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Networked AV Systems
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Networked AV Systems
by InfoComm International, Brad Grimes
Networked AV Systems
Cover
Networked AV Systems
Copyright Page
ABOUT THE AUTHOR
CONTENTS AT A GLANCE
CONTENTS
Foreword
Acknowledgments
PART I Getting Started
Chapter 1 What Is a Network?
Defining the Modern Network
Why Use a Network?
Network Classifications
Local Area Networks
Wide Area Networks
Private and Public WANs
Network Topologies
LAN Topologies
WAN Topologies
Wireless Topology
Network Architectures
Client-Server Architecture
Peer-to-Peer Architecture
Hybrid Architectures
Network Standards and Organizations
Chapter Review
Review Questions
Answers
Chapter 2 Layers of a Network
The OSI Model
Layers of the OSI Model
Physical Layer Transmission Media
Copper
Fiber Optics
Wireless Transmission
Common Transmission Media Problems
The Physical Layer and Networked AV Systems
Category (CAT) Cabling
Fiber-Optic Cabling
Long-Distance Communication Media
Data Link Layers and Networked AV
AV Data Link Protocols
Why Pro AV Needs Its Own Protocols
Chapter Review
Review Questions
Answers
Chapter 3 Bandwidth, Encoding, and Transport
Bandwidth
Baseband
Broadband
Encoding
Analog-to-Digital Encoding
Encoding Digital Signals for Transmission
Data Transmission
Simplex Communication
Duplex Communication
Chapter Review
Review Questions
Answers
Chapter 4 Network Building Blocks
Networking Components
Switches versus Hubs
Blended Machines
NIC Card and MAC Addresses
Network Operating Systems
Windows Servers
UNIX
Servers
Server Components
Web Servers and Services
File Servers
Data Servers
Email Servers
Network Time Protocol Server
External Storage Systems
Network-Attached Storage
Virtual Machines
Chapter Review
Review Questions
Answers
Chapter 5 Designing a Network for AV Systems
The Needs Analysis
The Network Needs Analysis
The Customer Is Not Always Right
Customer Readiness
Physical and Logical Design
Physical Topology
Planning Structured Cabling
Organizational Structure
Electrical and HVAC Considerations
Ensuring Security
Risk-Management Frameworks
Mitigation
Risk Analysis
Confidentiality, Integrity, and Availability
Ensuring Quality
Fault Tolerance
Quality of Service
Differentiated Service Categories
Implementation
Developing a Timeline
Training
Documentation
Chapter Review
Review Questions
Answers
PART II Networking for AV
Chapter 6 Ethernet, AVB, and More
What Is Ethernet?
Ethernet Speeds
10 Mbps Ethernet
100 Mbps Ethernet
Gigabit Ethernet
10 Gigabit Ethernet
40/100 Gigabit Ethernet
Audio Video Bridging (AVB)
Ethernet Requirements and Capabilities
AVB Topologies
EtherSound
Ethernet Requirements and Capabilities
EtherSound Topologies
EtherSound Latency
CobraNet
Ethernet Requirements and Capabilities
CobraNet Topologies and Latency
Dante
Ethernet Requirements and Capabilities
Dante Topologies and Latency
Q-Sys
Ethernet Requirements and Capabilities
Q-Sys Topologies and Latency
Chapter Review
Review Questions
Answers
Chapter 7 Network Addressing
The TCP/IP Stack
Address Resolution Protocol
Internet Protocol
Internet Control Messaging Protocol (ICMP)
IP Addresses
Decimal Numbering
Binary Numbering
Hexadecimal Numbering
IPv4 Addressing
IPv4 Netmask
Network Classes and Classless Interdomain Routing
IPv6 Addressing
IPv6 Netmasks
Types of IP Addresses
Global IP Addresses
Private Addresses
IPv4 Broadcast Addresses
IPv6 Multicast Addresses
Loopback Addresses
IP Address Assignment
Dynamic Host Configuration Protocol
Naming Services
Hosts Files
DNS
Chapter Review
Review Questions
Answers
Chapter 8 Subnetting: Networking AV Devices Together
Network Segments
Collision Domains
Broadcast Domains
Subnets
Virtual LANs
Requesting a VLAN
Subnetting
The Subnet Mask
Subnetting in Practice
Subnetting within an Organization
Calculating IPv4 Subnets: CIDR Notation
Calculating IPv4 Subnets: Dot-Decimal Notation
Calculating Hosts on IPv4 Subnets
Determining Subnets for IPv4 Addresses
IPv6 Subnetting
IPv6 Subnet Masks
Calculating Subnets for IPv6 Networks
Calculating Hosts on IPv6 Subnets
Chapter Review
Review Questions
Answers
Chapter 9 Protocols, Ports, and Documenting AV Devices and Protocols
Transport Layer Protocols
TCP Transport
UDP Transport
Routing Protocols
Ports
Identifying Protocols and Ports
Networked Device Inventory
Chapter Review
Review Questions
Answers
PART III Networked AV Applications
Chapter 10 Audio and Video Streaming
Streaming AV Needs Analysis
Streaming Tasks
Audience
Endpoints
Content Sources
Using Copyrighted Content
Cheat Sheet: Streaming Needs Analysis Questions
Streaming Media and the Networking Environment
Topology
Bandwidth: Matching Content to the Network
Streaming and Quality of Service
Latency
Network Policies and Restrictions
