Bandwith Calculation

I need to find bandwith between two server. I used iperf http://sourceforge.net/projects/iperf/ for this.

Just compile it run on one instance as server 

# iperf -s

On another server 

# /usr/local/bin/iperf -c ipaderssofinstance -f M

It generates outputs like below

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0-10.0 sec   830 MBytes  83.0 MBytes/sec