Foundations of Modern Networking
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- Preface xxi PART I MODERN NETWORKING 3 Chapter 1: Elements of Modern Networking 4 1.1 The Networking Ecosystem . . . . . . . . . . . . . . . . . . . 5 1.2 Example Network Architectures . . . . . . . . . . . . . . . . . 7 A Global Network Architecture . . . . . . . . . . . . . . . . . . 7 A Typical Network Hierarchy . . . . . . . . . . . . . . . . . . 9 1.3 Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Applications of Ethernet . . . . . . . . . . . . . . . . . . . . 11 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Ethernet Data Rates . . . . . . . . . . . . . . . . . . . . . 14 1.4 Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Applications of Wi-Fi . . . . . . . . . . . . . . . . . . . . . 19 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Wi-Fi Data Rates . . . . . . . . . . . . . . . . . . . . . . . 21 1.5 4G/5G Cellular . . . . . . . . . . . . . . . . . . . . . . . . 23 First Generation . . . . . . . . . . . . . . . . . . . . . . . 23 Second Generation . . . . . . . . . . . . . . . . . . . . . . 23 Third Generation . . . . . . . . . . . . . . . . . . . . . . . 24 Fourth Generation . . . . . . . . . . . . . . . . . . . . . . 24 Fifth Generation . . . . . . . . . . . . . . . . . . . . . . . 25 1.6 Cloud Computing . . . . . . . . . . . . . . . . . . . . . . 25 Cloud Computing Concepts . . . . . . . . . . . . . . . . . . 26 The Benefits of Cloud Computing . . . . . . . . . . . . . . . . 27 Cloud Networking . . . . . . . . . . . . . . . . . . . . . . 28 Cloud Storage . . . . . . . . . . . . . . . . . . . . . . . . 28 1.7 Internet of Things. . . . . . . . . . . . . . . . . . . . . . . 28 Things on the Internet of Things . . . . . . . . . . . . . . . . 28 Evolution . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Layers of the Internet of Things . . . . . . . . . . . . . . . . . 29 1.8 Network Convergence . . . . . . . . . . . . . . . . . . . . 30 1.9 Unified Communications . . . . . . . . . . . . . . . . . . . 33 1.10 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 37 1.11 References . . . . . . . . . . . . . . . . . . . . . . . . . 37 Chapter 2: Requirements and Technology 38 2.1 Types of Network and Internet Traffic . . . . . . . . . . . . . . 39 Elastic Traffic . . . . . . . . . . . . . . . . . . . . . . . . 39 Inelastic Traffic . . . . . . . . . . . . . . . . . . . . . . . 40 Real-Time Traffic Characteristics . . . . . . . . . . . . . . . . 43 2.2 Demand: Big Data, Cloud Computing, and Mobile Traffic . . . . . . 45 Big Data . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Cloud Computing . . . . . . . . . . . . . . . . . . . . . . 48 Mobile Traffic . . . . . . . . . . . . . . . . . . . . . . . . 51 2.3 Requirements: QoS and QoE . . . . . . . . . . . . . . . . . . 53 Quality of Service . . . . . . . . . . . . . . . . . . . . . . 53 Quality of Experience . . . . . . . . . . . . . . . . . . . . . 54 2.4 Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 55 Packet Forwarding . . . . . . . . . . . . . . . . . . . . . . 56 Routing Protocols . . . . . . . . . . . . . . . . . . . . . . 57 Elements of a Router . . . . . . . . . . . . . . . . . . . . . 59 2.5 Congestion Control . . . . . . . . . . . . . . . . . . . . . . 60 Effects of Congestion . . . . . . . . . . . . . . . . . . . . . 60 Congestion Control Techniques . . . . . . . . . . . . . . . . 64 2.6 SDN and NFV . . . . . . . . . . . . . . . . . . . . . . . . 67 Software-Defined Networking . . . . . . . . . . . . . . . . . 67 Network Functions Virtualization . . . . . . . . . . . . . . . . 69 2.7 Modern Networking Elements . . . . . . . . . . . . . . . . . 71 2.8 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 72 2.9 References . . . . . . . . . . . . . . . . . . . . . . . . . 