Description: This object is used to power down the EPON interface. The interface may be unavailable while the power down occurs and data may be lost. Setting this object to true(1) will cause the interface to enter into power down mode. Setting this object to false(2) will cause the interface to go out of power down mode. When getting true(1), the interface is in power down mode. When getting false(2), the interface is not in power down mode. The write operation is not restricted in this document and can be done at any time. Changing dot3ExtPkgObjectPowerDown state can lead to a power down of the respective interface, leading to an interruption of service of the users connected to the respective EPON interface. This object is applicable for an OLT and an ONU. At the OLT, it has a distinct value for each virtual interface. A power down/up of a specific virtual interface affects only the virtual interface and not the physical interface. Hence a virtual link, which needs a certain handling, can be powered down and then powered up without disrupting the operation of other virtual interfaces. The object is relevant when the admin state of the interface is active as set by the dot3MpcpAdminState.