One data transfer uses one port.  However, even file listings are counted as 
a data transfer.  You can reuse ports, but not always straight away because 
of the time wait state.  So lets say you do a file listing and it uses your 
one and only data port...then you cannot use that port again for a minute or 
so, you wont be able to transfer a file during that period.  For a single 
user, transferring large files, 10 ports should be enough, but if you start 
transferring many tiny files, or get many users, you may run into problems.

Dan

----- Original Message ----- 
From: "Allan Fernandes" <[EMAIL PROTECTED]>
To: "ICS" <twsocket@elists.org>
Sent: Monday, March 20, 2006 12:00 PM
Subject: Re: [twsocket] Odd Behaviour


> Hi,
>
>>> You need a bigger data port range than that.  This
>>> will allow only one data transfer (can be a file
> listing) then you will have problems with ports
>>> being in time_wait state, so having no available
> ports.
>
>
> Please correct my interpretation if I am wrong.
>
> One Ftp transfer can make use of more than one data
> port for transfering 1 file ?
>
> If I have correctly understood that then, will a range
> of about 10 ports (which I am sure are unused) be ok
> to tranfer files of upto 4 GB ?
>
>
> Regards
> Allan
>
>
>
>
>
>
> ___________________________________________________________
> Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with 
> voicemail http://uk.messenger.yahoo.com
> -- 
> To unsubscribe or change your settings for TWSocket mailing list
> please goto http://www.elists.org/mailman/listinfo/twsocket
> Visit our website at http://www.overbyte.be
> 

-- 
To unsubscribe or change your settings for TWSocket mailing list
please goto http://www.elists.org/mailman/listinfo/twsocket
Visit our website at http://www.overbyte.be

Reply via email to