Introduction
CHAPTER 1: Network Technologies, Topologies, and Types
Wired and Wireless Network Topologies
Bus Topology
Ring Topology
Star Topology (Hub-and-Spoke)
Mesh Topology
Hybrid Topology
Bringing Wireless to a Topology
Infrastructure Wireless Topology
Ad Hoc Wireless Topology
Wireless Mesh Topology
Network Types and Characteristics
To Server or Not
LANs
WLANs
WANs
MANs
CANs
SANs
PANs
SDWANs
MPLS
mGRE
Network Links and Concepts
DSL Internet Access
Cable Broadband
The Public Switched Telephone Network
Leased Lines
T3 Lines
Metro-Optical
Satellite Internet Access
Termination Points
Demarc, Demarc Extension, and Smart Jacks
CSUs/DSUs
Verify Wiring Installation and Termination
Virtual Networking
What's Next?
CHAPTER 2: Models, Ports, Protocols, and Network Services
The OSI Networking Model
The OSI Seven-Layer Model
Physical Layer (Layer 1)
Data Link Layer (Layer 2)
Network Layer (Layer 3)
Transport Layer (Layer 4)
Session Layer (Layer 5)
Presentation Layer (Layer 6)
Application Layer (Layer 7)
OSI Model Summary
Comparing OSI to the Four-Layer TCP/IP Model
Identifying the OSI Layers at Which Various Network Components Operate
Data Encapsulation/Decapsulation and OSI
Ports and Protocols
Connection-Oriented Protocols Versus Connectionless Protocols
Internet Protocol
Transmission Control Protocol
How TCP Works
User Datagram Protocol
Internet Control Message Protocol
IPSec
Generic Routing Encapsulation
File Transfer Protocol
Secure Shell
Secure File Transfer Protocol
Telnet
Simple Mail Transfer Protocol
Domain Name System (DNS)
Dynamic Host Configuration Protocol (DHCP)
Trivial File Transfer Protocol
Hypertext Transfer Protocol
Network Time Protocol (NTP)
Post Office Protocol Version 3/Internet Message Access Protocol Version 4
Simple Network Management Protocol
Components of SNMP
SNMP Management Systems
SNMP Agents
Management Information Bases
SNMP Communities
SNMPv3
Lightweight Directory Access Protocol
Hypertext Transfer Protocol Secure
Server Message Block
Syslog
SMTP TLS
LDAPS
IMAP over SSL
POP3 over SSL
SQL, SQLnet, and MySQL
Remote Desktop Protocol
Session Initiation Protocol
Understanding Port Functions
Network Services
Domain Name Service (DNS)
The DNS Namespace
Types of DNS Entries
DNS Records
DNS in a Practical Implementation
Dynamic Host Configuration Protocol
The DHCP Process
DHCP and DNS Suffixes
DHCP Relays and IP Helpers
Network Time Protocol
What's Next?
CHAPTER 3: Addressing, Routing, and Switching
IP Addressing
IPv4
IP Address Classes
Subnet Mask Assignment
Subnetting
Identifying the Differences Between IPv4 Public and Private Networks
Private Address Ranges
Classless Interdomain Routing
Default Gateways
Virtual IP
IPv4 Address Types
Unicast Address
Broadcast Address
Multicast
IPv6 Addressing
Where Have All the IPv4 Addresses Gone?
Identifying IPv6 Addresses
IPv6 Address Types
Global Unicast Addresses
Link-Local Addresses
Site-Local Addresses
Neighbor Discovery
Comparing IPv4 and IPv6 Addressing
Assigning IP Addresses
Static Addressing
Dynamic Addressing
BOOT Protocol (BOOTP)
Automatic Private IP Addressing
Identifying MAC Addresses
NAT and PAT
NAT
PAT
SNAT
DNAT
Managing Routing and Switching
The Default Gateway
Routing Tables
Static Routing
Default Route
Switching Methods
Packet Switching
Circuit Switching
Comparing Switching Methods
Dynamic Routing
Distance-Vector Routing
Link-State Routing
Hybrid Routing Protocols
Network Traffic
Routing Metrics
Virtual Local-Area Networks
VLAN Membership
VLAN Segmentation
The Spanning Tree Protocol
Interface Configuration and Switch Management
MDI-X
Trunking
Port Mirroring
Port Authentication
Power over Ethernet (PoE and PoE+)
MAC Address Table
Switch Management
Managed and Unmanaged
Quality of Service
Traffic Shaping
Access Control Lists
ARP and RARP
What's Next?
