Test network performance with nuttcp

Installation

wget http://www.lcp.nrl.navy.mil/nuttcp/stable/rpm/nuttcp-5.3.1-1.i386.rpm
rpm -i nuttcp-5.3.1-1.i386.rpm

Run as server on target machine

nuttcp -S

Make sure tcp ports 5000 and 5001 are opened.

Test target

Basic without bandwidth limitation;

nuttcp -i1 hostname

With 40Mpbs bandwidth limitation;

nuttcp -i1 -Ri40m hostname

Output results like this;

    4.8125 MB /   1.00 sec =   40.3421 Mbps
    4.6487 MB /   1.00 sec =   38.9322 Mbps
    4.7597 MB /   1.00 sec =   39.8966 Mbps
    4.9041 MB /   1.00 sec =   41.0982 Mbps
    4.6250 MB /   1.00 sec =   38.7668 Mbps
    4.7500 MB /   1.00 sec =   39.8180 Mbps
    4.8710 MB /   1.00 sec =   40.8293 Mbps
    4.8165 MB /   1.00 sec =   40.3687 Mbps
    4.5599 MB /   1.00 sec =   38.2229 Mbps
    4.8151 MB /   1.00 sec =   40.3563 Mbps

   47.6250 MB /  10.14 sec =   39.4143 Mbps 100 %TX 8 %RX

More info

http://www.wcisd.hpc.mil/nuttcp/Nuttcp-HOWTO.html