Перезагрузить один из коммутаторов в стеке можно командой reload slot
Switch#reload slot 3
Proceed with reload? [confirm]
Switch#
Switch#sh switch
*Mar 1 00:05:12.962: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 1 Switch 4 has changed to state DOWN
*Mar 1 00:05:13.020: %STACKMGR-4-STACK_LINK_CHANGE: Stack Port 2 Switch 1 has changed to state DOWN
*Mar 1 00:05:14.052: %STACKMGR-4-SWITCH_REMOVED: Switch 3 has been REMOVED from the stack
*Mar 1 00:05:14.044: %STACKMGR-4-SWITCH_REMOVED: Switch 3 has been REMOVED from the stack (Switch-4)
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 04fe.7f01.0000 3 0 Ready
3 Member 0000.0000.0000 0 0 Removed
4 Member 04fe.7f00.0000 1 0 Ready