# Configuring the Downstream Rate Using QoS Parameters

This chapter provides information for configuring quality of service (QoS) parameters on E Series routers.

QoS parameters are discussed in the following sections:

- QoS Downstream Rate Application Overview
- Guidelines for Configuring QoS Downstream Rate
- Configuring a Parameter Definition for QoS Downstream Rate
- Example: QoS Parameter Configuration for QoS Downstream Rate