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Practical Packet Analysis, 2nd Edition by Chris Sanders

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Network Baselining

When all else fails, your network baseline can be one of the most crucial pieces of data you have when troubleshooting slowness on the network. For our purposes, a network baseline consists of a sample of traffic from various points on the network that includes a large chunk of what we would consider “normal” network traffic. The goal of the network baseline is to serve as a basis of comparison when the network or devices on it are not acting correctly.

For example, consider a scenario in which several clients on the network complain of slowness when logging in to a local web application server. If you were to capture this traffic and compare it to a network baseline, you might find that the web server is responding normally ...

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