This class is used by topology definition scripts.
"""
- def __init__(self, controller=RemoteController, dc_emulation_max_cpu=1.0, **kwargs):
+ def __init__(self, controller=RemoteController,
+ dc_emulation_max_cpu=1.0, # fraction of overall CPU time for emulation
+ dc_emulation_max_mem=512, # emulation max mem in MB
+ **kwargs):
"""
Create an extended version of a Dockernet network
:param dc_emulation_max_cpu: max. CPU time used by containers in data centers
Dockernet.__init__(
self, switch=OVSKernelSwitch, **kwargs)
- # start Ryu controller
- self.startRyu()
+ # Ryu management
+ self.ryu_process = None
+ if controller == RemoteController:
+ # start Ryu controller
+ self.startRyu()
- # add a remote controller to be able to use Ryu
+ # add the specified controller
self.addController('c0', controller=controller)
# graph of the complete DC network
self.monitor_agent = DCNetworkMonitor(self)
# initialize resource model registrar
- self.rm_registrar = ResourceModelRegistrar(dc_emulation_max_cpu)
+ self.rm_registrar = ResourceModelRegistrar(
+ dc_emulation_max_cpu, dc_emulation_max_mem)
def addDatacenter(self, label, metadata={}):
"""
# start Ryu controller with rest-API
python_install_path = site.getsitepackages()[0]
ryu_path = python_install_path + '/ryu/app/simple_switch_13.py'
- ryu_path2 = python_install_path + '/ryu/app/ofctl_rest.py'
+ ryu_path2 = python_install_path + '/ryu/app/ofctl_rest.py'
# change the default Openflow controller port to 6653 (official IANA-assigned port number), as used by Mininet
# Ryu still uses 6633 as default
ryu_option = '--ofp-tcp-listen-port'
ryu_of_port = '6653'
- ryu_cmd = 'ryu-manager'
+ ryu_cmd = 'ryu-manager'
FNULL = open("/tmp/ryu.log", 'w')
self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
time.sleep(1)
def stopRyu(self):
- if self.ryu_process:
+ if self.ryu_process is not None:
self.ryu_process.terminate()
self.ryu_process.kill()