I have two ProCurve 1800-24G J9028B linked toghether by a fiber channel on ports n.23. I want an ethernet port (ex. port 21 of switch n1) to be isolated from all the others except of one of the other switch (ex. port 21 of switch n2). How to setup this VLAN by web interface? May i just add ports 21 to VLAN2 or I have also to add the 23 (fiber link) port?