Cisco Systems EA6500 Manual De Usuario

When configuring the switching mode, note the following syntax information:

To allow use of nonfabric-enabled modules or to allow fabric-enabled modules to use bus mode, 
enter the fabric switching-mode allow bus-mode command.

To prevent use of nonfabric-enabled modules or to prevent fabric-enabled modules from using bus 
mode, enter the no fabric switching-mode allow bus-mode command.

When you enter the no fabric switching-mode allow bus-mode command, power is removed from any 
nonfabric-enabled modules installed in the switch.

To allow fabric-enabled modules to use truncated mode, enter the fabric switching-mode allow 
truncated command.

To prevent fabric-enabled modules from using truncated mode, enter the no fabric switching-mode 
allow truncated command.

To configure how many fabric-enabled modules must be installed before they use truncated mode 
instead of bus mode, enter the fabric switching-mode allow truncated threshold number command.

To return to the default truncated-mode threshold, enter the no fabric switching-mode allow 
truncated threshold command.

The commands in this section are supported only with Release 12.1(11b)E and later.

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

If you enter the fabric required command on a switch that does not have a Switch Fabric Module 
installed, all modules except the supervisor engine turn off.

When configuring fabric-required mode, note the following syntax information:

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.

Router(config)# fabric required 

Configures fabric-required mode, which prevents switching 
modules from operating without a switch-fabric module.

Router(config)# no fabric required 

Clears fabric-required mode.