Service Manual
Version Description
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
FTOS (conf-qos-policy-out) # wred weight 5
wred-prole
Create a WRED prole and name the prole.
S6000–ON
Syntax
wred-profile wred-profile-name
To remove an existing WRED prole, use the no wred-profile command.
Parameters
wred-prole-name
Enter your WRED prole name in character format (32 character maximum). Or
use one of the pre-dened WRED prole names. You can congure up to 26 WRED
proles plus the ve pre-dened proles, for a total of 31 WRED proles.
Pre-dened Proles: wred_drop, wred-ge_y, wred_ge_g, wred_teng_y,
wred_teng_g.
Defaults The ve pre-dened WRED proles. When you congure a new prole, the minimum and maximum
threshold defaults to predened wred_ge_g values.
If green prole is applied, default yellow also take eect and vice-versa.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. 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
9.7(0.0) Introduced on the S6000-ON.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
Usage Information Use the default pre-dened proles or congure your own prole. You cannot delete the pre-dened proles
or their default values. This command enables WRED conguration mode —(conf-wred).
Related Commands threshold — species the minimum and maximum threshold values of the WRED prole.
1110
Quality of Service (QoS)