73 PART II SOFTWARE DEFINED NETWORKS 75 Chapter 3: SDN: Background and Motivation 76 3.1 Evolving Network Requirements . . . . . . . . . . . . . . . . 77 Demand Is Increasing . . . . . . . . . . . . . . . . . . . . . 77 Supply Is Increasing . . . . . . . . . . . . . . . . . . . . . 77 Traffic Patterns Are More Complex . . . . . . . . . . . . . . . 78 Traditional Network Architectures are Inadequate . . . . . . . . . 79 3.2 The SDN Approach . . . . . . . . . . . . . . . . . . . . . . 80 Requirements. . . . . . . . . . . . . . . . . . . . . . . . 80 SDN Architecture . . . . . . . . . . . . . . . . . . . . . . . 81 Characteristics of Software-Defined Networking . . . . . . . . . . 85 3.3 SDN- and NFV-Related Standards . . . . . . . . . . . . . . . 85 Standards-Developing Organizations . . . . . . . . . . . . . . 87 Industry Consortia . . . . . . . . . . . . . . . . . . . . . . 89 Open Development Initiatives . . . . . . . . . . . . . . . . . 89 3.4 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 91 3.5 References . . . . . . . . . . . . . . . . . . . . . . . . . 91 Chapter 4: SDN Data Plane and OpenFlow 92 4.1 SDN Data Plane . . . . . . . . . . . . . . . . . . . . . . . 93 Data Plane Functions . . . . . . . . . . . . . . . . . . . . . 93 Data Plane Protocols . . . . . . . . . . . . . . . . . . . . . 95 4.2 OpenFlow Logical Network Device . . . . . . . . . . . . . . . 95 Flow Table Structure . . . . . . . . . . . . . . . . . . . . . 98 Flow Table Pipeline . . . . . . . . . . . . . . . . . . . . . 102 The Use of Multiple Tables . . . . . . . . . . . . . . . . . . 106 Group Table . . . . . . . . . . . . . . . . . . . . . . . . 107 4.3 OpenFlow Protocol . . . . . . . . . . . . . . . . . . . . . 109 4.4 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 111 Chapter 5: SDN Control Plane 112 5.1 SDN Control Plane Architecture . . . . . . . . . . . . . . . . 113 Control Plane Functions . . . . . . . . . . . . . . . . . . . 113 Southbound Interface . . . . . . . . . . . . . . . . . . . . 116 Northbound Interface . . . . . . . . . . . . . . . . . . . . 117 Routing . . . . . . . . . . . . . . . . . . . . . . . . . . 119 5.2 ITU-T Model . . . . . . . . . . . . . . . . . . . . . . . . 120 5.3 OpenDaylight . . . . . . . . . . . . . . . . . . . . . . . . 122 OpenDaylight Architecture . . . . . . . . . . . . . . . . . . 122 OpenDaylight Helium . . . . . . . . . . . . . . . . . . . . 124 5.4 REST . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 REST Constraints . . . . . . . . . . . . . . . . . . . . . . 128 Example REST API . . . . . . . . . . . . . . . . . . . . . 130 5.5 Cooperation and Coordination Among Controllers . . . . . . . . 133 Centralized Versus Distributed Controllers . . . . . . . . . . . . 133 High-Availability Clusters . . . . . . . . . . . . . . . . . . . 134 Federated SDN Networks . . . . . . . . . . . . . . . . . . . 135 Border Gateway Protocol . . . . . . . . . . . . . . . . . . . 136 Routing and QoS Between Domains . . . . . . . . . . . . . . 137 Using BGP for QoS Management . . . . . . . . . . . . . . . 138 IETF SDNi . . . . . . . . . . . . . . . . . . . . . . . . . 140 OpenDaylight SNDi . . . . . . . . . . . . . . . . . . . . . 141 5.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 143 5.7 References . . . . . . . . . . . . . . . . . . . . . . . . . 143 Chapter 6: SDN Application Plane 144 6.1 SDN Application Plane Architecture . . . . . . . . . . . . . . 145 Northbound Interface . . . . . . . . . . . . . . . . . . . . 146 Network Services Abstraction Layer . . . . . . . . . . . . . . 146 Network Applications . . . . . . . . . . . . . . . . . . . . 147 User Interface . . . . . . . . . . . . . . . . . . . . . . . 147 6.2 Network Services Abstraction Layer . . . . . . . . . . . . . . 147 Abstractions in SDN . . . . . . . . . . . . . . . . . . . . . 