TAILIEUCHUNG - IOS Recovery Troubleshooting

The switch IOS is stored in Flash memory. Additionally the Flash memory will often contain Web based HTML files, NVRAM emulation configuration storage, VLAN configuration, and environmental settings. For various reasons, the Flash may get erased by accident or by simple hardware failure. | Lab IOS Recovery Troubleshooting New Switch 2900XL-Ent Console Port Client Objective The switch IOS is stored in Flash memory. Additionally the Flash memory will often contain Web based HTML files NVRAM emulation configuration storage VLAN configuration and environmental settings. For various reasons the Flash may get erased by accident or by simple hardware failure. This lab requires the formatting of flash and reloading the IOS through Xmodem using the console port. The IOS html and client Java plug-in files will either need to be downloaded from CCO or your instructor may provide them. Please plan for a 30-minute transfer time. Research the Xmodem protocol on the internet for more information. A CCO document on recovering from a missing or corrupt IOS can be found at http warp public 473 or http warp public 473 pages 12-18. Note The Catalyst IOS image that is loaded is contained with the original zip file. You may want to change the image to fit your classroom requirements. Scenario As the Enterprise Network Administrator you received a new 2900XL-Ent switch that needs to be installed onto your network. Accidentally you deleted the .bin file from the Flash and rebooted the switch making a TfTp file transfer unworkable. You must completely restore the Flash contents including the IOS bin file and all switch associated HTML files from the IOS tar file. From Cisco doc Note In the X-modem download only the .bin file is used. DO NOT try to copy the combined .tar file using this method. Lab Tasks Build the network according to the diagram above. Delete the existing configurations on the switches. Switch erase startup-config Erasing the nvram filesystem will remove all files Continue confirm y OK Erase of nvram complete 1-5 Semester 8 Internetwork Troubleshooting - Lab Copyright 2001 Cisco Systems Inc. Format the flash. Switch format flash Format operation may take a while. Continue .

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