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Hi, I wanted to implement some QOS on my Linux Box with HTB, but
after some time spend on the configuration and tests, I still don’t manage
to have some correct results. Here are the details : -ROOT 2000 kbits
-HIGHPRIO SUBCLASS 50 kbits prio 0
-SUBCLASS1 750 kbits prio 1
-SERVICE1 250 kbits prio 1
-SERVICE2 250 kbits prio 1
-SERVICE3 250 kbits prio 1
-SUBCLASS2 750 kbits prio 1
-SERVICE1 250 kbits prio 1
-SERVICE2 250 kbits prio 1
-SERVICE3 250 kbits prio 1
-SUBCLASS3 400 kbits prio 1
-SERVICE1 200 kbits prio 1
-SERVICE2 200 kbits prio 1
-LOWPRIO SUBCLASS 50 kbits prio 5 Here is the details of the implementation, I only wrote 1 on
the subclass Cause they are all on the same template. tc qdisc add dev $QOSIN root handle 1:0 htb default 1000 tc class add dev $QOSIN parent 1:0 classid 1:1 htb rate
2000kbit ### SUBCLASS1 tc class add dev $QOSIN parent 1:1 classid 1:10 htb rate
750kbit ceil 2000kbit prio 1 tc class add dev $QOSIN parent 1:10 classid 1:101 htb rate
250kbit ceil 2000kbit prio 1 tc qdisc add dev $QOSIN parent 1:101 handle 101: pfifo limit
10 tc class add dev $QOSIN parent 1:10 classid 1:102 htb rate
250kbit ceil 2000kbit prio 1 tc qdisc add dev $QOSIN parent 1:102 handle 102: pfifo limit
10 tc class add dev $QOSIN parent 1:10 classid 1:103 htb rate
250kbit ceil 2000kbit prio 1 tc qdisc add dev $QOSIN parent 1:103 handle 103: pfifo limit
10 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPROD$MAIL fw flowid 1:101 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPROD$HTTP fw flowid 1:102 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPROD$FTP fw flowid 1:103 etc… ### HIGH PRIO ### tc class add dev $QOSIN parent 1:1 classid 1:50 htb rate 50kbit
ceil 2000kbit prio 0 quantum 1500 tc qdisc add dev $QOSIN parent 1:50 handle 50: pfifo limit
10 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPROD$HIGHPRIO fw flowid 1:50 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPOSTPROD$HIGHPRIO fw flowid 1:50 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTDMZ$HIGHPRIO fw flowid 1:50 ### LOW PRIO ### tc class add dev $QOSIN parent 1:1 classid 1:60 htb rate
50kbit ceil 2000kbit prio 5 quantum 1500 tc qdisc add dev $QOSIN parent 1:60 handle 60: pfifo limit
10 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPROD$LOWPRIO fw flowid 1:60 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTPOSTPROD$LOWPRIO fw flowid 1:60 tc filter add dev $QOSIN parent 1:0 protocol ip handle
$OUTDMZ$LOWPRIO fw flowid 1:60 Every traffic seems to go in the class it must go, the stats
are good and if I change any of the ceil rate the associated traffic is caped to the right ceil I enter. Now with this configuration I expected that when one of the
SUBCLASS class or SERVICE want more bandwith than its rate, she can borrow it from root and she had it before LOW
PRIO and after HIGH PRIO. But it don’t work at all, for exemple I tried only
with 2 flow, I have 500 Kbits of LOW PRIO traffic that is currently going on, then I fire some SERVICE1 traffic from SUBCLASS1
that can theorically take 2000 kbits, and instead of taking it from LOW PRIO, it just take what is left… I surely miss something… Thanks for your help and don’t hesitate to ask more
infos J Gael. |
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