* Re: [LARTC] 95th percentile billing
2004-02-19 10:53 [LARTC] 95th percentile billing Will Tatam
@ 2004-02-21 1:41 ` Roy
2004-02-22 13:01 ` Stef Coene
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Roy @ 2004-02-21 1:41 UTC (permalink / raw)
To: lartc
You have good provider,
this is very usefull, because you can manage your trafic very efectively.
it is esay to limit trafic, to 1mbit, but you can set cburst to some very
large nunber like 3-10 mb
also you can do mere complex rules, if you luke by clasifying trafic by port
or better use connbytes to manage trafic by filesize,
I am using such script on my much slower connection
together with imq
http://pupa.da.ru/imq
----- Original Message -----
From: "Will Tatam" <will@netmindz.net>
To: <lartc@mailman.ds9a.nl>
Sent: Thursday, February 19, 2004 12:53 PM
Subject: [LARTC] 95th percentile billing
> I am just in the process of swapping ip transit supplier and my
> new
> supplier is providing an open 100Mb/s connection but billing me on the
> basis of using less than 1Mb/s for 95% of the time
>
> What would be the ideal for me would be setting up my box so that it
> always complied with this.
>
> i.e i want to limit my own connection speed to 1Mb/s but have a suitably
> large bit bucket so that i can burst higher for short periods
> The ideal would be a setup where the average speed cap worked out over
> serveral hours. If this were not possible even a few seconds of burst
> would help given that most of the files being downloaded from the
> webserver are only a few k
>
> Is something along these lines possible or have i miss understood the
> documentation
>
> --
>
> Will Tatam
> ------------------------------------------------------------
> Email / JID will@netmindz.net
> Web www.netmindz.net
> PGP Key www.netmindz.net/will/will_tatam.asc
> ------------------------------------------------------------
> Registered Linux user 294695
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [LARTC] 95th percentile billing
2004-02-19 10:53 [LARTC] 95th percentile billing Will Tatam
2004-02-21 1:41 ` Roy
@ 2004-02-22 13:01 ` Stef Coene
2004-02-27 12:50 ` Will Tatam
2004-02-27 20:38 ` rubens
3 siblings, 0 replies; 5+ messages in thread
From: Stef Coene @ 2004-02-22 13:01 UTC (permalink / raw)
To: lartc
On Saturday 21 February 2004 02:41, Roy wrote:
> You have good provider,
> this is very usefull, because you can manage your trafic very efectively.
> it is esay to limit trafic, to 1mbit, but you can set cburst to some very
> large nunber like 3-10 mb
That's not such a good idea. burst/cburst is for small burst.
If you use the configured cburst (so you send more packets then the ceil), you
have to wait some time to be able to reuse the cburst. The bucket with
ctokens has to rebuild and this can only if you use less bandwidth then the
ceil.
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.openprojects.net
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [LARTC] 95th percentile billing
2004-02-19 10:53 [LARTC] 95th percentile billing Will Tatam
2004-02-21 1:41 ` Roy
2004-02-22 13:01 ` Stef Coene
@ 2004-02-27 12:50 ` Will Tatam
2004-02-27 20:38 ` rubens
3 siblings, 0 replies; 5+ messages in thread
From: Will Tatam @ 2004-02-27 12:50 UTC (permalink / raw)
To: lartc
Stef Coene wrote:
>On Saturday 21 February 2004 02:41, Roy wrote:
>
>
>>You have good provider,
>>this is very usefull, because you can manage your trafic very efectively.
>>it is esay to limit trafic, to 1mbit, but you can set cburst to some very
>>large nunber like 3-10 mb
>>
>>
>That's not such a good idea. burst/cburst is for small burst.
>If you use the configured cburst (so you send more packets then the ceil), you
>have to wait some time to be able to reuse the cburst. The bucket with
>ctokens has to rebuild and this can only if you use less bandwidth then the
>ceil.
>
>Stef
>
>
>
How do cable modems limit ?
Here in tne uk you downloads always seam to start at wirespeed and then
drop to the speed your paying
Can anyone who is on a burstable connection provide any example of how
they allow busting for short periods
--
Will Tatam
------------------------------------------------------------
Email / JID will@netmindz.net
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See http://www.jabber.org/ to find out more about the most
advanced cross platform, open source enterprise messaging
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^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [LARTC] 95th percentile billing
2004-02-19 10:53 [LARTC] 95th percentile billing Will Tatam
` (2 preceding siblings ...)
2004-02-27 12:50 ` Will Tatam
@ 2004-02-27 20:38 ` rubens
3 siblings, 0 replies; 5+ messages in thread
From: rubens @ 2004-02-27 20:38 UTC (permalink / raw)
To: lartc
> How do cable modems limit ?
That's a design decision. One network might choose the DOCSIS way and
program the cable-modems to do the limiting, other network might prefer
keeping the cable modem at highest speed possible and limit the speed in
a B-RAS, a broadband aggregation router (usually a big/expensive hardware
from Cisco, Juniper or RedBack).
> Here in tne uk you downloads always seam to start at wirespeed and then
> drop to the speed your paying
All shaping mechanisms will perform like this at some time scale. If it's
on sub-second window you probably won't notice.
> Can anyone who is on a burstable connection provide any example of how
> they allow busting for short periods
The trick here will be tuning your burst time/rate/bytes to match the
service provider in order to get the most of your connection. But that
would usually apply to ingress shaping; for a cable/xDSL connection, I
prefer limiting only on egress.
Rubens
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^ permalink raw reply [flat|nested] 5+ messages in thread