def cfsInfo( self, f):
"Internal method: return parameters for CFS bandwidth"
pstr, qstr = 'cfs_period_us', 'cfs_quota_us'
# CFS uses wall clock time for period and CPU time for quota.
quota = int( self.period_us * f * numCores() )
period = self.period_us
if f > 0 and quota < 1000:
debug( '(cfsInfo: increasing default period) ' )
quota = 1000
period = int( quota / f / numCores() )
return pstr, qstr, period, quota
def parseOptions():
"Parse command line options"
parser = OptionParser()
parser.add_option('-o',
'--output',
default=True,
action='store_true',
help='write output to file?')
parser.add_option('-t',
'--time',
type='int',
default=10,
help='cpu-stress time interval')
parser.add_option('-r',
'--runs',
type='int',
default=1,
help='Runs for each topo')
parser.add_option('-c',
'--counts',
action='callback',
callback=intListCallback,
default=[2, 4],
type='string',
help='nodes in the network, e.g. 2,4')
parser.add_option('-u',
'--utils',
action='callback',
callback=floatListCallback,
default=[0.5, 0.7, .9],
type='string',
help='target machine utilizations, e.g. .5,.7,.9')
parser.add_option('-m',
'--machine',
default='local',
type='string',
help='name of machine')
parser.add_option('-e',
'--experiment',
default='',
type='string',
help='name of experiment')
parser.add_option('-s',
'--static',
default=False,
action='store_true',
help='statically allocate CPU to each host')
parser.add_option('-b',
'--bwsched',
dest='sched',
default='cfs',
help='bandwidth scheduler: cfs (default) | rt | none')
options, args = parser.parse_args()
if options.sched not in ['cfs', 'rt', 'none']:
print "CPU bandwidth scheduler should be either 'cfs' or 'rt' or 'none'."
parser.print_help()
exit(1)
options.host = quietRun('hostname').strip()
options.cores = numCores()
return options, args
def __init__( self, topo=None, switch=OVSKernelSwitch, host=Host,
controller=DefaultController, link=Link, intf=Intf,
build=True, xterms=False, cleanup=False, ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False, autoStaticArp=False, autoPinCpus=False,
listenPort=None, waitConnected=False, startup=None ):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse( self.ipBase )
hostIP = ( 0xffffffff >> self.prefixLen ) & self.ipBaseNum
# Start for address allocation
self.nextIP = hostIP if hostIP > 0 else 1
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.waitConn = waitConnected
self.startup = startup
self.hosts = []
self.switches = []
self.controllers = []
self.links = []
self.nameToNode = {} # name to Node (Host/Switch) objects
self.terms = [] # list of spawned xterm processes
Mininet.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
def __init__( self, topo=None, switch=OVSKernelSwitch, host=Host,
controller=DefaultController, link=Link, intf=Intf,
build=True, xterms=False, cleanup=False, ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False, autoStaticArp=False, autoPinCpus=False,
listenPort=None, waitConnected=False ):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse( self.ipBase )
hostIP = ( 0xffffffff >> self.prefixLen ) & self.ipBaseNum
# Start for address allocation
self.nextIP = hostIP if hostIP > 0 else 1
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.waitConn = waitConnected
self.hosts = []
self.switches = []
self.controllers = []
self.links = []
self.nameToNode = {} # name to Node (Host/Switch) objects
self.terms = [] # list of spawned xterm processes
Mininet.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
def parseOptions():
"Parse command line options"
parser = OptionParser()
parser.add_option( '-o', '--output',
default=True,
action='store_true',
help='write output to file?' )
parser.add_option( '-t', '--time',
type='int',
default=10,
help='cpu-stress time interval' )
parser.add_option( '-r', '--runs',
type='int',
default=1,
help='Runs for each topo' )
parser.add_option( '-c', '--counts',
action='callback',
callback=intListCallback,
default=[ 2, 4 ],
type='string',
help='nodes in the network, e.g. 2,4' )
parser.add_option( '-u', '--utils',
action='callback',
callback=floatListCallback,
default=[ 0.5, 0.7, .9 ],
type='string',
help='target machine utilizations, e.g. .5,.7,.9' )
parser.add_option( '-m', '--machine',
default='local',
type='string',
help='name of machine' )
parser.add_option( '-e', '--experiment',
default='',
type='string',
help='name of experiment' )
parser.add_option( '-s', '--static',
default=False,
action='store_true',
help='statically allocate CPU to each host' )
parser.add_option( '-b', '--bwsched', dest='sched',
default='cfs',
help='bandwidth scheduler: cfs (default) | rt | none' )
options, args = parser.parse_args()
if options.sched not in [ 'cfs', 'rt', 'none' ]:
print "CPU bandwidth scheduler should be either 'cfs' or 'rt' or 'none'."
parser.print_help()
exit( 1 )
options.host = quietRun( 'hostname' ).strip()
options.cores = numCores()
return options, args
def startRamcloud( self, cpu=.6 ):
"""Start Ramcloud
cpu: CPU usage limit (in seconds/s)"""
# Create a cgroup so Ramcloud doesn't eat all of our CPU
ramcloud = CPULimitedHost( 'ramcloud', inNamespace=False, period_us=5000 )
ramcloud.setCPUFrac( cpu / numCores() )
info( '\n' )
ramcloud.cmd( 'export PATH=%s:$PATH' % self.onosDir )
ramcloud.cmd( 'export ONOS_LOGDIR=%s' % self.logDir )
for daemon in 'coord', 'server':
ramcloud.cmd( 'onos.sh rc-%s start' % daemon )
pid = self.waitStart( 'Ramcloud %s' % daemon, 'obj.master/' + daemon )
self.waitNetstat( pid )
status = self.cmd( 'onos.sh rc-%s.sh status' % daemon )
if 'running' not in status:
raise Exception( 'Ramcloud %s startup failed: ' % daemon + status )
self.ramcloud = ramcloud
def appendResults(net, outfile, n, cpu):
result = [''] * n
cmd = [None] * n # Command objects for CPU stressers
monitor = [None] * n
monitor_outfile = [None] * n # Filenames
cpu_log = [None] * n
info("Starting CPU stressors\n")
# Start cpu-stressers
for i in xrange(0, n):
server = net.hosts[i]
# run for 120 secs extra; terminated below
scmd = '%s %d %d' % (CPUSTRESS, opts.time + 120, 0)
server.cmd(scmd + '&')
monitor_outfile[i] = '/tmp/%s_cpu.out' % server.name
sleep(1)
info("Starting CPU monitor\n")
# Start cpu monitor
startTime = int(time())
