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Debug Options

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This lab will review using the various debug commands and options to analyze the routers performance. You will find the debug command options useful in the remaining troubleshooting labs. | Lab 2.3.8 Debug Options SanJosel S0 0 S0 0 SanJose2 1 192.168.1.10 192.168.2.10 2 Objective This lab will review using the various debug commands and options to analyze the routers performance. You will find the debug command options useful in the remaining troubleshooting labs. This lab covers Debug basics and optional parameters The service timestamps debug uptime command Using access control lists to filter debug activity Console Terminal Using a Syslog Daemon Warning The debug command because of its heavy use of CPU cycles can be devastating to a production router s performance. It is possible that a command such as debug ip packet running during a moderate to heavy traffic period could literally consume all CPU cycles and effectively stop routing resulting in discarded frames. This discussion is included primarily as a tool to help you visualize how and why certain network processes occur. We will also look at options that can reduce the impact of the debug commands. Scenario You have been asked to consult on a small network and offer suggestions on how performance might be improved. After running other processes like the Protocol Inspector you have some questions about why the network is behaving as it is. 1-9 Semester 8 Internetwork Troubleshooting v1.0 - Lab 2.3.8 Copyright 2001 Cisco Systems Inc. Note The configuration file used for this lab will be used for other module 2 labs so please do not change any configuration settings. The configuration contains several components for testing purposes and is not intended to represent a good production configuration. If the lab is done in pairs each person can run the lab steps albeit each host may display slightly different results. It might be beneficial to coordinate your efforts and compare results. Step 1 Cable the lab as shown in the diagram. Load the configuration files Lab2-3-8-SanJose1Config.txt and Lab2-3-8-SanJose2Config.txt into the appropriate routers. Configure the workstations as follows same as the