- Cover
- Title Page
- Copyright Page
- Brief Contents
- Contents
- Dedication
- Preface
- Acknowledgments
- About the Authors
- CHAPTER 1 Evolution of Communication Technologies
- Today’s Hyperconnected World
- From Analog to Digital to IP
- Internet and IP Connectivity Are Pervasive
- How Unified Communications Connect People and Businesses
- How Communications Have Evolved
- Snail Mail
- Store-and-Forward Messages
- Real-Time Communication
- Social Media
- The Web’s Impact on Business
- E-commerce Business Models
- Solving E-commerce Business Challenges
- The Internet of Things’ Impact on Business
- The Cloud’s Impact on Business
- Virtualization
- Types of Cloud Services and Delivery Models
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 1 ASSESSMENT
- CHAPTER 2 Solving Today’s Business Communication Challenges
- Introducing Organizational Communication Challenges
- Enterprise Challenges
- Government Challenges
- SMB/SOHO Challenges
- Solving Enterprise Business Communication Challenges
- Banking and Financial Services Challenges
- Healthcare and Patient Care Services Challenges
- K–12 and Higher Education Services Challenges
- Commercial Retail Products and Services Challenges
- Manufacturing Services Challenges
- Travel and Transportation Services Challenges
- Solving Government Business Communication Challenges
- Solving SMB Business Communication Challenges
- Solving SOHO Business Communication Challenges
- Transforming Communication Requirements into Network Solutions
- Defining Your Organization’s Networking Requirements
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 2 ASSESSMENT
- CHAPTER 3 Circuit-Switched, Packet-Switched, and IP-Based Communications
- Open Systems Interconnection Reference Model
- TCP/IP Reference Model
- Application Layer
- Transport Layer
- Internet Layer
- Network Access Layer
- TCP/IP Suite
- Circuit Switching Versus Packet Switching
- Circuit Switching
- Packet Switching
- IP-Based Communications
- Network Topology Overview
- Point-to-Point Networks
- Bus
- Ring
- Star
- Mesh
- Fully Connected Mesh
- Hybrid
- Internetworking
- Internetworking with Bridges
- Internetworking with Switches
- Internetworking with Routers
- Internetworking with a Bridge/Router
- Internetworking with a Gateway
- Switching Concepts
- Switch Functionality
- Switch Forwarding Methods
- Routing Concepts
- Network Layer Address
- Static Route
- Dynamic Route
- Resiliency and Redundancy
- Layer 2 Resiliency
- Layer 3 Resiliency
- Virtual Networking Components
- Network Storage Types
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 3 ASSESSMENT
- CHAPTER 4 The Physical and Data Link Layers
- Physical Layer and Data Link Layer
- Physical Layer: OSI Layer
- Data Link Layer: OSI Layer
- Ethernet and IEEE 802.3 Frame Formats
- Ethernet Evolution
- IEEE 802.3 Standards and Specifications
- Solving Business Challenges
- IEEE 802.3 CSMA/CD Standards
- How Multiple Nodes Share Network Media
- Internetworking LANs: Bridging Versus Routing
- Repeaters and Hubs: Layer 1 Forwarding
- Bridges and Switches: Layer 2 Forwarding
- Ethernet Network Design Fundamentals
- Edge Network: Workgroup LANs
- Edge Network: Use of PoE Switches
- Edge Network: Departmental LAN
- Building Backbone: Collapsed Backbones
- Campus Backbone: Collapsed Data Center Backbone
- Metropolitan Area Backbone: Metro Ethernet Backbone
- GigE and 10 GigE Specifications
- 25, 40, and 100 GigE: Server Farms and Backbone Trunking
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 4 ASSESSMENT
- CHAPTER 5 The Network and Transport Layers
- Network and Transport Layers
- Network Layer: OSI Layer
- Transport Layer: OSI Layer
- The Internet Protocol
- IP Addressing: IPv4 versus IPv6
- IPv4
- IPv6
- IPv4 to IPv6
- IP Communications
- Connectionless Versus Connection-Oriented Communications
- Scenario 1: Connection-Oriented Conversation
- Scenario 2: Connectionless Conversation
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 5 ASSESSMENT
- CHAPTER 6 The Session, Presentation, and Application Layers
- Session, Presentation, and Application Layers
- Session Layer: OSI Layer 5
- Presentation Layer: OSI Layer 6
- Application Layer: OSI Layer 7
