Chapter 10. Cisco QoS Best Practices

QOS Exam Topics

This chapter covers the following exam topics specific to the QoS exam:

• Explain the QoS requirements of the different application types

• List typical enterprise traffic classes; then, identify the delay, jitter, packet-loss, and bandwidth requirements of each traffic class

• Explain the best practice QoS implementations and configurations within the campus LAN

• Explain the best practice QoS implementations and configurations on the WAN customer edge (CE) and provider edge (PE) routers

Today's applications require converged networks to provide predictable, measurable, and possibly guaranteed service to facilitate the productivity of your end users. As network applications grow in number and complexity, this simple truth becomes more and more apparent. The days of classifying all traffic into a single class that receives best-effort treatment is rapidly becoming a methodology of the past.

The previous nine chapters of this book describe in detail the various concepts and methods available to you for the configuration of classification, congestion management, and congestion avoidance on Cisco routers and switches. This chapter is designed to pull these concepts together, illustrating the Cisco best practices for a converged network.