Decompilation Configuration Overview
Device configuration can be performed in two ways. The first is called the default configuration, that does not require user configuration. After the DUT is powered on for the first time, or after the startup configuration is cleared, the existing configurations, such as the admin user, ensure that the DUT satisfies the simple usage environment. The second configuration is to increase or modify the configuration, such as creating vlan 2, modifying pvid = 2.
Device configuration can be classified into three types based on the method of saving:
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Temporary Cache Configuration - Also called Current Running configuration, this configuration does not exist after the DUT restarts.
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Startup Configuration - This configuration can be loaded either automatically or manually after the DUT is restarted.
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Flash Configuration - In this configuration, a small number of particularly important configurations will be saved directly to the flash: such as stacking configuration, user name configuration; stacking configuration will not enter the decompilation, that is, it will not be displayed in the show running-config command output, it can only be displayed by the show module command. User name configuration will enter the decompilation, that is, it will be displayed in the show running-config command output, as well as by the show module command. The configuration in flash is permanent and does not need to be saved with commands. To delete the flash configuration, use the no form of the corresponding command in the module.