Allied Telesis AT-S41 - Manual (Page 207)

AT-S41 User’s Guide
207
For example, if you wanted to make Port 5 an untagged port of a
VLAN with a VID of 7, you would change the PVID for Port 5 to the
value 7.
4. Click the Apply button.
Once a new PVID has been assigned to a port, the port is removed as
an untagged port from its current VLAN and added to the other VLAN
as an untagged port.
If the port is also an tagged member of any VLANs, it remains as a
tagged member of those VLANs.
5. Repeat steps 2 and 4 to assign new PVIDs to any other ports in the
stack that are to be untagged members of the VLAN.
This completes the procedure for modifying a VLAN.