What does Cold start mean?

[jeffrey_alvin_s]

I have a switch where in the ICX 7450 where its system up time were back to 0... How can I identify if it is user triggered or if the switch reach a threshold causing it to reboot.

Thanks

[simon_pollard]

Hi

Cold Start means that the system was powered on, so it looks like the switch has been through a power outage. Either a local power outage or someone switched it off and on again at the power outlet.

If the switch had restarted itself then the reason given would be Warm Start e.g. 
The system : started=warm start   reloaded=by "reload"

Simon

[jeffrey_alvin_s]

Hi Simon

I have configured a logging buffer 1000 on the ICX 7450. and unfortunately before I was able to configure the logging server on the switch, the system uptime got to 0,

Is there a way for us to determine the cause of this service restart?

base from the logs on the switch i can see that the temperature is normal

Fan controlled temperature: 33.0 deg-C

Fan speed switching temperature thresholds:
                Speed 1: NM<----->60       deg-C
                Speed 2:       50<-----> 80 deg-C (shutdown)

Fan 1 Air Flow Direction:  Front to Back
Fan 2 Air Flow Direction:  Front to Back
Slot 1 Current Temperature: 25.0 deg-C (Sensor 1), 33.0 deg-C (Sensor 2), 30.5 deg-C (Sensor 3), 22.5 deg-C (Sensor 4)
Slot 2 Current Temperature: 23.0 deg-C (Sensor 1)
Slot 3 Current Temperature: 24.5 deg-C (Sensor 1)
Slot 4 Current Temperature: 26.0 deg-C (Sensor 1)
        Warning level.......: 70.0 deg-C
        Shutdown level......: 80.0 deg-C

the fans are working as normal. 

I have also downloaded the tech-support logs. 

Thanks!
Jeff

[simon_pollard]

Hi Jeff

If the system information at the bottom of the show version output says "Cold Start" then the switch has been through a power outage. Either a local power outage or someone switched it off and on again at the power outlet.There is no way for the switch to know the reason why it's power supply was cut.

Simon

[jeffrey_alvin_s]

Thank you Simon I really do Appreciate your quick response 🙂