VLAN filtering on the ethernet interface. This applies to user traffic only not management traffic however to enable VLAN filtering a Unit Management VLAN configuration must be set. See sub10UnitMgmtVlan. IMPORTANT: This object is controlled by transaction management. Any changes to this object must be transactionally acknowledged following a successful set thus protecting against loss of communication with the unit. To acknowledge the transaction set the object sub10UnitMgmtTransaction to transactionCommit(2).