Implementing service quality in IP networks / / Vilho Raisanen

• Record Nr.: UNINA9911019231703321
• Autore: Räisänen Vilho
• Pubbl/distr/stampa: Chichester, West Sussex, England ; ; Hoboken, NJ, : Wiley, c2003
• ISBN: 9786610271535; 9781280271533; 1280271531; 9780470297001; 047029700X; 9780470862445; 0470862440; 9780470863794; 047086379X
• Descrizione fisica: 1 online resource (355 p.)
• Disciplina: 004.6/6
• Soggetti: Computer networks - Quality control; Telecommunication - Quality control; TCP/IP (Computer network protocol)
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. [307]-321) and index.
• Nota di contenuto: Implementing Service Quality in IP Networks; Contents; Preface; Acknowledgements; List of Figures; List of Tables; Abbreviations; 1 Drivers for the Adoption of Multi-service Networks; 1.1 Customer Perspective; 1.2 Network Operator Perspective; 1.3 Service Provider Perspective; 1.4 Summary; 2 Service Quality Requirements; 2.1 Services on the Internet; 2.2 Definition of a Service; 2.2.1 End user service versus provider-level services; 2.2.2 About service instances and service events; 2.2.3 Reference model for this section; 2.3 Service Quality Estimation; 2.3.1 Measures of end user experienced service quality2.3.2 Recency effect; 2.3.3 Psychological factors; 2.3.4 Summary; 2.4 Service Implementation Aspects; 2.4.1 Choice of transport protocols; 2.4.2 Throughput adaptability of services; 2.5 Inherent Service Quality ; Requirements; 2.5.1 Service quality characterizations in standards; 2.5.2 Availability of service; 2.5.3 Continuity of service; 2.5.4 Delivery time end-to-end; 2.5.5 Throughput; 2.5.6 Support for continuous service data unit transmission; 2.5.7 Reliability of service delivery; 2.5.8 Support for variable transfer rate; 2.5.9 Generic considerations related to service requirements2.6 Service Quality Descriptors; 2.6.1 Measurement-based determination of traffic profile; 2.7 Summary; 3 Network Mechanisms for Multi-service Quality Support; 3.1 Introduction to Network Quality Support; 3.2 Policing of Traffic at Ingress; 3.3 About Layers; 3.4 Types of Network Support for Service Quality; 3.4.1 Capacity reservation; 3.4.2 Differentiated treatment; 3.4.3 Differentiation of service quality instantiation; 3.4.4 Summary of generic network service quality support mechanisms; 3.5 Service Support in ATM; 3.5.1 ATM service models3.5.2 Summary of ATM service support; 3.6 Service Support Models in Internet Protocol; 3.6.1 Best effort service model; 3.6.2 Controlled-load service support; 3.6.3 Guaranteed QoS support; 3.6.4 RSVP; 3.6.5 Statistical QoS: DiffServ model; 3.6.5.1 EF PHB; 3.6.5.2 AF PHB group; 3.6.5.3 Other PHBs; 3.6.5.4 Functions of a DiffServ router; 3.6.5.5 Summary of DiffServ; 3.6.6 Summary of IP QoS service models; 3.7 Routing in IP Networks; 3.7.1 On addressing; 3.7.2 IP routing protocol-based methods; 3.7.3 ATM overlays; 3.7.4 Lower layer tunnels: MPLS; 3.8 Link Layer Issues; 3.8.1 Performance3.8.2 A note on scheduling; 3.9 Summary; 4 Traffic Engineering for Multi-service IP Networks; 4.1 Traffic Engineering; 4.1.1 Context of traffic engineering; 4.1.2 The traffic engineering process; 4.1.3 Obtaining performance data from the network and analysing it; 4.1.3.1 Traffic aggregate performance measurements; 4.1.3.2 Obtaining data relevant for routing control; 4.1.4 Performance enhancement; 4.1.5 Scope of network optimization; 4.2 IP Routing Control and Traffic Engineering; 4.2.1 Optimizing routing based on service quality characteristics; 4.2.2 Traffic engineering using MPLS
• Sommario/riassunto: While more and more data is shifted from circuit-switched to packet-switched networks, the users of these networks expect a smooth, continuously unproblematic service (unrelated to the amount of data transported). Therefore, the reliability of a network as well as the satisfaction of its users relies largely on Quality of Service (QoS). Service quality through resource management in IP networks will ensure that sufficient resources are available to fulfil the delay of applications and packet loss requirements.This year several books on QoS from the angle of operators/engineers have bee