net.py 文件源码

def startRyu(self, learning_switch=True):
        # start Ryu controller with rest-API
        python_install_path = site.getsitepackages()[0]
        # ryu default learning switch
        #ryu_path = python_install_path + '/ryu/app/simple_switch_13.py'
        #custom learning switch that installs a default NORMAL action in the ovs switches
        dir_path = os.path.dirname(os.path.realpath(__file__))
        ryu_path = dir_path + '/son_emu_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("/tmp/ryu.log", 'w')
        if learning_switch:
            self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
            LOG.debug('starting ryu-controller with {0}'.format(ryu_path))
            LOG.debug('starting ryu-controller with {0}'.format(ryu_path2))
        else:
            # no learning switch, but with rest api
            self.ryu_process = Popen([ryu_cmd, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
            LOG.debug('starting ryu-controller with {0}'.format(ryu_path2))
        time.sleep(1)