def send_lldp(self, sw, port):
"""Send LLDP to switch and port
@param sw datapath id of switch
@param port phy port
"""
self.__po.xid = ofutil.get_xid()
self.__po.actions[0].port = port.port_no
switch = self.conn.get_conn(sw)
if (switch != None):
switch.send(self.__po.pack()+\
self.form_eth_lldp(sw, port))
output.vdbg("Sending LLDP to %x:" % sw +str(port.port_no),
self.__class__.__name__)
def get_flow_stats_request(self, out_port=pyof.OFPP_NONE, table_id=0xFF):
"""Function to return flow_stats_request for a matching flow
@return (ofp_stats_request, ofp_flow_stats_request)
"""
sr = pyof.ofp_stats_request()
sr.header.xid = ofutil.get_xid()
sr.type = pyof.OFPST_FLOW
fsr = pyof.ofp_flow_stats_request()
fsr.match = self.match
fsr.table_id = table_id
fsr.out_port = out_port
return (sr, fsr)
def get_flow_mod(self, command=pyof.OFPFC_ADD, cookie=0):
"""Function to return flow_entry in terms of flow mod.
@return ofp_flow_mod
"""
fm = pyof.ofp_flow_mod()
fm.match = self.match
fm.cookie = cookie
fm.command = command
fm.idle_timeout = self.idle_timeout
fm.hard_timeout = self.hard_timeout
fm.priority = self.priority
fm.buffer_id = self.buffer_id
fm.out_port = self.out_port
fm.flags = self.flags
fm.actions = self.actions[:]
fm.header.xid = ofutil.get_xid()
return fm
