Loading switch config issue

The vlan definitions are not stored as part of the startup-config file. Instead, they are kept in a separate file called vlan.dat. Unfortunately, the format of this file is not text-compatable or eye-readable, although you can manipulate it with the usual copy commands. You can maintain vlan.dat contents either in config mode or in "vlan database" mode. When you enter "vlan" commands in config mode, they cause entries to be added to vlan.dat.

If you're wiping a switch that has been previously used, you need to delete the vlan.dat file to get rid of any previously-defined vlans. Otherwise, they have to be removed one at a time. Also, it would appear from your experience that the initial load of startup-config at boot time doesn't parse out the "vlan" commands the same as when entering them in config t.

Your simplest option would probably be to add "delete vlan.dat" to your script right after erasing the startup config, and then adding "copy start run" right before the reload. If the "copy start run" doesn't catch the vlan defs, then you could try filtering out the vlan definitions from each config, and tailor the script to insert them under either a "config t" or "vlan database" command.

Thanks for that. Weird, but at least I know how to handle it.

RB

If someone erased the flash file, is any other option to get back router on Router prompt istead of rommon one.