• Open terminal and type the following  

                                      sudo apt-get install netspeed

Right click on the free area of the upper panel and select "Add to Panel...". Add "System Monitor" and "Network Monitor". Right Click on System Monitor and select Preferences. Add the monitor resources that you want to monitor.

• You can also download it from Synaptic

Content Courtesy: http://www.ubuntuguide.org
Content License:http://www.gnu.org/copyleft/fdl.htm