Xerox NS-2260 - Manual (Page 118)

A Port-based VLAN group contains the following settings:
VLAN name : Name of the VLAN group
Group ID : Unique ID for the group
Member ports : list of ports belonging to the group ID
Click [Apply] to confirm the changes.
Note:
If the trunk groups exist, you can see it (ex:TRK1,TRK2_..) in select menu of ports, and you can configure
it as the member of the VLAN or not.