I couldn't view the webpage you've given, so I don't know if it mesures the network usage of your computer or only the speed of the connection of your computer and their server (which can be a good approximation of your internet access bandwidth if you're not downloading anything the same time you're running the speedcheck).

Netstat is not relevant here. I meant to say ifconfig from the start, but I was tired and said netstat instead in the last paragraph.

About ifconfig. On my system it prints a line like this about the eth0 interface. 

          RX bytes:466213 (455.2 Kb)  TX bytes:40233 (39.2 Kb)

[download]
(I've just started my machine so that's why the numbers are so small.) I remember that some older versions of ifconfig does not print this info, probably because this feature was not available in older (2.2) kernels. The command corresponding to ifconfig in windows is ipconfig but I don't know whether it prints this info.

In reply to Re^3: How to monitor internet speed in real time? by ambrus
in thread How to monitor internet speed in real time? by rockmountain

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