def launch_network(k=4, bw=10, ip_alias=True, fair_queues=False, cli=False):
signal.signal(signal.SIGTERM, signal_term_handler)
# Cleanup the network
cleanup()
sh("killall ospfd zebra getLoads.py nc")
# Remove tmp files and old namespaces
subprocess.call(['rm', '/tmp/*.log', '/tmp/*.pid', '/tmp/mice*'])
subprocess.call(['rm', '/var/run/netns/*'])
# Flush root namespace mangle table
subprocess.call(["iptables", "-t", "mangle" ,"-F"])
subprocess.call(["iptables", "-t", "mangle" ,"-X"])
# Topology
topo = FatTree(k=k, sflow=False, ovs_switches=False)
# Interfaces
if fair_queues:
print("*** Using FairQueues at the network interfaces")
intf = custom(DCTCIntf, bw=bw)
else:
print("*** Using normal pFIFO queues at the network interfaces")
intf = custom(PrioFifoIntf, bw=bw)
# Network
net = IPNet(topo=topo, debug=_lib.DEBUG_FLAG, intf=intf)
# Save the TopoDB object
TopologyDB(net=net).save(cfg.DB_path)
# Start the network
net.start()
# Setup hash seeds
setupHashSeeds(topo)
# Start intreface collectors
startCounterCollectors(topo, interval=1)
if ip_alias:
setupSecondaryIps(net)
if cli:
# Start the Fibbing CLI
FibbingCLI(net)
else:
print("*** Looping forever. Press CTRL+C to quit")
while True:
try:
time.sleep(2)
except KeyboardInterrupt:
print("*** KeyboardInterrupt catched! Shutting down")
break
net.stop()
stopCounterCollectors(topo)
def launch_network(testfile):
net = IPNet(topo = Lab1Topo(testfile=testfile),#Lab1ECMPTopo(testfile=testfile),#
debug =_lib.DEBUG_FLAG,
intf = custom(TCIntf, bw = BW),
host = MyCustomHost)
TopologyDB(net = net).save(dconf.DB_Path)
net.start()
FibbingCLI(net)
net.stop()
def launch_network():
#signal.signal(signal.SIGINT, signal_handler)
#signal.signal(signal.SIGTERM, signal_handler)
net = IPNet(topo=SimpleTopo(),
debug=_lib.DEBUG_FLAG,
intf=custom(TCIntf, bw=BW),
host=MyCustomHost)
TopologyDB(net=net).save(dconf.DB_Path)
net.start()
FibbingCLI(net)
net.stop()
def launch_network():
net = IPNet(topo=SIGTopo(),
debug=_lib.DEBUG_FLAG,
intf=custom(TCIntf, bw=BW))
TopologyDB(net=net).save(DB_path)
net.start()
FibbingCLI(net)
net.stop()
def launch_network():
#topo = TestTopo()
topo = FatTree(k = 2, extraSwitch=True)
intf = custom(TCIntf)
#creates nodes and links
net = IPNet(topo=topo,
debug=_lib.DEBUG_FLAG,
intf=intf, switch=LinuxBridge)
#just stores the topology in a json object, it does not take into account mulipaths between nodes
TopologyDB(net=net).save(DB_path)
#start processes(quagga) and maps again the ips
net.start()
FibbingCLI(net)
net.stop()
