You should be able to cascade these ... I did something similar awhile ago with htb.init cause the various tc commands involved confused me :) You can grab the script at:: http://sourceforge.net/projects/htbinit However you can avoid htb.init if you want ... IIRC, there's an example of using HTB in a hierachy at: http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm Perhaps the problem is that the classids of 2:* cannot be children of class 1:1? I dunno -- that is conjecture ... read the docs instead of listening to my late-night theories :) good luck, -rob On Mon, Apr 28, 2003 at 11:50:46AM +0300, Osama Abu Elsorour wrote: > Hi there, > I have a question with regards to cascading multiple HTB qdiscs. Assume > that I want to build the following hierarchy: > > (qdisc htb 1:0) -> (class htb 1:1) -> (qdisc htb 2:0) -> (class htb 2:1) > -> (class htb 2:2) > > I want to attache aggregate u32 filters at 1:0 for supernets, then at > 2:0 (and 3:0, 4:0, etc), I attach the more specific u32 filters for say > HTTP and SMPT shaping. > > so I attach the following filters: > tc filter add dev eth0 parent 1:0 protocol ip u32 match ip dst > 172.16.1.0/24 classid 1:1 > so that all the class c traffic is directed to 1:1 > then for that c class web traffic > tc filter add dev eth0 parent 2:0 protocol ip u32 match ip sport 80 > 0xffff classid 2:1 > then for that c class smtp traffic > tc filter add dev eth0 parent 2:0 protocol ip u32 match ip sport 25 > 0xffff classid 2:2 > and so on and so forth > > however, when I build that setup, the c class traffic gets directed to > 1:1 alright, but nothing goes nay further in 2:1 and 2:2 > > my reasoning could be one of the following: > 1) you cannot cascade HTB qdiscs, which to me is illogical, it defies > the concept and adventages of having a hierarchical setup. > 2) there is something wrong with the way I attached the filters. > 3) I totally misunderstood HTB! > > Please advise. > > Thanks a million. > > > > _______________________________________________ > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/