cpumon_length = opts.time
# Was always one second.
# Now we will try the following: since cpuacct is adjusted every
# 10 ms, we should try to make sure that each process makes some
# progress each time interval.
# for a minimum cpu time of 20 ms,
# the interval should be 20 ms * n / (cpu% * numCores())
cpumon_interval = 1.0
cpumon_min = .020 / cpu / numCores()
if cpumon_interval < cpumon_min:
cpumon_interval = cpumon_min
print "Adjusting cpumon_interval to %.2f seconds" % cpumon_interval
hosts = ' '.join([h.name for h in net.hosts])
stats = quietRun('%s %d %f %s' %
(CPUMONITOR, cpumon_length, cpumon_interval, hosts))
info("Terminating processes\n")
quietRun('pkill -9 -f ' + CPUSTRESS)
# parse cpu monitor results
info("Parsing CPU monitor results\n")
cpu_usage = parse_cpuacct(stats, cpulimit=cpu)
appendOutput(outfile, cpu_usage)
def run(sched='cfs', cpu=.05, fastbw=100, lanbw=10, reduce=0):
"Run test"
quietRun('pkill -9 iperf')
topo = EmulabTopo(testbw=fastbw, lanbw=lanbw, cpu=cpu)
net = Mininet(topo,
host=custom(Host,
sched=sched,
period_us=10000,
isIsolated=(sched is not 'none')))
net.start()
# Set up routes for extra link
print[h.name for h in net.hosts]
nodea, nodeb = net.nameToNode['node-A'], net.nameToNode['node-B']
nodea.cmdPrint('ifconfig ' + nodea.intfs[1] + ' up')
nodeb.cmdPrint('ifconfig ' + nodeb.intfs[1] + ' up')
nodea.setIP(nodea.intfs[1], '10.0.0.11')
nodeb.setIP(nodeb.intfs[1], '10.0.0.12')
nodea.cmdPrint('route add -host 10.0.0.12 dev ' + nodea.intfs[1])
nodeb.cmdPrint('route add -host 10.0.0.11 dev ' + nodeb.intfs[1])
nodea.cmdPrint('route del -net 10.0.0.0/8')
nodeb.cmdPrint('route del -net 10.0.0.0/8')
nodea.cmdPrint('route -n')
nodeb.cmdPrint('route -n')
print "*** starting sshd servers"
for host in net.hosts:
host.name, host.IP()
host.cmdPrint('/usr/sbin/sshd')
print "*** checking ping and ssh connectivity"
net.pingAll()
print "*** fixing local route on nodea"
nodea.cmdPrint("ifconfig lo up")
nodea.cmdPrint("ping -c1 " + nodea.IP())
for suffix in 'ABCDEFGHIJ':
nodea.cmdPrint('ssh node-' + suffix + ' hostname')
print "*** running test"
host = quietRun('hostname').strip()
cores = numCores()
outfile = "emulab-%s-%sp-%s-%s-%s.out" % (host, cores, sched, cpu, fastbw)
nodea.cmdPrint("./emulab-test.sh 2>&1 | tee %s; echo done" % outfile)
print "stopping sshd servers"
for host in net.hosts:
host.cmdPrint('pkill -9 -f /usr/sbin/sshd')
net.stop()
def appendResults(net, outfile, n, cpu):
result = [''] * n
cmd = [None] * n # Command objects for CPU stressers
monitor = [None]*n
monitor_outfile = [None]*n # Filenames
cpu_log = [None]*n
info ("Starting CPU stressors\n")
# Start cpu-stressers
for i in xrange(0, n):
server = net.hosts[i]
# run for 120 secs extra; terminated below
scmd = '%s %d %d' % (CPUSTRESS, opts.time+120, 0)
server.cmd(scmd + '&')
monitor_outfile[i] = '/tmp/%s_cpu.out' % server.name
sleep(1)
info ("Starting CPU monitor\n")
# Start cpu monitor
startTime = int(time())
