67 lines
2 KiB
Python
67 lines
2 KiB
Python
#!/usr/bin/python
|
|
#
|
|
# run iperf to measure the effective throughput between two nodes when
|
|
# n nodes are connected to a virtual wlan; run test for testsec
|
|
# and repeat for minnodes <= n <= maxnodes with a step size of
|
|
# nodestep
|
|
|
|
import datetime
|
|
|
|
import parser
|
|
from core import load_logging_config
|
|
from core.emulator.coreemu import CoreEmu
|
|
from core.emulator.emudata import IpPrefixes
|
|
from core.enumerations import NodeTypes, EventTypes
|
|
|
|
load_logging_config()
|
|
|
|
|
|
def example(options):
|
|
# ip generator for example
|
|
prefixes = IpPrefixes(ip4_prefix="10.83.0.0/16")
|
|
|
|
# create emulator instance for creating sessions and utility methods
|
|
coreemu = CoreEmu()
|
|
session = coreemu.create_session()
|
|
|
|
# must be in configuration state for nodes to start, when using "node_add" below
|
|
session.set_state(EventTypes.CONFIGURATION_STATE)
|
|
|
|
# create switch network node
|
|
switch = session.add_node(_type=NodeTypes.SWITCH)
|
|
|
|
# create nodes
|
|
for _ in xrange(options.nodes):
|
|
node = session.add_node()
|
|
interface = prefixes.create_interface(node)
|
|
session.add_link(node.objid, switch.objid, interface_one=interface)
|
|
|
|
# instantiate session
|
|
session.instantiate()
|
|
|
|
# get nodes to run example
|
|
first_node = session.get_object(2)
|
|
last_node = session.get_object(options.nodes + 1)
|
|
|
|
print "starting iperf server on node: %s" % first_node.name
|
|
first_node.cmd(["iperf", "-s", "-D"])
|
|
first_node_address = prefixes.ip4_address(first_node)
|
|
print "node %s connecting to %s" % (last_node.name, first_node_address)
|
|
last_node.client.icmd(["iperf", "-t", str(options.time), "-c", first_node_address])
|
|
first_node.cmd(["killall", "-9", "iperf"])
|
|
|
|
# shutdown session
|
|
coreemu.shutdown()
|
|
|
|
|
|
def main():
|
|
options = parser.parse_options("switch")
|
|
|
|
start = datetime.datetime.now()
|
|
print "running switch example: nodes(%s) time(%s)" % (options.nodes, options.time)
|
|
example(options)
|
|
print "elapsed time: %s" % (datetime.datetime.now() - start)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|