wifi.wifihelper.SetRemoteStationManager(
"ns3::ConstantRateWifiManager", "DataMode",
ns.core.StringValue("OfdmRate54Mbps"))
wifi.add(h2)
info('*** Configuring hosts\n')
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
h2.setIP('192.168.123.3/24')
mininet.ns3.start()
info('*** Testing network connectivity\n')
net.pingAll()
info('*** Starting TCP iperf server on h2\n')
h2.sendCmd("iperf -s")
info(
'*** Testing bandwidth between h0 and h2 while h1 is not transmitting\n'
)
h0.cmdPrint("iperf -c 192.168.123.3")
info(
'*** Testing bandwidth between h0 and h2 while h1 is transmitting at 6Mbps\n'
)
h1.sendCmd("iperf -c 192.168.123.3")
h0.cmdPrint("iperf -c 192.168.123.3")
CLI(net)
def scratchNet(cname='controller', cargs='-v ptcp:'):
"Create network from scratch using Open vSwitch."
info("*** Creating nodes\n")
controller = Node('c0', inNamespace=False)
switch = Node('s0', inNamespace=False)
switch1 = Node('s1', inNamespace=False)
h0 = Node('h0')
h1 = Node('h1')
h2 = Node('h2')
h3 = Node('h3')
h4 = Node('h4')
h5 = Node('h5')
h6 = Node('h6')
h7 = Node('h7')
info("*** Creating links\n")
Link(h0, switch)
Link(h1, switch)
Link(h2, switch)
Link(h3, switch)
Link(h4, switch1)
Link(h5, switch1)
Link(h6, switch1)
Link(h7, switch1)
info("*** Configuring hosts\n")
h0.setIP('192.168.123.1/24')
h1.setIP('192.168.123.2/24')
h2.setIP('192.168.123.3/24')
h3.setIP('192.168.123.4/24')
h4.setIP('192.168.123.5/24')
h5.setIP('192.168.123.6/24')
h6.setIP('192.168.123.7/24')
h7.setIP('192.168.123.8/24')
info(str(h0) + '\n')
info(str(h1) + '\n')
info(str(h2) + '\n')
info(str(h3) + '\n')
info(str(h4) + '\n')
info(str(h5) + '\n')
info(str(h6) + '\n')
info(str(h7) + '\n')
info("*** Starting network using Open vSwitch\n")
controller.cmd(cname + ' ' + cargs + '&')
switch.cmd('ovs-vsctl del-br dp0')
switch.cmd('ovs-vsctl add-br dp0')
switch1.cmd('ovs-vsctl del-br dp0')
switch1.cmd('ovs-vsctl add-br dp0')
net.addLink(switch, switch1, delay='5ms', loss=20)
for intf in switch.intfs.values():
print switch.cmd('ovs-vsctl add-port dp0 %s' % intf)
for intf in switch1.intfs.values():
print switch1.cmd('ovs-vsctl add-port dp0 %s' % intf)
# Note: controller and switch are in root namespace, and we
# can connect via loopback interface
switch.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
switch1.cmd('ovs-vsctl set-controller dp0 tcp:127.0.0.1:6633')
linkopts = dict(bw=10,
delay='5ms',
loss=20,
max_queue_size=1000,
use_htb=True)
info('*** Waiting for switch to connect to controller')
while 'is_connected' not in quietRun('ovs-vsctl show'):
sleep(1)
info('.')
info('\n')
info("*** Running test\n")
h0.sendCmd(
' /home/amellalghamdi/Desktop/cse223bFinalProject/lib/kv_server 1 239.0.2.1 9000 1 2 3 4 >&1 > `ifconfig | grep eth | cut -f1 -d`.out1`'
)
h1.cmdPrint(
' /home/amellalghamdi/Desktop/cse223bFinalProject/lib/kv_server 2 239.0.2.1 9000 1 2 3 4 >&1 > `ifconfig | grep eth | cut -f1 -d`.out2`'
)
h2.cmdPrint(
'/home/amellalghamdi/Desktop/cse223bFinalProject/lib/kv_server 3 239.0.2.1 9000 1 2 3 4 >&1 > `ifconfig | grep eth | cut -f1 -d`.out3'
)
h3.cmdPrint(
' /home/amellalghamdi/Desktop/cse223bFinalProject/lib/kv_server 4 239.0.2.1 9000 1 2 3 4 >&1 > `ifconfig | grep eth | cut -f1 -d`.out4'
)
info("*** Stopping network\n")
#controller.cmd( 'kill %' + cname )
#switch.cmd( 'ovs-vsctl del-br dp0' )
#switch.deleteIntfs()
#switch1.cmd( 'ovs-vsctl del-br dp0' )
#switch1.deleteIntfs()
info('\n')