cpumon_length = opts.time
# Was always one second.
# Now we will try the following: since cpuacct is adjusted every
# 10 ms, we should try to make sure that each process makes some
# progress each time interval.
# for a minimum cpu time of 20 ms,
# the interval should be 20 ms * n / (cpu% * numCores())
cpumon_interval = 1.0
cpumon_min = .020 / cpu / numCores()
if cpumon_interval < cpumon_min:
cpumon_interval = cpumon_min
print "Adjusting cpumon_interval to %.2f seconds" % cpumon_interval
hosts = ' '.join([h.name for h in net.hosts])
stats = quietRun('%s %d %f %s' % (CPUMONITOR, cpumon_length, cpumon_interval, hosts))
info ("Terminating processes\n")
quietRun( 'pkill -9 -f ' + CPUSTRESS )
# parse cpu monitor results
info ("Parsing CPU monitor results\n")
cpu_usage = parse_cpuacct(stats, cpulimit=cpu)
appendOutput(outfile, cpu_usage)
def startRamcloud(self, cpu=.6):
"""Start Ramcloud
cpu: CPU usage limit (in seconds/s)"""
# Create a cgroup so Ramcloud doesn't eat all of our CPU
ramcloud = CPULimitedHost('ramcloud',
inNamespace=False,
period_us=5000)
ramcloud.setCPUFrac(cpu / numCores())
info('\n')
ramcloud.cmd('export PATH=%s:$PATH' % self.onosDir)
ramcloud.cmd('export ONOS_LOGDIR=%s' % self.logDir)
for daemon in 'coord', 'server':
ramcloud.cmd('onos.sh rc-%s start' % daemon)
pid = self.waitStart('Ramcloud %s' % daemon,
'obj.master/' + daemon)
self.waitNetstat(pid)
status = self.cmd('onos.sh rc-%s.sh status' % daemon)
if 'running' not in status:
raise Exception('Ramcloud %s startup failed: ' % daemon +
status)
self.ramcloud = ramcloud
def __init__(self,
topo=None,
switch=OVSKernelSwitch,
host=Host,
controller=DefaultController,
link=Link,
intf=Intf,
build=True,
xterms=False,
cleanup=False,
ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False,
autoStaticArp=False,
autoPinCpus=False,
listenPort=None,
waitConnected=False,
interfaceID=3,
ssid="my_ssid",
mode="g",
channel="1",
wirelessRadios=0):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.baseStation = switch
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse(self.ipBase)
self.nextIP = 1 # start for address allocation
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.waitConn = waitConnected
self.wirelessdeviceControl = []
self.wirelessifaceControl = []
self.nextIface = 1
self.baseStationName = []
self.stationName = []
self.interfaceID = interfaceID
self.ssid = ssid
self.mode = mode
self.channel = channel
self.wirelessRadios = wirelessRadios
self.isWireless = Node.isWireless
self.hosts = []
self.switches = []
self.baseStations = []
self.controllers = []
self.links = []
self.nameToNode = {} # name to Node (Host/Switch) objects
self.terms = [] # list of spawned xterm processes
Mininet.init() # Initialize Mininet if necessary
if (Node.isWireless == True or self.wirelessRadios != 0):
Node.isWireless = True
module(self.wirelessRadios,
Node.isWireless) #Initatilize WiFi Module
self.built = False
if topo and build:
self.build()
def __init__( self, topo=None, switch=OVSKernelSwitch,
legacySwitch=LegacySwitch, hostInterface=HostInterface,
legacyRouter=QuaggaRouter,
transitPortalRouter=TransitPortalRouter,
host=Host, controller=Controller, link=Link, intf=Intf,
build=True, xterms=False, cleanup=False, ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False, autoStaticArp=False, autoPinCpus=False,
listenPort=None, bridgeNum=0, defaultHostInterfaceBind='eth0'):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.legacySwitch = legacySwitch
self.hostInterface = hostInterface
self.legacyRouter = legacyRouter
self.transitPortalRouter = transitPortalRouter
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse( self.ipBase )
self.nextIP = 1 # start for address allocation
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.bridgeNum = bridgeNum
self.defaultHostInterfaceBind = defaultHostInterfaceBind
self.hosts = []
self.switches = []
self.legacySwitches = []
self.hostInterfaces = []
self.legacyRouters = []
self.transitPortalRouters = []
self.controllers = []
self.nameToNode = {} # name to Node (Host/Switch/hostInterface/legacy(Router,Switch)) objects
self.physicalAdaptersBridged = [] # physical adapters connected to a (any) bridge
self.bridgeInterfaces = [] # instantiated bridges
self.terms = [] # list of spawned xterm processes
Mininet.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
def parseOptions():
"Parse command line options"
parser = OptionParser()
parser.add_option('-o',
'--output',
dest='outfile',
default=None,
help='write output to file')
parser.add_option('-t',
'--time',
dest='time',
type='int',
default=10,
help='select cpu-stress time interval')
parser.add_option('-r',
'--runs',
dest='runs',
type='int',
default=1,
help='No. of runs for each topo')
parser.add_option('-u',
'--util',
dest='cpu',
type='float',
default=.5,
help='fraction of entire system to use (.5)')
parser.add_option('-i',
'--bwinterval',
dest='period',
type='int',
default=100000,
help='bw enforcement interval in microseconds')
parser.add_option('-c',
'--counts',
dest='counts',
action='callback',
callback=intListCallback,
default=[1],
type='string',
help='specify pair counts, e.g. 10,20,40')
# Disabled until we fix for RT:
# parser.add_option( '-n', '--numprocs', dest='numprocs',
# type='int', default=1, help='no. of cpu-stress processes in each host' )
parser.add_option('-s',
'--static',
dest='static',
default=False,
action='store_true',
help='statically allocate CPU to each host')
parser.add_option('-b',
'--bwsched',
dest='sched',
default='cfs',
help='bandwidth scheduler: cfs (default) | rt | none')
(options, args) = parser.parse_args()
if options.sched not in ['cfs', 'rt', 'none']:
print "CPU bandwidth scheduler should be 'cfs' or 'rt' or 'none'."
