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End-to-end QoS deployment techniques for Cisco Catalyst series switches
Quality of service (QoS) is the set of techniques designed to manage network resources. QoS refers to the capability of a network to provide better service to selected network traffic over various LAN and WAN technologies. The primary goal of QoS is to provide flow priority, including dedicated bandwidth, controlled jitter and latency (required by some interactive and delay-sensitive traffic), and improved loss characteristics.
While QoS has become an essential technology for those organizations rolling out a new generation of network applications such as real-time voice communications and high-quality video delivery, most of the literature available on this foundation technology for current and future business applications focuses on IP QoS. Equally important is the application of QoS in the campus LAN environment, which is primarily responsible for delivering traffic to the desktop.
Cisco Catalyst QoS is the first book to concentrate exclusively on the application of QoS in the campus environment. This practical guide provides you with insight into the operation of QoS on the most popular and widely deployed LAN devices: the Cisco Catalyst family of switches. Leveraging the authors' extensive expertise at Cisco in the support of Cisco Catalyst switches and QoS deployment, the book presents QoS from the campus LAN perspective. It explains why QoS is essential in this environment in order to achieve a more deterministic behavior for traffic when implementing voice, video, or other delay-sensitive applications. Through architectural overviews, configuration examples, real-world deployment case studies, and summaries of common pitfalls, you will understand how QoS operates, the different components involved in making QoS possible, and how QoS can be implemented on the various Cisco Catalyst platforms to enable truly successful end-to-end QoS applications.
This book is part of the Networking Technology Series from Cisco Press, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.
I. FUNDAMENTAL QOS CONCEPTS.1. Quality of Service: An Overview.
Understanding QoS. Deploying QoS in the WAN/LAN: High-Level Overview. Cisco AVVID. Overview of Integrated and Differentiated Services. Differentiated Services: A Standards Approach. Summary. 2. End-to-End QoS: Quality of Service at Layer 3 and Layer 2.
QoS Components. Congestion Management. Congestion Avoidance. Token Bucket Mechanism. Traffic Shaping. Policing. QoS Signaling. Link Efficiency. Classification and Marking at Layer 3. Per-Hop Behaviors. Classification and Marking at Layer 2. Mapping Layer 2 to Layer 3 Values. A General View of QoS on the Catalyst Platforms. Cisco Catalyst QoS Trust Concept. Summary. 3. Overview of QoS Support on Catalyst Platforms and Exploring QoS on the Catalyst.
2900XL, 3500XL, and Catalyst 4000 CatOS Family of Switches. Catalyst Feature Overview. Material Presentation for Catalyst Switching Platforms. QoS Support on the Catalyst 2900XL and 3500XL. QoS Support on the Catalyst 4000 CatOS Family of Switches. 4. QoS Support on the Catalyst 5000 Family of Switches.
Catalyst 5000 Family of Switches QoS Architectural Overview. Enabling QoS Features on the Catalyst 5000 Family of Switches. Input Scheduling. Classification and Marking. Congestion Avoidance. Case Study. Summary.
II. ADVANCED QOS CONCEPTS.5. Introduction to the Modular QoS Command-Line Interface.
MQC Background, Terms, and Concepts. Step 1: The Class Map. Step 2: The Policy Map. Step 3: Attaching the Service Policy. Summary. 6. QoS Features Available on the Catalyst 2950 and 3550 Family of Switches.
Catalyst 2950 and Catalyst 3550 Family of Switches QoS Architectural Overview. Input Scheduling. Classification and Marking. Policing. Congestion Management and Avoidance. Auto-QoS. Case Study. Summary. 7. QoS Features Available on the Catalyst 4000 IOS Family of Switches and the
Catalyst. G-L3 Family of Switches. QoS Support on the Catalyst 4000 IOS Family of Switches. QoS Support on the Catalyst 2948G-L3, 4908G-L3, and Catalyst 4000 Layer 3 Services Module. Summary. 8. QoS Support on the Catalyst 6500.
Catalyst 6500 Architectural Overview. Enabling QoS on the Switch. Input Scheduling. Classification and Marking. Mapping. Policing. Congestion Management and Congestion Avoidance. Automatic QoS. Summary. 9. QoS Support on the Catalyst 6500 MSFC and FlexWAN.
MSFC and FlexWAN Architectural Overview. QoS Support on the MSFC and FlexWAN. Classification. Marking. Policing and Shaping. Congestion Management and Scheduling. Congestion Avoidance. Summary. 10. End-to-End QoS Case Studies.
Chapter Prerequisites and Material Presentation. Multiplatform Campus Network Design and Topology. Access Layer Switches. Distribution Layer. Core Layer. Summary. Index.