def simpleTest():
"""Create and test a simple network"""
net = Mininext(topo=None, build=False)
"Initialize a service helper for Quagga with default options"
quaggaSvc = QuaggaService(autoStop=False)
# Add controllers
print("Adding controllers...")
c0 = net.addController(name='c0', controller=Floodlight, ip='127.0.0.1', port=6653,
cargs='-cf src/main/resources/floodlightmininet_1.properties')
c1 = net.addController(name='c1', controller=Floodlight, ip='127.0.0.1', port=7653,
cargs='-cf src/main/resources/floodlightmininet_2.properties')
print("Adding switches...")
switch1 = net.addSwitch('switch1')
switch2 = net.addSwitch('switch2')
print("Adding hosts...")
host1 = net.addHost('host1', ip='10.0.0.1/24')
host2 = net.addHost('host2', ip='20.0.0.1/24')
print("Adding links...")
net.addLink(host1, switch1)
net.addLink(host2, switch2)
net.addLink(switch1, switch2)
print("Building network...")
print(net.hosts)
net.build()
print("Starting controllers...")
for controller in net.controllers:
controller.start()
print("Starting switches...")
net.get('switch1').start([c0])
net.get('switch2').start([c1])
CLI(net)
net.stop()
if __name__ == '__main__':
# Tell mininet to print useful information
setLogLevel('info')
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
"""net.get("r1").cmd('service quagga restart')
net.get("r1").cmd('chown quagga:quaggavty /etc/quagga/*.conf')
net.get("r1").cmd('chmod 640 /etc/quagga/*.conf')
net.get("r2").cmd('service quagga restart')
net.get("r2").cmd('chown quagga:quaggavty /etc/quagga/*.conf')
net.get("r2").cmd('chmod 640 /etc/quagga/*.conf')
net.get("r3").cmd('service quagga restart')
net.get("r3").cmd('chown quagga:quaggavty /etc/quagga/*.conf')
net.get("r3").cmd('chmod 640 /etc/quagga/*.conf')
net.get("r4").cmd('service quagga restart')
net.get("r4").cmd('chown quagga:quaggavty /etc/quagga/*.conf')
net.get("r4").cmd('chmod 640 /etc/quagga/*.conf')"""
net.get("r1").cmd('sysctl net.ipv4.ip_forward=1')
net.get("r2").cmd('sysctl net.ipv4.ip_forward=1')
net.get("r3").cmd('sysctl net.ipv4.ip_forward=1')
net.get("r4").cmd('sysctl net.ipv4.ip_forward=1')
net.get("h1").cmd('sysctl net.ipv4.ip_forward=1')
net.get("h2").cmd('sysctl net.ipv4.ip_forward=1')
# net.get("h1").cmd("route add default gw 192.0.1.1")
# net.get("h2").cmd("route add default gw 192.0.4.1")
ts = time.time()
j = 0
while (j < 20):
loss = net.ping(net.hosts)
if (loss == 0):
#print "my loss:", loss
te = time.time()
break
j += 1
print "td:", te - ts
# info('** Testing network connectivity\n')
#net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Dumping host processes\n')
# enabing the rout forwarding for each router
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
# assigning interface IPs for each
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.1/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.6.2/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.3.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.5.2/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.3.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.5.1/24")
# Network test
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Dumping host processes\n')
# enabing the rout forwarding for each router
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
# assigning interface IPs for each
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.1/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.6.2/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.3.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.5.2/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.3.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.5.1/24")