parser.print_help()
exit(1)
options.host = quietRun('hostname').strip()
options.cores = numCores()
# Limited to 1 until we fix for RT:
options.numprocs = 1
return options, args
def __init__(self,
topo=None,
switch=OVSKernelSwitch,
accessPoint=OVSKernelAP,
host=Host,
station=Station,
car=Car,
controller=DefaultController,
link=Link,
intf=Intf,
build=True,
xterms=False,
ipBase='2001:0:0:0:0:0:0:0/64',
inNamespace=False,
autoSetMacs=False,
autoStaticArp=False,
autoPinCpus=False,
listenPort=None,
waitConnected=False,
ssid="new-ssid",
mode="g",
channel="1",
enable_wmediumd=False,
enable_interference=False,
enable_spec_prob_link=False,
enable_error_prob=False,
fading_coefficient=0,
disableAutoAssociation=False,
driver='nl80211',
autoSetPositions=False,
configureWiFiDirect=False,
configure4addr=False,
defaultGraph=False,
noise_threshold=-91,
cca_threshold=-90,
rec_rssi=False):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.host = host
self.station = station
self.accessPoint = accessPoint
self.car = car
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse(self.ipBase)
self.nextIP = 1 # start for address allocation
self.nextPosition = 1 # start for position allocation
self.repetitions = 1 # mobility: number of repetitions
self.inNamespace = inNamespace
self.xterms = xterms
self.autoSetMacs = autoSetMacs
self.autoSetPositions = autoSetPositions
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.waitConn = waitConnected
self.routing = ''
self.ssid = ssid
self.mode = mode
self.wmediumd_mode = ''
self.channel = channel
self.nameToNode = {} # name to Node (Host/Switch) objects
self.aps = []
self.controllers = []
self.hosts = []
self.links = []
self.cars = []
self.carsSW = []
self.carsSTA = []
self.switches = []
self.stations = []
self.sixLP = []
self.terms = [] # list of spawned xterm processes
self.driver = driver
self.disableAutoAssociation = disableAutoAssociation
self.mobilityKwargs = ''
self.isMobilityModel = False
self.isMobility = False
self.ppm_is_set = False
self.alreadyPlotted = False
self.DRAW = False
self.ifb = False
self.isVanet = False
self.noise_threshold = noise_threshold
self.cca_threshold = cca_threshold
self.configureWiFiDirect = configureWiFiDirect
self.configure4addr = configure4addr
self.enable_wmediumd = enable_wmediumd
self.enable_error_prob = enable_error_prob
self.fading_coefficient = fading_coefficient
self.enable_interference = enable_interference
self.enable_spec_prob_link = enable_spec_prob_link
self.mobilityparam = dict()
self.AC = ''
self.alternativeModule = ''
self.rec_rssi = rec_rssi
self.plot = plot2d
self.n_wpans = 0
self.n_radios = 0
self.min_x = 0
self.min_y = 0
self.min_z = 0
self.max_x = 0
self.max_y = 0
self.max_z = 0
self.nroads = 0
self.connections = {}
self.wlinks = []
Mininet_sixLoWPAN.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
def parse_cpuacct(stats, cpulimit=None):
'''Return the following:
cpu_usage[n], with each element a dict{'xvals':[], 'cpuvals':[]}
cpu_stat[n] with each element a dict{'xvals':[], 'uservals': [], 'systemvals': []}
'''
cpu_usage = {}
rec_re = re.compile(r'cgroup (\S+),time (\d+.\d+)')
spaces = re.compile('\s+')
host = None
time = None
# Report CPU limit in CPU seconds rather than as a fraction (!)
cores = numCores()
cpulimit *= cores
for line in stats.split('\n'):
m = rec_re.match(line)
if m:
host = m.group(1)
time = float(m.group(2))
else:
line = spaces.sub(' ', line).split()
if 'usage' in line:
cpuval = float(line[1])
if host is None or time is None:
continue
if host not in cpu_usage:
cpu_usage[host] = {
'xvals': [],
'cpuvals': [],
'uservals': [],
'systemvals': [],
'percpuvals': [],
'cpulimit': cpulimit
}
cpu_usage[host]['xvals'].append(time)
cpu_usage[host]['cpuvals'].append(cpuval)
elif 'user' in line:
userval = float(line[1])
if host is None or time is None:
continue
cpu_usage[host]['uservals'].append(userval)
elif 'system' in line:
systemval = float(line[1])
if host is None or time is None:
continue
cpu_usage[host]['systemvals'].append(systemval)
elif 'percpu' in line:
percpuval = map(float, line[1:])
if host is None or time is None:
continue
cpu_usage[host]['percpuvals'].append(percpuval)
# Round results to reported (though not necessarily actual) accuracy (ns, HZ)
def r9(x):
return round(x, 9)
def r2(x):
return round(x, 2)
for k, v in cpu_usage.iteritems():
intervals = diff_list(v['xvals'])
v['xvals'] = [r9(x - v['xvals'][0]) for x in v['xvals']]
v['xvals'].pop(0)
v['cpuvals'] = [
r9(1e-9 * x / y)
for x, y in zip(diff_list(v['cpuvals']), intervals)
]
v['uservals'] = [
r2(1e-2 * x / y)
for x, y in zip(diff_list(v['uservals']), intervals)
]
v['systemvals'] = [
r2(1e-2 * x / y)
for x, y in zip(diff_list(v['systemvals']), intervals)
]
v['percpuvals'] = [[
r9(1e-9 * x / y) for x in l
] for l, y in zip(double_diff_list(v['percpuvals']), intervals)]
v['cpucount'] = cores
return [cpu_usage[k] for k in sorted(cpu_usage.keys(), key=natural)]
nodea.cmdPrint('route -n')
nodeb.cmdPrint('route -n')
print "*** starting sshd servers"
for host in net.hosts:
host.name, host.IP()
host.cmdPrint('/usr/sbin/sshd')
print "*** checking ping and ssh connectivity"
