Steve

From what i read here and from what others have suggested i can only surmise that you tried almost everything besides the simplest thing .

out of the box CentOs installs proftpd (AFAIK ) , this ftp engine has a simple too called mod_shaper
which allows as you can assume shape traffic rates .

example of the  configuration is :
<IfModule mod_shaper.c>
   ShaperEngine on
   ShaperLog /var/log/ftpd/shaper.log
   ShaperTable /var/log/ftpd/shaper.tab
   # Enableing FXP
   AllowForeignAddress     on

   # An overall rate (in KB/s) must be set.  This line explicitly
   # sets both the download and upload rates to be the same.
***    ShaperAll downrate 100 uprate 100

This is the line to manipulate

   # Allow all system users to see shaper info
   #ShaperControlsACLs info allow user *

   # Allow FTP admins to alter settings both overall and per-session
   ShaperControlsACLs all,sess allow group ftpadm


 </IfModule>

you'll need to see if the module was installed in the initial installation , and if not - download it and compile it .


Assaf

Steve Totaro wrote:
I have searched google and came up with too many options and packages that may or may not work for my needs, most articles seem to be for setting up routers. Maybe someone on the list can give me some better insight.

I have monitoring turned on my "shift eight (tm)" (Asterisk ;-)) box for all calls. We have over one hundred agents and tons of recordings in wav format. I also have a cron job that runs a script to mux the in and out files and ftp them to a NAS device and it runs every five minutes. The NAS device and the * box are both directly connected to a Cisco Gigabit switch. I have had complaints of calls fading in and out and also cutting off. After reviewing the recordings, some of these complaints seem valid and I suspect the sheer bandwidth of the FTP traffic is causing the issues. I also run nagios checks on the box and get ping warnings on a regular basis. My question is, how can I throttle the FTP (Standard with dist) transfers using out of the box CentOS4.3 (or any easy to use, low learning curve package)? I thought about FTPing the files at less frequent intervals but that just makes the issue less frequent but last longer. I would like to accomplish throttling FTP on the Linux box with a solution that is not too elegant since this is a production machine in a busy call center. If I cannot do it on the * box I guess my next step is to see if the Cisco Gigabit switch has any QoS functionality.
Thanks,
Steve
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Assaf Flatto
Atelis IT Manager
Cellular: +972-54-5679230
e-mail: [EMAIL PROTECTED]

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