# Network test
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
# assign IPs to interfaces.
topo.setIP(net)
# change IP forwarding variable to 1
for host in net.hosts:
host.cmd("echo '1' > /proc/sys/net/ipv4/ip_forward")
# info('** Dumping host connections\n')
# dumpNodeConnections(net.hosts)
#info('** Dumping host processes\n')
#for host in net.hosts:
# host.cmdPrint("ps aux")
net.get('h1').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py h1 &")
net.get('h2').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py h2 &")
net.get('r1').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py r1 &")
net.get('r2').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py r2 &")
net.get('r3').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py r3 &")
net.get('r4').cmdPrint("python /home/betrfs/CSE534-Homework/homework-3/riplite.py r4 &")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
net.get("r1").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r2").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r3").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r4").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r1").cmd("ifconfig r1-eth1 192.0.2.2/24")
#net.get("r1").cmd("ip route add 192.0.1.0/24 via 192.0.2.2")
net.get("r2").cmd("ip route add 192.0.1.0/24 via 192.0.2.2")
net.get("r2").cmd("ifconfig r2-eth1 192.0.5.1/24")
net.get("r2").cmd("ip route add 192.0.4.0/24 via 192.0.5.2")
net.get("r4").cmd("ifconfig r4-eth2 192.0.5.2/24")
net.get("r4").cmd("ip route add 192.0.2.0/24 via 192.0.5.1")
net.get("r4").cmd("ip route add 192.0.1.0/24 via 192.0.5.1")
net.get("r1").cmd("ip route add 192.0.5.0/24 via 192.0.2.1")
net.get("r1").cmd("ip route add 192.0.4.0/24 via 192.0.2.1")
net.get("h1").cmd("route add default gw 192.0.1.1")
net.get("h2").cmd("route add default gw 192.0.4.1")
net.get("r1").cmd("ifconfig r1-eth2 192.0.3.2/24")
net.get("r3").cmd("ip route add 192.0.1.0/24 via 192.0.3.2")
net.get("r1").cmd("ip route add 192.0.6.0/24 via 192.0.3.1")
net.get("r3").cmd("ifconfig r3-eth1 192.0.6.1/24")
net.get("r4").cmd("ifconfig r4-eth1 192.0.6.2/24")
net.get("r3").cmd("ip route add 192.0.4.0/24 via 192.0.6.2")
net.get("r1").cmd("ip route add 192.0.3.0/24 via 192.0.6.1")
net.get("r2").cmd("ip route add 192.0.3.0/24 via 192.0.2.2")
net.get("r2").cmd("ip route add 192.0.6.0/24 via 192.0.5.2")
net.get("r3").cmd("ip route add 192.0.2.0/24 via 192.0.3.2")
net.get("r3").cmd("ip route add 192.0.5.0/24 via 192.0.6.2")
net.get("r4").cmd("ip route add 192.0.3.0/24 via 192.0.6.1")
net.get("r1").cmd("python /home/mininet/myfolder/server_class.py R1 &")
net.get("r2").cmd("python /home/mininet/myfolder/server_class.py R2 &")
net.get("r3").cmd("python /home/mininet/myfolder/server_class.py R3 &")
net.get("r4").cmd("python /home/mininet/myfolder/server_class.py R4 &")
net.get("h1").cmd("python /home/mininet/myfolder/server_class.py H1 &")
net.get("h2").cmd("python /home/mininet/myfolder/server_class.py H2 &")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Dumping host processes\n')
# for host in net.hosts:
# host.cmdPrint("ps aux")
# for host in net.hosts:
# host.cmdPrint('ifconfig')
# Enabling IP forwarding
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
# Setting Interface IPs
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.1/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.6.2/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.3.1/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.3.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.5.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.5.2/24")
# Static Routes from R1 to R2
net.get("H1").cmd("route add default gw 172.0.1.2")
