Autore	Barreiros Miguel <1977->
Edizione	[Second edition.]
Pubbl/distr/stampa	Chichester, West Sussex, UK : , : John Wiley & Sons Inc., , 2016
Descrizione fisica	1 online resource (256 p.)
Disciplina	004.6
Collana	Wiley series on communications networking & distributed systems Wiley series in communications networking & distributed systems
Soggetto topico	Computer networks - Quality control Telecommunication - Traffic Telecommunication systems - Evaluation
ISBN	1-119-10912-4 1-119-10911-6
Formato	Materiale a stampa
Livello bibliografico	Monografia
Lingua di pubblicazione	eng
Nota di contenuto	-- About the Authors x -- Foreword xi -- Preface xiii -- Acknowledgments xv -- Abbreviations xvi -- Part I THE QOS REALM 1 -- 1 The QOS World 3 -- 1.1 Operation and Signaling 4 -- 1.2 Standards and Per?]Hop Behavior 5 -- 1.3 Traffic Characterization 8 -- 1.4 A Router without QOS 11 -- 1.5 Conclusion 12 -- References 12 -- Further Reading 12 -- 2 The QOS Tools 13 -- 2.1 Classifiers and Classes of Service 13 -- 2.2 Metering and Coloring - CIR/PIR Model 15 -- 2.3 The Policer Tool 16 -- 2.4 The Shaper Function 17 -- 2.5 Comparing Policing and Shaping 18 -- 2.6 Queue 19 -- 2.7 The Scheduler 21 -- 2.8 The Rewrite Tool 21 -- 2.9 Example of Combining Tools 23 -- 2.10 Delay and Jitter Insertion 27 -- 2.11 Packet Loss 31 -- 2.12 Conclusion 32 -- Reference 33 -- 3 Challenges 34 -- 3.1 Defining the Classes of Service 35 -- 3.2 Classes of Service and Queues Mapping 37 -- 3.3 Inherent Delay Factors 40 -- 3.4 Congestion Points 46 -- 3.5 Trust Borders 49 -- 3.6 Granularity Levels 51 -- 3.7 Control Traffic 53 -- 3.8 Trust, Granularity, and Control Traffic 54 -- 3.9 Conclusion 56 -- Further Reading 56 -- 4 Special Traffic Types and Networks 57 -- 4.1 Layer 4 Transport Protocols: UDP and TCP 58 -- 4.1.1 The TCP Session 61 -- 4.1.2 TCP Congestion Mechanism 64 -- 4.1.3 TCP Congestion Scenario 65 -- 4.1.4 TCP and QOS 66 -- 4.2 Data Center 67 -- 4.2.1 SAN Traffic 68 -- 4.2.2 Lossless Ethernet Networks 69 -- 4.2.3 Virtualization 71 -- 4.2.4 Software Defined Networks 73 -- 4.2.5 DC and QOS 74 -- 4.3 Real?]Time Traffic 74 -- 4.3.1 Control and Data Traffic 75 -- 4.3.2 Voice over IP 76 -- 4.3.3 IPTV 78 -- 4.3.4 QOS and Real?]Time Traffic 79 -- Reference 80 -- Further Reading 80 -- Part II TOOLS 81 -- 5 Classifiers 83 -- 5.1 Packet QOS Markings 84 -- 5.2 Inbound Interface Information 85 -- 5.3 Deep Packet Inspection 87 -- 5.4 Selecting Classifiers 88 -- 5.5 The QOS Network Perspective 89 -- 5.6 MPLS DiffServ?]TE 92 -- 5.7 Mixing Different QOS Realms 94 -- 5.8 Conclusion 99 -- References 100 -- 6 Policing and Shaping 101. 6.1 Token Buckets 101 -- 6.2 Traffic Bursts 106 -- 6.3 Dual?]Rate Token Buckets 109 -- 6.4 Shapers and Leaky Buckets 110 -- 6.5 Excess Traffic and Oversubscription 112 -- 6.6 Comparing and Applying Policer and Shaper Tools 113 -- 6.7 Conclusion 116 -- Reference 116 -- 7 Queuing and Scheduling 117 -- 7.1 Queuing and Scheduling Concepts 117 -- 7.2 Packets and Cellification 119 -- 7.3 Different Types of Queuing Disciplines 121 -- 7.4 FIFO 121 -- 7.5 FQ 123 -- 7.6 PQ 125 -- 7.7 WFQ 127 -- 7.8 WRR 128 -- 7.9 DWRR 131 -- 7.10 PB?]DWRR 137 -- 7.11 Conclusions about the Best Queuing Discipline 141 -- Further Reading 142 -- 8 Advanced Queuing Topics 143 -- 8.1 Hierarchical Scheduling 143 -- 8.2 Queue Lengths and Buffer Size 146 -- 8.3 Dynamically Sized versus Fixed?]Size Queue Buffers 149 -- 8.4 RED 150 -- 8.5 Using RED with TCP Sessions 152 -- 8.6 Differentiating Traffic inside a Queue with WRED 154 -- 8.7 Head versus Tail RED 156 -- 8.8 Segmented and Interpolated RED Profiles 158 -- 8.9 Conclusion 160 -- Reference 161 -- Further Reading 161 -- Part III CASE STUDIES 163 -- 9 The VPLS Case Study 165 -- 9.1 High?]Level Case Study Overview 166 -- 9.2 Virtual Private Networks 167 -- 9.3 Service Overview 168 -- 9.4 Service Technical Implementation 170 -- 9.5 Network Internals 171 -- 9.6 Classes of Service and Queue Mapping 172 -- 9.7 Classification and Trust Borders 174 -- 9.8 Admission Control 175 -- 9.9 Rewrite Rules 176 -- 9.10 Absorbing Traffic Bursts at the Egress 179 -- 9.11 Queues and Scheduling at Core?]Facing Interfaces 179 -- 9.12 Queues and Scheduling at Customer?]Facing Interfaces 182 -- 9.13 Tracing a Packet through the Network 183 -- 9.14 Adding More Services 186 -- 9.15 Multicast Traffic 188 -- 9.16 Using Bandwidth Reservations 190 -- 9.17 Conclusion 191 -- Further Reading 191 -- 10 Case Study QOS in the Data Center 192 -- 10.1 The New Traffic Model for Modern Data Centers 192 -- 10.2 The Industry Consensus about Data Center Design 196 -- 10.3 What Causes Congestion in the Data Center? 