CCNA Exploration 4.0. Accessing the WAN.

Chapter 8: Network Troubleshooting

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8.1 Establishing the Network Performance Baseline

8.1.1 Documenting Your Network

8.1.2 Documenting Your Network

8.1.3 Why is Establishing a Network Baseline Important?

8.1.4 Steps for Establishing a Network Baseline

8.2 Troubleshooting Methodologies and Tools

8.2.1 A General Approach to Troubleshooting

8.2.2 Using Layered Models for Troubleshooting

8.2.3 General Troubleshooting Procedures

8.2.4 Troubleshooting Methods

8.2.5 Gathering Symptoms

8.2.6 Troubleshooting Tools

8.3 Common WAN Implementation Issues

8.3.1 WAN Communications

8.3.2 Steps in WAN Design

8.3.3 WAN Traffic Considerations

8.3.4 WAN Topology Considerations

8.3.5 WAN Bandwidth Considerations

8.3.6 Common WAN Implementation Issues

8.3.7 Case Study: WAN Troubleshooting from an ISP's Perspective

8.4 Network Troubleshooting

8.4.1 Interpreting Network Diagrams to Identify Problems

8.4.2 Physical Layer Troubleshooting

8.4.3 Data Link Layer Troubleshooting

8.4.4 Network Layer Troubleshooting

8.4.5 Transport Layer Troubleshooting

8.4.6 Application Layer Troubleshooting

8.5 Chapter Labs

8.5.1 Troubleshooting Enterprise Networks 1

8.5.2 Troubleshooting Enterprise Networks 2

8.5.3 Troubleshooting Enterprise Networks 3

8.6 Chapter Summary

8.6.1 Chapter Summary

8.7 Chapter Quiz

8.7.1 Chapter Quiz

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