CLI Guide

wred weight
Configure the weight factor for computation of average-queue size. This weight value applies to front-end ports. This
mechanism to configure a weight for WRED and ECN functionality for front-end ports is supported on the S6000 and Z9000
platforms.
S6000
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 ports
only.
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
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6100-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.7(0.0) Introduced on the S6000-ON.
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 taken based on the packet drop probability. The probability that a packet is dropped
depends on the minimum threshold, maximum threshold, and mark probability denominator.
Example
DellEMC(conf-qos-policy-out) # wred weight 5
wred-profile
Create a WRED profile and name the profile.
S6000
Syntax
wred-profile wred-profile-name
To remove an existing WRED profile, use the no wred-profile command.
Parameters
wred-profile-
name
Enter your WRED profile name in character format (32 character maximum). Or
use one of the pre-defined WRED profile names. You can configure up to 26 WRED
profiles plus the five pre-defined profiles, for a total of 31 WRED profiles.
Pre-defined Profiles: wred_drop, wred-ge_y, wred_ge_g, wred_teng_y,
wred_teng_g.
Defaults The five pre-defined WRED profiles. When you configure a new profile, the minimum and maximum
threshold defaults to predefined wred_ge_g values.
Quality of Service (QoS) 1259