Dell PowerConnect 8100 Series User's Configuration Guide - Page 312

the switch through the console port to access the boot menu. The image files may contain firmware for the PHY processors on the switch. The PHY firmware may be updated to the firmware version supported by the switch firmware during the boot process or, in the case of switches that support the hot swap of cards, when the card is inserted into the switch. Editing and Downloading Configuration Files Each configuration file contains a list of executable CLI commands. The commands must be complete and in a logical order, as if you were entering them by using the switch CLI. When you download a startup-config or backup-config file to the switch, the new file replaces the previous version. To change the running-config file, you execute CLI commands either by typing them into the CLI or by applying a configuration script with the script apply command. The startup-config and backup-config files can also be applied to the running-config by using the script apply command. Creating and Applying Configuration Scripts When you use configuration scripting, keep the following considerations and rules in mind: • The application of scripts is partial if the script fails. For example, if the script executes four of ten commands and the script fails, the script stops at four, and the final six commands are not executed. • Scripts cannot be modified or deleted while being applied. • Validation of scripts checks for syntax errors only. It does not validate that the script will run. • The file extension must be .scr. • A maximum of seven scripts are allowed on the switch. • The combined size of all script files on the switch cannot exceed 2 MB. • The maximum number of configuration file command lines is 2000. You can type single-line annotations in the configuration file to improve script readability. The exclamation point (!) character flags the beginning of a comment. The comment flag character can begin anywhere within a single 312 Managing Images and Files