gistfile1.py

    # se envian paquetes del nodo 3 al 0
    onoff.SetConstantRate (ns.network.DataRate ("100kb/s"))
    onoff.SetAttribute("Remote", 
                       ns.network.AddressValue(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.1.1.1"), port)))
    app = onoff.Install(ns.network.NodeContainer(terminals.Get(3)))
    app.Start(ns.core.Seconds(1.1))
    app = sink.Install(ns.network.NodeContainer(terminals.Get(0)))
    app.Start(ns.core.Seconds(2.0))

    #se envian paquetes del nodo 2 al 4
    onoff.SetConstantRate (ns.network.DataRate ("300kb/s"))
    onoff.SetAttribute("Remote", 
                       ns.network.AddressValue(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.1.1.6"), port)))
    app = onoff.Install(ns.network.NodeContainer(terminals.Get(2)))
    app.Start(ns.core.Seconds(1.1))
    app = sink.Install(ns.network.NodeContainer(terminals.Get(4)))
    app.Start(ns.core.Seconds(0.0))

    #se envian paquetes del nodo 1 al 2
    onoff.SetConstantRate (ns.network.DataRate ("160kb/s"))
    onoff.SetAttribute("Remote", 
                       ns.network.AddressValue(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.1.1.3"), port)))
    app = onoff.Install(ns.network.NodeContainer(terminals.Get(1)))
    app.Start(ns.core.Seconds(1.1))
    app = sink.Install(ns.network.NodeContainer(terminals.Get(2)))
    app.Start(ns.core.Seconds(0.0))
    csma.EnablePcapAll("csma-bridge", False)

    #se envian paquetes del nodo 3 al 2
    onoff.SetConstantRate (ns.network.DataRate ("800kb/s"))
    onoff.SetAttribute("Remote", 
                       ns.network.AddressValue(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.1.1.3"), port)))
    app = onoff.Install(ns.network.NodeContainer(terminals.Get(3)))
    app.Start(ns.core.Seconds(1.1))
    app = sink.Install(ns.network.NodeContainer(terminals.Get(2)))
    app.Start(ns.core.Seconds(0.0))
    csma.EnablePcapAll("csma-bridge", False)

    #se envian paquetes del 4 al 2
    onoff.SetAttribute("Remote", 
                       ns.network.AddressValue(ns.network.InetSocketAddress(ns.network.Ipv4Address("10.1.1.5"), port)))
    app = onoff.Install(ns.network.NodeContainer(terminals.Get(4)))
    app.Start(ns.core.Seconds(1.1))
    app = sink.Install(ns.network.NodeContainer(terminals.Get(2)))
    app.Start(ns.core.Seconds(0.0))