ndt-users list created

["Jordi Bosch" <>]

Well i think i've found the cause.

It's related to the fact that this is a server without internet conection. I'm using this configuration because i'm evaluating the NDT software.When conected to internet and runnig the test from a remote client, the problem doesn't appear.

Simply, using a very fast conection ( like a local loop : 127.0.0.1 ), the applet tries to connect to the port before the port becomes available ( that is, a process started and listening ).

 

The solution is sleep one second the applet before trying to open the connection to port 3002. This way it works fine.

 

Regards.

 

I think this is not a real problem wich requires a change in the code, just for the archive purposes:

The code in Tcpbw100.java can bee modified in this way

....

/* now look for middleboxes (firewalls, NATs, and other boxes that

* muck with TCP's end-to-end priciples

*/

// results.append("Trying to open new connection to server for middlebox testing\n");

showStatus("Waiting for Middlebox port availability One second ...");

try {

Thread.currentThread().sleep(1000);

} catch (InterruptedException e) {};

showStatus("Tcpbw100 Middlebox test...");

try {

in2Socket = new Socket(host, inport);

....

 

----- Original Message -----

From:

To:

Sent: Friday, December 02, 2005 12:06 AM

Subject: Newest version than v3.1.4b in SourceForge ?

Hello,

I've setup an NDT server using the last kit found on http://e2epi.internet2.edu/ndt/download.html , v3.1.4b.

 

In fact it works, but when i load the Applet, the message 'Server failed while middlebox testing' appears after i click the START button.

When i click it again, appears a mesage indicating that i must wait until the current test finishes. In fact, after some seconds, the test results are printed.

I've used Fedora Core 4 patched successfully with web100 2.5.4 using the 2.6.12 kernel from kernel.org, userland 1.5

Anyone knows if this behaviour is version related to the kernel or userland libraries ?

 

Looking at SourceForge, i've found that the Applet version is newest that the one found in ndt-3-1-4b.tar.gz file. Wich is the last version?

 

Thanks in advance for your replies.