LARTC - Jun 2006 - run multiple algorithm qdisc simultaneously (HTB & HFSC)

now i''m read a lot of knowledge paper about traffic control in linux
because now i''m try to develop and research about traffic shaper so can
everybody tell me about my topic

... Is it can do for real????

my topic is "
now, many organization use traffic shaper for control traffic and bandwidth
because don''t want something example
some mac address, ip address, traffic in that port or that application use a lot
of bandwidth more than it appropriate should use  example if people in
organization try to use

p2p application ,it may make a lot of problem for all bandwidth in organization

now most famous algorithm to manage queue in mastershaper is "HTB" but
i have just read some paper their tell about
"HFSC" algorithm ,it''s very good to manage real-time
application traffic so i think may be performance when HTB manage real-time
application are not work if i comparable

with performance by HFSC"

so my project is ... i want to develop new traffic shaper that use 2 algorithm
simultaneously (HTB for manage general traffic and HFSC for manage only real
time application)

by when the package come in my shaper outbound i will have one filter for 
filtering that package about what kind of that package??(general or real time
application package) and then after filtering it will continue send that package
to appropriate

queue to separate manage traffic later.

sorry for my bad english so much 
may be you don''t understand my project topic so looking in my picture. 

                    (general package)
     outbound                        ------------------------- HTB
------eth0-----------     filter  
                                 ------------------------- HFSC
       (real time application package) 

now my problem is... i read a lot paper they tell if i want to use traffic
shaper in outbound side. In linux i must use tc command for setting it, but
it''s telling me about setting

algoritm will start to set in root qdisc and root qdisc is outboud side
so i fear about i can''t setting 2 algorithm simultaneously in tc
command

so please advise me , if you think i''m misunderstand and Is it can do
for real??? what should i do???

my question
1. In tc command, at root qdisc we must specify what kind of algorithm to
use??(htb or etc) ????
Ex. tc qdisc add dev eth0 root handle 1: "htb"
-Is it important and must specify algorithm in above command??? and can i define
algorithm later??
-If i use above command, another class under that root qdisc must be only HTB
algorithm?????
Can be HFSC,CBQ etc???  what should i do it???

2. About linux traffic control atchitecture theory, Is it true or
false???(It''s only my assumption)
Can i define new qdisc under root qdisc????
Because from theory, we define class under qdisc. 

this is my assumption
tc qdisc add dev eth0 root handle 1: fifo 
tc qdisc add dev eth0 parent 1: classid 10:1 htb rate 100kbps ceil 100kbps
tc qdisc add dev eth0 parent 1: classid 10:2 hfsc rate 100kbps ceil 100kbps

2. i want to have two different qdisc for run simultaneously??(HTB and HFSC) Can
i do it for real????
if i can, so what should i do it with tc command?????

3. In the one time, Outbound traffic Linux  can setting to have 2 root qdisc
????

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