[LARTC] burstable with tc

[LARTC] burstable with tc

[Rohan Almeida]

Hi,
Is it possible to avail of burstable option while
controlling bandwidth using tc?
Let me explain.. :-)
I could successfully allocate an ip(or class) a certain bandwdith
limit, and without giving a bounded parameter, it borrowed 
bandwidth when available.
But i also want an upper limit.
Cause, the lower limit works fine.
ie. when there are other ips online, this particular ip
does not go above the lower limit.
Once the other ips go offlline, this particular ip
starts borrowing all the "available" bandwdith.
"available" is the key word here,
After it starts borrowing bandwdith I also want it
to have an upper limit.
Something like, giving a user a bandwidth restriction of
64Kbps to 256Kbps on a 2Mbps network.

Thanx

--
arc_of_descent
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Re: [LARTC] burstable with tc

[Stef Coene]

Hi,

I suppose you are using CBQ ?  You can create more classes to achieve it. 
> Something like, giving a user a bandwidth restriction of
> 64Kbps to 256Kbps on a 2Mbps network
Gives :
cbq qdisc
  \ bounded class rate = 2Mbps
      \ bounded class rate = 256 Kbps
      |   \ class rate = 64Kbps

      \ other class rate = 512 Kbps
      \ other class rate = 512 Kbps
      \ other class rate = 512 Kbps
      \ ...
But I think it will not the give the results where you are looking for.
Or use htb :)
Htb has a ceil parameter to ceil a class so it does exactly what you want.  
With rate you can specify the minimum rate and with ceil the maximum rate.

Stef

On Tuesday 02 July 2002 11:09, Rohan Almeida wrote:
> Hi,
> Is it possible to avail of burstable option while
> controlling bandwidth using tc?
> Let me explain.. :-)
> I could successfully allocate an ip(or class) a certain bandwdith
> limit, and without giving a bounded parameter, it borrowed
> bandwidth when available.
> But i also want an upper limit.
> Cause, the lower limit works fine.
> ie. when there are other ips online, this particular ip
> does not go above the lower limit.
> Once the other ips go offlline, this particular ip
> starts borrowing all the "available" bandwdith.
> "available" is the key word here,
> After it starts borrowing bandwdith I also want it
> to have an upper limit.
> Something like, giving a user a bandwidth restriction of
> 64Kbps to 256Kbps on a 2Mbps network.
>
> Thanx

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.openprojects.net
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Re: [LARTC] burstable with tc

[Rohan Almeida]

Stef Coene wrote:

> I suppose you are using CBQ ?  You can create more classes to achieve it.

Yes i am using cbq

> Gives :
> cbq qdisc
>   \ bounded class rate = 2Mbps
>       \ bounded class rate = 256 Kbps
>
>       |   \ class rate = 64Kbps
>
>       \ other class rate = 512 Kbps
>       \ other class rate = 512 Kbps
>       \ other class rate = 512 Kbps

I'm sorry. I dont understand
Maybe i'll switch to htb 
Thanx
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Re: [LARTC] burstable with tc

[Stef Coene]

On Tuesday 02 July 2002 12:41, Rohan Almeida wrote:
> Stef Coene wrote:
> > I suppose you are using CBQ ?  You can create more classes to achieve it.
>
> Yes i am using cbq
>
> > Gives :
> > cbq qdisc
> >   \ bounded class rate = 2Mbps
> >       \ bounded class rate = 256 Kbps
> >
> >       |   \ class rate = 64Kbps
> >
> >       \ other class rate = 512 Kbps
> >       \ other class rate = 512 Kbps
> >       \ other class rate = 512 Kbps
>
> I'm sorry. I dont understand
> Maybe i'll switch to htb
That was the purpose :)

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.openprojects.net
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