Hello, I read about the pfifo_fast has 3 bands, which allow you to prioritize traffic into these bands. I cannot find anything about these bands in the tc command reference (http://linux.bergqvist.se/tc/). I might be looking the wrong place - in which case, where should I look for help with this qdisc? The idea is to give "time-critical" sessions such as ssh, telnet etc. HIGHEST priority (based on fwmark), so these will not lag no matter how much the connection is overloaded. I was thinking somewhere in line of: - letting the firewall mark the packets as they come in and go out (if the ports match of course). - use tc to throw them into bands in the pfifi_fast queue, where these marked packets will be thrown into band 1, and the rest in into band 3 - here by servicing the "time-critical" services before fx downloads. Can this be done without it getting too complex with CBQ and stuff? - Theepan