Getting information through TCP stream graphs – throughput window

The throughput windows of the TCP stream graphs enable us to look at the throughput of a connection. With this graph, we can also check for instabilities, depending on the application.

Getting ready

Open an existing capture, or start a new capture. Click on a specific packet in the capture file. Even though you can use this feature on a running capture, it is not meant for online statistics, so it is recommended that you start a capture, stop it, and then use this tool.

How to do it...

To view TCP stream graph statistics, go through the following steps:

1. Click on a packet on the stream you want to monitor.
2. From the Statistics menu, choose TCP Stream Graph | Throughput Graph.

3. The following window will be opened:

Here, we can see the example CAP_1674_06_14, stream 0. In the graph, we can see the following:

• The TCP connection throughput. We see here that it is roughly around 700-800 kilobits/second.
• The TCP segment length. This is the TCP...