net.get("R1").cmd("ip route add 172.0.3.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R1").cmd("ip route add 172.0.4.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R2").cmd("ip route add 172.0.4.0/24 via 172.0.3.2 dev R2-eth1")
# Allowing Nating ar each router in the path from H1 to H2
net.get("R1").cmd(
"iptables -t nat -A POSTROUTING -o R1-eth1 -j MASQUERADE")
net.get("R1").cmd(
"iptables -A FORWARD -i R1-eth1 -o R1-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT"
)
net.get("R1").cmd("iptables -A FORWARD -i R1-eth0 -o R1-eth1 -j ACCEPT")
net.get("R2").cmd(
"iptables -t nat -A POSTROUTING -o R2-eth1 -j MASQUERADE")
net.get("R2").cmd(
"iptables -A FORWARD -i R2-eth1 -o R2-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT"
)
net.get("R2").cmd("iptables -A FORWARD -i R2-eth0 -o R2-eth1 -j ACCEPT")
net.get("R4").cmd(
"iptables -t nat -A POSTROUTING -o R4-eth0 -j MASQUERADE")
net.get("R4").cmd(
"iptables -A FORWARD -i R4-eth0 -o R4-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT"
)
net.get("R4").cmd("iptables -A FORWARD -i R4-eth1 -o R4-eth0 -j ACCEPT")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
# Need to assign IPs to all the interfaces in the topology created
info('** Assigning IPs to interfaces\n')
net.get('r1').cmd('ip address add 173.0.3.3/16 dev r1-eth1')
net.get('r1').cmd('ip address add 174.0.3.4/16 dev r1-eth2')
net.get('r2').cmd('ip address add 175.0.3.5/16 dev r2-eth1')
net.get('r3').cmd('ip address add 176.0.3.6/16 dev r3-eth1')
net.get('r4').cmd('ip address add 176.0.4.2/16 dev r4-eth1')
net.get('r4').cmd('ip address add 177.0.4.3/16 dev r4-eth2')
# Setting IP Forwarding to 1
net.get('h1').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('h2').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r1').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r2').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r3').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r4').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
# Creating new static routes
net.get('h1').cmd('ip route add 0.0.0.0/0 via 172.0.2.1')
net.get('r1').cmd('ip route add 175.0.0.0/16 via 173.0.3.2')
net.get('r1').cmd('ip route add 177.0.0.0/16 via 173.0.3.2')
net.get('r1').cmd('ip route add 176.0.0.0/16 via 174.0.3.1')
net.get('r2').cmd('ip route add 177.0.0.0/16 via 175.0.4.1')
net.get('r2').cmd('ip route add 174.0.0.0/16 via 173.0.3.3')
net.get('r2').cmd('ip route add 176.0.0.0/16 via 175.0.4.1')
net.get('r2').cmd('ip route add 172.0.0.0/16 via 173.0.3.3')
net.get('r3').cmd('ip route add 177.0.0.0/16 via 176.0.4.2')
net.get('r3').cmd('ip route add 173.0.0.0/16 via 174.0.3.4')
net.get('r3').cmd('ip route add 175.0.0.0/16 via 176.0.3.6')
net.get('r3').cmd('ip route add 172.0.0.0/16 via 174.0.3.4')
net.get('r4').cmd('ip route add 173.0.0.0/16 via 175.0.3.5')
net.get('r4').cmd('ip route add 174.0.0.0/16 via 176.0.3.6')
net.get('r4').cmd('ip route add 172.0.0.0/16 via 176.0.3.6')
net.get('h2').cmd('ip route add 0.0.0.0/0 via 177.0.4.3')
net.get('r1').cmd(
'iptables -A FORWARD -i r1-eth0 -o r1-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT'
)
net.get('r1').cmd('iptables -A FORWARD -i r1-eth0 -o r1-eth1 -j ACCEPT')
net.get('r2').cmd(
'iptables -t nat -A POSTROUTING -o r2-eth1 -j MASQUERADE')
net.get('r2').cmd(
'iptables -A FORWARD -i r2-eth0 -o r2-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT'
)
net.get('r2').cmd('iptables -A FORWARD -i r2-eth0 -o r2-eth1 -j ACCEPT')
net.get('r4').cmd(
'iptables -t nat -A POSTROUTING -o r4-eth1 -j MASQUERADE')
net.get('r4').cmd(
'iptables -A FORWARD -i r4-eth1 -o r4-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT'
)
net.get('r4').cmd('iptables -A FORWARD -i r4-eth1 -o r4-eth0 -j ACCEPT')
net.get('r4').cmd('iptables -A FORWARD -i r4-eth0 -o r4-eth2 -j ACCEPT')
