Attached you´ll find the screes.
I tried it only with default vlan and trunk configured on ports 19,21 and 23.
And i tried with adding a vlan named "ohoh" with id 2121 (same as portgroup in vmware) and mark
trunk (of ports 19,21 and 23) as tagged.
Screens are of both version.
Also i tried it with gvrp enabled and disabled (as someone said i should test).
Regards