Filesharing Application crashes

[dbn]

I used the FS32Chord.xml config file for testing the filesharing
application. After some time the simulation crashes with the following
ouput:
2011-12-03 18:29:38,113 ERROR [Simulator – 198]- Simulation finished
with the error = null
2011-12-03 18:29:38,113 INFO [Simulator – 203]- Realtime Duration of
experiment (m:s) 0:11
2011-12-03 18:29:38,113 INFO [Simulator – 205]- Simulated time is
2:1:13:551 (H:m:s:ms)
java.lang.IllegalArgumentException: Transport protocol TCP not
supported by this NetLayer implementation.
at
de.tud.kom.p2psim.impl.network.modular.ModularNetLayer.send(ModularNetLayer.java:
208)
at
de.tud.kom.p2psim.impl.transport.DefaultTransLayer.sendTransportMsg(DefaultTransLayer.java:
253)
at
de.tud.kom.p2psim.impl.transport.DefaultTransLayer.sendReply(DefaultTransLayer.java:
261)
at
de.tud.kom.p2psim.impl.overlay.dht.chord.chord.components.ChordMessageHandler.messageArrived(ChordMessageHandler.java:
324)at
de.tud.kom.p2psim.impl.transport.DefaultTransLayer.receive(DefaultTransLayer.java:
165)
at
de.tud.kom.p2psim.impl.transport.DefaultTransLayer.messageArrived(DefaultTransLayer.java:
133)
at de.tud.kom.p2psim.impl.network.modular.ModularNetLayer
$ReceiveContextImpl.arrive(ModularNetLayer.java:311)
at
de.tud.kom.p2psim.impl.network.modular.st.trafCtrl.InfiniteTrafficQueue
$2.eventOccurred(InfiniteTrafficQueue.java:140)
at
de.tud.kom.p2psim.impl.simengine.Scheduler.processNextEvent(Scheduler.java:
233)
at de.tud.kom.p2psim.impl.simengine.Scheduler.start(Scheduler.java:
156)
at de.tud.kom.p2psim.impl.simengine.Simulator.start(Simulator.java:
174)
at
de.tud.kom.p2psim.impl.util.guirunner.impl.SimulationThread.run(SimulationThread.java:
68)

I used the newest version of the simulator and did not alter any file.
Has anyone a idea why this happens?

[Matthias Feldotto]

As you can see in the error message “Transport protocol TCP not supported by this NetLayer implementation.”

All these configurations for the filesharing application (in the folder application-filesharing2) support two different Netlayers: ModularNetLayer and GnpNetLayer. The modular network Layer is set as default one, but you can switch it with the variable. Unfortunately, this version of the modular layer is not compatible with TCP wihch is used by the application.

The easiest way to run these configuration is the use of the GNP network layer. You only have to change the variable NetLayer in the GUIRunner (where you choose the configuration file) from “Mod” to “GNP” and then all simulations should run without errors.

[Author]

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