On 28 Apr 2003 11:50:46 +0300 Osama Abu Elsorour <osama@xxxxxxxxxx> 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. > AFAIK filters can be atached ONLY to leaf classes (2.1 and 2.1) -- Sheshka Aleksey Senior Security Administrator PGP key : http://pgp.dtype.org:11371/pks/lookup?op=get&search=0x0BE90515
