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New Member

Lost config in nvram

I have a 4506 switch that has a tendency to lose it's saved configuration after a power loss. It reverts to the switch's default configuration. I am running the following IOS ... Version 12.2(25)EWA11, RELEASE SOFTWARE (fc1). Has anyone experienced this behavior?

Keith Groves

4 REPLIES
Hall of Fame Super Gold

Re: Lost config in nvram

Does it loose the config if, say, you reboot the switch too? Check the config register.

Re: Lost config in nvram

What is your show version output?

Purple

Re: Lost config in nvram

I have seen it happen when you take a power hit , it then starts to reboot and takes another quick power hit . It may be something like that , you can test if you have downtime by just normally powering off and then powering on a couple of times , if it boots normally that may be whats happening but I am not sure there is any way around it unless its critical then you need to look at UPS's to keep that from happening.

New Member

Re: Lost config in nvram

Hi,

# dir flash

OR

#sh flash

you may have a config file in your flash.

hope it help

Yang

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