Administrator Guide

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 to be allocated 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
DellEMC(conf-if-te-1/1)# dcb-policy buffer-threshold test
dcb-policy buffer-threshold (Global
Configuration)
Assign the dcb buffer threshold policy on the stack ports. To apply the dcb buffer threshold policy on the stack-units, use the
configuration mode. To apply on front-end ports, use the interface mode.
Syntax
dcb-policy buffer-threshold stack-unit all stack-ports all profile-name
Parameters
dcb-buffer-
threshold
Configure the profile name for the DCB buffer threshold
profile-name Enter the name of the profile, which can be a string of up to 32 characters in length.
stack-unit all Enter the stack unit identification. Indicates the specific the stack unit or units. Entering
all shows the status for all stacks.
stack-port all Enter the port number of a port in a switch stack.
Default None
Command Modes CONFIGURATION mode
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.9(0.0) Introduced on the S6000 and the S6000–ON.
9.8(0.0) Introduced on the S4048-ON.
9.6(0.0) Introduced on the S5000.
9.3(0.0) Introduced on the S4810 and S4820T platforms.
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 manage and administer the
behavior of lossless queues.
Example for
Configuration
Mode
Dell(conf)# dcb-policy buffer-threshold stack-unit all stack-ports all test
Example for
Interface Mode
Dell(conf-if-te-1/1)# dcb-policy buffer-threshold test
show qos dcb-buffer-threshold
Displays the DCB buffer threshold assigned to a QoS policy.
Syntax
show qos dcb buffer-threshold {name}
Data Center Bridging (DCB) 511