147 Frenetic . . . . . . . . . . . . . . . . . . . . . . . . . . 150 6.3 Traffic Engineering . . . . . . . . . . . . . . . . . . . . . 153 PolicyCop . . . . . . . . . . . . . . . . . . . . . . . . . 153 6.4 Measurement and Monitoring . . . . . . . . . . . . . . . . . 157 6.5 Security . . . . . . . . . . . . . . . . . . . . . . . . . . 157 OpenDaylight DDoS Application . . . . . . . . . . . . . . . . 157 6.6 Data Center Networking . . . . . . . . . . . . . . . . . . . 162 Big Data over SDN . . . . . . . . . . . . . . . . . . . . . 163 Cloud Networking over SDN . . . . . . . . . . . . . . . . . 164 6.7 Mobility and Wireless . . . . . . . . . . . . . . . . . . . . 168 6.8 Information-Centric Networking . . . . . . . . . . . . . . . . 168 CCNx . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 Use of an Abstraction Layer . . . . . . . . . . . . . . . . . . 170 6.9 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 173 PART III VIRTUALIATION 175 Chapter 7: Network Functions Virtualization: Concepts and Architecture 176 7.1 Background and Motivation for NFV . . . . . . . . . . . . . . 177 7.2 Virtual Machines . . . . . . . . . . . . . . . . . . . . . . 178 The Virtual Machine Monitor. . . . . . . . . . . . . . . . . . 179 Architectural Approaches . . . . . . . . . . . . . . . . . . . 180 Container Virtualization . . . . . . . . . . . . . . . . . . . . 183 7.3 NFV Concepts . . . . . . . . . . . . . . . . . . . . . . . 184 Simple Example of the Use of NFV . . . . . . . . . . . . . . . 188 NFV Principles . . . . . . . . . . . . . . . . . . . . . . . 189 High-Level NFV Framework . . . . . . . . . . . . . . . . . . 190 7.4 NFV Benefits and Requirements . . . . . . . . . . . . . . . . 191 NFV Benefits . . . . . . . . . . . . . . . . . . . . . . . . 191 NFV Requirements . . . . . . . . . . . . . . . . . . . . . 192 7.5 NFV Reference Architecture . . . . . . . . . . . . . . . . . . 193 NFV Management and Orchestration . . . . . . . . . . . . . . 194 Reference Points . . . . . . . . . . . . . . . . . . . . . . 195 Implementation . . . . . . . . . . . . . . . . . . . . . . . 196 7.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 197 7.7 References . . . . . . . . . . . . . . . . . . . . . . . . . 197 Chapter 8: NFV Functionality 198 8.1 NFV Infrastructure . . . . . . . . . . . . . . . . . . . . . . 199 Container Interface . . . . . . . . . . . . . . . . . . . . . 199 Deployment of NFVI Containers . . . . . . . . . . . . . . . . 203 Logical Structure of NFVI Domains . . . . . . . . . . . . . . . 204 Compute Domain . . . . . . . . . . . . . . . . . . . . . . 205 Hypervisor Domain . . . . . . . . . . . . . . . . . . . . . 208 Infrastructure Network Domain . . . . . . . . . . . . . . . . 209 8.2 Virtualized Network Functions . . . . . . . . . . . . . . . . . 213 VNF Interfaces . . . . . . . . . . . . . . . . . . . . . . . 213 VNFC to VNFC Communication . . . . . . . . . . . . . . . . 215 VNF Scaling . . . . . . . . . . . . . . . . . . . . . . . . 216 8.3 NFV Management and Orchestration . . . . . . . . . . . . . . 217 Virtualized Infrastructure Manager . . . . . . . . . . . . . . . 217 Virtual Network Function Manager . . . . . . . . . . . . . . . 218 NFV Orchestrator . . . . . . . . . . . . . . . . . . . . . . 219 Repositories . . . . . . . . . . . . . . . . . . . . . . . . 219 Element Management . . . . . . . . . . . . . . . . . . . . 220 OSS/BSS . . . . . . . . . . . . . . . . . . . . . . . . . 220 8.4 NFV Use Cases . . . . . . . . . . . . . . . . . . . . . . . 221 Architectural Use Cases . . . . . . . . . . . . . . . . . . . 222 Service-Oriented Use Cases . . . . . . . . . . . . . . . . . 223 8.5 SDN and NFV . . . . . . . . . . . . . . . . . . . . . . . . 225 8.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 228 8.7 References . . . . . . . . . . . . . . . . . . . . . . . . . 