The following two articles can help you gain a stronger grasp of networking terms and concepts by using the OSI reference model as a guide: Understanding networks using the OSI reference model We’ll also discuss some common packet errors and their typical causes. Today, we’ll examine the anatomy of the three most common types of TCP/IP packets that travel across most wires (or glass, if you have fiber-optic cable). Administrators and engineers who are troubleshooting and analyzing networks sometimes need to break out a protocol analyzer to open up these packets and take a closer look at their contents to see what’s happening on the network. The packets then travel around the building or around the world and are unbundled by another node on the network. One of the key features of networking is the bundling of data into packets. This edition of the Packet Professor will get you started in examining TCP/IP packets. Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network.
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