CIMC ping fails few seconds after power cycle

[muthu]

i have a Cisco UCS C210 Server in the lab. I had to power cycle the server for some reason. After power cycling, the CIMC ping works for some time (for about 10 seconds) and after that it becomes unreachable.

I tried hooking up the VGA terminal to the back panel. I was able to see the CIMC IP address and such set correctly. Then i exit the CIMC settings page and let it boot up..At that point it loses IP connectivity.

Any hints on what could be going wrong here ?

[Walter Dey]

Is the CIMC in the same IP subnet ? is there a router in the path ? fw ? 

Was it ever working or not ? 

Check arp cache, mac address on the switches

[muthu]

thanks Walter for the response. This UCS had been working for the past one year.

There is a switch in the path (that connects to the engineering lab network).

I don't have access permissions to the switch to check that out.

[Walter Dey]

If this has been working before, and you didn't make any changes ...could it be duplicated IP address ? Turn off the server, and ping the CIMC IP address.

[muthu]

Hi walter,

Thanks for your time. Our lab admin was able to resolve the IP address issue. Not sure what the problem was though. It seems to work now.