Re: [tcng] drawing with gnuplot

Linux Advanced Routing and Traffic Control

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raptor@unacs.bg wrote:
> Is there a way with tcsim to see how different channels got used i.e. say
> I have three channels

There's no general way to distinguish classes (*). However, since
you select by source IP address, you can let tcsim_filter split flows
by that:

tcsim ... | tcsim_filter ... src | tcsim_plot

(*) In principle, I could export skb->tc_index, which is always set
    when using the egress or ingress qdiscs, but since skb->tc_index
    gets assigned some more-or-less arbitrary values, additional
    information would be needed to make this data useful. Perhaps
    something to consider after switching from tcsim to umlsim.

> I read the whole tcng there is no one full example of say cbq and/or
> tbf usage (for beginners :") ).  :"(

Not sure if this helps, but there is examples-ng/tbf

In general, the tcng documentation doesn't try to explain how to use
the qdiscs (semantics, parameters, etc.), since all that is basically
the same as with "tc".

> PS. I got errors on "make test", tommorow will save it on fdd and will
> post them on the list ....

"make test" errors are always interesting :-)

- Werner

-- 
  _________________________________________________________________________
 / Werner Almesberger, Buenos Aires, Argentina         wa@almesberger.net /
/_http://icapeople.epfl.ch/almesber/_____________________________________/
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