The switch got rebooted and no idea why its happend...
11/02/2014 04:41:22.11 Input voltage to External Power Supply in slot 2 is on. Output enabled. 11/02/2014 04:41:22.11 External Power Supply in slot 2 is present.
11/02/2014 04:41:22.11 Input voltage to Internal Power Supply in slot 2 is on. Output enabled.
11/02/2014 04:41:22.11 Internal Power Supply in slot 2 is present.