Administrator Guide
DSCP/CP hex 
Range (XXX)
DSCP 
Definition
Traditional IP 
Precedence
S6000 Internal 
Queue ID
S-Series 
Internal Queue 
ID
DSCP/CP 
Decimal
011XXX AF3 Flash 3 1 16–31
010XXX AF2 Immediate 2 1 16–31
001XXX AF1 Priority 1 0 0–15
000XXX BE (Best Effort) Best Effort 0 0 0–15
wred
Designate the WRED profile to yellow or green traffic.
Syntax
wred {yellow | green} profile-name
To remove the WRED drop precedence, use the no wred {yellow | green} [profile-name] command.
Parameters
yellow | green Enter the keyword yellow for yellow traffic. A DSCP value of xxx110 and xxx100, xxx101 
maps to yellow.
Enter the keyword green for green traffic. A DSCP value of xxx0xx are green and DSCP 
111111 are red packets.
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 When WRED green is applied, default WRED yellow profiles take effect and vice-versa.
Command Modes CONFIGURATION (conf-qos-policy-out)
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC 
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
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 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.
1238 Quality of Service (QoS)










