Jay Wang writes:
> Well, RPR gives you bandwidth endurance at the link level, a shared
> media in this case. On higher level, you may conduct your QoS as
> appropriate, Diffserv, Intserv, or else. One does not preclude the other,
> IMO.
how about if someone would like to give different bandwidth assurance to
more than one independent traffic class? also, within a diffserv
traffic class, droping of packets is based on the drop presedence of the
packet, not based on behind which nodes the packets arrived.
as i said before, node based fairness can only be applied to the highest
dp packets within each class. dpt (and also rpr if it adopts dpt) thus
supports diffserv only in a very limited sense. as far as i remember,
it is the only ieee mac standard, where the specification tells how many
queues the switch has.
-- juha