TFTP send method having issue
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Key: NET-304
URL: https://issues.apache.org/jira/browse/NET-304
Project: Commons Net
Issue Type: Bug
Affects Versions: 2.0
Reporter: Rahul Pujari
Priority: Minor
I am using commons net 2.0 version. I have a TFTP server implemented and the
scenario is below -
1) Client sends TFTPWrite request.
2) Server sends DATA packet, client sends ACK. Server receives it (thr
TFTP.receive()).
3) This goes well for quite some time.
4) Now server gets same ACK thrice, means some packets are not reached to
client and client sends the same ACK again.
5) Server also sends the old DATA packet coresponding to the ACK, using
TFTP.send(). But somehow those DATA packets are not seen on the interface in
the snoop log :(. So client has a timeout of say 5 secs, and closes the
connection at its end indicating overall transfer failure. And I could see the
DATA packet coming in the snoop log after 13-14 secs of delay :(, once
TFTP.send() is invoked.
This does not happens always. Scenario works fine most of the times, but there
are cases where it's delaying sending the packet on the i/f. And delay osberved
was around 10 secs. Because of this, Client closes a connection :(.
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