Apply A Wred Profile To Traffic; Display Default And Configured Wred Profiles; Display Wred Drop Statistics - Dell Force10 Z9000 Configuration Manual

2. The command
threshold values using the command

Apply a WRED profile to traffic

Once you create a WRED profile you must specify to which traffic FTOS should apply the profile.
FTOS 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 Force10 uses the first three bits of this field (DP)
to determine the drop precedence. DP values of 110 and 100 map to yellow, and all other values map to
green. If you do not configure FTOS to honor DSCP values on ingress
packets on page
Assign a WRED profile to either yellow or green traffic from QOS-POLICY-OUT mode using the
command

Display Default and Configured WRED Profiles

Display default and configured WRED profiles and their threshold values using the command
wred-profile
Figure 35-14. Displaying WRED Profiles (E-Series)
FTOS#show qos wred-profile
Wred-profile-name
wred_drop
wred_ge_y
wred_ge_g
wred_teng_y
wred_teng_g
Figure 35-15. Displaying WRED Profiles (S4810)
FTOS#show qos wred-profile
Wred-profile-name
wred_drop
wred_teng_y
wred_teng_g
wred_fortyg_y
wred_fortyg_g
0
FTOS#

Display WRED Drop Statistics

Display the number of packets FTOS dropped by WRED Profile using the command
from EXEC Privilege mode.
| Quality of Service (QoS)
742
places you in WRED mode. From this mode, specify minimum and maximum
wred
735) see all traffic defaults to green drop precedence.
.
wred
from EXEC mode, as shown in
min-threshold
0
1000
2000
4000
8000
threshold .
Figure 35-14.
max-threshold
0
2000
4000
8000
16000
min-threshold max-threshold
0 0
467 4671
467 4671
467 4671
467 4671
(Honor DSCP values on ingress
show qos
max-drop-rate
100
100
50
50
25
show qos statistics