Hi,
> " Datapath in process of terminating; send() to 10.0.0.100 discarded "
This message shows Ryu could not send a message because the connection to your
switch was already disconnected and "send_loop" thread was closed.
Please confirm that the connection between controller-switch kept established.
If keeping the connection is difficult, I guess you need to wait for the
connection re-establishment before sending stats requests.
Example:
Your App Datapath Your SW
| | disconnected |
| |--------X-------|
| send_msg() | |
|------------------>| |
| |(*) | (*) output message you reported
| | reconnect |
| SwitchFeatures ev |================|
|<------------------| |
| | |
Restart
stats loop here
Please note when reconnecting to your switch, a new Datapath instance will be
created, so the stored Datapath instance needs to be replaced by the new one.
Thanks,
Iwase
On 2017年12月05日 00:27, shahid javed wrote:
Hi All,
I am trying to get switch status updates under a link high load, I have the
following method which sends request to switches to reply with their stats. The
issue I am having is when a packet gets dropped due to high load I am not able
to resend the packet. I tried the --verbose to get the debug log and I get the
following:
" Datapath in process of terminating; send() to 10.0.0.100 discarded "
def send_stats_requests(self):
for switchAddress in range(100,106):
# I have stored all datapath objects in a dictionary with key as
address of switch
state = self.dp.get(switchAddress,9)[1]
if state == 0:
datapath = self.dp.get(switchAddress)[0]
ofp = datapath.ofproto
ofp_parser = datapath.ofproto_parser
req = ofp_parser.OFPDescStatsRequest(datapath,0)
datapath.send_msg(req)
elif state == 1:
print str(switchAddress) + ' Status Recieved'
self._timer = Timer(6, self.send_stats_requests)
self._timer.start()
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