Re: PRIO and CBQ

[doudouyam <doudouyam@xxxxxxxxx>]

I found a script at http://www.docum.org/docum.org/ which answer at my question :

tc qdisc del $DEV root
tc qdisc add $DEV root handle 10: cbq bandwidth 10mbit avpkt 1000
tc class add $DEV parent 10:0 classid 10:1 cbq bandwidth 10mbit rate $RATE_TOT $OPTION prio 3 bounded isolated
 
tc qdisc add $DEV parent 10:1 handle 20: prio

Is it correct ?

2006/7/19, doudouyam <doudouyam@xxxxxxxxx>:

I've made a mistake in the second case:

tc qdisc add dev $DEV root handle 1: prio band 1
tc class add dev $DEV parent 1: classid 1:2 cbq …
tc class add dev $DEV parent 1:2 classid 1:3 cbq …
tc class add dev $DEV parent 1:2 classid 1:4 cbq …

tc qdisc add dev $DEV parent 1:1 handle 10: pfifo
tc qdisc add dev $DEV parent 1:3 handle 30: sfq
tc qdisc add dev $DEV parent 1:4 handle 40: sfq

            1:(prio)
           /          \
          /            \
       1:1            1:2
         |             /   \
         |            /     \
        10:       1:3    1:4
        (pfifo)      |        |
                      |        |
                     30:     40:
                    (sfq)   (sfq)

2006/7/19, doudouyam < doudouyam@xxxxxxxxx >:

Hi,
I'm work on traffic shaping and I would like to know if it's possible to mix differents Queueing Disciplines ??
I would like to combine the proporties of a PRIO discipline with that of a CBQ discipline.
I read some documentation and I found nothing about that, can you help me ?

I think to try something like that :

tc qdisc add dev $DEV root handle 1: cbq …
tc class add dev $DEV parent 1: classid 1:1 cbq …
tc class add dev $DEV parent 1:1 classid 1:10 cbq …
tc class add dev $DEV parent 1:1 prio

Normally I've this tree :

           1:(cbq)
               |
               |
             1:1
           /      \
          /         \
1:10(cbq)      1:??(prio)

Or something like that :

tc qdisc add dev $DEV root handle 1: prio band 2
tc class add dev $DEV parent 1: classid 1:2 cbq …
tc class add dev $DEV parent 1:2 classid 1:3 cbq …
tc class add dev $DEV parent 1:2 classid 1:4 cbq …

tc qdisc add dev $DEV parent 1:1 handle 10: pfifo
tc qdisc add dev $DEV parent 1:3 handle 30 sfq
tc qdisc add dev $DEV parent 1:4 handle 40 sfq

            1:(prio)
           /          \
          /            \
       1:1            1:2
         |             /   \
         |            /     \
        10:       1:3    1:4
        (pfifo)      |        |
                      |        |
                     30:     40:
                    (sfq)   (sfq)

Is it possible ??? (the first solution seems to me not possible)


Thanks.

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