Hello all,
I am trying to raise the priority of VoIP traffic, and am able to get it into
the appropriate PRIO bands like so:
/sbin/tc qdisc add dev eth0 root handle 2: prio bands 3 priomap 0 1 2
/sbin/tc qdisc add dev eth0 parent 2:1 handle 3: sfq
/sbin/tc qdisc add dev eth0 parent 2:2 handle 4: sfq
/sbin/tc qdisc add dev eth0 parent 2:3 handle 5: sfq
/sbin/tc filter add dev eth0 parent 2: protocol ip prio 1 \
u32 match ip dst 10.0.0.20 flowid 2:1
/sbin/tc filter add dev eth0 parent 2: protocol ip prio 2 \
u32 match ip dst 10.0.0.2 flowid 2:2
/sbin/tc filter add dev eth0 parent 2: protocol ip prio 2 \
u32 match ip dst 0.0.0.0/0 flowid 2:0
However when I try to encapsulate the prio qdisc (see below), tc status
reports that none of the packets are going into the bands. What am I missing?
tc qdisc add dev $DEV root handle 1: cbq avpkt 1000 bandwidth 10mbit
# shape everything at $UPLINK speed - this prevents huge queues in your
# DSL modem which destroy latency:
# main class
tc class add dev $DEV parent 1: classid 1:1 cbq rate ${UPLINK}kbit \
allot 1500 prio 5 bounded isolated
tc qdisc add dev $DEV parent 1:1 handle 2: prio bands 3 priomap 0 1 2
tc qdisc add dev $DEV parent 2:1 handle 3: sfq
tc qdisc add dev $DEV parent 2:2 handle 4: sfq
tc qdisc add dev $DEV parent 2:3 handle 5: sfq
tc filter add dev $DEV parent 2: protocol ip prio 1 \
u32 match ip dst 10.0.0.20 flowid 2:1
tc filter add dev $DEV parent 2: protocol ip prio 2 \
u32 match ip dst 10.0.0.2 flowid 2:2
tc filter add dev $DEV parent 2: protocol ip prio 3 \
u32 match ip dst 0.0.0.0/0 flowid 2:3
Many thanks to the contributors to lartc.org, docum.org and the wondershaper
who have gotten me this far.
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