229 Chapter 9: Network Virtualization 230 9.1 Virtual LANs . . . . . . . . . . . . . . . . . . . . . . . . 231 The Use of Virtual LANs . . . . . . . . . . . . . . . . . . . 234 Defining VLANs . . . . . . . . . . . . . . . . . . . . . . . 235 Communicating VLAN Membership . . . . . . . . . . . . . . 236 IEEE 802.1Q VLAN Standard . . . . . . . . . . . . . . . . . 237 Nested VLANs . . . . . . . . . . . . . . . . . . . . . . . 239 9.2 OpenFlow VLAN Support . . . . . . . . . . . . . . . . . . . 240 9.3 Virtual Private Networks . . . . . . . . . . . . . . . . . . . 241 IPsec VPNs . . . . . . . . . . . . . . . . . . . . . . . . 241 MPLS VPNs . . . . . . . . . . . . . . . . . . . . . . . . 243 9.4 Network Virtualization . . . . . . . . . . . . . . . . . . . . 247 A Simplified Example . . . . . . . . . . . . . . . . . . . . 248 Network Virtualization Architecture . . . . . . . . . . . . . . . 250 Benefits of Network Virtualization . . . . . . . . . . . . . . . 252 9.5 OpenDaylight's Virtual Tenant Network. . . . . . . . . . . . . 253 9.6 Software-Defined Infrastructure . . . . . . . . . . . . . . . . 257 Software-Defined Storage . . . . . . . . . . . . . . . . . . 259 SDI Architecture . . . . . . . . . . . . . . . . . . . . . . 261 9.7 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . 263 9.8 References . . . . . . . . . . . . . . . . . . . . . . . . . 263 PART IV DEFINING AND SUPPORTING USER NEEDS 265 Chapter 10: Quality of Service 266 10.1 Background . . . . . . . . . . . . . . . . . . . . . . . . 267 10.2 QoS Architectural Framework . . . . . . . . . . . . . . . . 268 Data Plane . . . . . . . . . . . . . . . . . . . . . . . . . 269 Control Plane . . . . . . . . . . . . . . . . . . . . . . . . 271 Management Plane . . . . . . . . . . . . . . . . . . . . . 272 10.3 Integrated Services Architecture . . . . . . . . . . . . . . . 273 ISA Approach . . . . . . . . . . . . . . . . . . . . . . . . 273 ISA Components . . . . . . . . . . . . . . . . . . . . . . 274 ISA Services . . . . . . . . . . . . . . . . . . . . . . . . 276 Queuing Discipline . . . . . . . . . . . . . . . . . . . . . 277 10.4 Differentiated Services . . . . . . . . . . . . . . . . . . . 279 Services . . . . . . . . . . . . . . . . . . . . . . . . . . 281 DiffServ Field . . . . . . . . . . . . . . . . . . . . . . . . 282 DiffServ Configuration and Operation . . . . . . . . . . . . . . 284 Per-Hop Behavior . . . . . . . . . . . . . . . . . . . . . . 286 Default Forwarding PHB . . . . . . . . . . . . . . . . . . . 287 10.5 Service Level Agreements . . . . . . . . . . . . . . . . . . 291 10.6 IP Performance Metrics . . . . . . . . . . . . . . . . . . . 293 10.7 OpenFlow QoS Support . . . . . . . . . . . . . . . . . . . 296 Queue Structures . . . . . . . . . . . . . . . . . . . . . . 296 Meters . . . . . . . . . . . . . . . . . . . . . . . . . . 297 10.8 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 299 10.9 References . . . . . . . . . . . . . . . . . . . . . . . . 299 Chapter 11: QoE: User Quality of Experience 300 11.1 Why QoE? . . . . . . . . . . . . . . . . . . . . . . . . 301 Online Video Content Delivery . . . . . . . . . . . . . . . . . 302 11.2 Service Failures Due to Inadequate QoE Considerations . . . . . 304 11.3 QoE-Related Standardization Projects . . . . . . . . . . . . . 304 11.4 Definition of Quality of Experience . . . . . . . . . . . . . . . 305 Definition of Quality . . . . . . . . . . . . . . . . . . . . . 306 Definition of Experience . . . . . . . . . . . . . . . . . . . 306 Quality Formation Process . . . . . . . . . . . . . . . . . . 307 Definition of Quality of Experience . . . . . . . . . . . . . . . 308 11.5 QoE Strategies in Practice . . . . . . . . . . . . . . . . . . 308 The QoE/QoS Layered Model . . . . . . . . . . . . . . . . . 308 Summarizing and Merging the QoE/QoS Layers . . . . . . . . . 