CLI Guide

dcb enable pfc-queues
Configure the number of PFC queues.
Syntax
dcb enable pfc-queues value
Parameters
value Enter the number of PFC queues. The range is from 1 to 4.
The number of ports supported based on lossless queues
configured will depend on the buffer.
Command Modes CONFIGURATION mode
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.3(0.0) Introduced on the MXL platform.
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
Dell(conf)#dcb pfc-queues 4
dcb {ets | pfc} enable
Enable priority flow control or enhanced transmission selection on interface.
Syntax
dcb {ets | pfc} enable
• To disable ETS on interface, use “no dcb ets enable” command.
• To disable PFC on interface, use “no dcb pfc enable” command.
Defaults Enable
Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
512
Data Center Bridging (DCB)