I am seeing the following error when controller receives and attempts to parse
a multipart reply for a port_desc_stats_request. This was working until
recently, I would appreciate any suggestions for a fix/workaround to this issue.
Trace:
[0x1000082e5f694c00] ('143.0.1.211', 56538): OFPGetConfigReply received:
flags=NORMAL miss_send_len=1518
Error in the datapath 1000082e5f694c00 from ('143.0.1.211', 56538)
hub: uncaught exception: Traceback (most recent call last):
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/lib/hub.py", line
48, in _launch
func(*args, **kwargs)
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/controller/controller.py",
line 312, in datapath_connection_factory
datapath.serve()
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/controller/controller.py",
line 232, in serve
self._recv_loop()
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/controller/controller.py",
line 97, in deactivate
method(self)
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/controller/controller.py",
line 165, in _recv_loop
version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/ofproto/ofproto_parser.py",
line 54, in msg
return msg_parser(datapath, version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/ofproto/ofproto_v1_3_parser.py",
line 50, in msg_parser
return parser(datapath, version, msg_type, msg_len, xid, buf)
File
"/usr/local/lib/python2.6/dist-packages/ryu-2.1-py2.6.egg/ryu/ofproto/ofproto_v1_3_parser.py",
line 2192, in parser
offset += b._length
AttributeError: 'OFPPort' object has no attribute '_length'
Code:
...
self.send_get_config_request(datapath)
self.send_port_desc_stats_request(datapath)
...
def send_port_desc_stats_request(self, datapath):
self.printme("SENT port_desc_stats_request",
datapath, 3)
ofp_parser = datapath.ofproto_parser
req =
ofp_parser.OFPPortDescStatsRequest(datapath, 0)
datapath.send_msg(req)
...
Thanks,
--Matt
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