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drop-profile (Dynamic Schedulers)

Syntax

Hierarchy Level

Release Information

Statement introduced in Junos OS Release 9.3.

The $junos-cos-scheduler-dropfile-low, $junos-cos-scheduler-dropfile-medium-low, $junos-cos-scheduler-dropfile-medium-high, $junos-cos-scheduler-dropfile-high, and $junos-cos-scheduler-dropfile-any predefined variable introduced in Junos OS Release 9.4.

Description

Within the drop-profile map, specify the name of the drop profile to use for random early detection (RED) for a specific packet-loss priority (PLP) level and protocol type. A drop profile maps a fill level (fullness of a queue) to a drop probability (probability that a packet will be dropped). When a packet arrives, RED checks the queue fill level. If the fill level corresponds to a nonzero drop probability, the RED algorithm determines whether to drop the arriving packet.

You enable RED by applying a drop profile to a scheduler.

You configure drop profiles statically (at the [edit class-of-service drop-profiles] hierarchy level).

Options

profile-name—Name of the drop profile.

predefined-variable—One of the following Junos predefined variable that is replaced with a value obtained from the RADIUS server when a subscriber authenticates over the interface to which the dynamic profile is attached:

• $junos-cos-scheduler-dropfile-low—Name of the drop profile for PLP level low and protocol any, specified for a scheduler configured in a dynamic profile for subscriber access.
• $junos-cos-scheduler-dropfile-medium-low—Name of the drop profile for PLP level medium-low and protocol any, specified for a scheduler configured in a dynamic profile for subscriber access.
• $junos-cos-scheduler-dropfile-medium-high—Name of the drop profile for PLP level medium-high and protocol any, specified for a scheduler configured in a dynamic profile for subscriber access.
• $junos-cos-scheduler-dropfile-high—Name of the drop profile for PLP level high and protocol any, specified for a scheduler configured in a dynamic profile for subscriber access.
• $junos-cos-scheduler-dropfile-lny—Name of the drop profile for PLP level any and protocol any, specified for a scheduler configured in a dynamic profile for subscriber access.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.