def __init__ (self, network=None, topo_desc=None):
"""
Initialize Mininet implementation with proper attributes.
Use network as the hided Mininet topology if it's given.
:param topo_desc: static topology description e.g. the related NFFG
:type topo_desc: :any:`NFFG`
:param network: use this specific Mininet object for init (default: None)
:type network: :class:`mininet.net.MininetWithControlNet`
:return: None
"""
log.debug("Init ESCAPENetworkBridge with topo description: %s" % topo_desc)
if network is not None:
self.__mininet = network
else:
log.warning(
"Network implementation object is missing! Use Builder class instead "
"of direct initialization. Creating bare Mininet object anyway...")
self.__mininet = MininetWithControlNet()
# Topology description which is emulated by the Mininet
self.topo_desc = topo_desc
# Duplicate static links for ensure undirected neighbour relationship
if self.topo_desc is not None:
back_links = [l.id for u, v, l in
self.topo_desc.network.edges_iter(data=True) if
l.backward is True]
if len(back_links) == 0:
log.debug("No backward link has been detected! Duplicate STATIC links "
"to ensure undirected relationship for mapping...")
self.topo_desc.duplicate_static_links()
# Need to clean after shutdown
self._need_clean = None
# There is no such flag in the Mininet class so using this
self.started = False
self.xterms = []
def netWithVNFs(netconf=False):
"Create an empty network and add nodes to it."
#ctl = InbandController( 'ctl', ip='192.168.123.1' )
#ctl = InbandController( 'ctl', ip='127.0.0.1' )
#net = MininetWithControlNet( )
net = MininetWithControlNet(controller=Controller, autoSetMacs=True)
#net = Mininet( controller=Controller )
info('*** Adding controller\n')
ctl = net.addController('c0', controller=RemoteController)
#import pdb; pdb.set_trace();
info('*** Adding hosts \n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding VNFs \n')
if netconf:
ee1 = net.addEE('ee1')
ee1.setVNF(vnf_name='netconf')
ee2 = net.addEE('ee2')
ee2.setVNF(vnf_name='netconf')
#[ exe1_sw, exe1_container ] = net.addManagedExe( 'exe1', nintf=5)
#exe1_container.cmd = netconf.makeNetConfCmd()
else:
ee1 = net.addEE('ee1', cpu=0.1)
#ee1.setVNF(vnf_name='fakeLoad', cpu='8', mem='5MB')
ee1.setVNF(vnf_name='simpleForwarder', name=ee1.name)
ee2 = net.addEE('ee2', cpu=0.1)
ee2.setVNF(vnf_name='simpleObservationPoint', name=ee2.name)
#ee2.setVNF(vnf_name='fakeLoad', cpu='8', mem='5MB')
#ee2.setVNF(vnf_name='lookbusy',
# mem_util='5MB', cpu_util='8-20', cpu_mode='curve',
# cpu_curve_period='5m', cpu_curve_peak='2m' )
info('*** Adding switches\n')
s3 = net.addSwitch('s3')
s4 = net.addSwitch('s4')
info('*** Creating links\n')
net.addLink(h1, s3)
net.addLink(h2, s4)
net.addLink(s3, s4)
if netconf:
net.addLink(exe1_sw, s3)
else:
net.addLink(ee1, s3)
net.addLink(ee2, s4)
info('*** Starting network\n')
net.start()
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
def _start_mininet(self, opts=None):
if not opts:
opts = {}
self._info("***Starting mininet***")
opts['controller'] = Controller
opts['autoSetMacs'] = True
self.net = MininetWithControlNet(**opts)
def netWithVNFs(netconf=False):
"Create an empty network and add nodes and VNFs to it."
net = MininetWithControlNet(controller=Controller, autoSetMacs=True)
info('*** Adding controller\n')
ctl = net.addController('c0', controller=RemoteController)
info('*** Adding hosts \n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding VNFs \n')
if netconf:
ee1 = net.addEE('ee1')
ee1.setVNF(vnf_name='netconf')
ee2 = net.addEE('ee2')
ee2.setVNF(vnf_name='netconf')
else:
ee1 = net.addEE('ee1', cpu=0.1)
ee1.setVNF(vnf_name='simpleForwarder', name=ee1.name)
ee2 = net.addEE('ee2', cpu=0.1)
#ee2.setVNF(vnf_name='fakeload', name=ee2.name, cpu='8', mem='5MB')
ee2.setVNF(vnf_name='simpleForwarder')
info('*** Adding switches\n')
s3 = net.addSwitch('s3')
s4 = net.addSwitch('s4')
info('*** Creating links\n')
net.addLink(h1, s3)
net.addLink(h2, s4)
net.addLink(s3, s4)
if netconf:
net.addLink(exe1_sw, s3)
else:
net.addLink(ee1, s3)
net.addLink(ee2, s4)
info('*** Starting network\n')
net.start()
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
def __init__(self, net=None, opts=None, fallback=True, run_dry=True):
"""
Initialize NetworkBuilder.
