Cisco WS-C2960-24TC-S Software Guide - Page 72
Default Boot Configuration, Automatically Downloading a Configuration File, Specifying the Filename
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Modifying the Startup Configuration Chapter 3 Assigning the Switch IP Address and Default Gateway Default Boot Configuration Table 3-3 Table 3-3 shows the default boot-up configuration. Default Boot Configuration Feature Operating system software image Configuration file Default Setting The switch attempts to automatically boot up the system using information in the BOOT environment variable. If the variable is not set, the switch attempts to load and execute the first executable image it can by performing a recursive, depth-first search throughout the flash file system. The Cisco IOS image is stored in a directory that has the same name as the image file (excluding the .bin extension). In a depth-first search of a directory, each encountered subdirectory is completely searched before continuing the search in the original directory. Configured switches use the config.text file stored on the system board in flash memory. A new switch has no configuration file. Automatically Downloading a Configuration File You can automatically download a configuration file to your switch by using the DHCP-based autoconfiguration feature. For more information, see the "Understanding DHCP-Based Autoconfiguration" section on page 3-3. Specifying the Filename to Read and Write the System Configuration By default, the Cisco IOS software uses the file config.text to read and write a nonvolatile copy of the system configuration. However, you can specify a different filename, which will be loaded during the next boot-up cycle. Beginning in privileged EXEC mode, follow these steps to specify a different configuration filename: Step 1 Step 2 Command configure terminal boot config-file flash:/file-url Step 3 end Step 4 show boot Step 5 copy running-config startup-config Purpose Enter global configuration mode. Specify the configuration file to load during the next boot-up cycle. For file-url, specify the path (directory) and the configuration filename. Filenames and directory names are case sensitive. Return to privileged EXEC mode. Verify your entries. The boot config-file global configuration command changes the setting of the CONFIG_FILE environment variable. (Optional) Save your entries in the configuration file. 3-12 Catalyst 2960 Switch Software Configuration Guide OL-8603-04
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