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RE: ftp vs scp transfer speed.



On Sun, 2003-03-09 at 11:38, Chad Skinner wrote:
> 
> > However, a 120 KBps (note B for bytes, as opposed to b for bits)
> > connection implies that you have roughly a 1 Mbps link. Normal for a DSL
> 
> Actually, I have a 100Mbps Duplex link from one server to a client
> workstation. This is through two switches with a router and gigabit backbone
> interconnecting the switches. I am not the network engineer so I know no
> other details.
> 
> The file is a compressed and is 80MB so it should not compress much at all.
> Seriously, using ftp the transfer took 15-20 minutes scping the file to 7-8
> seconds. MD5s on the results match. I am wondering what I could have setup
> to cause this descrepency in performance? It is a straight RHv8 box with the
> stock vsFTPd and new rpms downloaded from proftd. I guess I found it strange
> when the network guys were showing me that they could upload the file via
> ftp to their windows box at 90 times faster than the FTP server on Linux ...
> That's just wrong, I mean something has to be! Does linux throttle ftp
> connections by default and not scp?
> 

DO either the ftp client or server have a bandwidth limiting feature to
keep from chewing up too much bandwidth?  what about the router? 
Perhaps ftp is set to a lower qos or what ever it is called so users
trying to DL 80MB files don't swamp the network.

Bret





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