def build( self ):
print "Build network based on our topology."
net = Mininet( topo=None, build=False, link=TCLink, ipBase=self.minieditIpBase )
net.controllers = self.addControllers()
# Make nodes
print "Getting Hosts and Switches."
for widget in self.widgetToItem:
name = widget[ 'text' ]
tags = self.canvas.gettags( self.widgetToItem[ widget ] )
nodeNum = int( name[ 1: ] )
if 'Switch' in tags:
net.addSwitch( name )
elif 'Host' in tags:
ipBaseNum, prefixLen = netParse( self.minieditIpBase )
ip = ipAdd(i=nodeNum, prefixLen=prefixLen, ipBaseNum=ipBaseNum)
net.addHost( name, ip=ip )
else:
raise Exception( "Cannot create mystery node: " + name )
# Make links
print "Getting Links."
for link in self.links.values():
( src, dst, linkopts ) = link
srcName, dstName = src[ 'text' ], dst[ 'text' ]
src, dst = net.nameToNode[ srcName ], net.nameToNode[ dstName ]
net.addLink(src, dst, **linkopts)
self.printInfo()
# Build network (we have to do this separately at the moment )
net.build()
return net
def setup(argv):
domains = []
ctlsets = sys.argv[1:]
# the controllers for the optical domain
d0 = OpticalDomain()
domains.append(d0)
ctls = ctlsets[0].split(',')
for i in range(len(ctls)):
d0.addController('c0%s' % i, controller=RemoteController, ip=ctls[i])
# the fabric domains - position 1 for domain 1, 2 for 2 ...
for i in range(1, len(ctlsets)):
f = FabricDomain(i)
domains.append(f)
ctls = ctlsets[i].split(',')
for j in range(len(ctls)):
f.addController('c%s%s' % (i, j),
controller=RemoteController,
ip=ctls[j])
# make/setup Mininet object
net = Mininet()
for d in domains:
d.build()
d.injectInto(net)
# connect COs to core - sort of hard-wired at this moment
for i in range(1, len(domains)):
an = {
"bandwidth": 100000,
"optical.type": "cross-connect",
"durable": "true"
}
net.addLink(domains[i].getTether(),
d0.getSwitches('OE%s' % i),
port1=OVS_AP,
port2=OE_AP,
speed=10000,
annotations=an,
cls=LINCLink)
# fire everything up
net.build()
map(lambda x: x.start(), domains)
# create a minimal copy of the network for configuring LINC.
cfgnet = Mininet()
cfgnet.switches = net.switches
cfgnet.links = net.links
cfgnet.controllers = d0.getControllers()
LINCSwitch.bootOE(cfgnet, d0.getSwitches())
CLI(net)
net.stop()
LINCSwitch.shutdownOE()
def simpleTest():
topo = Node45Topo()
net = Mininet(topo, link=TCLink) #主要类来创建和管理网络
mycontroller = RemoteController("c0", ip="127.0.0.1", port=6633) #创建远程控制器
net.controllers = [mycontroller]
net.start() #启动您的拓扑网络
print "Dumping host connections"
dumpNodeConnections(net.hosts) #转存文件连接
print "Testing network connectivity"
# net.pingAll() #所有节点彼此测试互连
CLI(net) #进入mininet>提示符
net.stop() #停止您的网络
def sdnnet(opt):
topo = SDNTopo()
info('*** Creating network\n')
#net = Mininet( topo=topo, controller=MyController, link=TCLink)
net = Mininet(topo=topo, link=TCLink, build=False)
controllers = []
for c in Controllers:
rc = RemoteController('c%d' % Controllers.index(c),
ip=c['ip'],
port=c['port'])
print "controller ip %s port %s" % (c['ip'], c['port'])
controllers.append(rc)
net.controllers = controllers
net.build()
host = []
for i in range(NR_NODES):
host.append(net.get('host%d' % i))
net.start()
sw = net.get('sw03.00')
print "center sw", sw
sw.attach('tapc0')
for i in range(NR_NODES):
host[i].defaultIntf().setIP('192.168.%d.%d/16' % (NWID, i))
host[i].defaultIntf().setMAC('00:00:00:00:%02x:%02x' % (NWID, i))
for i in range(NR_NODES):
for n in range(3):
for h in range(10):
host[i].setARP('192.168.%d.%d' % (n, h),