net.pingAll()
print "*** fixing local route on nodea"
nodea.cmdPrint("ifconfig lo up")
nodea.cmdPrint("ping -c1 " + nodea.IP() )
for suffix in 'ABCDEFGHIJ':
nodea.cmdPrint( 'ssh node-' + suffix + ' hostname')
print "*** running test"
host = quietRun('hostname').strip()
cores = numCores()
outfile = "emulab-%s-%sp-%s-%s-%s.out" % ( host, cores, sched, cpu, fastbw)
nodea.cmdPrint("./emulab-test.sh 2>&1 | tee %s; echo done" % outfile)
print "stopping sshd servers"
for host in net.hosts:
host.cmdPrint('pkill -9 -f /usr/sbin/sshd')
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
targetbw=200
targetcpu=.09
run( sched='cfs', cpu=targetcpu, fastbw=targetbw )
run( sched='cfs', cpu=targetcpu, fastbw=None )
run( sched='none', cpu=None, fastbw=targetbw )
run( sched='none', cpu=None, fastbw=None, lanbw=None )
def __init__(self,
topo=None,
switch=OVSKernelSwitch,
legacySwitch=LegacySwitch,
hostInterface=HostInterface,
legacyRouter=QuaggaRouter,
transitPortalRouter=TransitPortalRouter,
host=Host,
controller=Controller,
link=Link,
intf=Intf,
build=True,
xterms=False,
cleanup=False,
ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False,
autoStaticArp=False,
autoPinCpus=False,
listenPort=None,
bridgeNum=0,
defaultHostInterfaceBind='eth0'):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.legacySwitch = legacySwitch
self.hostInterface = hostInterface
self.legacyRouter = legacyRouter
self.transitPortalRouter = transitPortalRouter
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse(self.ipBase)
self.nextIP = 1 # start for address allocation
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.bridgeNum = bridgeNum
self.defaultHostInterfaceBind = defaultHostInterfaceBind
self.hosts = []
self.switches = []
self.legacySwitches = []
self.hostInterfaces = []
self.legacyRouters = []
self.transitPortalRouters = []
self.controllers = []
self.nameToNode = {
} # name to Node (Host/Switch/hostInterface/legacy(Router,Switch)) objects
self.physicalAdaptersBridged = [
] # physical adapters connected to a (any) bridge
self.bridgeInterfaces = [] # instantiated bridges
self.terms = [] # list of spawned xterm processes
Mininet.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
def CPUIsolationTest(opts):
"Check CPU isolation for various no. of nodes."
cpustress = 'cpu/cpu-stress'
cpumonitor = 'cpu/cpumonitor'
results = []
initOutput(opts.outfile, opts)
for n in opts.counts:
for run in xrange(1, opts.runs + 1):
# divide target utilization across hosts
cpu = opts.cpu / n
print 'Running CPU Test: %d nodes, cpu=%.3f%%, trial no. %d' % (
n, 100.0 * cpu, run)
host = custom(CPUIsolationHost,
cpu=cpu,
sched=opts.sched,
period_us=opts.period)
net = Mininet(topo=CPUIsolationTopo(n),
host=host,
autoPinCpus=opts.static)
net.start()
result = [''] * n
cmd = [None] * opts.numprocs * n
#monitor = [None]*n
#monitor_outfile = [None]*n
#cpu_log = [None]*n
#start the cpu-stressers
for i in xrange(0, n):
server = net.hosts[i]
# scmd = '%s %d %d' % (cpustress, opts.time+10, 0) # run for ten secs extra
scmd = cpustress # run indefinitely!
for j in range(opts.numprocs):
# was: cmd[j*n + i] = server.lxcSendCmd(scmd)
# Using shell for now since lxc-attach is broken for RT
cmd[j * n + i] = server.sendCmd(scmd)
#monitor_outfile[i] = '/tmp/%s_cpu.out' % server.name
#monitor[i] = start_monitor_cpu(server, monitor_outfile[i])
sleep(1)
# start the cpu monitor
startTime = int(time())
cpumon_length = opts.time
# Was always one second.
# Now we want the cpuacct timer to get a 10 ms tick,
# even with minimum quota of 1 ms
cpumon_interval = 1.0
cpumon_min = .011 / (cpu * numCores())
if cpumon_interval < cpumon_min:
cpumon_interval = cpumon_min
print "Adjusting cpumon_interval to %.2f seconds" % cpumon_interval
hosts = ' '.join([h.name for h in net.hosts])
info('*** Running test and monitoring output\n')
cmd = ('%s %d %f %s' %
(cpumonitor, cpumon_length, cpumon_interval, hosts))
stats = quietRun(cmd)
# parse cpu monitor results
cpu_usage = parse_cpuacct(stats, cpulimit=cpu)
#fetch the results
# BL: Ignore this for now to avoid shutdown effects!
if False:
for i in xrange(0, n):
server = net.hosts[i]
for j in range(opts.numprocs):
# was: c = cmd[j*n + i].waitOutput()
c = server.waitOutput()
#stop_monitor_cpu(server)
# sleep(0.5)
#cpu_log[i] = parse_cpu_log(monitor_outfile[i])
#quietRun('rm -rf %s' % monitor_outfile[i])
try:
result[i] = c.split('\n')[1].replace(',', ':')
except:
result[i] = 'NaN'
print ','.join(result)
else:
quietRun('pkill -9 ' + cpustress)
#appendOutput(opts, cpu_log)
appendOutput(opts.outfile, cpu_usage)
net.stop()
def rtInfo( self, f ):
"Internal method: return parameters for RT bandwidth"
pstr, qstr = 'rt_period_us', 'rt_runtime_us'
# RT uses wall clock time for period and quota
quota = int( self.period_us * f * numCores() )
return pstr, qstr, self.period_us, quota
def parse_cpuacct(stats, cpulimit=None):
'''Return the following:
cpu_usage[n], with each element a dict{'xvals':[], 'cpuvals':[]}
cpu_stat[n] with each element a dict{'xvals':[], 'uservals': [], 'systemvals': []}
'''
cpu_usage = {}
rec_re = re.compile(r'cgroup (\S+),time (\d+.\d+)')
spaces = re.compile('\s+')
