Hi Francois, hi all
I cannot reproduce the packet loss on localhost.
Strange. I always lose some packets on localhost (at least setting
Interval=0 on the client).
I can reproduce on different computers, but I found a flaw in your
design: remember TWSocket use non blocking. SendTo will fail
01, 2011 10:11 AM
Subject: Re: [twsocket] udp packet loss
Hi Francois, hi all
I cannot reproduce the packet loss on localhost.
Strange. I always lose some packets on localhost (at least setting
Interval=0 on the client).
I can reproduce on different computers, but I found a flaw in your
var
lBuffer:array[0..1500] of AnsiChar;
I'd advice you not to allocate static buffer inside a method because it is
placed inside the stack every time method is called.
--
Anton
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Hi,
I'll assume you use a direct cable or put wireshark at the receiving
computer because sending a packet is not a problem. Having the packet
reaching the network card of the receiving computer is a different thing
if there is something in between.
Yes, I use a cross cable and two laptop
My client/server project size is only 12KB, is it possible to attach it
to the mail? Someone could try it...
It don't primize, but you may send the source code to me (no executable
please) I will try to test it. Include complete projects so that I can test
within a few minutes, and
Hi,
now I've made a console application for the UDP server, but nothing changes.
I see packet loss inside application, but all packets are correctly
captured by wireshark.
Thankyou,
Emanuele
Il 27/02/2011 15.09, Francois PIETTE ha scritto:
My client/server project size is only 12KB, is it
- Original Message -
From: emanuele bizzarri e.bizza...@e-works.it
To: twsocket@elists.org
Sent: Sunday, February 27, 2011 7:05 PM
Subject: Re: [twsocket] udp packet loss
Hi,
now I've made a console application for the UDP server, but nothing changes.
I see packet loss inside application
Hi,
I've a problem with udp.
Often my application detects packet losses.
In order to systematically reproduce the problem, I've used the
following configuration.
I use 2 pc connected with a cross cable.
The client sends udp numbered packets to the server.
Packet size is 1460. One packet is sent
I've a problem with udp.
Often my application detects packet losses.
At first glance, this is expected with UDP. By construction UDP is an
unreliable transport.
In order to systematically reproduce the problem, I've used the
following configuration.
I use 2 pc connected with a cross cable.
Hi Francois,
thank you for your response.
I've created the socket inside DoInit, that is an override method of the
virtual DoInit of the worker thread.
The DoInit method is called inside Execute method, so the socket is
created by the thread and its messages are handled by it (try to use
As you can see in my code I've also try to set tpTimeCritical to
thread priority, but without any success.
Try changing the application priority:
SetPriorityClass (GetCurrentProcess, HIGH_PRIORITY_CLASS);
or even REALTIME_PRIORITY_CLASS, but this last one can be dangerous since
Windows may
As you can see
Sorry, no time to examine it in details.
Priority is given to my business customers...
in my code I've also try to set tpTimeCritical to thread
priority, but without any success.
The worker thread check if expected packet number (first four bytes)
corresponds to expected
Hi,
I need to use udp because my application is an h323/sip endpoint.
RTP uses udp sockets to transmit/receive audio/video data.
RTCP can be used to manage packet loss.
But in this case packets are not lost by the network. If I use wireshark
I can see all the packets.
I think that there is a
I need to use udp because my application is an h323/sip endpoint.
RTP uses udp sockets to transmit/receive audio/video data.
RTCP can be used to manage packet loss.
OK, good.
But in this case packets are not lost by the network. If I use wireshark
I can see all the packets.
I'll assume you
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