def main():
framework.start()
# First, we initialize a few local variables that control some
# simulation parameters.
cmd = ns.core.CommandLine()
cmd.backboneNodes = {{backbone_nodes}}
cmd.infraNodes = {{infra_nodes}}
cmd.lanNodes = {{lan_nodes}}
cmd.stopTime = {{exec_time}}
# Simulation defaults are typically set next, before command line
# arguments are parsed.
ns.core.Config.SetDefault("ns3::OnOffApplication::PacketSize",
ns.core.StringValue("1472"))
ns.core.Config.SetDefault("ns3::OnOffApplication::DataRate",
ns.core.StringValue("100kb/s"))
backboneNodes = int(cmd.backboneNodes)
infraNodes = int(cmd.infraNodes)
lanNodes = int(cmd.lanNodes)
stopTime = int(cmd.stopTime)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# #
# Construct the backbone #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# Create a container to manage the nodes of the adhoc(backbone) network.
# Later we'll create the rest of the nodes we'll need.
backbone = ns.network.NodeContainer()
backbone.Create(backboneNodes)
# Create the backbone wifi net devices and install them into the nodes in
# our container
wifi = ns.wifi.WifiHelper()
mac = ns.wifi.WifiMacHelper()
mac.SetType("ns3::AdhocWifiMac")
wifi.SetRemoteStationManager(
"ns3::ConstantRateWifiManager", "DataMode",
ns.core.StringValue("OfdmRate{}Mbps".format({{ofdm_rate}})))
wifiPhy = ns.wifi.YansWifiPhyHelper.Default()
wifiChannel = ns.wifi.YansWifiChannelHelper.Default()
wifiPhy.SetChannel(wifiChannel.Create())
backboneDevices = wifi.Install(wifiPhy, mac, backbone)
# Add the IPv4 protocol stack to the nodes in our container
print("Enabling OLSR routing on all backbone nodes")
internet = ns.internet.InternetStackHelper()
olsr = ns.olsr.OlsrHelper()
internet.SetRoutingHelper(olsr)
# has effect on the next Install ()
internet.Install(backbone)
# Assign IPv4 addresses to the device drivers(actually to the associated
# IPv4 interfaces) we just created.
ipAddrs = ns.internet.Ipv4AddressHelper()
ipAddrs.SetBase(ns.network.Ipv4Address("192.168.0.0"),
ns.network.Ipv4Mask("255.255.255.0"))
ipAddrs.Assign(backboneDevices)
# The ad-hoc network nodes need a mobility model so we aggregate one to
# each of the nodes we just finished building.
mobility = ns.mobility.MobilityHelper()
mobility.SetPositionAllocator("ns3::GridPositionAllocator", "MinX",
ns.core.DoubleValue(20.0), "MinY",
ns.core.DoubleValue(20.0), "DeltaX",
ns.core.DoubleValue(20.0), "DeltaY",
ns.core.DoubleValue(20.0), "GridWidth",
ns.core.UintegerValue(5), "LayoutType",
ns.core.StringValue("RowFirst"))
mobility.SetMobilityModel(
"ns3::RandomDirection2dMobilityModel", "Bounds",
ns.mobility.RectangleValue(ns.mobility.Rectangle(-500, 500, -500,
500)), "Speed",
ns.core.StringValue("ns3::ConstantRandomVariable[Constant=2]"),
"Pause",
ns.core.StringValue("ns3::ConstantRandomVariable[Constant=0.2]"))
mobility.Install(backbone)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# #
# Construct the LANs #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# Reset the address base-- all of the CSMA networks will be in
# the "172.16 address space
ipAddrs.SetBase(ns.network.Ipv4Address("172.16.0.0"),
ns.network.Ipv4Mask("255.255.255.0"))
for i in range(backboneNodes):
# Create a container to manage the nodes of the LAN. We need
# two containers here; one with all of the new nodes, and one
# with all of the nodes including new and existing nodes
newLanNodes = ns.network.NodeContainer()
newLanNodes.Create(lanNodes - 1)
lan = ns.network.NodeContainer(
ns.network.NodeContainer(backbone.Get(i)), newLanNodes)
