Users Guide

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.
8.3.17.0 Supported on the M I/O Aggregator.
Example (Disable)
Dell#show dcb stack-unit 0 port-set 0
stack-unit 0 port-set 0
DCB Status: Enabled, PFC Queue Count: 4
stack-unit Total Buffer PFC Total Buffer PFC Shared Buffer PFC Available Buffer
PP (KB) (KB) (KB) (KB)
-------------------------------------------------------------------
0 0 3822 1912 832 450
Dell(conf)#
Dell#
Dell#
102 Data Center Bridging (DCB)