Class-of-service mapping for QoS

TLDR

Providing distinct QoS guarantees for traffic from different applications is highly desired by IP network operators, yet widespread deployment remains limited. The study aims to address the lack of effective methodologies for mapping application traffic to QoS classes, arguing that measurement‑based automated Class‑of‑Service mapping is a critical problem to investigate. The authors note that mapping is challenging because operators often lack knowledge of all running applications and port‑based classification has become problematic.

Abstract

The ability to provide different Quality of Service (QoS) guarantees to traffic from different applications is a highly desired feature for many IP network operators, particularly for enterprise networks. Although various mechanisms exist for providing QoS in the network, QoS is yet to be widely deployed. We believe that a key factor holding back widespread QoS adoption is the absence of suitable methodologies/processes for appropriately mapping the traffic from different applications to different QoS classes. This is a challenging task, because many enterprise network operators who are interested in QoS do not know all the applications running on their network, and furthermore, over recent years port-based application classification has become problematic. We argue that measurement based automated Class of Service (CoS) mapping is an important practical problem that needs to be studied.