72 lines
2.2 KiB
Python
72 lines
2.2 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 builtins import range
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from core import load_logging_config
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from core.emulator.coreemu import CoreEmu
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from core.emulator.emudata import IpPrefixes, NodeOptions
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from core.emulator.enumerations import EventTypes, NodeTypes
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from core.location.mobility import BasicRangeModel
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load_logging_config()
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def example(options):
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# ip generator for example
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prefixes = IpPrefixes("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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# must be in configuration state for nodes to start, when using "node_add" below
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session.set_state(EventTypes.CONFIGURATION_STATE)
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# create wlan network node
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wlan = session.add_node(_type=NodeTypes.WIRELESS_LAN)
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session.mobility.set_model(wlan, BasicRangeModel)
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# create nodes, must set a position for wlan basic range model
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node_options = NodeOptions()
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node_options.set_position(0, 0)
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for _ in range(options.nodes):
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node = session.add_node(node_options=node_options)
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interface = prefixes.create_interface(node)
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session.add_link(node.id, wlan.id, interface_one=interface)
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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_node(2)
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last_node = session.get_node(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 = prefixes.ip4_address(first_node)
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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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coreemu.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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