Auto response: at least in VLAN config screen....21 refers to 21F port... i wonder what happends if i plug a cable on 21T....unfurtunatley its in production and I do not feel like looking for...

Hello all im confused about STP ports....i have the port 21 unplugged and the 21F plugged. But in monitor or VLAN config, or many other config screen there is not config options for STP ports ¿?¿ but...