> # Configuring QoS

> This chapter provides details on the QoS features provided in all switches.

> Quality of service (QoS) offers the following advantages:

> - Provides relative bandwidth guarantee to application traffic.
> - Controls latency experienced by application traffic.
> - Prioritizes one application over another (for example, prioritizing transactional traffic over bulk traffic) through bandwidth and latency differentiation.

> This chapter includes the following topics:

> - Information About QoS
> - Configuring QoS
> - Configuration Examples for QoS
> - Limiting Ingress Port Rate Limiting

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