Thank you Andy! I did''t find why I could''t use the fw
match in ingress. Now it works.
Now I ran into another problem:
When I try to add a pfifo_fast leaf qdisc dor htb
classes it seg.-faults. Is pfifo_fast a special qdisc?
I can succesfully add other type of qdiscs.
I found that a similar problem was reported in
february on a MIPS architecture.
root@zefir:/usr/src# tc qdisc add dev eth0 root handle
1: htb default 10
root@zefir:/usr/src# tc class add dev eth0 parent 1:
classid 1:1 htb rate 100Mbit ceil 100Mbit burst 50k
cburst 150k
root@zefir:/usr/src# tc class del dev eth0 parent 1:
classid 1:1 htb rate 100Mbit ceil 100Mbit burst 50k
cburst 150k
root@zefir:/usr/src# tc class add dev eth0 parent 1:
classid 1:1 htb rate 90Mbit ceil 100Mbit burst 50k
cburst 150k
root@zefir:/usr/src# tc class add dev eth0 parent 1:
classid 1:10 htb rate 10Mbit ceil 100Mbit burst 50k
cburst 150k
root@zefir:/usr/src# tc qdisc add dev eth0 parent 1:1
handle 2: pfifo_fast
Segmentation fault
root@zefir:/usr/src# uname -a
Linux zefir 2.6.12.4 #1 Sun Aug 7 18:17:31 EEST 2005
i686 unknown unknown GNU/Linux
root@zefir:/usr/src# tc qdisc add dev eth0 parent 1:1
handle 2: sfq perturb 10
root@zefir:/usr/src#
I think htb and pfifo_fast assures a better QOS than
htb & sfq because I can priorize interactivity.
Thank you in advance for any sugestions.
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panca sorin wrote:> Thank you Andy! I did''t find why I could''t use the fw > match in ingress. Now it works.It will work on marks set in prerouting if you don''t select packet action in your kernel config (near policer).> > Now I ran into another problem: > When I try to add a pfifo_fast leaf qdisc dor htb > classes it seg.-faults. Is pfifo_fast a special qdisc? > I can succesfully add other type of qdiscs. > > I found that a similar problem was reported in > february on a MIPS architecture.Yes I think it''s special - but the default behavior of prio is much the same.> > root@zefir:/usr/src# tc qdisc add dev eth0 root handle > 1: htb default 10 > root@zefir:/usr/src# tc class add dev eth0 parent 1: > classid 1:1 htb rate 100Mbit ceil 100Mbit burst 50k > cburst 150kFWIW if you are shaping 100meg ethernet those settings would be too high I would use - ... rate 99mbit ceil 99mbit mpu 84 overhead 38 ...> I think htb and pfifo_fast assures a better QOS than > htb & sfq because I can priorize interactivity. > > Thank you in advance for any sugestions.Yes use prio if you are going to give one class for each user, you will still have to set the tos bits/classify yourself as you can''t rely on apps/inbound having them set properly. Also remember that if you are shaping inbound traffic you need to back off from the link rates more than outbound so that a queue can build up. If the link is slow then you''ll need to keep the queues short aswell, so you drop packets. Andy.