- Application Architectures
- Architecture Types and Examples
- Features and Benefits of Each Architecture Type
- Aligning Architecture with Business Requirements
- Application Layer Ports and Sockets
- World Wide Web
- From the Internet to the Web: How the World Wide Web Works
- HTTP: The Web’s Workhorse
- Impact on Security
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 6 ASSESSMENT
- CHAPTER 7 Layer 2 Networking
- Layer 2 Networking Basics
- Layer 1 and Layer 2 Evolution
- What Layer 2 Networking Means
- Ethernet LAN Topologies
- Layer 2 Network Redundancy and Resiliency
- VLAN Tagging
- IEEE 802.3ad Link Aggregation
- Network Backbones
- Network Power
- Layer 2 Business Solutions
- SOHO Organization
- SMB Organization
- Enterprise Organization
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 7 ASSESSMENT
- CHAPTER 8 Layer 3 Networking
- Network Layer Basics
- Network Layer Protocols
- Router Protocols
- Convergence
- Load Balancing
- Traffic Flow
- Internetwork Routing Functions
- LAN-to-LAN Routing
- LAN-to-WAN Routing
- Routing Metrics and Protocols
- Exterior Versus Interior Routing Protocols
- Routing Information Protocol (RIP)
- RIP Version 2 (RIPv2)
- Open Shortest Path First Version 2 (OSPFv2)
- Intermediate System-to-Intermediate System (IS-IS)
- Interior Gateway Routing Protocol (IGRP)
- Enhanced Interior Gateway Routing Protocol (EIGRP)
- Border Gateway Protocol (BGP)
- Layer 3 Network Redundancy and Resiliency
- Configuring Resilience
- Routing Protocol Resilience
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 8 ASSESSMENT
- CHAPTER 9 Network Infrastructure Implementations
- Physical Infrastructures
- Hosting Infrastructures
- Foundational Network Services
- IP Address Management (IPAM)
- Dynamic Host Control Protocol (DHCP)
- Domain Name System (DNS)
- Network Time Protocol (NTP)
- Network Devices and Where to Position Them
- Asset Visibility
- Creating an IT Asset Inventory
- Access Controls
- Identification, Authentication, Authorization, and Accounting
- Remote Access Controls and Multifactor Authentication
- Network Access Controls
- Visibility
- Control
- Device Identification
- Advanced Networking Devices
- Advanced Switching Devices
- Layered Security Solutions
- Performance-Enhancing Devices
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 9 ASSESSMENT
- CHAPTER 10 Wireless Networks
- Supporting the Mobile Worker
- Wired Versus Wireless
- Evolution of Wireless LAN Networking
- IEEE 802.11 Family of Standards
- The IEEE 802.11 Legacy Standard
- The IEEE 802.11b WLAN Standard
- The IEEE 802.11a WLAN Standard
- The IEEE 802.11g WLAN Standard
- The IEEE 802.11n WLAN Standard
- The IEEE 802.11ac WLAN Standard
- The IEEE 802.11ax WLAN Standard
- WLAN Security
- Authentication and Access Control
- Security Threats to WLANs
- IEEE 802.1X Security
- Encryption and Data Privacy
- Security Protocols and Access Control
- Security Practices
- Unauthorized Access to Shared Resources
- WLAN Planning and Design
- RF Design Issues
- Capacity and Coverage
- Speed and Distance Requirements
- Channel Bandwidth
- Channel Bonding
- MIMO/MU-MIMO
- Unidirectional/Omnidirectional
- Performing a Site Survey
- Conducting the Site Tests
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 10 ASSESSMENT
- CHAPTER 11 Wide Area Networks
- WAN Business Drivers
- WANs and Service Providers
- WAN and SD-WAN Business Drivers
- Evolution of WAN Technologies
- WAN Technologies in the 1970s
- WAN Technologies in the 1980s
- WAN Technologies in the 1990s
- WAN Technologies in the 2000s
- WAN Technologies in the 2010s
- WAN Management and Requirements
- Fault Management Requirements
- Configuration Management Requirements
- Accounting Management Requirements
- Performance Management Requirements
- Security Management Requirements
- WAN Solutions for Different Scenarios
- Enterprise Business
- Small to Medium Business (SMB)
- Small Office/Home Office (SOHO)
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 11 ASSESSMENT
- CHAPTER 12 Network Operations and Management
- The Scope of Network Operations and Management
- IT and IT Security Policy Framework
- Policy and Procedure Best Practices
- Network Operations and Management
