What's the different between "Forbidden" and "Excluded"?

Options

The VLAN setting on GS1900 provides two options on the VLAN port setting page, "Forbidden" and "Excluded." Both means the port is not a member of this VLAN. But "Excluded" will join this VLAN group once it receives GVRP information (GARP). "Forbidden" will prohibit this port from joining this VLAN group.

Zyxel Melen