Does this happen reliably? If so, in "/home/sdn/pox/pox/openflow/__init__.py" at line 282, can you insert a log or print statement like: print str(value),' ',repr(value)
.. and send the new console output? -- Murphy On Apr 9, 2013, at 6:10 AM, 吴亚楠 wrote: > > help! > > sdn@IPL204:~/pox$ ./pox.py forwarding.l3_learning > --fakeways=172.16.0.1,172.16.1.1 > POX 0.1.0 (betta) / Copyright 2011-2013 James McCauley, et al. > INFO:core:POX 0.1.0 (betta) is up. > INFO:openflow.of_01:[90-e2-ba-28-2d-d5 1] connected > INFO:packet:(dhcp parse) warning DHCP packet data too short to parse header: > data len 86 > INFO:packet:(dhcp parse) warning DHCP packet data too short to parse header: > data len 86 > Task <Timer/tid1> caused exception and was de-scheduled > Traceback (most recent call last): > File "/home/sdn/pox/pox/lib/recoco/recoco.py", line 276, in cycle > rv = t.execute() > File "/home/sdn/pox/pox/lib/recoco/recoco.py", line 94, in execute > return self.gen.send(v) > File "/home/sdn/pox/pox/lib/recoco/recoco.py", line 751, in run > rv = self._callback(*self._args,**self._kw) > File "/home/sdn/pox/pox/forwarding/l3_learning.py", line 130, in > _handle_expiration > core.openflow.sendToDPID(dpid, po) > File "/home/sdn/pox/pox/openflow/__init__.py", line 346, in sendToDPID > if dpid in self._connections: > File "/home/sdn/pox/pox/openflow/__init__.py", line 282, in __contains__ > return item in self.values() > File "/home/sdn/pox/pox/lib/addresses.py", line 315, in __cmp__ > return -other.__cmp__(self) > AttributeError: 'Connection' object has no attribute '__cmp__'
