ndt-users list created

[Jordi Bosch <>]

Hi All,
We are considering running NDT as a bandwidth test tool. Maybe 
Iperf/BWCTL would be better, anyone can tell me some public servers to 
see how it looks like?

I've observed looking at the 'network tools' that each NDT test sends 10 
MB of data in the S2C test, and about 1,3 MB in the C2S test.I've looked 
at the 'Bytes sent' and 'Bytes Received' counters under the network 
device, eth0 in this case.

From some documents i've understood that only some pairs of packets are 
sent, but almost the Tcpbw100.java seems to send 8192 byte buffers for 
10 seconds. I deduced that sending only some pairs of packet allows NDT 
overcome the TCP windows limits to get high bandwith. Please, anyone can 
tell where i'm wrong?

I'm concerned about TCP window parameter, wich in fact can limit the 
size of the pipe that can be measured.I would like to ask about the NDT 
ability to test up to 1 Gbps pipes: can NDT test 1 Gbps pipes despite of 
TCP window limits ?

Thanks in advance for your time, and of course thank for this great tool!
Regards.
Jordi.