Internet Library/Telnet. time-InetTelnetWrite

Hello

I set up a server Telnet to echo on an FPGA, and I want to communicate with him using the ICB and the library Internet/Telnet. It works very well so far, but between the reading of the echo response and send the following information, there is a delay of 25 seconds (I monitor traffic with wireshark). What could cause this delay?

#include 
#include
#include
#include
#include

public static int gTelnetHandle = - 1;
public static int gResult = - 1;

void main (void)
{
long unsigned I = 0;
given const char [31] = "Hello";
const char data2 [31] = 'Sharon die Waldfee;

char readBuffer [256];
int bytesRead;
 
Open telnet
gTelnetHandle = InetTelnetOpen ("192.168.1.10", 7, 0);

gResult is InetTelnetWrite (gTelnetHandle, data, '\r\n', 6, 0, 25000);.
gResult = InetTelnetRead (gTelnetHandle, readBuffer, 10, & bytesRead, 25000);

It takes 25 seconds until I see (in wireshark) that he sent this package after receipt of the echo, read by the top line.

gResult = InetTelnetWrite (gTelnetHandle, data2, '\r\n', 17, 0, 25000);
gResult = InetTelnetRead (gTelnetHandle, readBuffer, 17, & bytesRead, 25000);
 
close the telnet
gResult = InetTelnetClose (gTelnetHandle);

}

Best regards Florian

Just a wild guess here, but I would say that the second 25 delay is probably related to the ms 25000 timeout you have programmed.

JR

Tags: NI Software

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