Tài liệu Implementing Service Quality in IP Networks doc

[...]... IN IntServ IP IPDV IPER IPLR IPPM IPTD ISDN IS-IS ISO ISP ISSLL IT GPRS Roaming Exchange Groupe Sp´ cial Mobile e GPRS Tunneling Protocol Hypertext Mark-up Language Hypertext Transfer Protocol Internet Control Message Protocol Internet Engineering Task Force Interior Gateway Protocol Intelligent Networks Integrated Services Internet Protocol Instantaneous Packet Delay Variation /IP delay variation IP. .. static In the late 1990s, it turned out that the winning convergence layer was IP The main reasons for it being victorious stem from existing wide-scale adoption of the technology in the Internet and IP not being “owned” by a only a handful of vendors In Internet design philosophy, the state is maintained at the communication endpoints and not in the network, allowing for cost-efficient design of networking... of 20 units, with α = 1 Time and quality are measured in arbitrary units Service involving two service events: fetching a HTTP page from bank server (1) and fetching stock exchange indices from a stockbroker’s server (2) The difference in measuring one-way service and two-way service Delay-centric view of interrelation of some important service quality characteristics Service event loss correlation with... OF MATERIAL IN THIS BOOK Chapter 1 describes the technological and business scenario for multi -service networks Chapter 2 describes the service quality requirements of IP service types in the network Chapter 3 describes service quality support mechanisms that can be used in an IP- based access or transit network Chapter 4 describes how traffic engineering processes can be used in optimizing the performance... Error Rate IP Loss Rate IP Performance Metrics (working group) IP Transfer Delay Integrated Services Digital Network Intermediate System – Intermediate System International Standardization Organization Internet Service Provider Integrated Services over Specific Link Layers (working group) Information Technology ABBREVIATIONS ITU LAN LDAP LDP LEO LIS L-LSP LPDP LS LSP LSR MAAC MAC MBAC MBS MCR MIB MIPv6 MMS... implementation of service support in terminal, implementation of service quality support in network, and implementation of service by the service provider Client–server and connectivity /service paradigms illustrated The relation of concepts “aggregate service , service instance”, service event” and service quality requirement type” as used in this book Example of recency effect for quality reduction... allowing for cost-efficient design of networking equipment IP is a good convergence layer in the sense that it can be run over multiple link layer technologies, including ATM On the applications side, the Internet Engineering Task force has developed – and keeps on developing – a rich set of protocols for interfacing different kinds of service applications to IP using “Layer four” (L4) protocols such as Transfer... networks with flexible service creation is presented first A framework is developed for describing service quality, and the generic steps of service creation to service level specification are covered The protocol tools available for managing service quality in IP environment are described within a service support framework The managed technologies considered in this book include Internet Protocol versions... management and traffic engineering processes Chapter 8 describes means of managing dynamic service quality within a DiffServ domain, and between Internet domains in general Chapter 9 describes the implementation of service quality in IP RAN as a case study of the technologies discussed in the book Chapter 10 summarizes the central themes of the book, and discusses potential emerging technologies relevant... of an All -IP network 9.2 Transport domains in a GPRS/3GPP network 9.3 An illustration of RAN transport hierarchy 9.4 IP RAN architecture protocol stacks for user layer traffic 9.5 Principle of soft handover 9.6 Service mapping for user layer traffic in IP RAN 9.7 Schematic representation of end-to-end service quality computation 9.8 Schematic of the configuration half of traffic engineering in IP RAN 10.1 . h0" alt="" Implementing Service Quality in IP Networks Implementing Service Quality in IP Networks Vilho R¨ais¨anen Nokia Networks OY, Finland Copyright. Requirements 30 2.5.1 Service quality characterizations in standards 30 2.5.2 Availability of service 33 Implementing Service Quality in IP Networks Vilho R ¨ ais ¨ anen 