There should be a "Connection Down" even logged, when the TCP connection to another node breaks (I think even if you start the daemon with -v you should see that, even if you do not set a higher debug level). Before that IBR-DTN has no way of knowing that TCP hangs, because TCP is designed to play over small outages. Depending on the TCP configuration of your operating system, and the performance of the TCP connection until then, the TCP timeout could be up to a few minutes.

Sebastian

Am 01.07.2013 um 10:26 schrieb Bruno Tavares bmpt@ua.pt:

Hello all

After running some tests I noticed that if I break the connection between two nodes for small amount of time (let's say 4 or 5 seconds) and then connect again the bundle is not fragmented and the tcp connection does not go down. It assumes that no connection break happen and continues to deliver the bundle.

I would like to know where I can find in the code where this small break of connection can be traced to make some debug.

Can anyone help me?

Best regards

Bruno Tavares

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