119 lines
3.5 KiB
Python
119 lines
3.5 KiB
Python
"""
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ns3wifirandomwalk.py - This script demonstrates using CORE with the ns-3 Wifi
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model and random walk mobility.
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Patterned after the ns-3 example 'main-random-walk.cc'.
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How to run this:
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pushd ~/ns-allinone-3.16/ns-3.16
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sudo ./waf shell
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popd
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python -i ns3wifirandomwalk.py
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"""
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import optparse
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import sys
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import ns.core
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import ns.network
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from corens3.obj import Ns3Session
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from corens3.obj import Ns3WifiNet
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from core import logger
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from core.misc import ipaddress
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from core.misc import nodemaps
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from core.misc import nodeutils
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def add_to_server(session):
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"""
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Add this session to the server's list if this script is executed from
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the core-daemon server.
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"""
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global server
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try:
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server.add_session(session)
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return True
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except NameError:
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return False
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def wifisession(opt):
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"""
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Run a random walk wifi session.
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"""
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nodeutils.set_node_map(nodemaps.NODES)
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session = Ns3Session(1, persistent=True, duration=opt.duration)
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session.name = "ns3wifirandomwalk"
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session.filename = session.name + ".py"
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session.node_count = str(opt.numnodes + 1)
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add_to_server(session)
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wifi = session.add_object(cls=Ns3WifiNet, name="wlan1", rate="OfdmRate12Mbps")
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wifi.setposition(30, 30, 0)
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# for improved connectivity
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wifi.phy.Set("RxGain", ns.core.DoubleValue(18.0))
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prefix = ipaddress.Ipv4Prefix("10.0.0.0/16")
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services_str = "zebra|OSPFv3MDR|IPForward"
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nodes = []
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for i in xrange(1, opt.numnodes + 1):
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node = session.addnode(name="n%d" % i)
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node.newnetif(wifi, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)])
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nodes.append(node)
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session.services.addservicestonode(node, "router", services_str.split("|"))
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session.services.bootnodeservices(node)
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session.setuprandomwalkmobility(bounds=(1000.0, 750.0, 0))
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# PHY tracing
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# wifi.phy.EnableAsciiAll("ns3wifirandomwalk")
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# mobility tracing
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# session.setupmobilitytracing(wifi, "ns3wifirandomwalk.mob.tr",
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# nodes, verbose=True)
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session.startns3mobility(refresh_ms=150)
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# start simulation
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# session.instantiate() ?
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session.thread = session.run(vis=opt.viz)
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return session
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def main():
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"""
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Main routine when running from command-line.
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"""
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usagestr = "usage: %prog [-h] [options] [args]"
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parser = optparse.OptionParser(usage=usagestr)
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parser.set_defaults(numnodes=5, duration=600, verbose=False, viz=False)
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opt = {'numnodes': 5, 'duration': 600, 'verbose': False, 'viz': False}
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parser.add_option("-d", "--duration", dest="duration", type=int,
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help="number of seconds to run the simulation")
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parser.add_option("-n", "--numnodes", dest="numnodes", type=int,
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help="number of nodes")
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parser.add_option("-v", "--verbose", dest="verbose",
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action="store_true", help="be more verbose")
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parser.add_option("-V", "--visualize", dest="viz",
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action="store_true", help="enable PyViz ns-3 visualizer")
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def usage(msg=None, err=0):
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sys.stdout.write("\n")
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if msg:
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sys.stdout.write(msg + "\n\n")
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parser.print_help()
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sys.exit(err)
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opt, args = parser.parse_args()
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if opt.numnodes < 2:
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usage("invalid numnodes: %s" % opt.numnodes)
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for a in args:
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logger.warn("ignoring command line argument: '%s'", a)
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return wifisession(opt)
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if __name__ == "__main__" or __name__ == "__builtin__":
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session = main()
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logger.info("\nsession =%s", session)
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