CHAPTER 4: Network Implementations
Common Networking Devices
Firewall
IDS/IPS
Router
Switch
Hub and Switch Cabling
Multilayer Switch
Hub
Bridge
DSL and Cable Modems
Access Point
Media Converter
Voice Gateway
Repeater
Wireless LAN Controller
Load Balancer
Proxy Server
VPN Concentrators and Headends
Networked Devices
Networking Architecture
Three-Tiered Architecture
Core Layer
Distribution/Aggregation Layer
Access/Edge Layer
Software-Defined Networking
Application Layer
Control Layer
Infrastructure Layer
Management Plane
Spine and Leaf
Traffic Flows
Datacenter Location Types
Storage-Area Networks
iSCSI
Fibre Channel and FCoE
Network-Attached Storage
What's Next?
CHAPTER 5: Cabling Solutions and Issues
General Media Considerations
Broadband Versus Baseband Transmissions
Simplex, Half-Duplex, and Full-Duplex Modes
Data Transmission Rates
Types of Network Media
Twisted-Pair Cabling (Copper)
Coaxial Cables
Twinaxial Cables
Fiber-Optic Cables
Plenum Versus PVC Cables
Types of Media Connectors
BNC Connectors
RJ-11 Connectors
RJ-45 Connectors
F-Type Connectors and RG-59 and RG-6 Cables
Fiber Connectors
Transceivers
Media Couplers/Converters
TIA/EIA 568A and 568B Wiring Standards
Straight-Through Versus Crossover Cables
Rollover and Loopback Cables
Components of Wiring Distribution
Network Cross-Connects
Horizontal Cabling
Vertical Cables
Patch Panels
Fiber Distribution Panels
66 and 110 Blocks (T568A, T568B)
MDF and IDF Wiring Closets
Ethernet Copper and Fiber Standards
10BASE-T
100BASE-TX
1000BASE-T
10GBASE-T
40GBASE-T
1000BASE-LX and 1000BASE-SX
10GBASE-LR and 10GBASE-SR
Multiplexing Options
Troubleshooting Common Cable Connectivity Issues
Limitations, Considerations, and Issues
Throughput, Speed, and Distance
Cabling Specifications/Limitations
Cabling Considerations
Cabling Applications
Attenuation and dB Loss
Interference
Incorrect Pinout
Bad Ports
Open/Short
LED Status Indicators
Incorrect Transceivers
Duplexing Issues
TX/RX Reversed
Dirty Optical Cables
Common Tools
Cable Crimpers, Strippers, and Snips/Cutters
Punchdown Tools
Tone Generator
Loopback Adapter
OTDR
Multimeter
Cable Tester
Wire Map
Tap
Fusion Splicer
Spectrum Analyzer
Fiber Light Meter
What's Next?
CHAPTER 6: Wireless Solutions and Issues
Understanding Wireless Basics
Wireless Channels and Frequencies
Cellular Technology Access
Speed, Distance, and Bandwidth
Channel Bonding
MIMO/MU-MIMO/Directional/Omnidirectional
Antenna Ratings
Antenna Coverage
Establishing Communications Between Wireless Devices
Configuring the Wireless Connection
Troubleshooting Wireless Issues
Site Surveys
Factors Affecting Wireless Signals
Interference
Reflection, Refraction, and Absorption
Troubleshooting AP Coverage
What's Next?
CHAPTER 7: Cloud Computing Concepts and Options
Cloud Concepts
Service Models
Software as a Service
Platform as a Service
Infrastructure as a Service
Desktop as a Service
Deployment Models
Private Cloud
Public Cloud
Hybrid and Community Clouds
Infrastructure as Code
Connectivity Options
Multitenancy
Elasticity
Scalability
Security Implications
The Relationship Between Resources
What's Next?
CHAPTER 8: Network Operations
Organizational Documents and Policies
Wiring and Port Locations
Troubleshooting Using Wiring Schematics
Physical and Logical Network Diagrams
Baseline Configurations
Policies, Procedures, Configurations, and Regulations
Policies
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