[LARTC] Queuing Algo = Scheduler ???

[LARTC] Queuing Algo = Scheduler ???

[Rick Goh]

Hi all,

Is WRR a queuing algo or is it a scheduler??

Is PRIO = Simple 3-band scheduler? Is there any difference between PRIO and
the prio used in CBQ??
If PRIO is used as in qdisc root, does it service the 1st band traffic first
before 2nd and then 3rd band?

Is TBF a queuing algo or a scheduler??

The many documentations found on the web apparently interchange the terms
queuing algorithm and scheduler frequently...


Regards.





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Re: [LARTC] Queuing Algo = Scheduler ???

[Christian Worm Mortensen]

Hi,

> Is PRIO = Simple 3-band scheduler?

Yes (and queueing discipline ;-) ).

> If PRIO is used as in qdisc root, does it service the 1st band traffic first
> before 2nd and then 3rd band?

Yes. It only sends from band n if there is nothing to send in bands less than n. That's essesially the same as CBQ does except that CBQ sometimes does other things in order to fullfill other reqirements.

> The many documentations found on the web apparently interchange the terms
> queuing algorithm and scheduler frequently...

Yes, so don't be confused by that.


Christian


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