EndtoEnd QoS Network Design,Used

Bestpractice QoS designs for protecting voice, video, and critical data while mitigating network denialofservice attacks Understand the servicelevel requirements of voice, video, and data applications Examine strategic QoS best practices, including Scavengerclass QoS tactics for DoS/worm mitigation Learn about QoS tools and the various interdependencies and caveats of these tools that can impact design considerations Learn how to protect voice, video, and data traffic using various QoS mechanisms Evaluate design recommendations for protecting voice, video, and multiple classes of data while mitigating DoS/worm attacks for the following network infrastructure architectures: campus LAN, private WAN, MPLS VPN, and IPSec VPNQuality of Service (QoS) has already proven itself as the enabling technology for the convergence of voice, video, and data networks. As business needs evolve, so do the demands for QoS. The need to protect critical applications via QoS mechanisms in business networks has escalated over the past few years, primarily due to the increased frequency and sophistication of denialofservice (DoS) and worm attacks.EndtoEnd QoS Network Design is a detailed handbook for planning and deploying QoS solutions to address current business needs. This book goes beyond discussing available QoS technologies and considers detailed design examples that illustrate where, when, and how to deploy various QoS features to provide validated and tested solutions for voice, video, and critical data over the LAN, WAN, and VPN.The book starts with a brief background of network infrastructure evolution and the subsequent need for QoS. It then goes on to cover the various QoS features and tools currently available and comments on their evolution and direction. The QoS requirements of voice, interactive and streaming video, and multiple classes of data applications are presented, along with an overview of the nature and effects of various types of DoS and worm attacks. QoS bestpractice design principles are introduced to show how QoS mechanisms can be strategically deployed endtoend to address application requirements while mitigating network attacks. The next section focuses on how these strategic design principles are applied to campus LAN QoS design. Considerations and detailed design recommendations specific to the access, distribution, and core layers of an enterprise campus network are presented. Private WAN QoS design is discussed in the following section, where WANspecific considerations and detailed QoS designs are presented for leasedlines, Frame Relay, ATM, ATMtoFR Service Interworking, and ISDN networks. Branchspecific designs include Cisco SAFE recommendations for using NetworkBased Application Recognition (NBAR) for knownworm identification and policing. The final section covers Layer 3 VPN QoS designfor both MPLS and IPSec VPNs. As businesses are migrating to VPNs to meet their widearea networking needs at lower costs, considerations specific to these topologies are required to be reflected in their customeredge QoS designs. MPLS VPN QoS design is examined from both the enterprise and service provider's perspectives. Additionally, IPSec VPN QoS designs cover sitetosite and teleworker contexts.Whether you are looking for an introduction to QoS principles and practices or a QoS planning and deployment guide, this book provides you with the expert advice you need to design and implement comprehensive QoS solutions.