Hi,
I am working on LINC switch with ryu. The program l2_switch_v1_3.py most of
the time works for me and some times it is giving me the following error.
May I know the reason for that.
Error in the datapath 0000001143e49276 from ('155.98.39.112', 33333)
hub: uncaught exception: Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 48, in
_launch
func(*args, **kwargs)
File
"/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line
312, in datapath_connection_factory
datapath.serve()
File
"/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line
232, in serve
self._recv_loop()
File
"/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line
97, in deactivate
method(self)
File
"/usr/local/lib/python2.7/dist-packages/ryu/controller/controller.py", line
165, in _recv_loop
version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.7/dist-packages/ryu/ofproto/ofproto_parser.py",
line 54, in msg
return msg_parser(datapath, version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.7/dist-packages/ryu/ofproto/ofproto_v1_3_parser.py",
line 51, in msg_parser
return parser(datapath, version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.7/dist-packages/ryu/ofproto/ofproto_v1_3_parser.py",
line 2009, in parser
ofproto_v1_3.OFP_MATCH_SIZE)
File
"/usr/local/lib/python2.7/dist-packages/ryu/ofproto/ofproto_v1_3_parser.py",
line 1133, in parser
k, uv = ofproto_v1_3.oxm_to_user(n, value, mask)
File "/usr/local/lib/python2.7/dist-packages/ryu/ofproto/oxm_fields.py",
line 165, in to_user
value = t.to_user(v)
File "/usr/local/lib/python2.7/dist-packages/ryu/ofproto/oxm_fields.py",
line 46, in to_user
i = i * 256 + ord(c)
TypeError: ord() expected a character, but string of length 0 found
--
Thanks.
Gandhimathi Velusamy
Graduate Research Assistant
College of Technology
University of Houston
gvelus...@uh.edu
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