net.get('r4').cmd(
'iptables -A FORWARD -i r4-eth0 -o r4-eth2 -m state --state RELATED,ESTABLISHED -j ACCEPT'
)
net.get('r4').cmd(
'iptables -t nat -A POSTROUTING -o r4-eth2 -j MASQUERADE')
net.get('r3').cmd('iptables -A FORWARD -i r3-eth1 -o r3-eth0 -j ACCEPT')
net.get('r3').cmd(
'iptables -A FORWARD -i r3-eth1 -o r3-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT'
)
net.get('r3').cmd(
'iptables -t nat -A POSTROUTING -o r3-eth0 -j MASQUERADE')
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Testing network connectivity\n')
net.ping(net.hosts)
# part A1
net.get('H1').cmd('ifconfig H1-eth0 170.1.1.1/24')
net.get('H2').cmd('ifconfig H2-eth0 175.7.7.2/24')
net.get('R1').cmd('ifconfig R1-eth0 170.1.1.2/24')
net.get('R1').cmd('ifconfig R1-eth1 171.1.1.1/24')
net.get('R1').cmd('ifconfig R1-eth2 172.1.1.1/24')
net.get('R2').cmd('ifconfig R2-eth0 171.1.1.2/24')
net.get('R2').cmd('ifconfig R2-eth1 173.1.1.2/24')
net.get('R3').cmd('ifconfig R3-eth0 172.1.1.2/24')
net.get('R3').cmd('ifconfig R3-eth1 174.1.1.2/24')
net.get('R4').cmd('ifconfig R4-eth0 175.7.7.1/24')
net.get('R4').cmd('ifconfig R4-eth1 173.1.1.1/24')
net.get('R4').cmd('ifconfig R4-eth2 174.1.1.1/24')
#change the IP forwarding variable to 1
net.get('H1').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('H2').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('R1').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('R2').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('R3').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('R4').cmd('sysctl -w net.ipv4.ip_forward=1')
# time.sleep(3000)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
for host in net.hosts:
if host.name == 'H1':
host.cmd(
'ip route add 192.168.102.0/24 via 192.168.101.1 dev H1-eth0')
host.cmd(
'ip route add 192.168.103.0/24 via 192.168.101.1 dev H1-eth0')
host.cmd(
'ip route add 192.168.104.0/24 via 192.168.101.1 dev H1-eth0')
host.cmd(
'ip route add 192.168.105.0/24 via 192.168.101.1 dev H1-eth0')
host.cmd(
'ip route add 192.168.106.0/24 via 192.168.101.1 dev H1-eth0')
if host.name == 'R1':
host.setIP('192.168.102.2/24', intf='R1-eth1')
host.setIP('192.168.103.2/24', intf='R1-eth2')
host.cmd(
'ip route add 192.168.104.0/24 via 192.168.102.1 dev R1-eth1')
host.cmd(
'ip route add 192.168.105.0/24 via 192.168.103.1 dev R1-eth2')
host.cmd(
'ip route add 192.168.106.0/24 via 192.168.102.1 dev R1-eth1')
if host.name == 'R2':
host.setIP('192.168.104.1/24', intf='R2-eth1')
host.cmd(
'ip route add 192.168.101.0/24 via 192.168.102.2 dev R2-eth0')
host.cmd(
'ip route add 192.168.103.0/24 via 192.168.102.2 dev R2-eth0')
host.cmd(
'ip route add 192.168.105.0/24 via 192.168.104.2 dev R2-eth1')
host.cmd(
'ip route add 192.168.106.0/24 via 192.168.104.2 dev R2-eth1')
if host.name == 'R3':
host.setIP('192.168.105.1/24', intf='R3-eth1')
host.cmd(
'ip route add 192.168.101.0/24 via 192.168.103.2 dev R3-eth0')
host.cmd(
'ip route add 192.168.102.0/24 via 192.168.103.2 dev R3-eth0')
host.cmd(
'ip route add 192.168.104.0/24 via 192.168.105.2 dev R3-eth1')
host.cmd(
'ip route add 192.168.106.0/24 via 192.168.105.2 dev R3-eth1')
if host.name == 'R4':
host.setIP('192.168.104.2/24', intf='R4-eth1')
host.setIP('192.168.105.2/24', intf='R4-eth2')
host.cmd(
'ip route add 192.168.101.0/24 via 192.168.104.1 dev R4-eth1')
host.cmd(
'ip route add 192.168.102.0/24 via 192.168.104.1 dev R4-eth1')
host.cmd(
'ip route add 192.168.103.0/24 via 192.168.105.1 dev R4-eth2')
if host.name == 'H2':
host.cmd(
'ip route add 192.168.101.0/24 via 192.168.106.1 dev H2-eth0')
host.cmd(
'ip route add 192.168.102.0/24 via 192.168.106.1 dev H2-eth0')
host.cmd(
'ip route add 192.168.103.0/24 via 192.168.106.1 dev H2-eth0')
