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How to configure Cisco's 3750 Layer 3 switch for fallback IOS booting

Our switching expert explains how to configure your Cisco 3750 Layer 3 (L3) switch to automatically boot your system from the IOS kept on the TFTP server, in this response on fallback booting.

QUESTION: I want to configure Cisco 3750 Layer 3 switch for fallback IOS booting, so that when the IOS of the switch gets corrupted it should automatically boot from the IOS kept on TFTP server. I have searched a lot on Google but I am not getting how to configure it. Can you please guide me through this?

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Using "boot system TFTP ‹ip address of tftp server›" in global configuration will let you boot from the TFTP server if there is no other file on the flash or ROM.

Hope this helps.

This was first published in November 2008

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