"""
import logging
+import site
+from subprocess import Popen
+import os
+
from mininet.net import Dockernet
from mininet.node import Controller, OVSSwitch, OVSKernelSwitch, Switch, Docker, Host, RemoteController
from mininet.cli import CLI
# monitoring agent
self.monitor_agent = DCNetworkMonitor(self)
+ # start Ryu controller
+ self.startRyu()
+
def addDatacenter(self, label, metadata={}):
"""
Dockernet.start(self)
def stop(self):
+ # stop Ryu controller
+ self.ryu_process.terminate()
+ #self.ryu_process.kill()
Dockernet.stop(self)
def CLI(self):
current_hop = next_hop
- return "destination node: {0} not reached".format(vnf_dst_name)
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+ return "destination node: {0} not reached".format(vnf_dst_name)
+
+ # start Ryu Openflow controller as Remote Controller for the DCNetwork
+ def startRyu(self):
+ # 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'
+ # 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'
+ FNULL = open(os.devnull, 'w')
+ self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
\ No newline at end of file