host.cmd(
'ip route add 192.168.104.0/24 via 192.168.106.1 dev H2-eth0')
host.cmd(
'ip route add 192.168.105.0/24 via 192.168.106.1 dev H2-eth0')
host.cmd("sysctl -w net.ipv4.ip_forward=1")
info('** Testing network connectivity\n')
startTime = time.time()
while net.ping([net.get('H1'), net.get('H2')]) != 0:
endTime = time.time()
elapsedTime = endTime - startTime
print 'Elapsed Time - ', elapsedTime
continue
endTime = time.time()
elapsedTime = endTime - startTime
print 'Convergence Time - ' + str(elapsedTime) + 's'
selfPath = os.path.dirname(
os.path.abspath(inspect.getfile(inspect.currentframe())))
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint(selfPath + "/server.py " + host.name + " > " +
host.name + ".log &")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Dumping host processes\n')
# for host in net.hosts:
# host.cmdPrint("ps aux")
# for host in net.hosts:
# host.cmdPrint('ifconfig')
# Enabling IP forwarding
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
# Setting Interface IPs
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.1/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.6.2/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.3.1/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.3.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.5.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.5.2/24")
# Static Routes from R1 to R2
net.get("H1").cmd("route add default gw 172.0.1.2")
net.get("R1").cmd("ip route add 172.0.3.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R1").cmd("ip route add 172.0.4.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R2").cmd("ip route add 172.0.4.0/24 via 172.0.3.2 dev R2-eth1")
# Allowing Nating ar each router in the path from H1 to H2
net.get("R1").cmd("iptables -t nat -A POSTROUTING -o R1-eth1 -j MASQUERADE")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth1 -o R1-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth0 -o R1-eth1 -j ACCEPT")
net.get("R2").cmd("iptables -t nat -A POSTROUTING -o R2-eth1 -j MASQUERADE")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth1 -o R2-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth0 -o R2-eth1 -j ACCEPT")
net.get("R4").cmd("iptables -t nat -A POSTROUTING -o R4-eth0 -j MASQUERADE")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth0 -o R4-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth1 -o R4-eth0 -j ACCEPT")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
net.get("r1").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r2").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r3").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r4").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r4").cmd("sysctl net.ipv4.ip_forward=1")
net.get("h1").cmd("sysctl net.ipv4.ip_forward=1")
net.get("h2").cmd("sysctl net.ipv4.ip_forward=1")
net.get("r1").cmd("ifconfig r1-eth1 193.0.1.1/24")
net.get("r1").cmd("ifconfig r1-eth2 194.0.1.1/24")
net.get("r2").cmd("ifconfig r2-eth1 193.0.1.2/24")
net.get("r3").cmd("ifconfig r3-eth1 194.0.1.2/24")
net.get("r4").cmd("ifconfig r4-eth1 195.0.1.2/24")
net.get("r4").cmd("ifconfig r4-eth2 196.0.1.2/24")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
# Need to assign IPs to all the interfaces in the topology created
info('** Assigning IPs to interfaces\n')
net.get('r1').cmd('ip address add 173.0.3.3/16 dev r1-eth1')
net.get('r1').cmd('ip address add 174.0.3.4/16 dev r1-eth2')
net.get('r2').cmd('ip address add 175.0.3.5/16 dev r2-eth1')
net.get('r3').cmd('ip address add 176.0.3.6/16 dev r3-eth1')
net.get('r4').cmd('ip address add 176.0.4.2/16 dev r4-eth1')
net.get('r4').cmd('ip address add 177.0.4.3/16 dev r4-eth2')