'00:00:00:00:%02x:%02x' % (n, h))
root = []
for i in range(NR_NODES):
root.append(net.get('root%d' % i))
for i in range(NR_NODES):
host[i].intf('host%d-eth1' % i).setIP('1.1.%d.1/24' % i)
root[i].intf('root%d-eth0' % i).setIP('1.1.%d.2/24' % i)
stopsshd()
startsshds(host)
if opt == "cli":
CLI(net)
stopsshd()
net.stop()
def sdnnet(opt):
topo = SDNTopo()
info( '*** Creating network\n' )
#net = Mininet( topo=topo, controller=MyController, link=TCLink)
net = Mininet( topo=topo, link=TCLink, build=False)
controllers=[]
for c in Controllers:
rc = RemoteController('c%d' % Controllers.index(c), ip=c['ip'],port=c['port'])
print "controller ip %s port %s" % (c['ip'], c['port'])
controllers.append(rc)
net.controllers=controllers
net.build()
host = []
for i in range (NR_NODES):
host.append(net.get( 'host%d' % i ))
net.start()
sw=net.get('sw03.00')
print "center sw", sw
sw.attach('tapc0')
for i in range (NR_NODES):
host[i].defaultIntf().setIP('192.168.%d.%d/16' % (NWID,i))
host[i].defaultIntf().setMAC('00:00:00:00:%02x:%02x' % (NWID,i))
for i in range (NR_NODES):
for n in range (3):
for h in range (10):
host[i].setARP('192.168.%d.%d' % (n, h), '00:00:00:00:%02x:%02x' % (n,h))
root = []
for i in range (NR_NODES):
root.append(net.get( 'root%d' % i ))
for i in range (NR_NODES):
host[i].intf('host%d-eth1' % i).setIP('1.1.%d.1/24' % i)
root[i].intf('root%d-eth0' % i).setIP('1.1.%d.2/24' % i)
stopsshd ()
startsshds ( host )
if opt=="cli":
CLI(net)
stopsshd()
net.stop()
def sdnnet(opt):
topo = SDNTopo()
info('*** Creating network\n')
#net = Mininet( topo=topo, controller=MyController, link=TCLink)
net = Mininet(topo=topo, link=TCLink, build=False)
controllers = []
for c in Controllers:
rc = RemoteController('c%d' % Controllers.index(c),
ip=c['ip'],
port=c['port'])
print "controller ip %s port %s" % (c['ip'], c['port'])
controllers.append(rc)
net.controllers = controllers
net.build()
host = []
for i in range(8):
host.append(net.get('host%d' % i))
net.start()
core_sw = []
for i in range(1):
name_suffix = '%s' % NWID + '0c' + '%02d' % i
net.get('sw' + name_suffix).attach('tap%s0' % NWID)
for i in range(8):
host[i].defaultIntf().setIP('192.168.10.10%d/24' % i)
root = []
for i in range(8):
root.append(net.get('root%d' % i))
for i in range(8):
host[i].intf('host%d-eth1' % i).setIP('1.1.%d.1/24' % i)
root[i].intf('root%d-eth0' % i).setIP('1.1.%d.2/24' % i)
stopsshd()
startsshds(host)
if opt == "cli":
CLI(net)
stopsshd()
net.stop()
def setup(argv):
domains = []
ctlsets = sys.argv[1:]
# the controllers for the optical domain
d0 = OpticalDomain()
domains.append(d0)
ctls = ctlsets[0].split(',')
for i in range (len(ctls)):
d0.addController('c0%s' % i, controller=RemoteController, ip=ctls[i])
# the fabric domains - position 1 for domain 1, 2 for 2 ...
for i in range (1,len(ctlsets)):
f = FabricDomain(i)
domains.append(f)
ctls = ctlsets[i].split(',')
for j in range (len(ctls)):
f.addController('c%s%s' % (i,j), controller=RemoteController, ip=ctls[j])
# make/setup Mininet object
net = Mininet()
for d in domains:
d.build()
d.injectInto(net)
# connect COs to core - sort of hard-wired at this moment
for i in range(1,len(domains)):
an = { "bandwidth": 100000, "optical.type": "cross-connect", "durable": "true" }
net.addLink(domains[i].getTether(), d0.getSwitches('OE%s' % i),
port1=OVS_AP, port2=OE_AP, speed=10000, annotations=an, cls=LINCLink)
# fire everything up
net.build()
map(lambda x: x.start(), domains)
