Method, device and system for processing power failure of optical network unit

Abstract

The embodiment of the invention provides a method, a device and a system for processing the power failure of an optical network unit. The method comprises the following steps: acquiring the power failure maintenance information of the optical network unit, wherein the power failure maintenance information comprises a power failure maintenance time and / or a power failure maintenance parameter; andwhen the optical network unit is disconnected, executing power failure processing on the optical network unit according to the power failure maintenance information of the optical network unit. The method, the device and the system solve the problem in the prior art that an optical line terminal cannot correctly judge the power failure of the optical network unit when the optical network unit is in power failure or an optical distribution network is at fault, ensure that the optical network unit finishes the report of a power failure indication within the power failure maintenance time, improve the stability of the optical network unit to report the power failure indication, and also provide more precise input for fault diagnosis.

Description

technical field [0001] The invention relates to network technology in the communication field, and specifically refers to a method, device and system for power-down processing of an optical network unit. Background technique [0002] The general passive optical network (Passive Optical Network, PON for short) technology is a point-to-multipoint optical access technology. The PON network is composed of an optical line terminal (Optical Line Terminal, OLT for short), an optical distribution network ODN, and an optical network unit (Optical Network Unit, ONU for short). Such as figure 1 Shown is a schematic diagram of the PON network architecture in the prior art. The OLT provides a network-side interface for the PON system and connects to one or more ODNs; the ODN is a passive optical distribution network, which is used to connect the optical line terminal OLT and the optical network unit ONU or optical network The terminal ONT is used to distribute or multiplex data signals...

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Problems solved by technology

[0005] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: when under the same OLT, the power-down maintenance capability of the ONU is unknown or the OLT processing capacity is limited, when the ONU power-off or ODN failure occurs, the OLT Unable to correctly judge whether it is the ONU power-off problem or the ODN fault problem, which makes the OLT unable to perform timely and accurate power-off processing for the power-off ONU

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