Network Quality of Service (QoS) has become an imperative element of responsible network architecture and design. Proper use of network QoS allows the peaceful co-existence of high-value latency-sensitive traffic such as VoIP and IP videoconferencing with bandwidth-hungry but less time-sensitive traffic. But while networking pros understand the need for network QoS, accurate deployment and ongoing enforcement of consistent QoS policies is difficult, particularly in large, distributed environments, and thus management technologies and practices must be optimized to assure success. This EMA whitepaper examines the detailed reasons for using network QoS, best practices for implementing and ongoing management of network QoS, and the LiveAction solution for QoS management offered by ActionPacked! Networks.