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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.
Default 2
Command Modes CONFIGURATION mode
Supported Modes Programmable-Mux (PMUX)
Full–Switch
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.6(0.0) Supported on the FN 2210S Aggregator.
9.3(0.0) Supported on the M I/O Aggregator.
9.3(0.0) Supported on the MXL 10/40GbE Switch IO Module 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 enable auto-detect on-next-reload
Enables or disables global DCB on a subsequent reload. Also internally configures PFC buffers based on DCB enable or disable.
You must save and reload for the configurations to take effect. You can use the auto-detect keyword to re-enable IOA with
the port-wise DCB auto detect feature.
Syntax
dcb enable [auto-detect | on-next-reload]
To disable global DCB on a subsequent reload, use the no dcb enable on-next-reload command.
Parameters
auto-detect Enter the keywords auto-detect to re-enable the Aggregator with port wise
DCB auto detect feature.
on-next-reload Enter the keywords on-next-reload to apply DCB configurations on
subsequent reload.
Defaults DCB is globally enabled with auto-detect feature.
Command Modes
● CONFIGURATION
Supported Modes All Modes
Command
History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.4(0.0) Supported on the FN I/O Aggregator.
8.3.17.3 Added auto-detect parameter on the M I/O Aggregator.
364 Data Center Bridging (DCB)