Planet GSD-802S User Manual page 37

It's import to remove the VLAN members from VLAN 1 configuration. Or the ports would become
overlap setting. ( About the overlapped VLAN configuration, see next VLAN configure sample)
3. Assign PVID for each port:
Port-1,Port-2 and Port-3 : PVID=2
Port-4,Port-5 and Port-6 : PVID=3
Port-7~Port-8: PVID=1
4. Enable VLAN Tag for specific ports
Link Type: Port-3 (VLAN-2) and Port-6 (VLAN-3)
The Per Port VLAN configuration in Figure 4-6-10 appears.
Figure 4-6-10 Port 1-Port 6 VLAN Configuration
User's Manual of GSD-802S / GSD-802PS