I have a 3750G switch that has repeatedly developed a corrupt IOS file. It has happened 5 or 6 times this year after which I would reload the IOS and then everything will work fine for a month or so, then it happens again. Can anyone tell me if they have experienced this problem before and do you think it is a hardware problem?
You've unfortunately hit a hole-in-one in terms of IOS bug and it's a very bad one too. IOS upgrade is the only way to fix it.
Message was edited by: leolaohoo
Giuseppe's right (+5). Everytime the switch crashes it creates a file or subdirectory called crashinfo. If the flash isn't cleaned out and it keeps crashing the switch will go to a state called crash-n-boot loop. The switch will crash, creates a crashinfo file/subdirectory. But since there's no more room at the "inn" or flash the switch will crash until someone will have to intervene. Initially it will look like the IOS is corrupted but it isn't.
To delete subdirectories, use the command "delete /f /r flash:"
Now even if you've cleaned out the flash and you still get this error message about the "mzip files" then as Giuseppe has said, IOS upgrade is the way to go. You have two avenues of doing this: you can upgrade the IOS and boot the switch OR you can pump the IOS (if you have enough flash space) and wait for the next crash.
Hope this helps and don't forget to rate useful posts.
you should consider an IOS upgrade.
if I've understood you are meaning that the switch crashes and each time a crash file is written on flash
the IOS image is loaded in memory at startup.
Do you check the file on flash with verify comand and you find that is corrupted?
if so you should think of finding a way to replace the internal flash
Hope to help