Command:

fabric required


Mode:

Router(config)#


Syntax:

fabric required

no fabric required

 

Syntax Description:

column1 row 1 column 2 row1
column1 row 2 column 2 row2

 

Command Description:

If you boot the switch with fabric-required mode configured but without a Switch Fabric Module installed, only the supervisor engine receives power; no switching modules power up.

When the switch is operating with fabric-required mode configured and a Switch Fabric Module installed, if you remove the switch fabric module or if it fails, the switch removes power from all switching modules; only the supervisor engine remains active.

When the switch is operating with fabric-required mode configured and with redundant Switch Fabric Modules installed, if you remove both switch fabric modules or if both fail, the switch removes power from all switching modules; only the supervisor engine remains active.


Example:

To configure fabric-required mode, which prevents all switching modules from operating unless there is a Switch Fabric Module installed, perform this task:

Router(config)#fabric required
Router(config)#no fabric required


Misconceptions:

None.


Related Commands

fabric switching-mode allowed


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