59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
import datetime
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import logging
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import parser
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from core.emulator.coreemu import CoreEmu
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from core.emulator.emudata import IpPrefixes
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from core.emulator.enumerations import EventTypes, NodeTypes
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def example(args):
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# ip generator for example
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prefixes = IpPrefixes(ip4_prefix="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 switch network node
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switch = session.add_node(_type=NodeTypes.SWITCH)
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# create nodes
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for _ in range(args.nodes):
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node = session.add_node()
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interface = prefixes.create_interface(node)
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session.add_link(node.id, switch.id, interface_one=interface)
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# instantiate session
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session.instantiate()
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# get nodes to run example
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first_node = session.get_node(2)
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last_node = session.get_node(args.nodes + 1)
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logging.info("starting iperf server on node: %s", first_node.name)
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first_node.cmd("iperf -s -D")
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first_node_address = prefixes.ip4_address(first_node)
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logging.info("node %s connecting to %s", last_node.name, first_node_address)
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output = last_node.cmd(f"iperf -t {args.time} -c {first_node_address}")
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logging.info(output)
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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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logging.basicConfig(level=logging.INFO)
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args = parser.parse("switch")
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start = datetime.datetime.now()
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logging.info("running switch example: nodes(%s) time(%s)", args.nodes, args.time)
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example(args)
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logging.info("elapsed time: %s", datetime.datetime.now() - start)
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if __name__ == "__main__":
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main()
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