Hi! I recently changed my qdisc from CBQ and PRIO to only HTB, and I can't really seem to get the rates to work as I want them to. I have eight classes, which I set up as follows: tc qdisc add dev eth1 root handle 1: htb default 122 tc class add dev eth1 parent 1: classid 1:1 htb rate 1000kbit ceil 1000kbit cburst 1500 burst 50kb tc class add dev eth1 parent 1:1 classid 1:11 htb prio 0 rate 25kbit ceil 50kbit burst 10kbit tc class add dev eth1 parent 1:1 classid 1:12 htb prio 1 rate 400kbit ceil 1000kbit burst 10kb tc class add dev eth1 parent 1:1 classid 1:13 htb prio 1 rate 150kbit ceil 1000kbit burst 50kb tc class add dev eth1 parent 1:1 classid 1:14 htb prio 1 rate 400kbit ceil 1000kbit burst 10kb tc class add dev eth1 parent 1:1 classid 1:15 htb prio 2 rate 25kbit ceil 500kbit burst 10kb tc class add dev eth1 parent 1:12 classid 1:121 htb prio 1 rate 300kbit ceil 1000kbit tc class add dev eth1 parent 1:12 classid 1:122 htb prio 1 rate 100kbit ceil 1000kbit tc filter add dev eth1 parent 1: protocol ip prio 1 handle 1 fw flowid 1:15 tc filter add dev eth1 parent 1: protocol ip prio 2 handle 2 fw flowid 1:14 tc filter add dev eth1 parent 1: protocol ip prio 3 u32 match ip tos 0x10 0x1e flowid 1:11 tc filter add dev eth1 parent 1: protocol ip prio 3 u32 match ip tos 0x08 0x1e flowid 1:121 tc filter add dev eth1 parent 1: protocol ip prio 3 u32 match ip sport 80 0xffff flowid 1:13 (Sorry for the long lines) Along with these iptables rules in the mangle table: -A POSTROUTING -m tos --tos 0x1e -j MARK --set-mark 0x1 -A POSTROUTING -m tos --tos 0x1e -j TOS --set-tos 0x00 -A POSTROUTING -m owner --cmd-owner vsftpd -j MARK --set-mark 0x2 As you can see, one of the things I'm trying to do is to de-prioritize traffic with TOS 0x1E (I set this through iptables on other machines on the network for processes that belong to a certain group) - these packets go to class 1:15. It doesn't work as I expect it to, though. In my test case, I let a friend download something from me over FTP, which goes through class 1:14, at the same time as I'm letting a multitude of TCP connections transfer data through the low priority class (1:15). This friend of mine has a downstream bandwidth of 512 kbit. My upstream bandwidth, in case it is unclear, is 1 mbit. Therefore, I would expect each to go at about 500 kbit each. When only one of the transfers is running alone, the correct bandwidth is reached. However, when both are running at the same time, the low priority goes at 500 kbit (its ceil), while the FTP transfer drops to only about 300 kbit. I have verified that everything goes through the right classes (with tc -s class ls), so the filters are working as they should, at least. If someone can explain this, I'd be grateful. Fredrik Tolf _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
