FTP uploads using Windows Explorer and Internet Explorer are slower than FTP uploads using command prompt

Summary

FTP uploads using Windows Explorer and Internet Explorer are slower than FTP uploads with the command prompt. This is because Windows Explorer and Internet Explorer have a default send buffer size of 4096 bytes. Due to this default size, FTP uploads initiated from Windows Explorer and Internet Explorer will be slower when compared with command prompt. 

Note: This buffer size is not configurable in current versions of Windows.

More Information

ftp.exe with command prompt does have a configurable send buffer size. To specify a custom buffer size in the command prompt, type in:

ftp.exe -x:buffersize in bytes (for example: 8192)

You will then see the following message:

SendSocketBuffer: 8192 Bytes

The send buffer size is now set for this session and you can then proceed with the FTP connection.



Properties

Article ID: 2388131 - Last Review: Sep 4, 2010 - Revision: 1

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