The first edition of this book established itself as the definitive guide to successfully deploying and managing QoS with Cisco technologies. Now, the authors have thoroughly revamped their authoritative guide to reflect radically new applications, best practices, hardware, software, and tools. No other QoS book is as up to date, or combines as much breadth and depth: from business cases and technical strategies, all the way down to configuration and troubleshooting detail across campus, WLAN, WAN, branch, L2 and L3 VPN and data center networks. This new Second Edition addresses: * Today's highly complex and sophisticated traffic mixes, encompassing far greater use of mobile devices, wireless network access, advanced communications, and bandwidth-hungry video * Increasing heterogeneity of video traffic, including passive streaming video, interactive video, and immersive video conferences * Significant shifts in bandwidth constraints and congestion points * Rapidly evolving hardware and software platforms * The ongoing refinement and sophistication of QoS tools and features * Growing use of QoS techniques for security as well as traffic management Since this book's content ranges from high/mid-level to low-level technical detail, it will be valuable to a wide range of audiences, from intermediate to expert. Its opening section introduces QoS technologies in high-to-mid-level technical detail, including protocols, tools and relevant standards. The authors examine new QoS demands and requirements in today's rich-media networks, identify key drivers for reevaluating current QoS designs, and present strategic new design recommendations. Next, they systematically address each of these scenarios: * Campus wired and wireless QoS Design * Campus next-generation wiring closets * QoS design for data centers, Internet edge, WAN edge, and branches * L2 MPLS, L3 MPLS, and IPSec VPN branch QoS design * Managing QoS