Onboard your switch with 
ExtremeCloud™. Log in or create your XIQ administrator account in order to
            select your switch operating system with XIQ at 
https://extremecloudiq.com. 
Switch Engine
                is the default operating system for the Universal Hardware switch. You can change
                the switch OS from the Bootloader menu on initial activation only by completing the
                following steps:
        
        - 
                Using a terminal emulator such
                    as PuTTY or TeraTerm, connect to the switch using the serial port connection. 
                Be sure that your serial
                    connection is set properly: 
                        - Baud rate: Baud rate:
                            115200
- Data bits: 8
- Stop bit: 1
 
- 
                Once the switch is powered on,
                    after seeing the "Boot Menu" screen, press the [spacebar] key
                    within 30 seconds.
            
- 
                Use the down-arrow key to
                    select Change the
                        switch OS to Fabric Engine, then select Enter.
            
The switch installs  Fabric Engine, then resets. Once the NOS is selected, the "Boot Menu"
            will only wait for 3 seconds before continuing.
        To change the switch OS if you take
            no action during the initial boot, see Change the Switch OS via the Startup Menu.