Deploying IP and MPLS QoS for Multiservice Networks Theory and Practice

• Main Authors: Evans, John William, Filsfils, Clarence
• Format: eBook
• Language: English
• Published: Chantilly Elsevier Science & Technology 2007; Morgan Kaufmann
• Edition: 1
• Series: The Morgan Kaufmann Series in Networking
• Subjects: Computer networks; Integrated services digital networks; MPLS standard; Multicasting (Computer networks); Quality control; Reliability

QoS, short for "quality of service," is one of the most important goals a network designer or administrator will have. Ensuring that the network runs at optimal precision with data remaining accurate, traveling fast, and to the correct user are the main objectives of QoS. The various media...

Table of Contents:

• 6.2.1 The Problem -- 6.2.2 IGP Metric-based Traffic Engineering -- 6.2.3 MPLS Traffic Engineering -- References -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W
• Front Cover -- Deploying IP and MPLS QOS for Multiservice Networks -- Copyright Page -- Contents -- Preface -- Acknowledgments -- About the authors -- Chapter 1 QOS Requirements and Service Level Agreements -- 1.1 Introduction -- 1.2 SLA Metrics -- 1.2.1 Network Delay -- 1.2.2 Delay-jitter -- 1.2.3 Packet Loss -- 1.2.4 Bandwidth and Throughput -- 1.2.5 Per Flow Sequence Preservation -- 1.2.6 Availability -- 1.2.7 Quality of Experience -- 1.3 Application SLA Requirements -- 1.3.1 Voice over IP -- 1.3.2 Video -- 1.3.3 Data Applications -- 1.4 Marketed SLAs versus Engineered SLAs -- 1.4.1 End-to-End SLAs vs Segmented SLAs -- 1.4.2 Inter-provider SLAs -- 1.5 Intserv and Diffserv SLAs -- References -- Chapter 2 Introduction to QOS Mechanics and Architectures -- 2.1 What is Quality of Service? -- 2.1.1 Quality of Service vs Class of Service or Type of Service? -- 2.1.2 Best-effort Service -- 2.1.3 The Timeframes that Matter for QOS -- 2.1.4 Why IP QOS? -- 2.1.5 The QOS Toolset -- 2.2 Data Plane QOS Mechanisms -- 2.2.1 Classification -- 2.2.2 Marking -- 2.2.3 Policing and Metering -- 2.2.4 Queuing, Scheduling, Shaping, and Dropping -- 2.2.5 Link Fragmentation and Interleaving -- 2.3 IP QOS Architectures -- 2.3.1 A Short History of IP Quality of Service -- 2.3.2 Type of Service/IP Precedence -- 2.3.3 Integrated Services Architecture -- 2.3.4 Differentiated Services Architecture -- 2.3.5 IPv6 QOS Architectures -- 2.3.6 MPLS QOS Architectures -- 2.3.7 IP Multicast and QOS -- 2.4 Typical Router QOS Implementations in Practice -- 2.5 Layer 2 QOS -- 2.5.1 ATM -- 2.5.2 Frame-relay -- 2.5.3 Ethernet -- 2.6 Complementary Technologies -- 2.7 Where QOS cannot make a difference -- References -- Appendix 2.A: Precedence, TOS, and DSCP Conversion -- 2.A.1 Notation -- 2.A.2 Conversion -- Chapter 3 Deploying Diffserv -- 3.1 Introduction
• 3.2 Deploying Diffserv at the Network Edge -- 3.2.1 Why is the Edge Key for Tight SLA Services? -- 3.2.2 Edge Diffserv Case Study -- 3.3 Deploying Diffserv in the Network Backbone -- 3.3.1 Is Diffserv Needed in the Backbone? -- 3.3.2 Core Case Study -- 3.4 Tuning (W)RED -- 3.4.1 Tuning the Exponential Weighting Constant -- 3.4.2 Tuning Minth and Maxth -- 3.4.3 Mark Probability Denominator -- 3.4.4 In- and Out-of-contract -- References -- Chapter 4 Capacity Admission Control -- 4.1 Introduction -- 4.1.1 When is Admission Control Needed? -- 4.1.2 A Taxonomy for Admission Control -- 4.1.3 What Information is Needed for Admission Control? -- 4.1.4 Parameterized or Measurements-based Algorithms -- 4.2 Topology-unaware Off-path CAC -- 4.3 Topology-aware Off-path CAC: "Bandwidth Manager -- 4.3.1 Example Bandwidth Manager Method of Operation: Next Generation Network Voice CAC -- 4.4 The Integrated Services Architecture/RSVP -- 4.4.1 RSVP -- 4.4.2 RSVP Example Reservation Setup -- 4.4.3 Application Signaling Interaction -- 4.4.4 Intserv over Diffserv -- 4.4.5 RSVP Aggregation -- 4.4.6 RSVP Traffic Engineering -- 4.5 NSIS -- 4.6 End-system Measurement-based Admission Control -- 4.7 Summary -- References -- Chapter 5 SLA and Network Monitoring -- 5.1 Introduction -- 5.2 Passive Network Monitoring -- 5.2.1 How Often to Poll? -- 5.2.2 Per-link Statistics -- 5.2.3 System Monitoring -- 5.2.4 Core Traffic Matrix -- 5.3 Active Network Monitoring -- 5.3.1 Test Stream Parameters -- 5.3.2 Active Measurement Metrics -- 5.3.3 Deployment Considerations -- References -- Chapter 6 Core Capacity Planning and Traffic Engineering -- 6.1 Core Network Capacity Planning -- 6.1.1 Capacity Planning Methodology -- 6.1.2 Collecting the Traffic Demand Matrices -- 6.1.3 Determine Appropriate Over-provisioning Factors -- 6.1.4 Simulation and Analysis -- 6.2 IP Traffic Engineering