Cheat Sheet: Streaming Network Analysis Questions
Digital Content Bandwidth
Digital Audio Bandwidth
Digital Video Bandwidth
Bandwidth: Total Program Size
Image Quality vs. Available Bandwidth
Content Compression and Encoding
Codecs
Digital Audio Compression: MP3
Digital AV Compression
Choosing a Codec
High-Quality Streaming Video
Achieving High-Quality Compressed Images
Transcoding and Intelligent Streaming
Designing the Streaming System
Other Streaming Protocols
Unicast and Multicast
Implementing Multicast
Multicast Addressing
Video on Demand
Technologies for Delivery of Streaming Media
Encoders
Decoders
Streaming Servers
Caching Servers
Endpoint Interface
Chapter Review
Review Questions
Answers
Chapter 11 Digital Signage
Digital Signage Basics
Elements of Digital Signage
Digital Signage Control
Digital Signage Content
Content Configuration
The Digital Signage System
Digital Signage Players
Digital Signage Management
A Sample Digital Signage Network
Chapter Review
Review Questions
Answers
Chapter 12 Conferencing
Conferencing Needs Analysis
Audience
Endpoints
Content
Related Applications
Bandwidth Availability
Latency
Network Policies
Placing the Call
Conferencing Session Protocols
Gatekeepers and Servers
Routing Modes
Where to Install a Gatekeeper or SIP Server
Calling Multiple Endpoints
Multipoint Control Units
Conferencing Endpoints
Directory Integration
E.164 Addressing
Conferencing as a Stream
SIP and Unified Communications
Types of Conferencing Media
Digital Audio Standards: ITU
Conferencing and Bandwidth
Dedicated Network Links for Videoconferencing
Videoconferencing Latency
Mitigating Videoconferencing Bandwidth Requirements
Gatekeeper/SIP Server Business Rules
Calling Across Networks
H.323-SIP Internetworking
Gateways
Creating a Dial Plan
External Conferencing Strategies
Chapter Review
Review Questions
Answers
Chapter 13 Secure Remote Management and Monitoring
Introduction to the Remote Management and Monitoring System
Simple Network Management Protocol
Management Information Base and SNMP
Alternatives to SNMP Communication
Basic Reporting
System Configuration
Security and Troubleshooting
Planning a Remote Management and Monitoring System
Management System Architecture
Remote Management and Monitoring Access and Reporting Methods
Alarm Notification and Response Plan
Required Ports and Protocols
Scoping Remote Management and Monitoring System
Determine What Data to Monitor
Integrate Devices
Determine Data Retention and Redundancy Requirements
Implications of Cloud-Based Monitoring
Chapter Review
Review Questions
Answers
PART IV Ensuring Exceptional AV Experiences
Chapter 14 Service-Level Agreements
Get Acquainted with Service-Level Agreements
SLAs Set Expectations
Service Providers
Types of Service-Level Agreements
Discovering SLA Requirements
The AV Pro’s Role in an SLA
Components of a Service-Level Agreement
SLA Template
Areas of AV Focus in an SLA
Bandwidth
Quality of Service (QoS)
Latency
Packet Loss
Chapter Review
Review Questions
Answers
Chapter 15 Network Security
Vulnerabilities and Threats
Network Vulnerabilities
Social Vulnerabilities
Network Threats
Common Network Risks
Denial of Service
Masquerade Attacks
Malware
Security Tools
Firewalls
Application Layer Gateways and Session Border Controllers
Third-Party Security Tools
User Authentication
Network Access Control
User Authentication Protocols
Access Control List
Secure Transmission
Secure Sockets Layer and Transport Layer Security
Secure Shell and Secure Copy Protocol
Virtual Private Networking
Wireless Security
Weak Wireless Security Measures
Wireless Security Protocols
Chapter Review
Review Questions
Answers
Chapter 16 Troubleshooting Networked AV Systems
Troubleshooting Methodology
Symptom Recognition and Elaboration
Listing and Localizing Faulty Functions
Failure Analysis
Network Infrastructure Troubleshooting Tools
Network Cable Tester
Tone Generator
Optical Time-Domain Reflectometer
Wireless Network Tester/Analyzer
NIC Loopback Tester
Network Protocol Analyzer
Troubleshooting with TCP/IP Utilities
Ping
Traceroute
Netstat
Ipconfig and Ifconfig
Address Resolution Protocol Command Tool
Name Server Lookup
Troubleshooting Windows NT and UNIX-Based Operating Systems
Network Maintenance
Maintaining System Software
Maintaining System Hardware
Chapter Review
Review Questions
Answers
Appendix Networked AV Systems Project
Project Expectations and Requirements
Project Assumptions
Networked Device Inventory/Ports and Protocols
Network Topology/Addressing/Subnetting
Streaming Bandwidth
Digital Signage Strategy
Security Requirements
Videoconferencing/Firewall Strategy
Secure Remote Management and Monitoring Requirements
Service-Level Agreements
Glossary
Index
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