[LARTC] What is wrong here (continued...)?

[Mark Williams (MWP)]

> On Friday 24 December 2004 08:42, Mark Williams (MWP) wrote:
> > > On Thursday 23 December 2004 17:52, Mark Williams (MWP) wrote:
> > > > > >As you can see class 25 has priority 8, so all other traffic should
> > > > > > get preference, which is not happening.
> > > > > >It almost seems like all the priorities are reversed...
> > > > >
> > > > > Err... I haven't checked the docs, but I think that's because the
> > > > > priorities are the other way around...
> > > >
> > > > Nope, the HTB man page says:
> > > >
> > > >       prio priority
> > > >               In the round-robin process, classes with the lowest
> > > >               priority  field are tried for packets first. Manda-
> > > >               tory.
> > > >
> > > > I did actually try reversed priorities after i made the graph, etc
> > > > though. It just made things worse... so they are in the correct order.
> > >
> > > If you have classes with different prio's, you have to know what's going
> > > on. The class with the lowest prio has the highest priority.  This means
> > > that that class will get the lowes delay ONLY if this class is not
> > > sending more then the configured rate.  This also means that this class
> > > will get the remaining bandwidth of the parent AFTER the other child
> > > classes are served.
> >
> > Ok, so priorities are ignored as soon as used bandwidth of a class goes
> > above the "rate" setting?
> If a class goes aboive the rate setting, the class will get a bad (big) delay.  
> If it stays under the rate, it will get a low delay.
> 
> So prio does 2 things, and in most cases you don't need prio to do what you 
> want to do.  Prio is perfect to speed up low rate traffic like ack, telnet, 
> ssh (no scp), ...

I see...

Ok, ive just tried:

class add dev $INTERFACE parent 1: classid 1:1 htb rate 256kbit
class add dev $INTERFACE parent 1:1 classid 1:20 htb rate 256kbit ceil 256kbit prio 1
class add dev $INTERFACE parent 1:1 classid 1:25 htb rate 32kbit ceil 128kbit prio 8

Even with this, class 25 still seems to get preference of traffic... it just
sticks at 128kbit outbound no matter what class 20 is doing.

With what youve said above, i cant see how this is the case?

Thanks again, and Merry Christmas to all,
 Mark.