# create a minimal copy of the network for configuring LINC.
cfgnet = Mininet()
cfgnet.switches = net.switches
cfgnet.links = net.links
cfgnet.controllers = d0.getControllers()
LINCSwitch.bootOE(cfgnet, d0.getSwitches())
CLI(net)
net.stop()
LINCSwitch.shutdownOE()
def simpleTest():
topo = Node45Topo()
net = Mininet(topo, link=TCLink, autoStaticArp=True) #主要类来创建和管理网络
mycontroller = RemoteController("c0", ip="127.0.0.1", port=6633) #创建远程控制器
net.controllers = [mycontroller]
net.start() #启动您的拓扑网络
net_start_time = time.time()
print "***Dumping host connections"
# dumpNodeConnections(net.hosts) #转存文件连接
# print "Testing network connectivity"
# net.pingAll() #所有节点彼此测试互连
try:
for i in range(1, gl.switchNum + 1):
thread.start_new_thread( lru.remo, ('s%d' % i, ) )
except:
print "Error: unable to start thread"
path = "/home/ubuntu/cppalg/output/demandAndPath.txt"
if os.path.exists(path) == True:
try_time = 100
print(os.path.getmtime(path))
print(net_start_time)
while os.path.getmtime(path) < net_start_time:
try_time = try_time - 1
if try_time < 0:
break
if os.path.getmtime(path) > net_start_time:
with open(path, "r") as f:
lines = f.read().split('\n')
for perline in lines:
# 读取第二个和最后一个数，如果不相等，iperfudp
if perline != "":
line = perline.split()
print(line)
if len(line) > 1 and line[1] != line[-1]:
print("Log iperf UDP for: ", line[1], line[-1])
hs, hd = net.get('h%s'%line[1], 'h%s'%line[-1])
net.iperf( (hs, hd), 'UDP', '%sM'%line[0], None, 3, 5566 )
CLI(net) #进入mininet>提示符
net.stop() #停止网络
from mininet.net import Mininet
from mininet.node import RemoteController, OVSSwitch
from mininet.link import TCLink
from time import sleep
if __name__ == "__main__":
default_hs_bw = 10
default_ss_bw = 10
default_gs_bw = 10
default_ng_bw = 10
setLogLevel("info")
net = Mininet(switch=OVSSwitch, listenPort = 6633, ipBase='191.0.0.1/4')
mycontroller = RemoteController("RemoteController")
net.controllers = [mycontroller]
net.nameToNode["RemoteController"] = mycontroller
# host
# tenant 1
host1 = net.addHost('h1', ip="191.168.1.1", mac='00:00:00:00:00:01')
host2 = net.addHost('h2', ip="191.168.1.2", mac='00:00:00:00:00:02')
host3 = net.addHost('h3', ip="191.168.1.3", mac='00:00:00:00:00:03')
host4 = net.addHost('h4', ip="191.168.1.4", mac='00:00:00:00:00:04')
host5 = net.addHost('h5', ip="191.168.1.4", mac='00:00:00:00:00:05')
host6 = net.addHost('h6', ip="191.168.1.6", mac='00:00:00:00:00:09')
# tenant 2
host7 = net.addHost('h7', ip="191.168.1.1", mac='00:00:00:00:00:0A')
host8 = net.addHost('h8', ip="191.168.1.2", mac='00:00:00:00:00:0B')
host9 = net.addHost('h9', ip="191.168.1.3", mac='00:00:00:00:00:0C')
from mininet.node import OVSSwitch, Controller, RemoteController
from mininet.topolib import TreeTopo
from mininet.log import setLogLevel
from mininet.cli import CLI
setLogLevel('info')
# Two local and one "external" controller (which is actually c0)
# Ignore the warning message that the remote isn't (yet) running
c0 = Controller('c0')
c1 = Controller('c1')
c2 = RemoteController('c2', ip='127.0.0.1')
cmap = {'s1': c0, 's2': c1, 's3': c2}
class MultiSwitch(OVSSwitch):
"Custom Switch() subclass that connects to different controllers"
def start(self, controllers):
return OVSSwitch.start(self, [cmap[self.name]])
topo = TreeTopo(depth=2, fanout=2)
net = Mininet(topo=topo, switch=MultiSwitch, build=False)
net.controllers = [c0, c1]
net.build()
net.start()
CLI(net)
net.stop()
def setup(argv):
domains = []
ctlsets = sys.argv[1:]
# the controllers for the optical domain
d0 = OpticalDomain()
domains.append(d0)
ctls = ctlsets[0].split(',')
for i in range (len(ctls)):
d0.addController('c0%s' % i, controller=RemoteController, ip=ctls[i])
