“Do I Know This Already?” Quiz–Cisco Troubleshooting
Take the quiz (either here or use the PTP software) if you want to use the score to help you decide how much time to spend on this chapter. Appendix A, “Answers to the ‘Do I Know This Already?’ Quizzes,” …
Configuring Routing–Cisco Configuring a Network
Whenever there is a reachability problem, the best place to start looking for the problem is the routing table, which you can see by using show ip route. Figure 23-8 illustrates the parts of show ip route’s output. Figure 23-8 …
Foundation Topics–Cisco Configuring a Network
This chapter works through the process of configuring the network shown in Figure 23-1. Figure 23-1 Sample Network Note Previous chapters considered configuring hosts. Because of this, A, B, and C will largely be ignored from a configuration standpoint throughout …
The Post-Mortem–Cisco Troubleshooting
Post-mortems are a time set aside to go over a network failure, the troubleshooting process, and the solution. Post-mortems should be loosely structured and answer just a few questions, including • What is the root cause? Why are we sure …
Management Systems–Cisco Managing Networks
At some scale or level of complexity, all operators move from manually monitoring and managing their networks to using some form of network management system (NMS). Figure 21-9 illustrates the basic components of an NMS. Figure 21-9 Management System Components …