Erasing VLANs? where do they exist?

MrXpert

I decided to post this here as i'm sure its more of a CCNA topic. I seem to be quite rusty on the CCNA material as today was the first time in nearly 6 months I had a go at configuring vtp and vlans. Just goes to show you really got to keep doing it otherwise you forget stuff.

I setup a few vlans and created a VTP domain. Afterwards I did a "write erase". It then asked me whether I wanted to save the config so i selected No. I did a reload of the switch but the vlans and vtp stuff still remained. It then struck me that i remember reading somewhere that it is stored elsewhere? not in startup-config?

What did i do wrong?
also is doing a write erase the recommended way of deleting the startup-config?

4_lom

You have to delete the VLAN.dat file.

MrXpert

4_lom wrote: »

You have to delete the VLAN.dat file.

thanks! that's the one.

Zartanasaurus

If I have physical access to the switch, just hold the button in for about 10 seconds and does a factory reset.

mapletune

Interesting. The startup-configuration is blown away but still appears in flash, albeit with “renamed” tacked on the end. The vlan.dat file is still present, so we retain our VTP settings.

Completely Clearing a Cisco Switch…Kinda « CCIE Pursuit Blog

Interesting read.

also, no setup express is your friend! =D