Default Profile Name
wred_fortyg_y
wred_fortyg_g
Creating WRED Profiles
To create WRED profiles, use the following commands.
1.
Create a WRED profile.
CONFIGURATION mode
wred-profile
2.
Specify the minimum and maximum threshold values.
WRED mode
threshold
Applying a WRED Profile to Traffic
After you create a WRED profile, you must specify to which traffic Dell Networking OS should apply the
profile.
Dell Networking OS assigns a color (also called drop precedence) — red, yellow, or green — to each
packet based on it DSCP value before queuing it.
DSCP is a 6–bit field. Dell Networking uses the first three bits (LSB) of this field (DP) to determine the drop
precedence.
•
DP values of 110 and 100, 101 map to yellow; all other values map to green.
•
If you do not configure Dell Networking OS to honor DSCP values on ingress (refer to
Values on Ingress
Packets), all traffic defaults to green drop precedence.
•
Assign a WRED profile to either yellow or green traffic.
QOS-POLICY-OUT mode
wred
Displaying Default and Configured WRED Profiles
To display the default and configured WRED profiles, use the following command.
•
Display default and configured WRED profiles and their threshold values.
EXEC mode
show qos wred-profile
Displaying WRED Profiles
Dell#show qos wred-profile
Wred-profile-name min-threshold max-threshold max-drop-rate
wred_drop
wred_teng_y
Quality of Service (QoS)
Minimum Threshold
467
467
0
0
467
4671
Maximum Threshold
4671
4671
100
100
Maximum Drop Rate
50
25
Honoring DSCP
809