[LARTC] Simple shaping question

[Jonas Jasas]

I have linux box (does nat and firewall for small network) connected
to dsl. I want to set priorities for protocols (that nothing could
disturb web browsing). This is my rules (eth0 connected to internet):

/sbin/tc qdisc del dev eth0 root
/sbin/tc qdisc add dev eth0 root handle 1 htb default 30 r2q 100

/sbin/tc class add dev eth0 parent 1: classid 1:2 htb rate 900Kbit burst 15k

/sbin/tc class add dev eth0 parent 1:2 classid 1:10 htb rate 900Kbit
ceil 900Kbit
/sbin/tc filter add dev eth0 parent 1:0 protocol ip prio 100 u32 match
ip sport 80 0xffff classid 1:10
/sbin/tc filter add dev eth0 parent 1:0 protocol ip prio 100 u32 match
ip dport 80 0xffff classid 1:10

/sbin/tc class add dev eth0 parent 1:2 classid 1:20 htb rate 10Kbit ceil 900Kbit

I start to download from ftp it uses all bandwidth (as it should be),
when I start to download on web, web and ftp rated become more or less
equal :/ . I want that ftp traffic would be limited to 10kbit and all
other bandwidth would be left for web trafic.

What is wrong with my rules?
Thank you for advice!