host = None
time = None
# Report CPU limit in CPU seconds rather than as a fraction (!)
cores = numCores()
cpulimit *= cores
for line in stats.split('\n'):
m = rec_re.match(line)
if m:
host = m.group(1)
time = float(m.group(2))
else:
line = spaces.sub( ' ', line ).split()
if 'usage' in line:
cpuval = float(line[1])
if host is None or time is None:
continue
if host not in cpu_usage:
cpu_usage[host] = {'xvals':[], 'cpuvals':[], 'uservals':[],
'systemvals':[], 'percpuvals':[], 'cpulimit': cpulimit }
cpu_usage[host]['xvals'].append(time)
cpu_usage[host]['cpuvals'].append(cpuval)
elif 'user' in line:
userval = float(line[1])
if host is None or time is None:
continue
cpu_usage[host]['uservals'].append(userval)
elif 'system' in line:
systemval = float(line[1])
if host is None or time is None:
continue
cpu_usage[host]['systemvals'].append(systemval)
elif 'percpu' in line:
percpuval = map(float, line[1:])
if host is None or time is None:
continue
cpu_usage[host]['percpuvals'].append(percpuval)
# Round results to reported (though not necessarily actual) accuracy (ns, HZ)
def r9(x):
return round(x,9)
def r2(x):
return round(x,2)
for k,v in cpu_usage.iteritems():
intervals = diff_list(v['xvals'])
v['xvals'] = [r9(x - v['xvals'][0]) for x in v['xvals']]
v['xvals'].pop(0)
v['cpuvals'] = [r9(1e-9*x/y) for x, y in zip(diff_list(v['cpuvals']), intervals)]
v['uservals'] = [r2(1e-2*x/y) for x, y in zip(diff_list(v['uservals']), intervals)]
v['systemvals'] = [r2(1e-2*x/y) for x, y in zip(diff_list(v['systemvals']), intervals)]
v['percpuvals'] = [[r9(1e-9*x/y) for x in l]
for l, y in zip(double_diff_list(v['percpuvals']), intervals)]
v['cpucount'] = cores
return [cpu_usage[k] for k in sorted(cpu_usage.keys(), key=natural)]
class Mininet_IoT(Mininet):
topo = None
sixLoWPan = sixLoWPan
APSensor = OVSSensor
controller = DefaultController
intf = Intf
inNamespace = False
autoSetMacs = False
autoStaticArp = False
autoPinCpus = False
listenPort = None
waitConnected = False
autoSetPositions = False
ipBase = '10.0.0.0/8'
ip6Base = '2001:0:0:0:0:0:0:0/64'
ipBaseNum, prefixLen = netParse(ipBase)
ip6BaseNum, prefixLen6 = netParse6(ip6Base)
nextIP = 1 # start for address allocation
nextIP6 = 1 # start for address allocation
nextPosition = 1
inNamespace = inNamespace
numCores = numCores()
nextCore = 0 # next core for pinning hosts to CPUs
nameToNode = {} # name to Node (Host/Switch) objects
links = []
apsensors = []
sensors = []
terms = [] # list of spawned xterm processes
nwpans = 0
connections = {}
wlinks = []
@classmethod
def init_module(cls, iot_module):
sensors = cls.sensors + cls.apsensors
module(sensors, cls.nwpans, iot_module=iot_module)
return cls.sensors, cls.apsensors
@classmethod
def pos_to_array(cls, node):
pos = node.params['position']
if isinstance(pos, string_types):
pos = pos.split(',')
node.position = [float(pos[0]), float(pos[1]), float(pos[2])]
node.params.pop('position', None)
@classmethod
def addParameters(cls, node, **params):
"""adds parameters to wireless nodes
node: node
autoSetMacs: set MAC addrs automatically like IP addresses
params: parameters
defaults: Default IP and MAC addresses
node_mode: if interface is running in managed or master mode"""
node.params['wpan'] = []
wpans = cls.count6LoWPANIfaces(**params)
for wpan in range(wpans):
node.params['wpan'].append(node.name + '-wpan' + str(wpan))
node.params.pop("wpans", None)
@staticmethod
def appendAssociatedTo(node):
"Add associatedTo param"
node.params['associatedTo'].append('')
@classmethod
def addAPSensor(self, name, cls=None, **params):
"""Add AccessPoint as a Sensor.
name: name of accesspoint to add
cls: custom switch class/constructor (optional)
returns: added accesspoint
side effect: increments listenPort var ."""
defaults = {'listenPort': self.listenPort,
'inNamespace': self.inNamespace
}
defaults.update(params)
if self.autoSetPositions:
defaults['position'] = (round(self.nextPos_ap, 2), 50, 0)
self.nextPos_ap += 100
if not cls:
cls = self.APSensor
ap = cls(name, **defaults)
if not self.inNamespace and self.listenPort:
self.listenPort += 1
self.nameToNode[name] = ap
if 'position' in params:
self.pos_to_array(ap)
self.addParameters(ap, **defaults)
self.apsensors.append(ap)
return ap
@classmethod
def addSensor(self, name, cls=None, **params):
"""Add Sensor node.