# Create the CSMA net devices and install them into the nodes in our
# collection.
csma = ns.csma.CsmaHelper()
csma.SetChannelAttribute(
"DataRate",
ns.network.DataRateValue(ns.network.DataRate({{datarate}})))
csma.SetChannelAttribute(
"Delay", ns.core.TimeValue(ns.core.MilliSeconds({{delay}})))
lanDevices = csma.Install(lan)
# Add the IPv4 protocol stack to the new LAN nodes
internet.Install(newLanNodes)
# Assign IPv4 addresses to the device drivers(actually to the
# associated IPv4 interfaces) we just created.
ipAddrs.Assign(lanDevices)
# Assign a new network prefix for the next LAN, according to the
# network mask initialized above
ipAddrs.NewNetwork()
# The new LAN nodes need a mobility model so we aggregate one
# to each of the nodes we just finished building.
mobilityLan = ns.mobility.MobilityHelper()
positionAlloc = ns.mobility.ListPositionAllocator()
for j in range(newLanNodes.GetN()):
positionAlloc.Add(ns.core.Vector(0.0, (j * 10 + 10), 0.0))
mobilityLan.SetPositionAllocator(positionAlloc)
mobilityLan.PushReferenceMobilityModel(backbone.Get(i))
mobilityLan.SetMobilityModel("ns3::ConstantPositionMobilityModel")
mobilityLan.Install(newLanNodes)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# #
# Construct the mobile networks #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# Reset the address base-- all of the 802.11 networks will be in
# the "10.0" address space
ipAddrs.SetBase(ns.network.Ipv4Address("10.0.0.0"),
ns.network.Ipv4Mask("255.255.255.0"))
for i in range(backboneNodes):
# Create a container to manage the nodes of the LAN. We need
# two containers here; one with all of the new nodes, and one
# with all of the nodes including new and existing nodes
stas = ns.network.NodeContainer()
stas.Create(infraNodes - 1)
infra = ns.network.NodeContainer(
ns.network.NodeContainer(backbone.Get(i)), stas)
# Create another ad hoc network and devices
ssid = ns.wifi.Ssid('wifi-infra' + str(i))
wifiInfra = ns.wifi.WifiHelper()
wifiPhy.SetChannel(wifiChannel.Create())
wifiInfra.SetRemoteStationManager('ns3::ArfWifiManager')
macInfra = ns.wifi.WifiMacHelper()
macInfra.SetType("ns3::StaWifiMac", "Ssid", ns.wifi.SsidValue(ssid))
# setup stas
staDevices = wifiInfra.Install(wifiPhy, macInfra, stas)
# setup ap.
macInfra.SetType("ns3::ApWifiMac", "Ssid", ns.wifi.SsidValue(ssid),
"BeaconInterval",
ns.core.TimeValue(ns.core.Seconds(2.5)))
apDevices = wifiInfra.Install(wifiPhy, macInfra, backbone.Get(i))
# Collect all of these new devices
infraDevices = ns.network.NetDeviceContainer(apDevices, staDevices)
# Add the IPv4 protocol stack to the nodes in our container
internet.Install(stas)
# Assign IPv4 addresses to the device drivers(actually to the associated
# IPv4 interfaces) we just created.
ipAddrs.Assign(infraDevices)
# Assign a new network prefix for each mobile network, according to
# the network mask initialized above
ipAddrs.NewNetwork()
