3 messages in net.nether.puck.cisco-nsp[c-nsp] Cisco 3550 QoS to limit FTP
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ni...@precisionmillworks.comJan 3, 2005 6:16 pm 
Ted MittelstaedtJan 4, 2005 12:31 am 
Daniel HagertyJan 4, 2005 7:11 am 
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Subject:[c-nsp] Cisco 3550 QoS to limit FTPActions...
From:Ted Mittelstaedt (te@toybox.placo.com)
Date:Jan 4, 2005 12:31:50 am
List:net.nether.puck.cisco-nsp

IMHO it's a lot easier to simply implement traffic shaping to the one machine that's doing the FTP transfers. Let's say your connected via T1, well then just allocate 384K to that machine's IP number. I have never found the prioritization stuff to work worth a damn unless you had a link like a point-to-point link where the link was guarenteed bandwidth.

Granted this restriction is in force at night too even when you have the bandwidth - but it sounds like you don't want to do these transfers at night.

If it was me I'd just simply restrict them to at night and let the fools squawk about it. Even if your dumping a full T1 to your clients during the day, unless they themselves have multiple T1s your going to be tossing their Internet connection into the toilet right when their own users want to use it.

Ted

-----Original Message----- From: cisc@puck.nether.net [mailto:cisc@puck.nether.net]On Behalf Of ni@precisionmillworks.com Sent: Monday, January 03, 2005 3:11 PM To: cisc@puck.nether.net Subject: [c-nsp] Cisco 3550 QoS to limit FTP

I'm trying to implement QoS on a 3550, here's the situation. I've got about 400 hosts on my network. One machine is used to ftp large files(2-4gig) to clients. Currently we only transfer these files at night now, because it causes packet loss on our network. I want to be able to give all of the FTP traffic coming from this machine a low priority, telnet traffic on the entire network the highest priority and all other traffic a medium priority, I don't mind giving all FTP traffic on the network the lowest priority but it isn't needed. What's the best way to approach this? I've looked at a lot of the documentation but it's a little overwhelming with all of the options. Thanks for any input.

Nick Travis