Reference Guide

734 | Quality of Service (QoS)
www.dell.com | support.dell.com
Figure 40-11. Displaying S5000 WRED Profiles
Displaying WRED Drop Statistics
Display the number of packets Dell Networking OS dropped by WRED Profile using the command show
qos statistics
from EXEC Privilege mode.
Figure 40-12. show qos statistics Command Example for the S5000
Pre-calculating Available QoS CAM Space
Pre-calculating Available QoS CAM Space is supported on the S5000 switch.
The command
test cam-usage enables you to verify that there are enough available CAM entries before
applying a policy-map to an interface so that you avoid exceeding the QoS CAM space and partial
configurations. This command measures the size of the specified policy-map and compares it to the
available CAM space in a partition for a specified port-pipe.
Test the policy-map size against the CAM space for a specific port-pipe or all port-pipes using these
commands:
•
test cam-usage service-policy input policy-map stack-unit unit-number port-set number
• test cam-usage service-policy input policy-map stack-unit all
The output of this command, shown in Figure 40-13, displays:
Dell#show qos wred-profile
Wred-profile-name min-threshold max-threshold max-drop-rate
wred_drop 0 0 100
wred_teng_y 467 4671 100
wred_teng_g 467 4671 50
wred_fortyg_y 467 4671 50
wred_fortyg_g 467 4671 25
0
Dell#
Dell#show qos statistics wred-profile
Interface Te 0/0
Drop-statistic WRED-name Dropped Pkts
Green WRED1 51623
Yellow WRED2 51300
Out of Profile 0
Dell#