[LARTC] throtling bandwidth

[LARTC] throtling bandwidth

[Payal Rathod]

Hi,
My branch office as got a 256Kbps b/w from their service provider at a 
very very high rate per Mb. They don't require 256Kbps at all but the 
ISP does not offer anything low.  Can we restrict the bandwith to say 
64Kbps nothing fancy? How do I go about it? 

With warm regards,
-Payal

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Re: [LARTC] throtling bandwidth

[Oscar Mechanic]

Instead of restricting the speed use iptables ipt_account to restrict
usage and the put in a script on cron to zero the counters. That way you
get to budget and the users get best experience.


On Thu, 2005-11-10 at 10:57 -0500, Payal Rathod wrote:
> Hi,
> My branch office as got a 256Kbps b/w from their service provider at a 
> very very high rate per Mb. They don't require 256Kbps at all but the 
> ISP does not offer anything low.  Can we restrict the bandwith to say 
> 64Kbps nothing fancy? How do I go about it? 
> 
> With warm regards,
> -Payal
> 
> _______________________________________________
> LARTC mailing list
> LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc

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Re: [LARTC] throtling bandwidth

[Brett Charbeneau]

On Thu, 10 Nov 2005, Payal Rathod wrote:

PR> My branch office as got a 256Kbps b/w from their service provider at a 
PR> very very high rate per Mb. They don't require 256Kbps at all but the 
PR> ISP does not offer anything low.  Can we restrict the bandwith to say 
PR> 64Kbps nothing fancy? How do I go about it? 

Payal,

	I've had success limiting bandwidth on interfaces for our wireless 
networks. Patrons are coming in with P2P applications that hog the whole pipe if 
you let them. For us, these intefaces are on a firewall with two network cards 
and these statements did the trick limiting traffic to 256K coming and going:

tc qdisc delete dev eth0 root
tc qdisc add dev eth0 root tbf limit 5kb burst 5kb rate 256kbit

tc qdisc delete dev eth1 root
tc qdisc add dev eth1 root tbf limit 5kb burst 5kb rate 256kbit

	You have to at least have iproute2 (or in my case, becuase we use Debian 
"iproute") installed so the "tc" command is recognized.
	Hope this is useful!

-- 
********************************************************************
Brett Charbeneau
Network Administrator         
Williamsburg Regional Library                   
7770 Croaker Road                               
Williamsburg, VA 23188-7064                     
(757)259-4044          www.wrl.org
(757)259-4079 (fax)    brett@wrl.org
********************************************************************


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Re: [LARTC] throtling bandwidth

[Payal Rathod]

On Thu, Nov 10, 2005 at 11:09:18AM -0500, Brett Charbeneau wrote:
> tc qdisc delete dev eth0 root
> tc qdisc add dev eth0 root tbf limit 5kb burst 5kb rate 256kbit
> 
> tc qdisc delete dev eth1 root
> tc qdisc add dev eth1 root tbf limit 5kb burst 5kb rate 256kbit


I have adsl (pppoe) with eth0 as my internal interface and eth1 as 
external. What do I do in this case, I want to limit to 64kbps
Thanks a lot.
With warm regards,
-Payal
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Re: [LARTC] throtling bandwidth

[Brett Charbeneau]

On Thu, 10 Nov 2005, Payal Rathod wrote:

PR> On Thu, Nov 10, 2005 at 11:09:18AM -0500, Brett Charbeneau wrote:
PR> > tc qdisc delete dev eth0 root
PR> > tc qdisc add dev eth0 root tbf limit 5kb burst 5kb rate 256kbit
PR> > 
PR> > tc qdisc delete dev eth1 root
PR> > tc qdisc add dev eth1 root tbf limit 5kb burst 5kb rate 256kbit
PR> 
PR> 
PR> I have adsl (pppoe) with eth0 as my internal interface and eth1 as 
PR> external. What do I do in this case, I want to limit to 64kbps

	Does that make your pppoe interface ppp0? Try issuing an "ifconfig" 
command to see. I'm always confused about how the kernel sees a pppoe interface.
	Give this a try:

tc qdisc delete dev eth0 root
tc qdisc add dev eth0 root tbf limit 5kb burst 5kb rate 64kbps

tc qdisc delete dev eth1 root
tc qdisc add dev eth1 root tbf limit 5kb burst 5kb rate 64kbps


-- 
********************************************************************
Brett Charbeneau
Network Administrator         
Williamsburg Regional Library                   
7770 Croaker Road                               
Williamsburg, VA 23188-7064                     
(757)259-4044          www.wrl.org
(757)259-4079 (fax)    brett@wrl.org
********************************************************************



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Re: [LARTC] throtling bandwidth

[Oscar Mechanic]

Sorry its ipt_quota

iptables -I FORWARD 1 -s 192.16.0.1/24 -m quota --quota 6000 -j ACCEPT
iptables -I FORWARD 2 -s 192.16.0.1/24 -j DENY

All of 192.16.0.0 will be limited to 6M after which they get nothing
more clever things are possible but I will leave it too you.

 quota
       Implements network quotas by decrementing  a  byte  counter  with
each
       packet.

       --quota bytes
              The quota in bytes.

On Thu, 2005-11-10 at 12:09 -0500, Payal Rathod wrote:
> On Thu, Nov 10, 2005 at 04:06:50PM +0000, Oscar Mechanic wrote:
> > Instead of restricting the speed use iptables ipt_account to restrict
> > usage and the put in a script on cron to zero the counters. That way you
> > get to budget and the users get best experience.
> > 
> <lartc@mailman.ds9a.nl>
> Sorry didn't get what you meant. What exactly is ipt_account? Can you 
> give an example?
> Thanks in advance.
> With warm regards,
> -Payal

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Re: [LARTC] throtling bandwidth

[Payal Rathod]

On Thu, Nov 10, 2005 at 12:12:03PM -0500, Brett Charbeneau wrote:
> 	Does that make your pppoe interface ppp0? Try issuing an 
> 	"ifconfig" command to see. I'm always confused about how the 
> 	kernel sees a pppoe interface.

Yes, my ISP assigned IP is given to ppp0
With warm regards,
-Payal
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