This table is indexed by the same index that was created for the associated entry in the PW generic table in the PW-STD-MIB module. The pwIndex and the pwEnetPwInstance are used as indexes to allow multiple VLANs to exist on the same PW. An entry is created in this table by the agent for every entry in the pwTable with a pwType of 'ethernetTagged' or 'ethernet'. Additional rows may be created by the operator or the agent if multiple entries are required for the same PW. The value of pwEnetPwInstance can be arbitrary selected to make the row unique, however implementations that know the VLAN field value when the row is created MAY use the value of the VLAN itself for better readability and backward compatibility with older versions of this MIB module. This table provides Ethernet port mapping and VLAN configuration for each Ethernet PW. All read-create object in this table MAY be changed at any time, however change of some objects (for example pwEnetVlanMode) during PW forwarding state MAY cause traffic disruption. Manual entries in this table SHOULD be preserved after a re-boot, the agent MUST ensure the integrity of those entries. If the set of entires of a specific row are found to be non consistent after reboot, the PW pwOperStatus MUST be declared as notPresent(5).