sus Overhead 9 Throughput 9 Deep Packet Inspection: Traffic Management and Monitoring How Deep Packet Inspection Works 12 Using DPI to Manage Networks in Private and Public Educational Institutions 13 Government Use of Deep Packet Inspection: Packet Capture 14 Contents Compression 14 Compression: The Engine behind TV on the Internet 16 Streaming: Listening and Viewing without Downloading Advancements in Compression 17 Using Codecs to Compress and Digitize Speech 17 Increasing Network Capabilities via Multiplexing Time-Division Multiplexing 18 Statistical Multiplexing and Achieving Efficient Utilization via Priority Network Services 19 Wide Area Network Acceleration and Optimization Using Protocols to Establish a Common Set of Rules Protocols and Layers Cloud Computing The Evolution of Cloud Computing 26 Links between the Cloud and Customers Cloud Computing Fees Subsets of Cloud Computing 29 SaaS 29 PaaS: Cloud-Based Data Centers with Specialized Software laaS: Cloud Services Using Third-Party Infrastructure 31 Computing as a Utility Cloud Computing for Residential and Small-Business Consumers 33 Moving Applications between Providers and to the Cloud 33 Single Servers Functioning as Multiple Servers via Virtualization 35 Scalability and Energy Savings 36 Virtualization and Cloud Computing 36 Virtualization and Storage 38 Network Cabling 38 The Disadvantages of Copper Cabling 39 Fiber-Optic Cabling in Commercial Organizations 42 Summary 44 Appendix 46 Contents 2 Data Centers and IP Private Branch Exchanges Introduction Next-Generation Data Centers: Virtualization and Gigabit Speeds Private Clouds within Data Centers 53 Protocols for Communications in LANs Fibre Channel in Storage Area Networks Server and Storage Virtualization Fibre Channel over Ethernet 60 The Costs and Operational Issues of FCoE Network Operating Systems 61 The Impact of Virtualized Hardware Failure 62 Environmental Controls in Data Centers 62 Taking Advantage of Modular Construction for Data Center Structures 64 Managing Users' Computers via Des