Appendix C. Troubleshooting TCP/IP

So far, you have learned about the functions and the working of protocols in the TCP/IP reference model. You know how the protocols interact with one another to transfer data. Although the protocols have been designed to address problems that might occur during data transmission, errors can occur for various reasons. These can include a faulty cable, improper functioning of a component, and incorrect configuration settings. The root cause of the problem needs to be identified and an appropriate solution needs to be applied to it.

The process of isolating a problem and applying corrective measures is known as troubleshooting. The problems must be solved so that network users experience minimum inconvenience. ...

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