very high latency network problem : 2

Sorry to repost this but I got no responce the first time I posted this
back in december.

It appears that TINI TCP/IP does not follow the Geometric Backoff algorithm
for the retransmit timer.  This has not been a problem until
we started dealing with VERY SLOW networks (800 - 900 ms latency).

Has anyone dealt with anything similar to this?  Is there any workaround
short of switching from TCP to UDP ?

----- repost from original message--------
>I am writing a client/server application that does network io at the
socket level.  I am going over a very high latency
>(1000+ milisecond) network.
>
>The application fails with an IO exception.  I know it is not an
application problem since I can duplicate the same error with
>the Slush FTP command if the ftp server is also across the same slow link.
>
>I can sniff the connection and see an outbound packet.  After about 450
ms, having not seen a TCP ack from the receiver, the
>TINI (assuming the packet was lost ?) retransmits the packet a second
time.  After another 450 ms, a third retransmission. And after a third 450
ms the >TINI shuts down the window (accepting no more data).  We then see
the ack from the original packet but the port is now closed.
>
>Duplicating this from a laptop, we see the second and third wait times
extending to 2,4, and 8 seconds.
>
>I am developing with 1.02f but I have duplicated the problem via FTP with
1.11.  I have not tried any OS newer than 1.11 but the release notes for
the >new releases don't appear to address any related issue.


Thank you.
Fred


_______________________________________________
TINI mailing list
TINI-6tN4nzCoH/[email protected]
To UNSUBSCRIBE, edit your profile, or see list archives:
http://lists.dalsemi.com/mailman/listinfo/tini