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| Introduction | |
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| Networking Fundamentals How Computers Communicate | |
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| The OSI Model | |
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| Open Versus Proprietary Systems | |
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| Seven Layers | |
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| At-a-Glance: OSI Model | |
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| Internet Infrastructure: How It All Connects TCP/IP and IP Addressing | |
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| Computers Speaking the Same Language | |
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| What Is an Address? | |
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| Dynamically Allocated IP Addresses | |
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| Domain Names and Relationship to IP Addresses | |
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| Matching Domain Names to IP Addresses | |
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| At-a-Glance: TCP/IP | |
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| At-a-Glance: IP Addressing | |
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| At-a-Glance: IPv6 | |
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| NAT and PAT Internet Applications | |
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| The Internet and Its Applications | |
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| E-Mail | |
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| Web Browsing | |
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| E-Mail | |
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| Peer-to-Peer Sharing | |
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| Networking Infrastructure Ethernet | |
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| History of Ethernet | |
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| What Is Ethernet? | |
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| Evolution of Ethernet | |
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| At-a-Glance: Ethernet | |
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| Reducing Collisions on Ethernet LAN Switching | |
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| Fast Computers Need Faster Networks | |
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| Switching Basics: It s a Bridge | |
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| Switching Ethernets | |
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| Switches Take Over the World | |
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| At-a-Glance: Switching Spanning Tree | |
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| Network Loops | |
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| Sometimes, the Earth Is Flat | |
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| Preventing Network Loops | |
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| Spanning-Tree Fundamentals | |
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| At-a-Glance: Spanning Tree Routing | |
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| Routers | |
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| Routers Talk Among Themselves to Find Routes | |
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| Routers Route Packets | |
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| Routers Bridge and Switches Route | |
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| At-a-Glance: Routing | |
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| Routing and Switching | |
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| Network Design Campus Networks and Hierarchical Design | |
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| Building Networks for Ease of Use | |
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| At-a-Glance: Hierarchical Campus Design WAN Network Design | |
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| Moving Traffic Across the Street and the World | |
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| WAN Services | |
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| Integrated Services Digital Network | |
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| Frame Relay | |
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| ATM | |
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| MPLS | |
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| Broadband | |
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| Virtual Private Networks (VPN) | |
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| WAN Devices | |
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| At-a-Glance: Frame Relay | |
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| At-a-Glance: Asynchronous Transfer Mode (ATM) | |
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| Multiprotocol Label Switching (MPLS) Services | |
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| At-a-Glance: MPLS | |
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| MPLS Traffic Separation Broadband Technologies | |
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| Always-on Access | |
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| Broadband Technology Evolution | |
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| At-a-Glance: ISDN | |
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| At-a-Glance: Broadband Virtual Private Networks | |
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| Secure Networking Over the Internet | |
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| At-a-Glance: VPNs | |
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| Establishing a VPN Connection | |
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| At-a-Glance: Encryption | |
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| Client Authentication Optical Technologies | |
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| LANs, WANs and Now MANs | |
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| SONET, DWDM, and DPT | |
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| At-a-Glance: Metro Optical Branch Office Network Designs | |
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| Distributed Workforce | |
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| Distributed Office Challenges | |
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| At-a-Glance: Branch Office Design | |
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| Network Availability High Availability | |
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| At-a-Glance: High Availability Control Plane | |
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| When Good Networks Go Bad | |
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| Control Plane Protection | |
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| At-a-Glance: Control Plane Protection Quality of Service and Network Availability | |
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| Quality of Service as Network Protection? | |
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| Scavenger QoS | |
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| At-a-Glance: QoS for Network Resiliency Disaster Recovery | |
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| What Happens When the Network Stops Working | |
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| DR Planning | |
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| Resiliency and Backup Services | |
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| Preparedness Testing | |
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| At-a-Glance: Disaster Recovery: Business Continuance | |
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| Disaster Recovery Network Management | |
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| Keeping the Network Alive from Afar | |
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| Network Documentation: A Must-Have | |
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| Network-Management Protocols | |
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| Troubleshooting Tools | |
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| At-a-Glance: Network Management | |
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| Network Management | |
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| Securing the Network Network Security | |
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| Identity | |
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| Perimeter Security | |
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| Data Privacy | |
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| Security Monitoring | |
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| Policy Enforcement | |