C3750-ipservicesk9-tar.150-2.se11.tar -

This file is a . 1. File Identification & Breakdown Let's decode the filename:

Switch(config)# boot system flash:/C3750-ipservicesk9-mz.150-2.se11.bin C3750-ipservicesk9-tar.150-2.se11.tar

Switch# archive tar /x flash:C3750-ipservicesk9-tar.150-2.se11.tar flash: (point to the extracted .bin ): This file is a