I'm trying to delete old vlans and have the database back to default on a stack of 3850s.
I've removed the VLAN.DAT from each flash directory so it has completely gone. Rebooted but all old vlans still are there.
I tried changing the switch to different vtp modes also and also the VTP domain name. Everytime I reload though the old VLANS are still there. I know I can manually remove them using no vlan xxxx but there are a lot and there must be an easier way.