# Set IP forwarding to 1
net.get('h1').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('h2').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r1').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r2').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r3').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
net.get('r4').cmd('echo 1 > /proc/sys/net/ipv4/ip_forward')
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def startNetwork(static_routes):
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
t_start = datetime.now()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
net.get('H1').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get('H2').cmd('sysctl -w net.ipv4.ip_forward=1')
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.2/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.3.2/24")
net.get("R2").cmd("ifconfig R2-eth0 172.0.2.1/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.5.1/24")
net.get("R3").cmd("ifconfig R3-eth0 172.0.3.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.6.1/24")
net.get("R4").cmd("ifconfig R4-eth0 172.0.4.1/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.5.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.6.2/24")
net.get("H2").cmd("ifconfig H2-eth0 172.0.4.2/24")
if static_routes:
net.get("R1").cmd("ip route add 172.0.5.0/24 via 172.0.2.1 dev R1-eth1")
net.get("R1").cmd("ip route add 172.0.4.0/24 via 172.0.2.1 dev R1-eth1")
net.get("R1").cmd("ip route add 172.0.4.0/24 via 172.0.3.1 dev R1-eth2")
net.get("R1").cmd("ip route add 172.0.6.0/24 via 172.0.3.1 dev R1-eth2")
net.get("R2").cmd("ip route add 172.0.1.0/24 via 172.0.2.2 dev R2-eth0")
net.get("R2").cmd("ip route add 172.0.4.0/24 via 172.0.5.2 dev R2-eth1")
net.get("R2").cmd("ip route add 172.0.3.0/24 via 172.0.2.2 dev R2-eth0")
net.get("R3").cmd("ip route add 172.0.1.0/24 via 172.0.3.2 dev R3-eth0")
net.get("R3").cmd("ip route add 172.0.2.0/24 via 172.0.3.2 dev R3-eth0")
net.get("R3").cmd("ip route add 172.0.4.0/24 via 172.0.6.2 dev R3-eth1")
net.get("R4").cmd("ip route add 172.0.2.0/24 via 172.0.5.1 dev R4-eth1")
net.get("R4").cmd("ip route add 172.0.3.0/24 via 172.0.6.1 dev R4-eth2")
net.get("R4").cmd("ip route add 172.0.1.0/24 via 172.0.5.1 dev R4-eth1")
net.get("R4").cmd("ip route add 172.0.1.0/24 via 172.0.6.1 dev R4-eth2")
net.get("R1").cmd("iptables -t nat -A POSTROUTING -o R1-eth0 -j MASQUERADE")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth0 -o R1-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth1 -o R1-eth0 -j ACCEPT")
net.get("R2").cmd("iptables -t nat -A POSTROUTING -o R2-eth0 -j MASQUERADE")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth0 -o R2-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth1 -o R2-eth0 -j ACCEPT")
net.get("R3").cmd("iptables -t nat -A POSTROUTING -o R3-eth1 -j MASQUERADE")
net.get("R3").cmd("iptables -A FORWARD -i R3-eth1 -o R3-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R3").cmd("iptables -A FORWARD -i R3-eth0 -o R3-eth1 -j ACCEPT")
net.get("R4").cmd("iptables -t nat -A POSTROUTING -o R4-eth0 -j MASQUERADE")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth0 -o R4-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth1 -o R4-eth0 -j ACCEPT")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth2 -o R4-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth0 -o R4-eth2 -j ACCEPT")
info('** Testing network connectivity\n')
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
loss = 100
while (loss > 0):
loss = net.pingAll()
t_end = datetime.now() - t_start
print "Percentage Loss: " + str(loss)
print "Route Convergence Time: " + str(t_end.total_seconds()) + "seconds"
if static_routes:
print ("[MESSAGE:] Enabling Static Routes...")
else:
print ("[MESSAGE:] Disabling Static Routes...")
CLI(net)