Service-Class Wred Ecn Backplane - Dell Z9500 Reference Manual

Command
Version
History
9.2.1.0
9.3.0.0
Usage You can configure all the data queues. For Z9500, you can configure queues 0-3.
Information WRED profile contains a set of characteristics, such as the minimum and maximum
WRED thresholds and the maximum drop rate. You can add and remove WRED
parameters for one or more queues by using the command in a single line. All of
the configured attributes apply to all the backplane ports and are for each queue.
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.
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-class wred green queue5 thresh-1 queue7
thresh-2 backplane
Dell(conf)#service-class wred yellow queue1 thresh-2 queue3
thresh-1 backplane
Dell(conf)#service-class wred weight queue0 11 queue6 4 queue7
9 backplane

service-class wred ecn backplane

Apply ECN marking on backplane port-queues in a service class.
Syntax
[no] service-class wred ecn backplane queue-list
Parameters
service-class
wred
ecn
backplane
queue-list
1436
Description
Introduced on the Z9500 switch.
Introduced on the Z9000 platform.
Define the mapping between the service class and policy-
based QoS or routing.
Associate WRED with ECN to mark packets instead of
dropping them.
Cause explicit congestion notification (ECN) to be used to
indicate network congestion, rather than dropping packets,
queues-list Enter the queue numbers, either as individual
queue numbers separated by commas or as an inclusive list
separating the starting and ending queue numbers with a
hyphen
Specify that the ECN marking configured for each queue
applies to backplane ports.
Enter the port-queue numbers, either as individual queue
numbers separated by commas or as an inclusive list
separating the starting and ending queue numbers with a
hyphen; for example, service-class wred ecn 0, 2,
4-6 backplane. The range of queue IDs is 0 to 7.
Quality of Service (QoS)