TAILIEUCHUNG - Troubleshooting TCP/IP – Show and Debug

There are many commands that are useful for troubleshooting TCP/IP. It is likely that you have used some of them in earlier classes. In this exercise you will look at some options, but we will save most commands for later chapters when you are looking at specific protocols. | Lab Troubleshooting TCP IP - Show and Debug S0 0 S0 0 1 2 Objective There are many commands that are useful for troubleshooting TCP IP. It is likely that you have used some of them in earlier classes. In this exercise you will look at some options but we will save most commands for later chapters when you are looking at specific protocols. This lab covers show commands debug commands 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. You are gathering information about the network. Note The configuration file used for this lab will be used for other module 4 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. 1-1 Semester 8 Internetwork Troubleshooting - Lab Copyright 2001 Cisco Systems Inc. If the lab is done in pairs each person can run the lab steps each may get 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 and Lab4-6-3- into the appropriate routers. Configure the workstations as follows same as the last lab Host 1 Host 2 IP Address IP Address Subnet mask Subnet mask Default Gateway .

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