Getting information through TCP stream graphs – the Throughput Graph window
The Throughput Graph window of the TCP stream graphs enables us to look at the throughput of a connection and check for instabilities.
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, perform the following steps:
Click on a packet in the stream you want to monitor.
From the Statistics menu, navigate to TCP StreamGraph | Throughput Graph. The following window will open up:
In the graph, we see that the throughput is not stable and varies between around 20,000 bytes/sec to 1000 bytes/sec. This can be due to an unstable file transfer (which is the case in this FTP download over the HSUPA cellular connection), or just an application that...