199. 10.3.1 Oversubscription versus Microbursts 199 -- 10.3.2 TCP Incast Problem 202 -- 10.4 Conclusions 205 -- Further Reading 207 -- 11 Case Study IP RAN and Mobile Backhaul QOS 208 -- 11.1 Evolution from 2G to 4G 208 -- 11.2 2G Network Components 209 -- 11.3 Traffic on 2G Networks 211 -- 11.4 3G Network Components 211 -- 11.5 Traffic on 3G Networks 215 -- 11.6 LTE Network Components 216 -- 11.7 LTE Traffic Types 219 -- 11.8 LTE Traffic Classes 220 -- 11.9 Conclusion 224 -- References 227 -- Further Reading 227 -- 12 Conclusion 228 -- Index 230.
Record Nr.	UNINA-9910810056903321

Edizione	[1st ed. 2003.]
Pubbl/distr/stampa	Berlin, Germany : , : Springer, , [2003]
Descrizione fisica	1 online resource (XVI, 764 p.)
Disciplina	004.66
Collana	Lecture Notes in Computer Science
Soggetto topico	Computer networks - Quality control Computer networks - Reliability Integrated services digital networks - Quality control
ISBN	3-540-36480-3
Formato	Materiale a stampa
Livello bibliografico	Monografia
Lingua di pubblicazione	eng
Nota di contenuto	Analytical Models I -- On Evaluating Loss Performance Deviation: A Simple Tool and Its Practical Implications -- Extending the Network Calculus Pay Bursts Only Once Principle to Aggregate Scheduling -- Modelling the Arrival Process for Packet Audio -- On Packet Delays and Segmentation Methods in IP Based UMTS Radio Access Networks -- QoS Routing -- On Performance Objective Functions for Optimising Routed Networks for Best QoS -- An Adaptive QoS-routing Algorithm for IP Networks Using Genetic Algorithms -- A QoS Routing Mechanism for Reducing the Routing Inaccuracy Effects -- Stability and Scalability Issues in Hop-by-Hop Class-Based Routing -- Measurements and Experimental Results -- Network Independent Available Bandwidth Sampling and Measurement -- Less than Best Effort: Application Scenarios and Experimental Results -- TStat: TCP STatistic and Analysis Tool -- End-to-End QoS Supported on a Bandwidth Broker -- Multidomain End to End IP QoS and SLA -- QoS Below IP -- Dimensioning Models of Shared Resources in Optical Packet Switching Architectures -- Efficient Usage of Capacity Resources in Survivable MP?S Networks -- Performance Evaluation of a Distributed Scheme for Protection against Single and Double Faults for MPLS -- Edge Distributed Admission Control for Performance Improvement in Traffic Engineered Networks -- End-to-End QoS in IP Networks -- Bandwidth Estimation for TCP Sources and Its Application -- Best-Effort and Guaranteed Performance Services in Telecommunications Networks: Pricing and Call Admission Control Techniques -- TCP Smart Framing: A Segmentation Algorithm to Improve TCP Performance -- Live Admission Control for Video Streaming -- QoS Multicast -- DQM: An Overlay Scheme for Quality of Service Differentiation in Source Specific Multicast -- Directed Trees in Multicast Routing -- A Proposal for a Multicast Protocol for Live Media -- On the Use of Sender Adaptation to Improve Stability and Fairness for Layered Video Multicast -- Analytical Models II -- A New Fluid-Based Methodology to Model AQM Techniques with Markov Arrivals -- Stochastic Petri Nets Models for the Performance Analysis of TCP Connections Supporting Finite Data Transfer -- A Queueing Network Model of Short-Lived TCP Flows with MixedWired and Wireless Access Links -- TCP-SACK Analysis and Improvement through OMQN Models -- Optical Networks -- QoS Provision in Optical Networks by Shared Protection: An Exact Approach -- Design of WDM Networks Exploiting OTDM and Light-Splitters -- DWDM for QoS Management in Optical Packet Switches -- Space Division Architectures for Crosstalk Reduction in Optical Interconnection Networks -- Reconfigurable Protocols and Networks -- The RAMON Module: Architecture Framework and Performance Results -- Reconfigurable