[LARTC] TBF settings

[LARTC] TBF settings

[Jean-Francois]

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I presently use TBF with this syntax:

tc qdisc add dev eth0 parent 1:100 tbf buffer=15000/8 LIMIT=30000 MTU=1500

parent class is a cbq with rate=128Kbit

when I want to add PEAK, I get always RTNETLINK error: Invalid argument. Maybe be I don't understand this parameter. What I know about it, it's that it can control short-term burst traffic, and it's what I need to do.

 
---Jean-Francois LemieuxIT CONSULTANTMCJ CONSEIL INC

---
Jean-Francois Lemieux
Directeur des projets
MCJ Conseil Inc.




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[LARTC] TBF settings

[bert]

<PRE>On Fri, Feb 02, 2001 at 08:38:21AM -0800, Jean-Francois Lemieux wrote:

&gt;<i> tc qdisc add dev eth0 parent 1:100 tbf buffer\x15000/8 LIMIT0000 MTU\x1500
</I>&gt;<i> 
</I>&gt;<i> parent class is a cbq with rate\x128Kbit
</I>&gt;<i> 
</I>&gt;<i> when I want to add PEAK, I get always RTNETLINK error: Invalid argument. Maybe be I don't understand this parameter. What I know about it, it's that it can control short-term burst traffic, and it's what I need to do.
</I>
If I remember correctly, you can't 'overspecify' the tbf. So either you set
peak, or you set limit/buffer.

But my recollection is very hazy about this.

Regards,

bert

-- 
PowerDNS                     Versatile DNS Services  
Trilab                       The Technology People   
'SYN! .. SYN|ACK! .. ACK!' - the mating call of the internet


</PRE>

[LARTC] TBF settings

[Jean-Francois]

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 I just try this :

tc qdisc add dev eth0 parent 1:100 tbf peak=128Kbit mtu=1500

I've got the same error; an other idea?



  bert hubert &lt;<A HREF="mailto:ahu@ds9a.nl">ahu@ds9a.nl</A>&gt; wrote: 
On Fri, Feb 02, 2001 at 08:38:21AM -0800, Jean-Francois Lemieux wrote:

&gt;<i> tc qdisc add dev eth0 parent 1:100 tbf buffer=15000/8 LIMIT=30000 MTU=1500
</I>&gt;<i> 
</I>&gt;<i> parent class is a cbq with rate=128Kbit
</I>&gt;<i> 
</I>&gt;<i> when I want to add PEAK, I get always RTNETLINK error: Invalid argument. Maybe be I don't understand this parameter. What I know about it, it's that it can control short-term burst traffic, and it's what I need to do.
</I>
If I remember correctly, you can't 'overspecify' the tbf. So either you set
peak, or you set limit/buffer.

But my recollection is very hazy about this.

Regards,

bert

-- 
PowerDNS Versatile DNS Services 
Trilab The Technology People 
'SYN! .. SYN|ACK! .. ACK!' - the mating call of the internet

---
Jean-Francois Lemieux
Directeur des projets
MCJ Conseil Inc.




---------------------------------
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