If the topology definition is not found, an exception will be raised or
an empty :class:`mininet.net.Mininet` topology will be created if
``run_dry`` is set.
:param net: update given Mininet object instead of creating a new one
:type net: :class:`mininet.net.Mininet`
:param opts: update default options with the given opts
:type opts: dict
:param fallback: search for fallback topology (default: True)
:type fallback: bool
:param run_dry: do not raise an Exception and return with bare Mininet obj.
:type run_dry: bool
:return: None
"""
self.opts = dict(self.default_opts)
if opts is not None:
self.opts.update(opts)
self.fallback = fallback
self.run_dry = run_dry
if net is not None:
if isinstance(net, Mininet):
# Initial settings - Create new Mininet object if necessary
self.mn = net
else:
raise TopologyBuilderException(
"Network object's type must be a derived class of Mininet!"
)
else:
# self.mn = Mininet(**self.opts)
try:
self.mn = MininetWithControlNet(**self.opts)
except KeyboardInterrupt:
quit_with_error(
msg="Assembly of Mininet network was interrupted by user!",
logger=log)
# Basically a wrapper for mn to offer helping functions
self.mn_bridge = None
# Cache of the topology description as an NFFG which is parsed during
# initialization
self.topo_desc = None
self.__dpid_cntr = self.dpidBase
def netWithVNFs(netconf=False):
"Create an empty network and add nodes to it."
#ctl = InbandController( 'ctl', ip='192.168.123.1' )
#ctl = InbandController( 'ctl', ip='127.0.0.1' )
#net = MininetWithControlNet( )
net = MininetWithControlNet(controller=Controller, autoSetMacs=True)
#net = Mininet( controller=Controller )
info('*** Adding controller\n')
ctl = net.addController('c0', controller=RemoteController)
#import pdb; pdb.set_trace();
info('*** Adding hosts \n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding VNFs \n')
if netconf:
ee1 = net.addEE('ee1')
ee1.setVNF(vnf_name='netconf')
ee2 = net.addEE('ee2')
ee2.setVNF(vnf_name='netconf')
#[ exe1_sw, exe1_container ] = net.addManagedExe( 'exe1', nintf=5)
#exe1_container.cmd = netconf.makeNetConfCmd()
else:
ee1 = net.addEE('ee1', cpu=0.1)
#ee1.setVNF(vnf_name='fakeLoad', cpu='8', mem='5MB')
ee1.setVNF(vnf_name='simpleForwarder',
device=ee1.name + '_eth1',
name=ee1.name)
ee2 = net.addEE('ee2', cpu=0.1)
#example for NAT with two ports connected to internal hosts (private addresses) and one port connected to the Internet (public address)
device = [{
'index': 0,
'name': 'eth1',
'ip1': '1.0.0.1',
'ip2': '1.0.0.10'
}, {
'index': 1,
'name': 'eth2',
'ip1': '1.0.0.20',
'ip2': '1.0.0.30'
}]
public = {'index': 2, 'name': 'eth2'}
ee2.setVNF(vnf_name='nat', device=device, public=public)
# ee2.setVNF(vnf_name='simpleObservationPoint', name=ee2.name)
#ee2.setVNF(vnf_name='fakeLoad', cpu='8', mem='5MB')
#ee2.setVNF(vnf_name='lookbusy',
# mem_util='5MB', cpu_util='8-20', cpu_mode='curve',
# cpu_curve_period='5m', cpu_curve_peak='2m' )
info('*** Adding switches\n')
s3 = net.addSwitch('s3')
s4 = net.addSwitch('s4')
info('*** Creating links\n')
net.addLink(h1, s3)
net.addLink(h2, s4)
net.addLink(s3, s4)
if netconf:
net.addLink(exe1_sw, s3)
else:
net.addLink(ee1, s3)
net.addLink(ee2, s4)
info('*** Starting network\n')
net.start()
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
