[LARTC] prio/pref weirdness

[Mihai RUSU <dizzy@roedu.net>]

Hi

I am playing with filters and cbq/htb and I have found this strange thing.
Add some filters using the prio/pref (they seem an alias to me)
parameter like:
tc filter add dev eth0 protocol ip parent 1: pref 5 u32 match ip dst 1.2.3.4
tc filter add dev eth0 protocol ip parent 1: pref 10 u32 match ip dst 2.3.4.5

And try tc filter show dev eth0, you will see that every filter you have
is multiplied by the number of different prio/pref values you have used.

Thus it looks like you would do this:

tc filter add dev eth0 protocol ip parent 1: pref 5 u32 match ip dst 1.2.3.4
tc filter add dev eth0 protocol ip parent 1: pref 5 u32 match ip dst 2.3.4.5

tc filter add dev eth0 protocol ip parent 1: pref 10 u32 match ip dst 1.2.3.4
tc filter add dev eth0 protocol ip parent 1: pref 10 u32 match ip dst 2.3.4.5

Why is that? Is it a tc bug? Or is it normal? What it happens if I use
filters of different pref/prio ? In which order are they checked ?


Thanks

----------------------------
Mihai RUSU

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