Dart Support Forum|PowerTCP Sockets for .NET (Secure and Standard)|Send Error on Large Blocks

Author	Forum: PowerTCP Sockets for .NET (Secure and Standard) Topic: Send Error on Large Blocks
sommerauer From: WEiz, Austria Posts: 1 Member Since: 05/09/03	posted May 9, 2003 2:59 PM I'm trying to send large data blocks over a TCP connection, that is send is called with a data buffer with about 1.000.000 bytes. Everything worked fine when the sender routine executes on a WinNT oder Win2k machine. But on WinXPpro (SP1) a problem arises: if the data block size is > 233472 bytes (= 0x39000) the send routine terminates with an error code of 10054 (WSAECONNRESET), as if the server would have terminated the request. From various trials (different operating systems and so on) I know that the problem is on the sender's side. I've tried with other languages (pure C++), other compilers (National Instruments CVI) and so on: the result is always the same: Windows XP can not send data buffers > 0x39000 bytes. Is there anything known on this issue - if an simple example is needed I can provide one in VB.net Thx in advance E. Sommerauer
K M Drake From: Utica, NY USA Posts: 3406 Member Since: 07/14/00	posted May 14, 2003 10:56 AM Hi, I was unable to reproduce this problem on my XP machine. Regardless, you should really break up data of this size into chunks, and make several calls to Send instead. -ken

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