Re: CBQ is not limiting bandwidth!!!

[Deepika Kakrania]

 Thanks a lot for the reply. Now it's working fine. But I have another
problem.

 If I set all these rules with bandwith parameter set to 100Mbit, then
results are near to expected results. But when I set bandwidth parameter
to 10Mbit with all other parameters unchanged it doesn't give correct
results.

The results I got for both cases are following.

 BANDWITH	RATE 		WEIGHT		Throughput (as seen using
						 netperf)

 10 Mbit	4 Mbit	        400 Kbit		6.38 Mbps
 10 Mbit	5 Mbit		500 Kbit		7.31 Mbps

 100 Mbit	4 Mbit		400 Kbit		4.08 Mbps
 100 Mbit	5 Mbit		500 Kbit		5.11 Mbps.

Can anyone explain what could be the reason for this? Why I don't get
correct results when I set bandwidth to 10 Mbit?

Thanks in advance.

regards,
Deepika

On Thu, 26 Jul 2001, [windows-1250] Lubomír Bulej wrote:

> Hi,
>
> >   I am defining only one class at m/c router on interface eth1. The tc
> > rules set up for doing so are following.
> >
> >  tc qdisc add dev eth1 root handle 1: cbq bandwidth 10Mbit cell 8 avpkt
> > 1000 mpu 64
> >
> >  tc class add dev eth1 parent 1:0 classud 1:1 cbq bandwidth 10Mbit rate
> > 1kbit allot 1514 cell 8 weigth 100bit prio 5 maxburst 20 avpkt 1000
>
> Add "bounded" at the end of the command... Otherwise the class borrows
> bandwidth from its parent.
>
>
> Regards,
> Lubomir
>