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Command
History
Version Description
9.7(0.0) Introduced on the Z9500.
Usage
Information
You can configure up to a maximum of four lossless (PFC) queues. By configuring four lossless queues,
you can configure four different priorities and assign a particular priority to each application that your
network is used to process. For example, you can assign a higher priority for time-sensitive applications
and a lower priority for other services, such as file transfers. You can configure the amount of buffer
space for each priority and the pause or resume thresholds for the buffer. This method of configuration
enables you to effectively manage and administer the behavior of lossless queues.
Example
dcb-policy buffer-threshold linecard all portset all backplane all test
dcb-policy buffer-threshold linecard all backplane all
Assign the DCB buffer configuration on the backplane ports. This setting takes precedence over the global buffer-threshold
setting.
Syntax
[no] dcb-policy buffer-threshold linecard <0-2>|all [port-set <0-3/all>]
backplane all <dcb-policy-name>
Parameters
buffer-threshold
Configure the profile name for the DCB buffer threshold
linecard
Enter the keyword linecard unit identification.
backplane all
Enter the keywords backplane all to assign DCB policy to the backplane ports.
Defaults None.
Command Modes GLOBAL CONFIGURATION
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.
Version Description
9.7(0.0) Introduced on the Z9500.
Usage
Information
You can configure the DCB buffer configuration on the backplane ports.
service-class buffer shared-threshold-weight
Create a service class and associate the threshold weight of the shared buffer with each of the queues per port in the egress
direction.
Syntax
[No] Service-class buffer shared-threshold-weight {[queue0 number] ||
[queue1 number] || [queue2 number] || [queue3 number] || [queue4 number] ||
[queue5 number] || [queue6 number] || [queue7 number]}
Parameters
buffer Define the shared buffer settings
shared-
threshold-weight
Specify the weight of a queue for the shared buffer space
queue 0 to queue
7
To apply the shared-threshold weight, specify the queue number
Data Center Bridging (DCB) 523