[LARTC] tc and ntop inconsistent data flow

[Stef Coene]

On Thursday 06 January 2005 16:33, Mehmet Ali Suzen wrote:
> Dear List,
> Sorry for the dublicated email but I couldn't get any answer.
>
> I am trying to limit some IP blocs with tc with following three step.
>
> # interface
> tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 256kbit #
> class tc class add dev eth0 parent 1: classid 1:1 cbq rate 64kbit \
> allot 1500 prio 5 bounded isolated
> # rules
>   # download
> tc filter add dev eth0 parent 1: protocol ip prio 16 u32 \
> match ip dst 10.0.1.0/24 flowid 1:1
>   # upload
> tc filter add dev eth0 parent 1: protocol ip prio 16 u32 \
> match ip src 10.0.1.0/24 flowid 1:1
>
>
> Problem is when I try to measure traffic with ntop (www.ntop.org), it is
> seen that overall traffic which that ip block limited to is
> much higher then 64kbit, actually it is about 500Kbps which
> signifies that tc do not limit properly. What could be the reason
> of this inconsistancy? How could I limit 64 Kbps? Is the above
> configuration correct?
Remove the isolated parameter and try it again.
I have some working cbq scripts on http://docum.org on the test pages.

Stef