HTB problem

Hi !

I have a Linux box with two interfaces eth0 to the local network and
eth1 to internet with cable modem - download 64K upload 16K. So i
wanted to shape the traffic using HTB. I wanted 40K to go to my IP -
192.168.0.21 when i want to download, and 24K to go to other IPs in
the local network. NAT and MASQUERADE are working, and i have internet
access in the local area, but when IP in the defaul class 12 starts
downloading i get less than 40K in class 1:10. I can't find where's
the problem. Here is my rc.shape ( very simple one ).

Why i can't get 40K when i've set rate to 40K ?
( User from other IPs have many connections to the internet )

Are the prio params correct ( low number for classes means higher
priority, high for filters means the same ) ?


10x


#****************************************
#rc.shape
#****************************************


tc qdisc add dev eth0 root handle 1: htb default 12

tc class add dev eth0 parent 1: classid 1:1 htb rate 64kbps ceil
64kbps burst 2k

tc class add dev eth0 parent 1:1 classid 1:10 htb rate 40kbps ceil
64kbps burst 10k prio 0

tc class add dev eth0 parent 1:1 classid 1:12 htb rate 15kbps ceil
64kbps burst 2k prio 7

tc filter add dev eth0 protocol ip parent 1: prio 7 u32 match ip dst
192.168.0.21 flowid 1:10

Marin Iakimov wrote:




> tc qdisc add dev eth0 root handle 1: htb default 12
>
> tc class add dev eth0 parent 1: classid 1:1 htb rate 64kbps ceil
> 64kbps burst 2k
>
> tc class add dev eth0 parent 1:1 classid 1:10 htb rate 40kbps ceil
> 64kbps burst 10k prio 0
>
> tc class add dev eth0 parent 1:1 classid 1:12 htb rate 15kbps ceil
> 64kbps burst 2k prio 7
>
> tc filter add dev eth0 protocol ip parent 1: prio 7 u32 match ip dst
> 192.168.0.21 flowid 1:10

If your REAL bandwidth is 64kbps ten you HAVE TO set ceil at most 90-95% of
the real bandwidth (try it experimentally), then make your remaining
calculations, don't worry up/download rates in practice won't be worse too
much.

--
pozdr
adeon