Re: [LARTC] Incomprehensive problem with tc filter & mangle...

[Victor Cassar <victorcassar@yahoo.com>]

Ronan: 
If you are bridging remember that traffic classfiers
can´t see the bridged traffic thats why all the
traffic goes to the default queue

there is no support for brdige + classifiers unless
you apply the right patches

Victor Cassar
--- Ronan LAVIEC <ronan.laviec@club-internet.fr>
wrote:
> First of all, hi !!!
> And please be comprehensive for my poor english,
> cause I'm French and French
> do not speak very well foreign language :o).
> 
> So my problem :
> 
> I use -j MARK in mangle table to catch packets with
> tc filter and to put
> them in one or another class, but this doesn't work.
> 
> Here is the script I try to use to do QoS :
> 
> # This script try to give priority to small packets
> traffic
> # This is due to always have good ping in online
> game, even if some
> uploading are on.
> 
> UPLINK\x124
> UPLINK_OTHERp
> 
> LAN_IFACE=eth1
> EXT_IFACE=ppp0
> 
> # Mark all packets
> $IPTABLES -t mangle -A PREROUTING -i $LAN_IFACE -m
> length --length 0:200 -j
> MARK --set-mark 10
> $IPTABLES -t mangle -A PREROUTING -i $LAN_IFACE -m
> length --length
> 200:400 -j MARK --set-mark 15
> $IPTABLES -t mangle -A PREROUTING -i $LAN_IFACE -m
> length --length
> 400:800 -j MARK --set-mark 20
> $IPTABLES -t mangle -A PREROUTING -i $LAN_IFACE -m
> length --length
> 800:1500 -j MARK --set-mark 25
> 
> $TC qdisc del dev $EXT_IFACE root    2> /dev/null >
> /dev/null
> $TC qdisc del dev $EXT_IFACE ingress 2> /dev/null >
> /dev/null
> 
> $TC qdisc add dev $EXT_IFACE root handle 1: htb
> default 20
> 
> $TC class add dev $EXT_IFACE parent 1: classid 1:1
> htb rate ${UPLINK}kbit
> burst 6k
> 
> $TC class add dev $EXT_IFACE parent 1:1 classid 1:10
> htb rate ${UPLINK}kbit
> \
>    burst 6k prio 1
> $TC class add dev $EXT_IFACE parent 1:1 classid 1:20
> htb rate
> ${UPLINK_OTHER}kbit \
>    burst 6k prio 2
> 
> $TC qdisc add dev $EXT_IFACE parent 1:10 handle 10:
> sfq perturb 10
> $TC qdisc add dev $EXT_IFACE parent 1:20 handle 20:
> sfq perturb 10
> 
> # The rules that's didn't work, and I don't now why.
> $TC filter add dev $EXT_IFACE parent 1: protocol ip
> prio 15 \
>    handle 10 fw classid 1:10
> $TC filter add dev $EXT_IFACE parent 1: protocol ip
> prio 20 \
>    handle 15 fw classid 1:10
> 
> # End of rc.qos
> 
> I don't now why this doesn't work, because filter
> rules are setting up, a
> "tc filter show" gives :
> 
> filter parent 1: protocol ip pref 15 fw
> filter parent 1: protocol ip pref 15 fw handle 0xa
> classid 1:10
> filter parent 1: protocol ip pref 20 fw
> filter parent 1: protocol ip pref 20 fw handle 0xf
> classid 1:10
> 
> But "tc class show" always gives :
> 
> class htb 1:1 root rate 124Kbit ceil 124Kbit burst
> 6Kb/8 mpu 0b cburst
> 1757b/8 mpu 0b level 7
>  Sent 205068 bytes 151 pkts (dropped 0, overlimits
> 0)
>  rate 2122bps 1pps
>  lended: 0 borrowed: 0 giants: 0
>  tokens: 217601 ctokens: -8773
> 
> class htb 1:10 parent 1:1 leaf 10: prio 1 quantum
> 1587 rate 124Kbit ceil
> 124Kbit burst 6Kb/8 mpu 0b cburst 1757b/8 mpu 0b
> level 0
>  Sent 0 bytes 0 pkts (dropped 0, overlimits 0)
>  lended: 0 borrowed: 0 giants: 0
>  tokens: 317109 ctokens: 90735
> 
> class htb 1:20 parent 1:1 leaf 20: prio 2 quantum
> 1000 rate 70Kbit ceil
> 70Kbit burst 6Kb/8 mpu 0b cburst 1688b/8 mpu 0b
> level 0
>  Sent 205068 bytes 151 pkts (dropped 0, overlimits
> 0)
>  rate 2029bps 1pps
>  lended: 151 borrowed: 0 giants: 0
>  tokens: 385463 ctokens: -21851
> 
> This is always the default option that is used, it's
> as if the filter
> weren't there.
> 
> And as this is my firts attempt to make something
> like this, I do not
> necessaraly understand all the subtibility of tc
> rules (like u32 matches).
> 
> Ronan LAVIEC.
> 
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