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1 나는 다음과 같은 명령으로 mininet 환경에서 간단한 네트워크를 만들었습니다. 들어오는 패킷에 대해 OFPEVENTPacketIn 이벤트를 사용하려고 생각하고 있지만 패킷 양식 포트가 나오지 않을 것입니다.류 (SDN) 트래픽 컨트롤러는
내 코드 :
from operator import attrgetter
from ryu.app import simple_switch_13
from ryu.controller import ofp_event
from ryu.controller.handler import MAIN_DISPATCHER, DEAD_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.lib import hub
class SimpleMonitor(simple_switch_13.SimpleSwitch13):
def __init__(self, *args, **kwargs):
super(SimpleMonitor, self).__init__(*args, **kwargs)
self.datapaths = {}
self.monitor_thread = hub.spawn(self._monitor)
@set_ev_cls(ofp_event.EventOFPStateChange,
[MAIN_DISPATCHER, DEAD_DISPATCHER])
def _state_change_handler1(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):
self.logger.debug('send stats request: %016x', datapath.id)
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
req = parser.OFPFlowStatsRequest(datapath)
datapath.send_msg(req)
req = parser.OFPPortStatsRequest(datapath, 0, ofproto.OFPP_ANY)
datapath.send_msg(req)
@set_ev_cls(ofp_event.EventOFPFlowStatsReply, MAIN_DISPATCHER)
def _flow_stats_reply_handler(self, ev):
body = ev.msg.body
self.logger.info('datapath '
'in-port eth-dst '
'out-port packets bytes')
self.logger.info('---------------- '
'-------- ----------------- '
'-------- -------- --------')
for stat in sorted([flow for flow in body if flow.priority == 1],
key=lambda flow: (flow.match['in_port'],
flow.match['eth_dst'])):
# self.logger.info('%016x %8x %17s %8x %8d %8d',
if stat.match['in_port']==1:
self.logger.info('%x %x %s %x %d %d',
ev.msg.datapath.id,
stat.match['in_port'], stat.match['eth_dst'],
stat.instructions[0].actions[0].port,
stat.packet_count, stat.byte_count)
#for stat in [1234]#sorted([flow for flow in body if flow.priority == 1],
# key=lambda flow: (flow.match['in_port'],
# flow.match['eth_dst'])):
# self.logger.info('%016x %8x %17s %8x %8d %8d',
# if stat.match['in_port']==1:
# self.logger.info('%x %x %s %x %d %d',
# ev.msg.datapath.id,
# stat.match['in_port'], stat.match['eth_dst'],
# stat.instructions[0].actions[0].port,
# stat.packet_count, stat.byte_count)
@set_ev_cls(ofp_event.EventOFPPortStatsReply, MAIN_DISPATCHER)
def _port_stats_reply_handler(self, ev):
body = ev.msg.body
self.logger.info('datapath port '
'rx-pkts rx-bytes rx-error '
'tx-pkts tx-bytes tx-error')
self.logger.info('---------------- -------- '
'-------- -------- -------- '
'-------- -------- --------')
for stat in sorted(body, key=attrgetter('port_no')):
if stat.port_no==1:
self.logger.info('%016x %8x %8d %8d %8d %8d %8d %8d',
ev.msg.datapath.id, stat.port_no,
stat.rx_packets, stat.rx_bytes, stat.rx_errors,
stat.tx_packets, stat.tx_bytes, stat.tx_errors)
는 내 질문에 대답하기 위해이 코드를 편집 도와주세요. 감사.