# the fabric domains - position 1 for domain 1, 2 for 2 ...
for i in range (1,len(ctlsets)):
f = FabricDomain(i)
domains.append(f)
ctls = ctlsets[i].split(',')
for j in range (len(ctls)):
f.addController('c%s%s' % (i,j), controller=RemoteController, ip=ctls[j])
# netcfg for each domains
# Note: Separate netcfg for domain0 is created in opticalUtils
domainCfgs = []
for i in range (0,len(ctlsets)):
cfg = {}
cfg['devices'] = {}
cfg['ports'] = {}
cfg['links'] = {}
domainCfgs.append(cfg)
# make/setup Mininet object
net = Mininet()
for d in domains:
d.build()
d.injectInto(net)
# connect COs to core - sort of hard-wired at this moment
# adding cross-connect links
for i in range(1,len(domains)):
# add 10 cross-connect links between domains
xcPortNo=2
ochPortNo=10
for j in range(0, 10):
an = { "bandwidth": 10, "durable": "true" }
net.addLink(domains[i].getTether(), d0.getSwitches('OE%s' % i),
port1=xcPortNo+j, port2=ochPortNo+j, speed=10000, annotations=an, cls=LINCLink)
xcId = 'of:' + domains[i].getSwitches(name=domains[i].getTether()).dpid + '/' + str(xcPortNo+j)
ochId = 'of:' + d0.getSwitches('OE%s' % i).dpid + '/' + str(ochPortNo+j)
domainCfgs[i]['ports'][xcId] = {'cross-connect': {'remote': ochId}}
# fire everything up
net.build()
map(lambda x: x.start(), domains)
# create a minimal copy of the network for configuring LINC.
cfgnet = Mininet()
cfgnet.switches = net.switches
cfgnet.links = net.links
cfgnet.controllers = d0.getControllers()
LINCSwitch.bootOE(cfgnet, d0.getSwitches())
# send netcfg json to each CO-ONOS
for i in range(1,len(domains)):
info('*** Pushing Topology.json to CO-ONOS %d\n' % i)
filename = 'Topology%d.json' % i
with open(filename, 'w') as outfile:
json.dump(domainCfgs[i], outfile, indent=4, separators=(',', ': '))
output = quietRun('%s/tools/test/bin/onos-netcfg %s %s &'\
% (LINCSwitch.onosDir,
domains[i].getControllers()[0].ip,
filename), shell=True)
# successful output contains the two characters '{}'
# if there is more output than this, there is an issue
if output.strip('{}'):
warn('***WARNING: Could not push topology file to ONOS: %s\n' % output)
CLI(net)
net.stop()
LINCSwitch.shutdownOE()
info( '* Creating Control Network\n' ) ctopo = ControlNetwork( n=4, dataController=DataController ) cnet = Mininet( topo=ctopo, ipBase='192.168.123.0/24', build=False ) info( '* Adding Control Network Controller\n') cnet.addController( 'cc0' ) info( '* Starting Control Network\n') cnet.build() cnet.start() dataControllers = cnet.hosts[ : -1 ] # ignore 'root' node info( '* Creating Data Network\n' ) topo = TreeTopo( depth=2, fanout=2 ) # UserSwitch so we can easily test failover net = Mininet( topo=topo, switch=UserSwitch, build=False ) info( '* Adding Controllers to Data Network\n' ) net.controllers = dataControllers net.build() info( '* Starting Data Network\n') net.start() CLI2( net, cnet=cnet ) info( '* Stopping Data Network\n' ) net.stop() info( '* Stopping Control Network\n' ) cnet.stop()
"""
info("****creating network****\n")
net = Mininet(listenPort = 6633)
mycontroller = RemoteController("muziController", ip = "127.0.0.1")
switch_1 = net.addSwitch('s1')
switch_2 = net.addSwitch('s2')
switch_3 = net.addSwitch('s3')
#switch_4 = net.addSwitch('s4')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
net.controllers = [mycontroller]
#_intf_1 = Intf(intfName_1, node = switch_1, port = 1)
net.addLink(switch_1, switch_2, 2, 1)# node1, node2, port1, port2
net.addLink(switch_2, switch_3, 2, 1)
#net.addLink(switch_1, switch_4, 3, 1)
net.addLink(switch_1, h1, 1)
net.addLink(switch_2, h2, 2)
#_intf_3 = Intf(intfName_3, node = switch_3, port = 2)
#net.addLink(switch_4, switch_3, 2, 3)
#info("*****Adding hardware interface ", intfName_1, "to switch:" ,switch_1.name, '\n')
#!/usr/bin/python
"""
Create a network where different switches are connected to
different controllers, by creating a custom Switch() subclass.
