Entry containing configuration information for a particular Virtual LAN. The relationship between the various port sets in a VLAN Entry are : o The set of ports defined by PortMembers must be a subset of the set of ports in the underlying STG of the VLAN. o The bitwise AND of PortMembers and NotAllowToJoin must be the empty set. o The bitwise OR of PortMembers and NotAllowToJoin must be the set of ports in the underlying STG of the VLAN. o The set of ports defined by StaticMembers must be a subset of the set of ports defined by PortMembers. o The bitwise XOR of PortMembers and StaticMembers defines the set of dynamic (potential) members of the VLAN. o The set of ports defined by ActiveMembers must be a subset of the set of ports defined by PortMembers.