Blah Blah from The TeaBreak Team.

Iperf is an essential tool for bandwidth calculation and monitoring. This tutorials will teach you the way to use the iperf command line to determine various parameters of link.
  1 – Local Loop back.
 

Link Capacity:        1.32 GBytes
Link Performance:    1.13 Gbits/sec
 
2-Client / Server

Link Capacity:        107 MBytes
Link Performance:    89.3 Mbits/sec
 
3- LAN client / Server

Link Capacity:        111 MBytes
Link […]