The importance of quality of service (QoS) has risen with the
recent evolution of telecommunication networks, which are
characterised by a great heterogeneity. While many applications
require a specific level of assurance from the network;
communication networks are characterized by different service
providers, transmission means and implementer solutions such as
asynchronous transfer mode (ATM), Internet protocol version 4
(IPv4), IPv6 and MPLS.
Providing comprehensive coverage of QoS issues within
heterogeneous network environments, "QoS Over Heterogeneous
Networks" looks to find solutions to questions such as does
QoS fit within heterogeneous networks and what is the impact on
performance if information traverses different network portions
that implement specific QoS schemes.
Includes:
* A series of algorithms and protocols to help solve potential
QoS problems.
* State of the art case studies and operative examples to
illustrate points made.
* Information on QoS mapping in terms of service-level
specification (SLS) and an in-depth discussion of related
issues
* Chapters end-to-end (E2E) QoS, QoS architecture, QoS over
heterogeneous networks and QoS internetworking and mapping.
An ideal book for graduate students, researchers and lecturers.
System designers, developers and engineers will also find
"QoS Over Heterogeneous Networks" a valuable
reference.
Autorentext
Mario Marchese is Head of Research at the Italian National Consortium for Telecommunications (CNIT) affiliated to the Research Unit of Genoa, Italy. His main areas of interest include telecommunications networks, satellite communications, transport layer over satellite and wireless networks, quality of service management over asynchronous transfer mode (ATM), Internet Protocol (IP) and multiprotocol label switching (MPLS), QoS mapping and data transport of heterogeneous networks and real-time simulation tools. He is the founder and key developer of the Genoa Research Institute Satellite Communications and Networking Laboratory, represents CNIT within the European Telecommunications Standard Institute (ETSI) and is a senior member of IEEE. He has extensive research and teaching experience and in March 2004 became Associate Professor of Telecommunications Networks at the University of Genoa.
Klappentext
The importance of quality of service (QoS) has risen with the recent evolution of telecommunication networks, which are characterised by a great heterogeneity. While many applications require a specific level of assurance from the network; communication networks are characterized by different service providers, transmission means and implementer solutions such as asynchronous transfer mode (ATM), Internet protocol version 4 (IPv4), IPv6 and MPLS.
Providing comprehensive coverage of QoS issues within heterogeneous network environments, QoS Over Heterogeneous Networks looks to find solutions to questions such as does QoS fit within heterogeneous networks and what is the impact on performance if information traverses different network portions that implement specific QoS schemes.
The Book Includes:
- A series of algorithms and protocols to help solve potential QoS problems.
- State of the art case studies and operative examples to illustrate points made.
- Information on QoS mapping in terms of service-level specification (SLS) and an in-depth discussion of related issues
- Chapters end-to-end (E2E) QoS, QoS architecture, QoS over heterogeneous networks and QoS internetworking and mapping.
An ideal book for graduate students, researchers and lecturers. System designers, developers and engineers will also find QoS Over Heterogeneous Networks a valuable reference.
Inhalt
Preface.
List of Abbreviations.
Chapter 1. What is QoS?
1.1 QoS Definition.
1.2 Applications.
1.3 QoS Metrics.
1.4 The Concept Of Traffic Flow And Traffic Class.
Chapter 2. QoS-based Networks.
2.1 Heterogeneous QoS-Based Networks.
2.2 The Concept Of Autonomous Systems.
Chapter 3. QoS-Oriented Technologies.
3.1 Layered Architecture And Remote Systems Connections Protocol Stack.
3.2 Atm.
3.3 Mpls.
3.4 QoS-IPv4.
3.4.1 Integrated Services.
3.4.2 Differentiated Services.
3.4.3 Mixed Intserv-Diffserv Approach.
3.4.4 Dscp Assignation.
3.5 QoS-IPv6.
3.6 Class Of Service Full IPv6 Network (Csf6n).
3.7 Full IPv6 Switched Network (F6sn).
Chapter 4. Network Control Issues.
4.1 QoS Management Functions.
4.1.1 Overprovisioning.
4.1.2 Flow Identification.
4.1.3 Resource Reservation And CAC.
4.1.4 Traffic Control (Shaping).
4.1.5 Scheduling.
4.1.6 Queue Management.
4.1.7 Flow Control.
4.1.8 QoS Routing.
4.2 The Risk Of No Control.
4.2.1 Flow Identification.
4.2.2 Cac.
4.2.3 Shaping.
4.2.4 Resource Allocation.
Chapter 5. QoS Over Heterogeneous Networks.
5.1 Scenarios And Problems.
5.2 Vertical QoS Mapping.
5.2.1 Information Transport Technologies.
5.2.2 Formal Relation Among The Layers.
5.3 Horizontal QoS Mapping.
Chapter 6. QoS Architectures.
6.1 End-To-End Quality Of Service: State-Of-The-Art.
6.2 Architectures For QoS Control.
6.3 "Technology"-Centric QoS Architecture.
6.4 IP-Centric QoS Architecture.
6.4.1 Architectures And Data Encapsulation.
6.4.2 Intserv-IP-Centric QoS Architecture.
6.4.3 Diffserv-IP-Centric QoS Architecture.
6.5 Mpls-Centric QoS Approach.
6.5.1 Mpls-Integrated QoS Approach.
6.5.2 Full-Mpls-Centric QoS Approach.
6.6 IPv6-Centric QoS Approach.
6.7 QoS Overall Architecture.
6.8 QoS Architectures Comparison.
6.8.1 Comparison Of The Features.
6.8.2 Sls Separation Versus Aggregation.
Chapter 7. Signalling Over QoS Architectures.
7.1 Introduction.
7.2 Rsvp QoS Signalling.
7.2.1 Rsvp Architecture.
7.2.2 Rsvp Objects.
7.2.3 Rsvp Entities And Resource Reservation Applied To QoS Architectures.
7.2.4 Rsvp Functional Specification (Rsvp Packet Format).
7.2.5 Summary Of Rsvp Protocol Mechanism.
7.2.6 Rsvp Extension For Diffserv QoS Signalling.
7.3 RSVP-TE.
7.3.1 Introduction.
7.3.2 New Objects Definition.
7.3.3 Control Actions.
7.3.4 RSVP-TE And Scalability.
7.3.5 Remarks.
7.4 NSIS QoS Signalling.
7.4.1 Requirements And Application Scenarios.
7.5 Q-BGP (Quality Of Service Enhanced- Border Gateway Protocol).
7.5.1 Introduction To BGP.
7.5.2 BGP Message Formats.
7.5.3 Additional Information Carried By Q-BGP.
7.6 Final Remarks Concerning Signalling.
Chapter 8. Vertical QoS Mapping.
8.1 Reference Architecture.
8.2 Control Modules.
8.3 Technology Independent Layers' Implementation.
8.4 Technology Dependent Layers Implementation.
8.5 TI-SAP Implementation.
8.6 Vertical QoS Mapping Problems.
8.6.1 Change Of Information Unit.
8.6.2 Heterogeneous Traffic Aggregation.
8.6.3 Fading Effect.
8.6.4 Joint Problems.
Chapter 9. Algorithm For Vertical QoS Mapping.
9.1 Introduction.
9.2 Network Optimization: State-Of-The-Art.
9.3 The SI-SAP QoS Mapping Problem.
9.3.1 System Constraints And Assumptions.
9.3.2 Stochastic Fluid Model And Optimization Problem.
9.3.3 Reference Chaser Bandwidth Controller (RCBC).
9.3.4 Alternative Approach: Equivalent Bandwidth …