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Dell PowerEdge FN I/O Module Command Line Reference Guide 9.10(0.0)

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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#
                                             Dell#conf
                                             Dell(conf)#no dcb enable on-next-reload
                                             Dell(conf)#end
                                             Dell#
                                             Dell#write memory
                                             !
                                             Mar 18 00:21:49: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED:
                                             Copied running-config to startup-config in flash by default
                                             
                                             
                                             Dell#reload
                                             
                                             
                                             Proceed with reload [confirm yes/no]: y
                                             syncing disks... done
                                             unmounting file systems...
                                             unmounting /f10/flash (/dev/ld0e)...
                                             unmounting /usr (mfs:35)...
                                             unmounting /lib (mfs:24)...
                                             unmounting /f10 (mfs:21)...
                                             unmounting /tmp (mfs:15)...
                                             unmounting /kern (kernfs)...
                                             unmounting / (/dev/md0a)... done
                                             rebooting...
                                             
                                             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 
                                             P          (KB)             (KB)          (KB)           (KB)
                                             ---------------------------------------------------------------------
                                             0     0    3822             1912          832            450                  
                                             Dell(conf)#
                                             Dell#
Example (Enable) 
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#
                                             Dell#
                                             Dell#conf
                                             Dell(conf)#dcb enable on-next-reload
                                             Dell(conf)#end
                                             Dell#Mar 18 00:26:07: %STKUNIT0-M:CP %SYS-5-CONFIG_I:
                                             Configured from  console
                                             
                                             Dell#write memory
                                             !
                                             Mar 18 00:26:11: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED:
                                             Copied running-config to startup-config in flash by default
                                             
                                             
                                             Dell#
                                             Dell#reload
                                             
                                             Proceed with reload [confirm yes/no]: y
                                             syncing disks... done
                                             unmounting file systems...
                                             unmounting /f10/flash (/dev/ld0e)...
                                             unmounting /usr (mfs:35)...
                                             unmounting /lib (mfs:24)...
                                             unmounting /f10 (mfs:21)...
                                             unmounting /tmp (mfs:15)...
                                             unmounting /kern (kernfs)...
                                             unmounting / (/dev/md0a)... done
                                             rebooting...
                                             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)#
Example (Enable DCB with Auto-Detect) 
Dell#show dcb 
                                             stack-unit 0 port-set 0
                                             DCB Status                               : Disabled
                                             PFC Queue Count                          :        2
                                             Total Buffer[lossy + lossless] (in KB)   :     3822
                                             PFC Total Buffer (in KB)                 :     1912
                                             PFC Shared Buffer (in KB)                :      832
                                             PFC Available Buffer (in KB)             :     1080
                                             Dell#
                                             Dell#
                                             Dell#con
                                             Dell(conf)#dcb enable auto-detect on-next-reload
                                             Dell(conf)#end
                                             Dell#Mar 18 00:35:19: %STKUNIT0-M:CP %SYS-5-CONFIG_I
                                             : Configured from  console
                                             
                                             Dell#write memory
                                             !
                                             Mar 18 00:35:24: %STKUNIT0-M:CP %FILEMGR-5-FILESAVED:
                                             Copied running-config to startup-config in flash by default
                                             
                                             
                                             Dell#
                                             Dell#reload
                                             
                                             Proceed with reload [confirm yes/no]: y
                                             syncing disks... done
                                             unmounting file systems...
                                             unmounting /f10/flash (/dev/ld0e)...
                                             unmounting /usr (mfs:35)...
                                             unmounting /lib (mfs:24)...
                                             unmounting /f10 (mfs:21)...
                                             unmounting /tmp (mfs:15)...
                                             unmounting /kern (kernfs)...
                                             unmounting / (/dev/md0a)... done
                                             rebooting...
                                             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)#

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