Summary

• QoS Best Practices is achieved by:

- Managing delay, delay variation (jitter), bandwidth, and packet loss

- Classifying and marking traffic as close to the source as possible

- Using NBAR

- Ensuring that real-time traffic gets priority with minimal delay

- Ensuring that business-critical traffic is correctly serviced

- Ensuring that scavenger traffic consumes only a small amount of bandwidth

- Using link efficiency techniques

• QoS has specific requirements for enterprise traffic classes: voice, videoconferencing, bulk data, and mission-critical data.

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