Administrator Guide

Parameters
yellow | green Enter the keyword yellow for yellow traffic. A DSCP value of xxx100, xxx101, and
xxx110 maps to yellow.
Enter the keyword green for green traffic. A DSCP value of xxx0xx maps to
green.
profile-name
Enter your WRED profile name in character format (32 character maximum). Or
use one of the five pre-defined WRED profile names.
Pre-defined Profiles: wred_drop, wred-ge_y, wred_ge_g, wred_teng_y,
wred_teng_.
Defaults none
Command Modes QOS-POLICY-OUT mode
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Profile name character limit increased from 16 to 32.
6.1.1.1 Introduced on the .E-Series
Usage
Information
To assign drop precedence to green or yellow traffic, use this command. If there is no honoring enabled
on the input, all the traffic defaults to green drop precedence.
Related
Commands
wred-profile — creates a WRED profile and name that profile.
trust — defines the dynamic classification to trust DSCP.
wred weight
Configure the weight factor used to determine the average-queue size for WRED and ECN operation. The weight value is used
in an output QoS policy applied to a front-end or backplane port.
C9000 Series
Syntax
[no] wred weight number
Parameters
weight Define the weight factor to be used for computation of the WRED average-queue
size to either enable WRED to discard packets or cause ECN to mark packets that
exceed the minimum threshold configured. This setting applies to front-end and
backplane ports.
number Enter the weight as a number to be used to calculate the average-queue size. The
range is 1 to 15. The default is 0.
Default The default weight is zero.
Command Modes QOS-POLICY-OUT mode
1448 Quality of Service (QoS)