66 lines
2 KiB
Python
66 lines
2 KiB
Python
#!/usr/bin/python
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#
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# run iperf to measure the effective throughput between two nodes when
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# n nodes are connected to a virtual wlan; run test for testsec
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# and repeat for minnodes <= n <= maxnodes with a step size of
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# nodestep
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import datetime
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import parser
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from core.future.coreemu import FutureIpv4Prefix, CoreEmu
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from core.mobility import BasicRangeModel
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from core.netns.nodes import WlanNode, CoreNode
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def example(options):
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# ip generator for example
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prefix = FutureIpv4Prefix("10.83.0.0/16")
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# create emulator instance for creating sessions and utility methods
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coreemu = CoreEmu()
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session = coreemu.create_session()
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# create wlan network node
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wlan_network = session.create_node(cls=WlanNode)
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coreemu.set_wireless_model(wlan_network, BasicRangeModel)
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# create nodes
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wireless_nodes = []
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for _ in xrange(options.nodes):
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node = session.create_node(cls=CoreNode)
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coreemu.add_interface(wlan_network, node, prefix)
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wireless_nodes.append(node)
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# link all created nodes with the wireless network
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coreemu.wireless_link_all(wlan_network, wireless_nodes)
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# instantiate session
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session.instantiate()
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# get nodes for example run
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first_node = session.get_object(2)
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last_node = session.get_object(options.nodes + 1)
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print "starting iperf server on node: %s" % first_node.name
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first_node.cmd(["iperf", "-s", "-D"])
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address = str(prefix.addr(first_node.objid))
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print "node %s connecting to %s" % (last_node.name, address)
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last_node.client.icmd(["iperf", "-t", str(options.time), "-c", address])
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first_node.cmd(["killall", "-9", "iperf"])
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# shutdown session
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session.shutdown()
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def main():
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options = parser.parse_options("wlan")
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start = datetime.datetime.now()
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print "running wlan example: nodes(%s) time(%s)" % (options.nodes, options.time)
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example(options)
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print "elapsed time: %s" % (datetime.datetime.now() - start)
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if __name__ == "__main__":
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main()
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