PowerConnect B-Series FCX Configuration Guide 6753-1002266-01Loading and saving configuration files 3Dynamic configuration loadingYou can load dynamic configuration commands (commands that do not require a reload to takeeffect) from a file on a TFTP server into the running-config on the Dell PowerConnect device. Youcan make configuration changes off-line, then load the changes directly into the devicerunning-config, without reloading the software.Usage considerations• Use this feature only to load configuration information that does not require a software reloadto take effect. For example, you cannot use this feature to change statically configuredmemory (system-max command) or to enter trunk group configuration information into therunning-config.• Do not use this feature if you have deleted a trunk group but have not yet placed the changesinto effect by saving the configuration and then reloading. When you delete a trunk group, thecommand to configure the trunk group is removed from the device running-config, but thetrunk group remains active. To finish deleting a trunk group, save the configuration (to thestartup-config file), then reload the software. After you reload the software, then you can loadthe configuration from the file.• Do not load port configuration information for secondary ports in a trunk group. Since all portsin a trunk group use the port configuration settings of the primary port in the group, thesoftware cannot implement the changes to the secondary port.Preparing the configuration fileA configuration file that you create must follow the same syntax rules as the startup-config file thedevice creates.• The configuration file is a script containing CLI configuration commands. The CLI reacts toeach command entered from the file in the same way the CLI reacts to the command if youenter it. For example, if the command results in an error message or a change to the CLIconfiguration level, the software responds by displaying the message or changing the CLI level.• The software retains the running-config that is currently on the device, and changes therunning-config only by adding new commands from the configuration file. If the running configalready contains a command that is also in the configuration file you are loading, the CLIrejects the new command as a duplicate and displays an error message. For example, if therunning-config already contains a a command that configures ACL 1, the software rejects ACL1 in the configuration file, and displays a message that ACL 1 is already configured.• The file can contain global CONFIG commands or configuration commands for interfaces,routing protocols, and so on. You cannot enter User EXEC or Privileged EXEC commands.• The default CLI configuration level in a configuration file is the global CONFIG level. Thus, thefirst command in the file must be a global CONFIG command or “ ! ”. The ! (exclamation point)character means “return to the global CONFIG level”.NOTEYou can enter text following “ ! “ as a comment. However, the “ !” is not a comment marker. Itreturns the CLI to the global configuration level.
