Cisco 7206 Installation Guide - Page 139

Appendix B Configuration Register Information Configuration Bit Meanings (DRAFT LABEL) ALPHA DRAFT - CISCO CONFIDENTIAL in ROMmon. If bit 13 is not set, the router will continue to netboot images indefinitely. The default setting for bit 13 is 0. If bit 13 is set, the system boots the boot helper image found in boot flash memory without any retries. The server creates a default filename as part of the automatic configuration processes. To form the boot filename, the server starts with Cisco and links the octal equivalent of the boot field number, a dash, and the image name. Table B-3 lists the default boot filenames or actions. Note A boot system configuration command in the router configuration in NVRAM overrides the default netboot filename. Table B-3 Default Boot Filenames Action/File Name Bootstrap mode ROM software Flash software cisco3-< image-name1> cisco4- cisco5- cisco6- cisco7- cisco10- cisco11- cisco12- cisco13- cisco14- cisco15- cisco16- cisco17- Bit 3 Bit 2 Bit 1 Bit 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 Bit 6 Bit 6 causes the system software to ignore nonvolatile random-access memory (NVRAM) contents. Bit 7 Bit 7 enables the OEM bit. It disables the bootstrap messages at startup. OL-5102-02 Cisco 7206 Installation and Configuration Guide B-3