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## Quality of Service Overview

The quality of service (QoS) feature enables your E-series router to distinguish traffic with strict timing requirements from traffic that can tolerate delay, jitter, and loss.

QoS topics are discussed in the following sections:

- QoS on the E-series Router Overview
- QoS Audience
- QoS Platform Considerations
- QoS Terms
- QoS Features
- Configuring QoS on the E-series Router
- QoS References

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