rashid rasheed posted a comment on a wiki page

I am working on research topic "QoS mechanism in IoT". I have to implement QoS in Cooja simulator. My questions are: 1) How can I classify 3 types of applications (Critical, Real time, Non-real time) in cooja simulator? Which method of cooja can make these nodes different from each other? 2) How I can implement multiple queues in cooja (weighted fair queue) one queue for each type of traffic? Can anyone help me in this implementation? or can implement it? Thank You