"""
from mininet.net import Mininet
from mininet.node import OVSSwitch, Controller
from mininet.topolib import TreeTopo
from mininet.cli import CLI
c0 = Controller( 'c0' )
c1 = Controller( 'c1', ip='127.0.0.2' )
cmap = { 's1': c0, 's2': c1, 's3': c1 }
class MultiSwitch( OVSSwitch ):
"Custom Switch() subclass that connects to different controllers"
def start( self, controllers ):
return OVSSwitch.start( self, [ cmap[ self.name ] ] )
topo = TreeTopo( depth=2, fanout=2 )
net = Mininet( topo=topo, switch=MultiSwitch, build=False )
net.controllers = [ c0, c1 ]
net.build()
net.start()
CLI( net )
net.stop()
leftTopSwitch = net.addSwitch('s3')
rightTopSwitch = net.addSwitch('s4')
# Add links
# set link speeds to 10Mbit/s
linkopts = dict(bw=10)
net.addLink(leftHost1, leftSwitch, **linkopts )
net.addLink(leftHost2, leftSwitch, **linkopts )
net.addLink(rightHost1, rightSwitch, **linkopts )
net.addLink(rightHost2, rightSwitch, **linkopts )
net.addLink(leftSwitch, leftTopSwitch, **linkopts )
net.addLink(leftSwitch, rightTopSwitch,**linkopts )
net.addLink(rightSwitch,leftTopSwitch, **linkopts )
net.addLink(rightSwitch,rightTopSwitch,**linkopts )
# Start
net.controllers = [ c ]
net.build()
net.start()
# Enable sFlow
# 1-in-10 sampling rate for 10Mbit/s links is proportional to 1-in-1000 for 1G
# see http://blog.sflow.com/2013/02/sdn-and-large-flows.html
quietRun('ovs-vsctl -- --id=@sflow create sflow agent=eth0 target=127.0.0.1 sampling=10 polling=20 -- -- set bridge s1 sflow=@sflow -- set bridge s2 sflow=@sflow -- set bridge s3 sflow=@sflow -- set bridge s4 sflow=@sflow')
# CLI
CLI( net )
# Clean up
net.stop()
rightTopSwitch = net.addSwitch('s4')
# Add links
# set link speeds to 10Mbit/s
linkopts = dict(bw=10)
net.addLink(leftHost1, leftSwitch, **linkopts)
net.addLink(leftHost2, leftSwitch, **linkopts)
net.addLink(rightHost1, rightSwitch, **linkopts)
net.addLink(rightHost2, rightSwitch, **linkopts)
net.addLink(leftSwitch, leftTopSwitch, **linkopts)
net.addLink(leftSwitch, rightTopSwitch, **linkopts)
net.addLink(rightSwitch, leftTopSwitch, **linkopts)
net.addLink(rightSwitch, rightTopSwitch, **linkopts)
# Start
net.controllers = [c]
net.build()
net.start()
# Enable sFlow
# 1-in-10 sampling rate for 10Mbit/s links is proportional to 1-in-1000 for 1G
# see http://blog.sflow.com/2013/02/sdn-and-large-flows.html
quietRun(
'ovs-vsctl -- --id=@sflow create sflow agent=eth0 target=127.0.0.1 sampling=10 polling=20 -- -- set bridge s1 sflow=@sflow -- set bridge s2 sflow=@sflow -- set bridge s3 sflow=@sflow -- set bridge s4 sflow=@sflow'
)
# CLI
CLI(net)
# Clean up
net.stop()
def setup(argv):
domains = []
ctlsets = sys.argv[1:]
# the controllers for the optical domain
d0 = OpticalDomain()
f0 = FabricDomain(1)
f1 = FabricDomain(2)
domains.extend([d0, f0, f1])
for i in range(len(domains)):
ctls = ctlsets[i].split(',')