# The new wireless nodes need a mobility model so we aggregate one
# to each of the nodes we just finished building.
subnetAlloc = ns.mobility.ListPositionAllocator()
for j in range(infra.GetN()):
subnetAlloc.Add(ns.core.Vector(0.0, j, 0.0))
mobility.PushReferenceMobilityModel(backbone.Get(i))
mobility.SetPositionAllocator(subnetAlloc)
mobility.SetMobilityModel(
"ns3::RandomDirection2dMobilityModel", "Bounds",
ns.mobility.RectangleValue(ns.mobility.Rectangle(-10, 10, -10,
10)), "Speed",
ns.core.StringValue("ns3::ConstantRandomVariable[Constant=3]"),
"Pause",
ns.core.StringValue("ns3::ConstantRandomVariable[Constant=0.4]"))
mobility.Install(stas)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# #
# Application configuration #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# Create the OnOff application to send UDP datagrams of size
# 210 bytes at a rate of 448 Kb/s, between two nodes
port = 9 # Discard port(RFC 863)
appSource = ns.network.NodeList.GetNode(backboneNodes)
lastNodeIndex = backboneNodes + backboneNodes * (
lanNodes - 1) + backboneNodes * (infraNodes - 1) - 1
appSink = ns.network.NodeList.GetNode(lastNodeIndex)
# Let's fetch the IP address of the last node, which is on Ipv4Interface 1
remoteAddr = appSink.GetObject(ns.internet.Ipv4.GetTypeId()).GetAddress(
1, 0).GetLocal()
onoff = ns.applications.OnOffHelper(
"ns3::UdpSocketFactory",
ns.network.Address(ns.network.InetSocketAddress(remoteAddr, port)))
apps = onoff.Install(ns.network.NodeContainer(appSource))
apps.Start(ns.core.Seconds(3))
apps.Stop(ns.core.Seconds(stopTime - 1))
# Create a packet sink to receive these packets
sink = ns.applications.PacketSinkHelper(
"ns3::UdpSocketFactory",
ns.network.InetSocketAddress(ns.network.Ipv4Address.GetAny(), port))
apps = sink.Install(ns.network.NodeContainer(appSink))
apps.Start(ns.core.Seconds(3))
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
# #
# Tracing configuration #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # /
csma = ns.csma.CsmaHelper()
# Let's set up some ns-2-like ascii traces, using another helper class
#
ascii = ns.network.AsciiTraceHelper()
stream = ascii.CreateFileStream("mixed-wireless.tr")
wifiPhy.EnableAsciiAll(stream)
csma.EnableAsciiAll(stream)
internet.EnableAsciiIpv4All(stream)
mob = ascii.CreateFileStream("mixed-wireless.mob")
mobility.EnableAsciiAll(mob)
# Csma captures in non-promiscuous mode
csma.EnablePcapAll("mixed-wireless", False)
# Let's do a pcap trace on the backbone devices
wifiPhy.EnablePcap("mixed-wireless", backboneDevices)
wifiPhy.EnablePcap("mixed-wireless", appSink.GetId(), 0)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# #
# Run simulation #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
ns.core.Simulator.Stop(ns.core.Seconds(stopTime))
ns.core.Simulator.Run()
ns.core.Simulator.Destroy()
framework.addBinaryFile("mixed-wireless.tr")
framework.addBinaryFile("mixed-wireless.mob")
path = "*.pcap"
for filename in glob.glob(path):
framework.addBinaryFile(filename)
framework.stop()
# Tell MACI to include this file on startup.
framework.addBinaryFile(new_file_name)
def iperf(source, destination):
dst_address = prefixes.ip4_address(destination)
print "Starting iperf to %s" % str(dst_address)
destination.cmd(["iperf", "-s", "-D"])
source.client.icmd(["iperf", "-t", "10", "-c", dst_address])
destination.cmd(["killall", "-9", "iperf"])
if __name__ == '__main__':
framework.start()
print "Starting Experiment"
# 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)
for name, f in filters.items():
env.filters[name] = f
add_template(env)
def datetime_filter(t):
delta = int(time.time() - t)
if delta < 60:
return u'1分钟前'
if delta < 3600:
return u'%s分钟前' % (delta // 60)
if delta < 86400:
return u'%s小时前' % (delta // 3600)
if delta < 604800:
return u'%s天前' % (delta // 86400)
dt = datetime.fromtimestamp(t)
return u'%s年%s月%s日' % (dt.year, dt.month, dt.day)
def init_database():
db.create_engine(**db_config)
from config import get_configs
configs = get_configs()
server_config = configs['server']
db_config = configs['db']
session_config = configs['session']
init(server_config['host'], server_config['port'])
init_database()
init_jinja2(filters=dict(datetime=datetime_filter))
add_routes('handlers')
start()