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Thank you...
-------Original Message-------
Date: 04/23/04 15:54:43
Subject: RE: [WS_FTP Forum] asymetrical performance
Thanks,
In my case we can GET at high rate but PUT is VERY slow. We have WS_FTP Servers on both networks and both have the same firewalls and rules (Same company on both sides). We tested this client on each network connecting to server on the other network and only one server is slow (4K transfer rate or less on PUT 100K on GET T1 on each side) at first we saw high CRC errors on that server so we changed the network adapter card and that problem went away but we still see this one direction one server slowdown intermittently. There is no "rhyme or reason" to when the problem starts or when it goes away (or at least we can't see the pattern if its there).
Lorne Ludwig
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James Carcary
Sent: Friday, April 23, 2004 12:22 PM
To: [EMAIL PROTECTED]
Subject: RE: [WS_FTP Forum] asymetrical performance
Hi,
We experienced something similar between our company and one of our affiliates. If we were doing FTPs across a direct link between our two networks, transfer speeds were consistent. Once we went across a firewall between us (Symantec on our side, and PIX on their side), we noticed a similar problem. We were moving files between a Mainframe and our WS_FTP server on W2K. It didn't matter who was the server and who was the client (we wanted to prove that it was data direction flow that was the problem), we got one transfer rate to the Mainframe, and less than half the rate coming back. We don't know which firewall is the issue, but that is where we are currently investigating.
I hope this info helps.
James Carcary
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| "Lorne Ludwig" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
04/22/2004 11:47 AM
Please respond to WSFTP_Forum
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To: <[EMAIL PROTECTED]>
cc:
Subject: RE: [WS_FTP Forum] asymetrical performance |
Sorry that I can't add much to this except that I too have seen this problem
intermittently on one of my WS_FTP servers. Very hard to Troubleshoot as the
problem will come for a few days and then go away for a while. To date I
have received no explanation for this. Anyone else?
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Matt Sweeney
Sent: Thursday, April 22, 2004 8:31 AM
To: [EMAIL PROTECTED]
Subject: [WS_FTP Forum] asymetrical performance
Hi,
this is probably a network issue, but I'd thought I'd see if anyone has seen
something similar.
We have WsFTP 4.0.2 running on a windows 2000 server. Its connected to a
gigabit switch which is then connected to a checkpoint fw then the internet.
The internet connection is a 3 MB ethernet feed from Level3
I have several clients (locate around the country) that can download at
~30kB/sm but they can upload at 700+ kB/s. I have other clients that can
download at T1 speeds (160 -190 kB/s).
There is no bandwidth throttling on the firewall or switch. All network
connections have been verified as full duplex/100 MB. I can download from
another server connected to the same switch as the ftp server at good speed
(8500+ kB/s).
I've updated the nic drivers on the ftp server (intel server nics) and
replaced the motherboard on the server (Dell PE1650). I've also tried
different switch ports.
Is it possible to do bandwidth throttling on a per user or usergroup in
Wsftp? I would think its a network issue, but the fact that the client can
upload at wire speed confuses me.
Thanks in advance
matt
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