System Management Commands 1733show as detached in the show interfaces status command output. Whendowngrading switch firmware, Ethernet ports configured as stacking revert toEthernet ports. It is necessary to configure the Ethernet ports as stacking oneach unit in the stack individually after a firmware downgrade.Use the show switch command to display information regarding the switchesin a stack. Fortygigabitethernet ports are only supported on the N4000 seriesswitches. Redundant stacking links between any two units must operate atthe same speed. A 40G port configured in 4x10G mode is considered to beoperating at 10G speed.Up to eight stack ports can be configured per stacking unit (four in eachdirection).The N4000 series switches support up to twelve units configured in a stackand can utilize 10GBaseT, SFP+ or QSFP (N4000 series only) connectionsfor stacking. The N3000 and N2000 series switches support up to twelve unitconfigured in a stack and can utilize rear panel mini-SAS ports only forstacking.Exampleconsole(config-stack)#stack-port tengigabitethernet 1/0/3 stackconsole(config-stack)#stack-port interface shutdownUse this command to enable or disable the stack port administratively. Thiscommand is usually used to diagnose the stack in case any one of the stackports is exhibiting errors.Syntaxstack-portinterface-id shutdownno stack-portinterface-id shutdown•interface-id—The stacking interface identifier.Default ConfigurationThere no default configuration for this command.
