Linux have more commands to monitoring bandwidth network loading. I often use "bwm-ng" to monitoring bandwidth network.
Follow this:
In your shell typing
1. apt-get install bwm-ng
2. bwm-ng
output should be follow this
bwm-ng v0.6 (probing every 0.500s), press 'h' for help
input: /proc/net/dev type: rate
- iface Rx Tx Total
==============================================================================
lo: 0.00 KB/s 0.00 KB/s 0.00 KB/s
ppp0: 0.00 KB/s 0.00 KB/s 0.00 KB/s
------------------------------------------------------------------------------
total: 0.00 KB/s 0.00 KB/s 0.00 KB/s
You can see traffic of network at realtime and you should read help by press 'h' on your keyboard.
This is first article about basic of linux. I hope this article as benefit for everybody. Bye.