name: name of station to add
cls: custom 6LoWPAN class/constructor (optional)
params: parameters for 6LoWPAN
returns: added station"""
# Default IP and MAC addresses
nextIP6 = params['nextIP6']
defaults = {'ip6': ipAdd6(nextIP6,
ipBaseNum=self.ip6BaseNum,
prefixLen=self.prefixLen6) +
'/%s' % self.prefixLen6
}
defaults.update(params)
if self.autoSetPositions:
defaults['position'] = ('%s,0,0' % self.nextPosition)
if self.autoSetMacs:
defaults['mac'] = macColonHex(nextIP6)
if self.autoPinCpus:
defaults['cores'] = self.nextCore
self.nextCore = (self.nextCore + 1) % self.numCores
self.nextIP6 += 1
self.nextPosition += 1
if not cls:
cls = self.sixLoWPan
node = cls(name, **defaults)
self.nameToNode[name] = node
if 'position' in params:
self.pos_to_array(node)
self.addParameters(node, **defaults)
self.sensors.append(node)
return node
# BL: We now have four ways to look up nodes
# This may (should?) be cleaned up in the future.
def getNodeByName(self, *args):
"Return node(s) with given name(s)"
if len(args) is 1:
return self.nameToNode[args[0]]
return [self.nameToNode[n] for n in args]
def get(self, *args):
"Convenience alias for getNodeByName"
return self.getNodeByName(*args)
# Even more convenient syntax for node lookup and iteration
def __getitem__(self, key):
"net[ name ] operator: Return node with given name"
return self.nameToNode[key]
def __delitem__(self, key):
"del net[ name ] operator - delete node with given name"
self.delNode(self.nameToNode[key])
def __contains__(self, item):
"returns True if net contains named node"
return item in self.nameToNode
def keys(self):
"return a list of all node names or net's keys"
return list(self)
def values(self):
"return a list of all nodes or net's values"
return [self[name] for name in self]
def items(self):
"return (key,value) tuple list for every node in net"
return zip(self.keys(), self.values())
@staticmethod
def _parsePing(pingOutput):
"Parse ping output and return packets sent, received."
# Check for downed link
if 'connect: Network is unreachable' in pingOutput:
return 1, 0
r = r'(\d+) packets transmitted, (\d+)( packets)? received'
m = re.search(r, pingOutput)
if m is None:
error('*** Error: could not parse ping output: %s\n' %
pingOutput)
return 1, 0
sent, received = int(m.group(1)), int(m.group(2))
return sent, received
@classmethod
def ping6(self, hosts=None, timeout=None):
"""Ping6 between all specified hosts.
hosts: list of hosts
timeout: time to wait for a response, as string
returns: ploss packet loss percentage"""
# should we check if running?
packets = 0
lost = 0
ploss = None
if not hosts:
hosts = self.sensors
output('*** Ping: testing ping reachability\n')
for node in hosts:
output('%s -> ' % node.name)
for dest in hosts:
if node != dest:
opts = ''
if timeout:
opts = '-W %s' % timeout
if dest.intfs:
result = node.cmdPrint('ping6 -c1 %s %s'
% (opts, dest.IP()))
sent, received = self._parsePing(result)
else:
sent, received = 0, 0
packets += sent
if received > sent:
error('*** Error: received too many packets')
error('%s' % result)
node.cmdPrint('route')
exit(1)
lost += sent - received
output(('%s ' % dest.name) if received else 'X ')
output('\n')
if packets > 0:
ploss = 100.0 * lost / packets
received = packets - lost
output("*** Results: %i%% dropped (%d/%d received)\n" %
(ploss, received, packets))
else:
ploss = 0
output("*** Warning: No packets sent\n")
return ploss
@staticmethod
def _parseFull(pingOutput):
"Parse ping output and return all data."
errorTuple = (1, 0, 0, 0, 0, 0)
# Check for downed link
r = r'[uU]nreachable'
m = re.search(r, pingOutput)
if m is not None:
return errorTuple
r = r'(\d+) packets transmitted, (\d+)( packets)? received'
m = re.search(r, pingOutput)
if m is None:
error('*** Error: could not parse ping output: %s\n' %
pingOutput)
return errorTuple
sent, received = int(m.group(1)), int(m.group(2))
r = r'rtt min/avg/max/mdev = '
r += r'(\d+\.\d+)/(\d+\.\d+)/(\d+\.\d+)/(\d+\.\d+) ms'
m = re.search(r, pingOutput)
if m is None:
if received is 0:
return errorTuple
error('*** Error: could not parse ping output: %s\n' %
pingOutput)
return errorTuple
rttmin = float(m.group(1))
rttavg = float(m.group(2))
rttmax = float(m.group(3))
rttdev = float(m.group(4))
return sent, received, rttmin, rttavg, rttmax, rttdev
def pingFull(self, hosts=None, timeout=None):
"""Ping between all specified hosts and return all data.
hosts: list of hosts
timeout: time to wait for a response, as string
returns: all ping data; see function body."""
# should we check if running?
# Each value is a tuple: (src, dsd, [all ping outputs])
all_outputs = []
if not hosts:
hosts = self.hosts
output('*** Ping: testing ping reachability\n')
for node in hosts:
output('%s -> ' % node.name)
for dest in hosts:
if node != dest:
opts = ''
if timeout:
opts = '-W %s' % timeout
result = node.cmd('ping -c1 %s %s' % (opts, dest.IP()))
outputs = self._parsePingFull(result)
sent, received, rttmin, rttavg, rttmax, rttdev = outputs
all_outputs.append((node, dest, outputs))
output(('%s ' % dest.name) if received else 'X ')
output('\n')
output("*** Results: \n")
for outputs in all_outputs:
src, dest, ping_outputs = outputs
sent, received, rttmin, rttavg, rttmax, rttdev = ping_outputs
output(" %s->%s: %s/%s, " % (src, dest, sent, received))
output("rtt min/avg/max/mdev %0.3f/%0.3f/%0.3f/%0.3f ms\n" %
(rttmin, rttavg, rttmax, rttdev))
return all_outputs
def pingAll(self, timeout=None):
"""Ping between all hosts.
