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## Guidelines for Configuring QoS Downstream Rate

When you specify the QoS downstream rate application, the following considerations apply:

- You can have only one parameter definition with the QoS downstream rate configured.
- You must specify a controlled-interface type.
- You must configure a subscriber-interface-type. ANCP uses the subscriber-interface type to determine the instance-interface type on which to dynamically create the parameter.
- Access loops can synchronize after the user has logged in. The business logic depends on the rate that is reported in the Access-Request message. We recommend that service providers use RADIUS Connect-Info attribute [77] as the default value for their business logic. When the ANCP rate information is not present, the system uses the default QoS parameter instance (which can be defined globally or per VLAN). The advisory transmit speed configurable per VLAN is reported to the RADIUS Connect-Info attribute [77]. Ensure that the value of the default QoS parameter is aligned with the value in RADIUS Connect-Info attribute 77.

#### Related Topics

- QoS Downstream Rate Application Overview
- Configuring a Parameter Definition for QoS Downstream Rate
- Example: QoS Parameter Configuration for QoS Downstream Rate
- For more information about the RADIUS Connect-Info attribute, see JUNOSe Broadband Access Configuration Guide

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