Re: FTP limitation

[Vern Hamberg <vhamberg@xxxxxxxxxxx>]

There are actually 2 timeout setting - one for data and one for 
inactivity, as I recall. Only one is set in the CHGFTPA command.

http://search400.techtarget.com/tip/Setting-FTP-time-outs has some 
really good information - in short, to set both timeouts to 5 minutes 
from your Windows client, find a way to run this --

QUOTE TIME 900 900

HTH
Vern

On 5/17/2012 7:11 AM, John Jones wrote:
> FTP has a "control channel" and a "data channel".  What could be happening
> is the transfer is taking long enough that the control channel is timing
> out and aborting the transfer even though the data channel is busy.  This
> timeout is controlled in the FTP server settings.  There could also be a
> firewall timeout issue at play.  We used to encounter this when FTPing
> large files but I can't remember if it was the firewall or server that was
> at fault.  Wait .. Spot-checking our dev LPAR I see we raised our
> inactivity timeout (default: 5 minutes) to the max value.  CHGFTPA/F4 lets
> you see the settings.
>
> Alternate: Have you tried any other FTP clients?
> http://filezilla-project.org/ is free.  There's also CuteFTP and a host of
> others.
>
> A final thought which is something of a longshot but does your environment
> have an IDS/IPS or DLP network monitor?  Basically an appliance that might
> be finding something in the data that it thinks should be blocked.
>
> On Wed, May 16, 2012 at 11:31 AM, Dave Snyder<DSnyder@xxxxxxxx>  wrote:
>
> > I have been struggling with an issue for several months and am getting no
> > resolution from those I am working with, on all ends.
> > I am trying to FTP (using WS-FTP) a text file from an FTP server to a
> > local machine - have tried Windows XP and 7 with no differences. The file
> > gets "truncated", chopped down to 3,260,000 bytes if it is more than that.
> > We get the entire thing if it is less. I get no errors on either end.
> > Anyone have any idea what might be restricting this file transmission size?
> > I tried it from my home and it worked so I am guessing there is something
> > network related on our front doing it, but we cannot figure it out. Any
> > help is appreciated.
> >
> > Dave
> >
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