310 11.6 Factors Influencing QoE . . . . . . . . . . . . . . . . . . . 311 11.7 Measurements of QoE . . . . . . . . . . . . . . . . . . . 312 Subjective Assessment . . . . . . . . . . . . . . . . . . . . 312 Objective Assessment . . . . . . . . . . . . . . . . . . . . 314 End-User Device Analytics . . . . . . . . . . . . . . . . . . 315 Summarizing the QoE Measurement Methods . . . . . . . . . . 316 11.8 Applications of QoE . . . . . . . . . . . . . . . . . . . . 317 11.9 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 319 11.10 References . . . . . . . . . . . . . . . . . . . . . . . . 320 Chapter 12: Network Design Implications of QoS and QoE 322 12.1 Classification of QoE/QoS Mapping Models . . . . . . . . . . 323 Black-Box Media-Based QoS/QoE Mapping Models . . . . . . . 323 Glass-Box Parameter-Based QoS/QoE Mapping Models . . . . . . 325 Gray-Box QoS/QoE Mapping Models . . . . . . . . . . . . . . 326 Tips for QoS/QoE Mapping Model Selection . . . . . . . . . . . 327 12.2 IP-Oriented Parameter-Based QoS/QoE Mapping Models . . . . . 327 Network Layer QoE/QoS Mapping Models for Video Services . . . . 328 Application Layer QoE/QoS Mapping Models for Video Services . . 328 12.3 Actionable QoE over IP-Based Networks . . . . . . . . . . . . 330 The System-Oriented Actionable QoE Solution . . . . . . . . . . 330 The Service-Oriented Actionable QoE Solution . . . . . . . . . . 331 12.4 QoE Versus QoS Service Monitoring . . . . . . . . . . . . . . 332 QoS Monitoring Solutions. . . . . . . . . . . . . . . . . . . 334 QoE Monitoring Solutions . . . . . . . . . . . . . . . . . . . 335 12.5 QoE-Based Network and Service Management . . . . . . . . . 341 QoE-Based Management of VoIP Calls . . . . . . . . . . . . . 341 QoE-Based Host-Centric Vertical Handover . . . . . . . . . . . 341 QoE-Based Network-Centric Vertical Handover . . . . . . . . . 342 12.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 344 12.7 References . . . . . . . . . . . . . . . . . . . . . . . . 344 PART V MODERN NETWORK ARCHITECTURE: CLOUDS AND FOG 347 Chapter 13: Cloud Computing 348 13.1 Basic Concepts . . . . . . . . . . . . . . . . . . . . . . 349 13.2 Cloud Services . . . . . . . . . . . . . . . . . . . . . . 351 Software as a Service . . . . . . . . . . . . . . . . . . . . 352 Platform as a Service . . . . . . . . . . . . . . . . . . . . 353 Infrastructure as a Service . . . . . . . . . . . . . . . . . . 354 Other Cloud Services . . . . . . . . . . . . . . . . . . . . 355 XaaS . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 13.3 Cloud Deployment Models . . . . . . . . . . . . . . . . . . 358 Public Cloud . . . . . . . . . . . . . . . . . . . . . . . . 359 Private Cloud . . . . . . . . . . . . . . . . . . . . . . . . 359 Community Cloud . . . . . . . . . . . . . . . . . . . . . . 360 Hybrid Cloud . . . . . . . . . . . . . . . . . . . . . . . . 360 13.4 Cloud Architecture . . . . . . . . . . . . . . . . . . . . . 361 NIST Cloud Computing Reference Architecture . . . . . . . . . . 361 ITU-T Cloud Computing Reference Architecture . . . . . . . . . 365 13.5 SDN and NFV . . . . . . . . . . . . . . . . . . . . . . . 368 Service Provider Perspective . . . . . . . . . . . . . . . . . 369 Private Cloud Perspective . . . . . . . . . . . . . . . . . . 369 ITU-T Cloud Computing Functional Reference Architecture . . . . . 369 13.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 371 Chapter 14: The Internet of Things: Components 372 14.1 The IoT Era Begins . . . . . . . . . . . . . . . . . . . . . 373 14.2 The Scope of the Internet of Things . . . . . . . . . . . . . . 374 14.3 Components of IoT-Enabled Things . . . . . . . . . . . . . . 377 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 377 Actuators . . . . . . . . . . . . . . . . . . . . . . . . . 