Re: Why did I need strange ceiling settings? (full version)

Linux Advanced Routing and Traffic Control

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Philipp Leusmann wrote:

You will need to back off from the rates more and use kbit of course.

tc qdisc add dev $IFACE root handle 1:0 htb default 103

default is bad if $IFACE is eth your arp will go here, also if eth Quantum should be set to ip mtu + 14.


echo "Set root class"
# Set root class
tc class add dev $IFACE parent 1:0 classid 1:1 htb rate $UPRATE ceil $UPRATE
echo "Specify sub classes"
# Specify sub classes
tc class add dev $IFACE parent 1:1 classid 1:101 htb rate $PRIORATE1 ceil
$UPRATE quantum $QUANTUM1 prio 0
tc class add dev $IFACE parent 1:1 classid 1:102 htb rate $PRIORATE2 ceil
$UPRATE quantum $QUANTUM2 prio 1
tc class add dev $IFACE parent 1:1 classid 1:103 htb rate $PRIORATE3 ceil
$UPRATE quantum $QUANTUM3 prio 2
tc class add dev $IFACE parent 1:1 classid 1:104 htb rate $PRIORATE4 ceil
$P2PRATE quantum $QUANTUM4 prio 3

Using different quantums makes more sense if classes have the same prio - like this the higher prio classes get all spare anyway if they need it.


echo "Filter packets"
# Filter packets
tc filter add dev $IFACE parent 1:0 protocol ip prio 0 handle $MARKPRIO1 fw
classid 1:101
tc filter add dev $IFACE parent 1:0 protocol ip prio 1 handle $MARKPRIO2 fw
classid 1:102
tc filter add dev $IFACE parent 1:0 protocol ip prio 2 handle $MARKPRIO3 fw
classid 1:103
tc filter add dev $IFACE parent 1:0 protocol ip prio 3 handle $MARKPRIO4 fw
classid 1:104

Makes no difference as such in this case, but highest prio for filters is 1.

Andy.
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