Cisco Modular Quality of Service Command Line Interface

QoS (Quality of Service) involves prioritization of network traffic. QoS is the idea that transmission rates, error rates, and other characteristics can be measured, improved, and, to some extent, guaranteed in advance. QoS can be targeted at a network interface, toward a given server or router’s performance, or in terms of specific applications. A network monitoring system must typically be deployed as part of QoS, to insure that networks are performing at the desired level. QoS is especially important for the new generation of Internet applications such as VoIP, video-on-demand and other consumer services.