for c in range(len(ctls)):
domains[i].addController('c%s%s' % (i, c),
controller=RemoteController,
ip=ctls[c])
# netcfg for each domains
# Note: Separate netcfg for domain0 is created in opticalUtils
domainCfgs = []
for i in range(0, len(ctlsets)):
cfg = {}
cfg['devices'] = {}
cfg['ports'] = {}
cfg['links'] = {}
domainCfgs.append(cfg)
# make/setup Mininet object
net = Mininet()
for d in domains:
d.build()
d.injectInto(net)
# connect COs to core - sort of hard-wired at this moment
# adding cross-connect links
for i in range(1, len(domains)):
# add 10 cross-connect links between domains
xcPortNo = 2
ochPortNo = 10
an = {"bandwidth": 10, "durable": "true"}
net.addLink(domains[i].getTether(),
d0.getSwitches('OE%s' % i),
port1=xcPortNo,
port2=ochPortNo,
speed=10000,
annotations=an,
cls=LINCLink)
xcId = 'of:' + domains[i].getSwitches(
name=domains[i].getTether()).dpid + '/' + str(xcPortNo)
ochId = 'of:' + d0.getSwitches('OE%s' % i).dpid + '/' + str(ochPortNo)
domainCfgs[i]['ports'][xcId] = {'cross-connect': {'remote': ochId}}
# fire everything up
net.build()
map(lambda x: x.start(), domains)
# create a minimal copy of the network for configuring LINC.
cfgnet = Mininet()
cfgnet.switches = net.switches
cfgnet.links = net.links
cfgnet.controllers = d0.getControllers()
LINCSwitch.bootOE(cfgnet, d0.getSwitches())
# send netcfg json to each CO-ONOS
for i in range(1, len(domains)):
info('*** Pushing Topology.json to CO-ONOS %d\n' % i)
filename = 'Topology%d.json' % i
with open(filename, 'w') as outfile:
json.dump(domainCfgs[i], outfile, indent=4, separators=(',', ': '))
output = quietRun('%s/tools/test/bin/onos-netcfg %s %s &'\
% (LINCSwitch.onosDir,
domains[i].getControllers()[0].ip,
filename), shell=True)
# successful output contains the two characters '{}'
# if there is more output than this, there is an issue
if output.strip('{}'):
warn('***WARNING: Could not push topology file to ONOS: %s\n' %
output)
CLI(net)
net.stop()
LINCSwitch.shutdownOE()
info('* Creating Control Network\n')
ctopo = ControlNetwork(n=4, dataController=DataController)
cnet = Mininet(topo=ctopo, ipBase='192.168.123.0/24', build=False)
info('* Adding Control Network Controller\n')
cnet.addController('cc0')
info('* Starting Control Network\n')
cnet.build()
cnet.start()
dataControllers = cnet.hosts[:-1] # ignore 'root' node
info('* Creating Data Network\n')
topo = TreeTopo(depth=2, fanout=2)
# UserSwitch so we can easily test failover
net = Mininet(topo=topo, switch=UserSwitch, build=False)
info('* Adding Controllers to Data Network\n')
net.controllers = dataControllers
net.build()
info('* Starting Data Network\n')
net.start()
CLI2(net, cnet=cnet)
info('* Stopping Data Network\n')
net.stop()
info('* Stopping Control Network\n')
# dataControllers have already been stopped
cnet.hosts = list(set(cnet.hosts) - set(dataControllers))
cnet.stop()
