ALTQ_CDNR(conditioner) usability?!

[Ermal Luçi]

Hello list,

while looking ip_input i saw that altq code is called from there and
if i have not read badly it goes to altq_cdnr code which is just a
diffserv conditioner.
Is there any utility that allows its configuration. Even PF hasn't
integrated it and i wonder why?!

If it's just a job to be done an how-to or how it is supposed to work
would be nice!

Regards.