def ltesession(opt):
"""
Run a test LTE session.
"""
nodeutils.set_node_map(nodemaps.NODES)
session = Ns3Session(1, persistent=True, duration=opt.duration)
lte = session.create_node(cls=Ns3LteNet, name="wlan1")
lte.setsubchannels(range(25), range(50, 100))
if opt.verbose:
ascii_helper = ns.network.AsciiTraceHelper()
stream = ascii_helper.CreateFileStream('/tmp/ns3lte.tr')
lte.lte.EnableAsciiAll(stream)
prefix = ipaddress.Ipv4Prefix("10.0.0.0/16")
mobb = None
nodes = []
for i in xrange(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
mob = ns.mobility.ConstantPositionMobilityModel()
mob.SetPosition(ns.core.Vector3D(10.0 * i, 0.0, 0.0))
if i == 1:
# first node is nodeb
lte.setnodeb(node)
mobb = mob
node.newnetif(lte, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)])
nodes.append(node)
if i == 1:
_tmp, ns3dev = lte.findns3dev(node)
lte.lte.AddMobility(ns3dev.GetPhy(), mob)
if i > 1:
lte.linknodeb(node, nodes[0], mob, mobb)
session.thread = session.run(vis=opt.visualize)
return session
def wifisession(opt):
"""
Run a test wifi session.
"""
nodeutils.set_node_map(nodemaps.NODES)
session = Ns3Session(1, persistent=True, duration=opt.duration)
session.name = "ns3wifi"
session.filename = session.name + ".py"
session.node_count = str(opt.numnodes + 1)
add_to_server(session)
wifi = session.create_node(cls=Ns3WifiNet, name="wlan1")
wifi.setposition(30, 30, 0)
wifi.phy.Set("RxGain", ns.core.DoubleValue(18.0))
prefix = ipaddress.Ipv4Prefix("10.0.0.0/16")
nodes = []
for i in xrange(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
node.newnetif(wifi, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)])
nodes.append(node)
session.setupconstantmobility()
wifi.usecorepositions()
# PHY tracing
# wifi.phy.EnableAsciiAll("ns3wifi")
session.thread = session.run(vis=False)
return session
def __init__(self, config=None):
"""
Create a CoreEmu object.
:param dict config: configuration options
"""
# set umask 0
os.umask(0)
# configuration
if not config:
config = {}
self.config = config
# session management
self.session_id_gen = IdGen(_id=0)
self.sessions = {}
# set default nodes
node_map = nodemaps.NODES
nodeutils.set_node_map(node_map)
# load services
self.service_errors = []
self.load_services()
# catch exit event
atexit.register(self.shutdown)
def wifisession(opt):
"""
Run a random walk wifi session.
"""
nodeutils.set_node_map(nodemaps.NODES)
session = Ns3Session(1, persistent=True, duration=opt.duration)
session.name = "ns3wifirandomwalk"
session.filename = session.name + ".py"
session.node_count = str(opt.numnodes + 1)
add_to_server(session)
wifi = session.create_node(cls=Ns3WifiNet, name="wlan1", rate="OfdmRate12Mbps")
wifi.setposition(30, 30, 0)
# for improved connectivity
wifi.phy.Set("RxGain", ns.core.DoubleValue(18.0))
prefix = ipaddress.Ipv4Prefix("10.0.0.0/16")
services_str = "zebra|OSPFv3MDR|IPForward"
nodes = []
for i in xrange(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
node.newnetif(wifi, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)])
nodes.append(node)
session.services.add_services(node, "router", services_str.split("|"))
session.services.boot_services(node)
session.setuprandomwalkmobility(bounds=(1000.0, 750.0, 0))
# PHY tracing
# wifi.phy.EnableAsciiAll("ns3wifirandomwalk")
# mobility tracing
# session.setupmobilitytracing(wifi, "ns3wifirandomwalk.mob.tr",
# nodes, verbose=True)
session.startns3mobility(refresh_ms=150)
# start simulation
# session.instantiate() ?
session.thread = session.run(vis=opt.viz)
return session