returns: ploss packet loss percentage"""
return self.ping6(timeout=timeout)
@staticmethod
def _parseIperf(iperfOutput):
"""Parse iperf output and return bandwidth.
iperfOutput: string
returns: result string"""
r = r'([\d\.]+ \w+/sec)'
m = re.findall(r, iperfOutput)
if m:
return m[-1]
else:
# was: raise Exception(...)
error('could not parse iperf output: ' + iperfOutput)
return ''
def iperf(self, hosts=None, l4Type='TCP', udpBw='10M', fmt=None,
seconds=5, port=5001):
"""Run iperf between two hosts.
hosts: list of hosts; if None, uses first and last hosts
l4Type: string, one of [ TCP, UDP ]
udpBw: bandwidth target for UDP test
fmt: iperf format argument if any
seconds: iperf time to transmit
port: iperf port
returns: two-element array of [ server, client ] speeds
note: send() is buffered, so client rate can be much higher than
the actual transmission rate; on an unloaded system, server
rate should be much closer to the actual receive rate"""
sleep(2)
nodes = self.sensors
hosts = hosts or [nodes[0], nodes[-1]]
assert len(hosts) is 2
client, server = hosts
output('*** Iperf: testing', l4Type, 'bandwidth between',
client, 'and', server, '\n')
server.cmd('killall -9 iperf')
iperfArgs = 'iperf -p %d ' % port
bwArgs = ''
if l4Type is 'UDP':
iperfArgs += '-u '
bwArgs = '-b ' + udpBw + ' '
elif l4Type != 'TCP':
raise Exception('Unexpected l4 type: %s' % l4Type)
if fmt:
iperfArgs += '-f %s ' % fmt
server.sendCmd(iperfArgs + '-s')
if l4Type is 'TCP':
if not waitListening(client, server.IP(), port):
raise Exception('Could not connect to iperf on port %d'
% port)
cliout = client.cmd(iperfArgs + '-t %d -c ' % seconds +
server.IP() + ' ' + bwArgs)
debug('Client output: %s\n' % cliout)
servout = ''
# We want the last *b/sec from the iperf server output
# for TCP, there are two of them because of waitListening
count = 2 if l4Type is 'TCP' else 1
while len(re.findall('/sec', servout)) < count:
servout += server.monitor(timeoutms=5000)
server.sendInt()
servout += server.waitOutput()
debug('Server output: %s\n' % servout)
result = [self._parseIperf(servout), self._parseIperf(cliout)]
if l4Type is 'UDP':
result.insert(0, udpBw)
output('*** Results: %s\n' % result)
return result
@classmethod
def count6LoWPANIfaces(self, **params):
"Count the number of virtual 6LoWPAN interfaces"
if 'wpans' in params:
self.nwpans += int(params['wpans'])
wpans = int(params['wpans'])
else:
wpans = 1
self.nwpans += 1
return wpans
def kill_fakelb(self):
"Kill fakelb"
module.fakelb()
sleep(0.1)
def configureIface(self, node, wlan):
intf = module.wlan_list[0]
module.wlan_list.pop(0)
node.renameIface(intf, node.params['wpan'][wlan])
def closeMininetWiFi(self):
"Close Mininet-WiFi"
module.stop()
def __init__(self,
topo=None,
switch=OVSKernelSwitch,
host=Host,
controller=DefaultController,
link=Link,
intf=Intf,
build=True,
xterms=False,
cleanup=False,
ipBase='10.0.0.0/8',
inNamespace=False,
autoSetMacs=False,
autoStaticArp=False,
autoPinCpus=False,
listenPort=None,
waitConnected=False,
monitor_interval=5,
sample_interval=1,
tdf_adaptor=None):
"""Create Mininet object.
topo: Topo (topology) object or None
switch: default Switch class
host: default Host class/constructor
controller: default Controller class/constructor
link: default Link class/constructor
intf: default Intf class/constructor
ipBase: base IP address for hosts,
build: build now from topo?
xterms: if build now, spawn xterms?
cleanup: if build now, cleanup before creating?
inNamespace: spawn switches and controller in net namespaces?
autoSetMacs: set MAC addrs automatically like IP addresses?
autoStaticArp: set all-pairs static MAC addrs?
autoPinCpus: pin hosts to (real) cores (requires CPULimitedHost)?
listenPort: base listening port to open; will be incremented for
each additional switch in the net if inNamespace=False"""
self.topo = topo
self.switch = switch
self.host = host
self.controller = controller
self.link = link
self.intf = intf
self.ipBase = ipBase
self.ipBaseNum, self.prefixLen = netParse(self.ipBase)
self.nextIP = 1 # start for address allocation
self.inNamespace = inNamespace
self.xterms = xterms
self.cleanup = cleanup
self.autoSetMacs = autoSetMacs
self.autoStaticArp = autoStaticArp
self.autoPinCpus = autoPinCpus
self.numCores = numCores()
self.nextCore = 0 # next core for pinning hosts to CPUs
self.listenPort = listenPort
self.waitConn = waitConnected
self.hosts = []
self.switches = []
self.controllers = []
self.links = []
self.nameToNode = {} # name to Node (Host/Switch) objects
self.terms = [] # list of spawned xterm processes
self.monitor_queue = Queue.Queue()
self.monitor_interval = monitor_interval
self.sample_interval = sample_interval
self.tdf_adaptor = tdf_adaptor
self.record_file = open('record_tdf.log', 'a+')
self.record_file.write(
"*****************\nNew Expriment Starts\n*****************\n")
self.updating_tdf = False
self.cpu_usage = -1
self.stop_timer = False
Mininet.init() # Initialize Mininet if necessary
self.built = False
if topo and build:
self.build()
