Administrator Guide

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
Command History
Version Description
9.9(0.0) Introduced on the C9010.
9.2.1.0 Introduced on the Z9500 switch.
9.3.0.0 Introduced on the S6000 and Z9000 platforms
Usage Information If the average queue size is more than the maximum threshold of WRED, the packet is dropped. If the average
queue size is between the minimum and maximum threshold values, the decision to drop or queue the packet is
Quality of Service (QoS) 1339