Below two methods i am using in QoS routing application :
method 1:
def _send_echo_request(self,datapath):
for datapath in self.datapaths.values():
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
data = "%.6f" % time.time()
echo_req = parser.OFPEchoRequest(datapath, data=data)
datapath.send_msg(echo_req))
method 2:
@set_ev_cls(ofp_event.EventOFPEchoReply, MAIN_DISPATCHER)
def echo_reply_handler(self, ev):
try:
print(ev.msg.data)
latency = time.time() - eval(ev.msg.data)
self.echo_latency[ev.msg.datapath.id] = latency
except:
print("in exception")
return
In the mininet both works perfectly but while i am using in Zodiac Fx
switches in the echo_reply_handler() method i am not getting data value
which is passed by method 1 it shows exception. How to trace or debug event
base method? Using print I have debug the code . While i print echo_req in
method 1 it sends the data value which is time but in the reply method it
is not getting in physical switch test bed environment. I am not getting
any idea regarding this...
--
Thanks & Regards,
Ramani Sagar V.
G.E.S Class - II,
Govt Of Gujarat,
India.
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