Hi! I'm new to this list :) I have a problem (or misunderstanding) trying to set up the very basic example: giving priority to outgoing traffic from a host (on 100Mbit Ethernet) towards a subset of nodes based on their IP address (not on QoS flags), while allowing others to use all 'leftover' bandwidth. I have tried with htb and cbq qdiscs as well and neither seems to be doing what I want. :) Here is my CBQ setup: tc qdisc add dev eth1 root handle 1:0 cbq bandwidth 100Mbit \ rate 100Mbit avpkt 1000 cell 8 tc class add dev eth1 parent 1:0 classid 1:1 cbq bandwidth 100Mbit rate 100Mbit \ weight 1Mbit prio 8 allot 1514 cell 8 maxburst 20 avpkt 1000 bounded tc class add dev eth1 parent 1:1 classid 1:3 cbq bandwidth 100Mbit rate 80Mbit \ weight 0.8Mbit prio 5 allot 1514 cell 8 maxburst 20 avpkt 1000 tc class add dev eth1 parent 1:1 classid 1:4 cbq bandwidth 100Mbit rate 20Mbit \ weight 0.2Mbit prio 5 allot 1514 cell 8 maxburst 20 avpkt 1000 tc qdisc add dev eth1 parent 1:3 handle 30: sfq tc qdisc add dev eth1 parent 1:4 handle 40: sfq tc filter add dev eth1 parent 1:0 protocol ip prio 1 u32 match \ ip dst 10.0.0.0/16 flowid 1:3 tc filter add dev eth1 parent 1:0 protocol ip prio 1 u32 match \ ip dst 10.1.0.0/16 flowid 1:4 What this simply does for me is that when both IP ranges start 'fighting' for bandwidth they get about 50% each while as I understood (? :) from the HOWTO they should have got a 8:2 ratio. If I make one of 1:3 or 1:4 'bounded', the other is able to borrow its bandwidth, but not the other way around (no surprise). I tried the prio qdisc too: tc qdisc add dev eth1 root handle 1: prio tc qdisc add dev eth1 parent 1:1 handle 10: sfq perturb 10 tc qdisc add dev eth1 parent 1:2 handle 20: sfq perturb 10 tc qdisc add dev eth1 parent 1:3 handle 30: sfq perturb 10 tc filter add dev eth1 parent 1: protocol ip prio 1 u32 match \ ip dst 10.1.0.0/16 flowid 1:3 tc filter add dev eth1 parent 1: protocol ip prio 1 u32 match \ ip dst 10.0.0.0/16 flowid 1:1 which seems to have 'no effect' as well (50% bandwidth goes to both parties). The packets indeed make it to the right class/qdisc according to tc -s. Measurements were taken using iptables counters. Could you help me (either by pointing out where I don't understand something or providing a working example)? Thanks a lot in advance, Andras
