Cisco switchs have 3 configurations files.
- Active running config.
- Startup config
- Backup config.
Wen saving you should always save your RUNING config to RUN-CONFIG & STARTUP CONFIG & BACKUP Config.
This means you will end up with 3 copies of the running config, but the save format even its .txt differs.
If you try to import a running config file into running config (the current one runing, it will fail.)
You will need to import the runing config into startup config, save your changes and then reboot.
That will turn the running config into startup config witch will load at startup and become the runing config.
sounds confusion....its is but its how it works
