

1. QoS agreements in Ambient Networks and Daidalos Carlos Pinho and Filipe Sousa INESC Porto 3rd RTCM Seminar February 17, 2006 Lisbon

2. Overview • Goals of Ambient Networks and Daidalos (Daidalos) • Daidalos QoS architecture • CMS and A4C interaction • Explicit session request • Mobility of Users (WWI Ambient Networks) • The Ambient Control Space • INQA • QoS advertisement and dynamic negotiation • Mobility of ANs • Conclusion

3. Projects goals The Ambient Network strategic project goals are to: • Define an easy to use, affordable and scalable mobile communications network, creating new business opportunities for mobile network service provisioning • Facilitate "ambient networking", allowing increased competition and cooperation, enabling efficient use of resources in an environment populated by a multitude of devices, technologies and business actors The overall Daidalos objectives are to: • Design, prototype and validate the necessary infrastructure and components for efficient distribution of services over diverse network technologies beyond 3G • Integrate complementary network technologies to provide pervasive and user-centered access to these services • Develop an optimized signaling system for communication and management support in these networks • Demonstrate the results of the work through strong focus on user-centered and scenario-based development of technology

4. Ambient Control Space AN • The ACS is the heart of Ambient Networks • Contains a set of modular control functions making up an Ambient Network • It is designed to work independently of any underlying connectivity technologies • Applications interact with the control functions through the Ambient Service Interface (ASI) • Control functions of one AN interact with peer control functions through the Ambient Network Interface (ANI) • ACS functions of one AN interact with functions at the network level through the Ambient Resource Interface (ARI)

5. INQA • QoS – GSLP: processing of QoS signaling messages • Advertisement Module: takes care of SLS advertisements • Admission Control: evaluation of available resources to accept SLSs • Monitoring: Intra and Inter AN monitoring • Negotiation Module: SLS negotiation/ renegotiation • Aggregation: monitors established SLS to aggregate them

6. QoS advertisement and dynamic negotiation SLS-Sub 1 SLS-Sub a SLS-T1 SLS-Ta SLS-A1 SLS-Aa

7. Mobility of ANs

8. Daidalos QoS Architecture • MT may incorporate a QoS client able to request QoS resources (and/or QoS services) to the network in an implicit or explicit way • AR contains a set of advanced functions • Service Provision Platform (SPP) in the core network supportsadvanced services • QoS Broker performs admission control and manages network resources • MultiMedia Service Proxy (MMSP) controls the multimedia sessions. • Policy Based Network Management System (PBNMS) provides the QoS definitions • Real time network monitoring system: (1) Network Monitoring Entities (NME) (2) Central Monitoring System (CMS)

9. Aggregates • Calculates metrics CMS and A4C interaction • PBNMS Configures a measurement task in CMS for SLA conformance checking • CMS adds the task in the NME’s, configuring also an export interval of 1 second • NME exports every second a report of the collected measurements • CMS collects the reports and calculates metrics required for SLA conformance checking (delay, jitter, packet loss) • CMS aggregates the measurements by user and class of service • CMS exports the information to the A4C (inside, the SLA violation detection component collects the information) • SLA violation detection checks for each user for a QoS violation using the SLS template stored in the SLA Manager

10. Explicit QoS session request Explicit real-time QoS session set-up • Terminal issues QoS requests • Multimedia Service Platform Proxy issues QoS requests • Application server issues QoS requests • Terminal issues QoS requests through ARM

11. linkCoA(CoA1, fmsousa@daidalos.org) linkCoA(CoA2, fmsousa@daidalos.org) I’ve got CoA1 Vid:fmsousa@daidalos.org Sid: Streaming-gold Now I’ve got CoA2 Vid:fmsousa@daidalos.org Sid: Streaming-gold Mobility of Users • When a terminal associates with a new network, the registration process is triggered • QoS Broker knows the mapping between CoA and Vid • The mapping is built inside the CMS using the function linkCoA • Measurements are aggregated in the CMS using VID and DSCP and so are independent from the COAs CoA Vid Vid 14:33

12. Conclusions Daidalos solution: Ambient Networks solution: • SLSs are technology independent - can be mapped to several different QoS models • Daidalos follows a DiffServ/IntServ model and SLA intrinsically connect to these concepts • The adoption of active periods in SLSs avoids the need for e2e signaling • SLS is statically defined in the SLA Manager for each class of service (in Daidalos 4 different classes have been defined) • Enables the multiplexing of reservations over the same link • Daidalos only supports SLA conformance checking per user not per access network or even domain • Enables the dynamic and automatic creation, negotiation, establishment and removal of SLSs • The resources of an Access Network can be dynamically renegotiated depending on each user NVUP (Network Profile) • QoS advertising facilitates the establishment of SLSs - customer ANs know immediately the information about QoS resources available towards a set of destinations • The SLA conformance checking supports mobility by the adoption of Virtual identifier (Vid)

13. References • WWI - Ambient Networks: • Paulo Mendes, Jorge Andres-Colas and Carlos Pinho, “Information Model for the Specification of QoS Agreements among Ambient Networks”, PIMRC 2005 “The 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications”, September 11-14 September 2005, Berlin – Germany, Public (PU) • Inge Einar Svinnset et al, “D 3.3 Connecting Ambient Networks - Final Architecture, Protocol Design and Evaluation”, Sixth Framework Programme, Priority IST-2002-2.3.1.4, Mobile and Wireless Systems beyond 3G, Project 507134 - WWI Ambient Networks, Public (PU) • Jorge Andrés Colás et al, “D 3.2 Connecting Ambient Networks – Architecture and Protocol Design”, Sixth Framework Programme, Priority IST-2002-2.3.1.4, Mobile and Wireless Systems beyond 3G, Project 507134 - WWI Ambient Networks • Daidalos: • Hasan et al, “D3.4.1 A4C Framework Design Specification”, Sixth Framework Programme, Priority IST-2002-506997 – DAIDALOS, Public (PU) • Susana Sargento, Diogo Gomes et al, “D3.2.1 QoS Architecture and Protocol Design Specification”, Sixth Framework Programme, Priority IST-2002-506997 - DAIDALOS, Public (PU)

14. Thank you! Questions?