MPLS technology: class of service

Abstract

Quality of Service is a sought after feature to handle isochronal signals in data networks. In the cases in which currently used techniques such as best effort are not sufficient, it becomes relevant to analyze Class of Service, since useful conclusions can be drawn from its study. To evaluate the cases under study, we carry out a survey drawing conclusions on the differentiated treatment of flows used by the various techniques under consideration. Among others, we can name: First in First out - FIFO, Priority Queuing - PQ, CoS based queuing, Weighted Fair Queuing - WFQ, Low Latency Queuing - LLQ, Class Based Queuing - CBQ. In addition, we explore Differentiated Services architecture – DiffServ. Finally, we identify the advantages these techniques offer in particular situations.