- Staffing and Resources
- Real-Time Availability
- Audit and Monitoring
- Collecting Data
- Reporting Information
- Configuration Change Management
- Change Control Board Membership
- Change Control Board Function
- Change Control Board Policies and Practices
- Capacity Planning and Readiness
- IT Asset Inventory
- Network Performance
- Service Providers
- Network Management
- Simple Network Management Protocol (SNMP)
- Management Information Bases (MIBs)
- SNMP Traps
- FCAPS: Fault Management
- FCAPS: Configuration Management
- FCAPS: Accounting Management
- FCAPS: Performance Management
- FCAPS: Security Management
- Network Security
- Physical Security
- Access Controls
- Wireless Security
- Common Network Attacks
- Network Device Hardening
- Network Mitigation Solutions
- Changing Attacks
- Blended Response
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 12 ASSESSMENT
- CHAPTER 13 Network Auditing, Monitoring, and Incident Response
- Security Auditing and Analysis
- Purpose of Audits
- Customer Confidence
- Auditing Benchmarks
- Security Monitoring
- Security Monitoring for Computer Systems
- Types of Log Information to Capture
- Responding to Security Incidents
- Incident Response Plan, Policies, Procedures, and Guidelines
- Incident Response Team
- Phases of an Incident and Response
- The Role of Business Continuity and Disaster Recovery Plans
- Recovering Systems
- Business Impact Analysis
- Risk Assessment
- Risk Management
- Planning for Disaster and Recovery
- Policies, Procedures, Priorities, and Practices
- Testing and Evaluation
- Preparation and Staging of Testing Procedures
- Frequency of Tests
- Analysis of Test Results
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 13 ASSESSMENT
- CHAPTER 14 Network Security
- Network Security Essentials
- What Is Confidentiality?
- What Is Integrity?
- What Is Availability?
- Network Security Scope
- Network Risks, Threats, and Vulnerabilities
- Conducting a Network Security Risk Assessment
- Layered Network Security Architectures
- Network Security Controls
- How to Implement Security Controls
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 14 ASSESSMENT
- CHAPTER 15 Network Troubleshooting
- Network Operations Center
- Network Troubleshooting and Ticketing
- NOC and IT Service Desk Structure
- Network Troubleshooting Approach
- Network Troubleshooting Tools
- Physical Layer Tools
- Network Performance Monitoring Tools
- Network Traffic Tools
- Network Connectivity Tools
- Network Scanning and Discovery Tools
- Vulnerability Assessment Tools
- Protocol Analyzer Tools
- Network Troubleshooting Using Protocol Analysis
- How Protocols Behave
- Network Troubleshooting Scenarios
- Names Not Resolving
- Incorrect Gateway Definition
- Incorrect Netmask
- Duplicate IP Address
- Duplicate MAC Addresses
- Expired IP Address
- Rogue DHCP Server
- Untrusted SSL Certificate
- Incorrect Time
- Exhausted DHCP Scope
- Blocked TCP/UDP Ports
- Incorrect Host-Based Firewall Settings
- Incorrect ACL Settings
- Unresponsive Service
- CHAPTER SUMMARY
- KEY CONCEPTS AND TERMS
- CHAPTER 15 ASSESSMENT
- APPENDIX A Answer Key
- APPENDIX B IP Addressing Primer
- APPENDIX C Structured Wiring System Primer
- APPENDIX D Sample Security Policies and Templates
- APPENDIX E Standard Acronyms
- Glossary of Key Terms
- References
- Index
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Brief Contents
PART I Evolution of Communications
CHAPTER 1 Evolution of Communication Technologies
CHAPTER 2 Solving Today’s Business Communication Challenges
PART II Fundamentals of Wired and Wireless Networks
CHAPTER 3 Circuit-Switched, Packet-Switched, and IP-Based Communications
CHAPTER 4 The Physical and Data Link Layers
CHAPTER 5 The Network and Transport Layers
CHAPTER 6 The Session, Presentation, and Application Layers
CHAPTER 9 Network Infrastructure Implementations
PART III Network Management and Security
CHAPTER 12 Network Operations and Management
CHAPTER 13 Network Auditing, Monitoring, and Incident Response
CHAPTER 15 Network Troubleshooting
APPENDIX B IP Addressing Primer
APPENDIX C Structured Wiring System Primer
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