Re: Error Recovery in FTP

[Rob Berendt <rob@xxxxxxxxx>]

In ANSI x.12 EDI there are hash or control totals built in and some optional 
ones.  Perhaps we need to 
follow this concept in datafiles that we transmit using FTP.





LiuKeanKeong@hlbb.hongleong.com.my on 03/18/99 12:24:33 AM
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Subject:        Error Recovery in FTP

I read from the FTP Specification RFC 959 that there is 'no provision
for detecting bits lost or scrambled in data transfer'. A restart
procedure is provided to retransmit but controlled at user application
level. (compared to SNA which handles it for us at a lower level?)

Does this mean that there is a remote chance that a FTPed file may have
bits that are in error? In which case we would need to program in a
checksum feature into our FTP file transfer programs? I mean, for
critical data files.  not for bitmap, jpg or wav files which are
tolerent of bit errors!  :-)

any comments welcomed. thanks.

kk liu.
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