Save yourself some trouble and once in normal system mode, run the install all command to set the boot variables back to the currently loaded kickstart and system image. How to Reset a Cisco Catalyst 3550 / 3560 Switch to Factory Defaults Enter the following commands in the privileged mode: ( prompt) delete flash:vlan.dat Switchdelete flash:vlan.dat Delete filename vlan.dat Delete flash:vlan. –_Troubleshooting_Installs,_Upgrades,_and_Reboots#Recovery_from_the_loader.3E_Promptģ. Using a pin, press and hold the Reset button on the switch for 15 to 20 seconds. Disconnect all Ethernet cables from the switch. To recover from the bootloader prompt, follow the instructions posted here: When the switch fails to work and cannot be reset by using the web-based utility, the switch can be manually reset to restore the factory default configuration. The switch may boot into the “loader prompt” in which case you have also cleared the configuration which instructs the nexus which kickstarter and system image to boot. Warning: This command will erase the startup-configuration.ĭo you wish to proceed anyway? (y/n) yĢ. The switch will boot up and you should see the switch prompt as shown below. Once the switch is powered off, hold down the mode button, and power the switch on. Boot(Optional) Erases only the boot variable and mgmt0 interface configuration.ĭebug(Optional) Erases only the debug configuration. Note that I am assuming that you have already established a console connection to the switch using a Cisco serial cable (rollover cable).
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