def _flow_stats_reply_handler(self, ev):
body = ev.msg.body
self.logger.info('datapath '
'in-port out-port eth-dst '
'eth-src packets bytes '
'ip-src ip-dst ')
self.logger.info('---------------- '
'-------- -------- ----------------- '
'----------------- -------- --------'
'----------------- -----------------')
bytsum = 0
for stat in sorted([flow for flow in body if flow.priority == 1]):
src = None
bytsum = bytsum + stat.byte_count
if 'eth_src' in stat.match:
src = stat.match['eth_src']
self.logger.info('%016x %8x %8x %17s %17s %8d %8d',
ev.msg.datapath.id, stat.match['in_port'],
stat.instructions[0].actions[0].port,
stat.match['eth_dst'], src, stat.packet_count,
stat.byte_count) #,
# stat.match['ipv4_src'], stat.match['ipv4_dst'])
for stat in sorted([flow for flow in body if flow.priority == 1]):
Update.Update_CP(stat.instructions[0].actions[0].port,
stat.match['eth_dst'],
stat.byte_count * 1.0 / bytsum * 100)
class SamplerSwitch(simple_switch_13.SimpleSwitch13):
def __init__(self, *args, **kwargs):
super(SamplerSwitch, self).__init__(*args, **kwargs)
self.datapaths = {}
self.monitor_thread = hub.spawn(self._monitor) #hub that will query switches
@set_ev_cls(ofp_event.EventOFPStateChange,
[MAIN_DISPATCHER, DEAD_DISPATCHER])
def _state_change_handler(self, ev):
datapath = ev.datapath
if ev.state == MAIN_DISPATCHER:
if not datapath.id in self.datapaths:
self.logger.debug('register datapath: %016x', datapath.id)
self.datapaths[datapath.id] = datapath
elif ev.state == DEAD_DISPATCHER:
if datapath.id in self.datapaths:
self.logger.debug('unregister datapath: %016x', datapath.id)
del self.datapaths[datapath.id]
def _monitor(self):
while True:
for dp in self.datapaths.values():
self._request_stats(dp)
hub.sleep(10)
def _request_stats(self, datapath):
if datapath.id == 0000000000000002:
self.logger.debug('send stats request: %016x', datapath.id)
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
req = parser.OFPFlowStatsRequest(datapath)
datapath.send_msg(req)
@set_ev_cls(ofp_event.EventOFPFlowStatsReply, MAIN_DISPATCHER)
def _flow_stats_reply_handler(self, ev):
body = ev.msg.body
flows = []
self.logger.info('datapath '
'in-port out-port eth-dst '
'eth-src packets bytes '
'ip-src ip-dst ')
self.logger.info('---------------- '
'-------- -------- ----------------- '
'----------------- -------- --------'
'----------------- -----------------')
for stat in sorted([flow for flow in body if flow.priority == 1]):
src = None
bytsum = bytsum + stat.byte_count
if 'eth_src' in stat.match:
src = stat.match['eth_src']
self.logger.info('%016x %8x %8x %17s %17s %8d %8d',
ev.msg.datapath.id,
stat.match['in_port'],
stat.instructions[0].actions[0].port,
stat.match['eth_dst'],
src,
stat.packet_count, stat.byte_count)#,
# stat.match['ipv4_src'], stat.match['ipv4_dst'])
flows.append(stat)
while len(flows) > 0:
flowcount = 1.0
bytecount = 0;
packetcount = 0;
for i in range(1, len(flows)):
if flows[0].match['eth_dst'] == flows[i].match['eth_dst']:
bytecount = flows[i].byte_count + bytecount
packetcount = flows[i].packet_count + packetcount
del flows[i]
i--
Update.Update_CP(flows[0].instructions[0].actions[0].port,flows[0].match['eth_dst'], (flows[0].byte_count + bytecount) / count, (packetcount + flows[0].packet_count) / count)
del flows[0]
