Command
History
Version
Description
9.2.1.0
Introduced on the Z9500 switch.
9.3.0.0
Introduced on the S6000 and Z9000 platforms.
Usage
Information
You can configure only service pools 0 and 1 because the Dell Networking OS uses
only these two service pools. The service0 pool is used for lossy queues; the
service1 pool is used for lossless (PFC) queues on all platforms.
You can configure the weight for the WRED average queue size on service1 pool
on which PFC is supported; service0 pool does not support PFC.
A WRED profile contains a set of attributes, such as the minimum and maximum
threshold values, and the maximum drop rate for the received packets. You can
add or remove WRED parameter configurations for one or more shared service
pools using a single command. The
buffer-pool wred
command is similar in
usage and working to the
service-class bandwidth-percentage
queue-id
command.
Example
Dell(conf-wred)#wred thresh-1
Dell(conf-wred)#threshold min 100 max 200 max-drop-rate 40
Dell(conf-wred)#wred thresh-2
Dell(conf-wred)#threshold min 300 max 400 max-drop-rate 80
Dell(conf)#service-pool wred green pool0 thresh-1 pool1
thresh-2
Dell(conf)#service-pool wred yellow pool0 thresh-3 pool1
thresh-4
Dell(conf #service-pool wred weight pool0 11 pool1 4
show qos dot1p-queue-mapping
Displays the dot1p priority to queue mapping on the switch.
Z9500
Syntax
show qos dot1p-queue-mapping
Defaults
• dot1p Priority: 0 1 2 3 4 5 6 7
• Queue: 0 0 0 1 2 3 3 3
Command
Modes
EXEC Privilege
Command
History
This guide is platform-specific. 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.
Quality of Service (QoS)
1481
