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December 21, 2005

Partial file transfers

From the WS_FTP help files:

"If WS_FTP consistently returns some number of bytes of a file and can never retrieve the whole file, you need to set the Maximum Transfer Unit (MTU) in your program stack to 576. For more information on setting the MTU, go to the KnowledgeBase on the Ipswitch Web site, www.ipswitch.com, and search for "MTU."

If WS_FTP sometimes does not return a complete file and leaves off from 50 to 512 bytes, you could be using an inadequate network stack. Some network stacks do not properly handle data packets that have the FIN flag set. These stacks improperly return a length of zero to a "blocking recv socket" call and do not make all the data available.

If you're not using the Microsoft TCP/IP stack (part of the Windows 95, 98, 2000, and NT operating systems), contact your network stack provider for an updated version of the network stack."

Posted by Van K at December 21, 2005 09:55 AM digg this add to del.icio.us add to My Web Furl this page

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