Packet Scheduling for Radio Access Jointly Adaptive to Traffic and Channel -- Mobility Management in a Reconfigurable Environment: The RAMON Approach -- Improving End-to-End Performance in Reconfigurable Networks through Dynamic Setting of TCP Parameters -- Provision of Multimedia Services -- Adaptive MPEG-4 Video Streaming with Bandwidth Estimation -- Dynamic Quality Adaptation Mechanisms for TCP-friendly MPEG-4 Video Transfer -- Traffic Sensitive Active Queue Management for Improved Multimedia Streaming -- A QoS Providing Multimedia Ad Hoc Wireless LAN with Granular OFDM-CDMA Channel -- QoS in Multidomain Networks -- SIP Originated Dynamic Resource Configuration in DiffServ Networks: SIP / COPS / Traffic Control Mechanisms -- Virtual Flow Deviation: Dynamic Routing of Bandwidth Guaranteed Connections -- Design and Implementation of a Test Bed for QoS Trials -- A Linux-Based Testbed for Multicast Sessions Set-Up in Diff-Serv Networks_ -- Invited Paper -- Light-Trails: A Solution to IP Centric Communication in the Optical Domain -- Congestion and Admission Control -- End-to-End Bandwidth Estimation for Congestion Control in Packet Networks -- Priority-Based Internet Access Control for Fairness Improvement and Abuse Reduction -- A Probing Approach for Effective Distributed Resource Reservation -- Dynamic Adaptation of Virtual Network Capacity for Deterministic Service Guarantees -- Architectures and Protocols for QoS Provision -- Towards RSVP Version 2 -- Analysis of SIP, RSVP, and COPS Interoperability -- Simulation Study of Aggregate Flow Control to Improve QoS in a Differentiated Services Network -- Quality of Service Multicasting over Differentiated Services Networks.
Record Nr.	UNISA-996465295003316

Edizione	[1st ed. 2021.]
Pubbl/distr/stampa	Cham, Switzerland : , : Springer, , [2021]
Descrizione fisica	1 online resource (IX, 271 p. 123 illus., 104 illus. in color.)
Disciplina	004.6
Collana	Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
Soggetto topico	Computer networks - Quality control Computer networks - Security measures Computer networks - Reliability
ISBN	3-030-77569-0
Formato	Materiale a stampa
Livello bibliografico	Monografia
Lingua di pubblicazione	eng
Nota di contenuto	Research and Application of Visual SLAM based on Embedded GPU -- Hardware Trojan Detection Method Based on Multifeatured GEP -- Sleep Apnea Monitoring System Based on Channel State Information -- Energy-efficient DAC Scheme Based on Unit Capacitor Switching for SAR ADCs -- The SDN-governed Ad Hoc Swarm for Mobile Surveillance of Meteorological Facilities -- Research on Optimizing the Location and Capacity of Electric Vehicle Charging Stations Research on Semantic Vision SLAM towards Dynamic Environment -- IAA Spectral Estimation in the Selective range -- Robust frequency estimation under additive mixture noise -- Data Augmentation for Cardiac Magnetic Resonance Image using Evolutionary GAN -- Analysis of Spectrum Detection and Decision using Machine Learning Algorithms in Cognitive Mobile Radio Networks -- AutoMTS: fully autonomous processing of multivariate time series data from heterogeneous sensor networks -- Image Extrapolation Based on Perceptual Loss and Style Loss -- Comparison of Two Fourier Transform Methods in Modulation Measurement Profilometry -- Research on Image Enhancement Model Based on Variable Order Fractional Differential CLAHE -- Optimum Parameter Estimation under Additive Cauchy-Gaussian Mixture Noise -- Face reconstruction with specific weight mask -- Stability analysis of quaternion-valued neural network with non-differentiable time-varying delays and constant delays -- Learn to rectify label through kernel extreme learning machine. .
Record Nr.	UNINA-9910484118403321

Pubbl/distr/stampa	Hauppauge, NY, : Nova Science Publishers, c2011
Descrizione fisica	1 online resource (239 p.)
Disciplina	004.67/8
Altri autori (Persone)	WangNing <1974->
Collana	Computer science, technology and applications
Soggetto topico	Internet - Quality control Computer networks - Quality control
Soggetto genere / forma	Electronic books.
ISBN	1-61122-386-5
Formato	Materiale a stampa
Livello bibliografico	Monografia
Lingua di pubblicazione	eng
Record Nr.	UNINA-9910452490003321