olemus
parameetrikogum arhitektuurimudelis DiffServ, määrab liikluse klassi ja seega paketi edasise käsitluse võrgusõlmes
= a set of techniques for traffic shaping, the forwarding treatment applied to a particular collection of packets with the same codepoint at a DiffServ node

ülevaateid
https://docs.oracle.com/cd/E19253-01/816-4554/ipqos-intro-10/index.html

http://what-when-how.com/ccnp-ont-exam-certification-guide/the-diffserv-model-differentiated-services-code-point-dscp-and-per-hop-behavior-phb-classification-marking-and-nbar/

standardid
https://tools.ietf.org/html/rfc2475
https://tools.ietf.org/html/rfc3086
https://tools.ietf.org/html/rfc3140
https://tools.ietf.org/html/rfc8622