380 Microcontrollers . . . . . . . . . . . . . . . . . . . . . . . 381 Transceivers . . . . . . . . . . . . . . . . . . . . . . . . 386 RFID . . . . . . . . . . . . . . . . . . . . . . . . . . . 387 14.4 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 393 14.5 References . . . . . . . . . . . . . . . . . . . . . . . . 393 Chapter 15: The Internet of Things: Architecture and Implementation 394 15.1 IoT Architecture . . . . . . . . . . . . . . . . . . . . . . 395 ITU-T IoT Reference Model . . . . . . . . . . . . . . . . . . 395 IoT World Forum Reference Model . . . . . . . . . . . . . . . 401 15.2 IoT Implementation . . . . . . . . . . . . . . . . . . . . . 409 IoTivity . . . . . . . . . . . . . . . . . . . . . . . . . . 409 Cisco IoT System . . . . . . . . . . . . . . . . . . . . . . 420 ioBridge . . . . . . . . . . . . . . . . . . . . . . . . . . 427 15.3 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 431 15.4 References . . . . . . . . . . . . . . . . . . . . . . . . 431 PART VI RELATED TOPICS 433 Chapter 16: Security 434 16.1 Security Requirements . . . . . . . . . . . . . . . . . . . 435 16.2 SDN Security . . . . . . . . . . . . . . . . . . . . . . . 436 Threats to SDN . . . . . . . . . . . . . . . . . . . . . . . 436 Software-Defined Security . . . . . . . . . . . . . . . . . . 440 16.3 NFV Security . . . . . . . . . . . . . . . . . . . . . . . 441 Attack Surfaces . . . . . . . . . . . . . . . . . . . . . . . 441 ETSI Security Perspective . . . . . . . . . . . . . . . . . . 444 Security Techniques . . . . . . . . . . . . . . . . . . . . . 446 16.4 Cloud Security . . . . . . . . . . . . . . . . . . . . . . . 446 Security Issues and Concerns . . . . . . . . . . . . . . . . . 449 Cloud Security Risks and Countermeasures . . . . . . . . . . . 450 Data Protection in the Cloud . . . . . . . . . . . . . . . . . 452 Cloud Security as a Service . . . . . . . . . . . . . . . . . . 453 Addressing Cloud Computer Security Concerns . . . . . . . . . 456 16.5 IoT Security . . . . . . . . . . . . . . . . . . . . . . . . 458 The Patching Vulnerability . . . . . . . . . . . . . . . . . . 459 IoT Security and Privacy Requirements Defined by ITU-T . . . . . 459 An IoT Security Framework . . . . . . . . . . . . . . . . . . 462 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . 465 16.6 Key Terms . . . . . . . . . . . . . . . . . . . . . . . . 465 16.7 References . . . . . . . . . . . . . . . . . . . . . . . . 465 Chapter 17: The Impact of the New Networking on IT Careers 466 17.1 The Changing Role of Network Professionals . . . . . . . . . . 467 Changing Responsibilities . . . . . . . . . . . . . . . . . . 467 Impact on Job Positions . . . . . . . . . . . . . . . . . . . 469 Bottom Line . . . . . . . . . . . . . . . . . . . . . . . . 470 17.2 DevOps . . . . . . . . . . . . . . . . . . . . . . . . . 470 DevOps Fundamentals . . . . . . . . . . . . . . . . . . . . 471 The Demand for DevOps . . . . . . . . . . . . . . . . . . . 475 DevOps for Networking . . . . . . . . . . . . . . . . . . . 476 DevOps Network Offerings . . . . . . . . . . . . . . . . . . 478 Cisco DevNet . . . . . . . . . . . . . . . . . . . . . . . . 479 Conclusion on the Current State of DevOps . . . . . . . . . . . 479 17.3 Training and Certification . . . . . . . . . . . . . . . . . . 480 Certification Programs . . . . . . . . . . . . . . . . . . . . 480 IT Skills . . . . . . . . . . . . . . . . . . . . . . . . . . 488 17.4 Online Resources . . . . . . . . . . . . . . . . . . . . . 489 17.5 References . . . . . . . . . . . . . . . . . . . . . . . . 491 Appendix A: References 492 Glossary 498 9780134175393, TOC, 10/5/2015
기본정보
ISBN | 9780134175393 ( 0134175395 ) |
---|---|
발행(출시)일자 | 2015년 10월 29일 |
쪽수 | 560쪽 |
크기 |
178 * 229
* 28
mm
/ 862 g
|
총권수 | 1권 |
언어 | 영어 |
Klover
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