Method, system and optical line terminal for obtaining malfunction information of optical network unit

Abstract

The present invention provides a method, a system and an Optical Line Terminal (OLT) for acquiring fault information of an Optical Network Unit (ONU). The method includes the following steps: an OLT device receives a fault information collecting command, which is sent from a fault analysis server and carries an ONU access identifier, and sends a fault information acquiring request to the ONU device corresponding to the ONU access identifier; the OLT device dynamically allocates time slots from the time slots of E1 according to the current time slot load of E1, and receives the fault information acquired by the ONU device on the channel resource corresponding to the time slots dynamically allocated, wherein the OLT device connects to the ONU device with E1; and the OLT device sends the fault information returned from the ONU device to the fault analysis server. With the technical solution of the present invention, the utilization ratio of the time slot resource of E1 is increased, thus decreasing the occurrence probability of abnormity while communication service signaling is being transmitted on E1.

Description

technical field [0001] The invention relates to the communication field, in particular to a method, a system and an optical line terminal for acquiring fault information of an optical network unit. Background technique [0002] The OLT (Optical Line Terminal, Optical Line Terminal) equipment in the access network equipment and the ONU (Optical Network Unit, Optical Network Unit) equipment establish a communication connection through E1, and the ONU equipment is generally distributed at the remote end; an OLT equipment may need to be connected A plurality of ONU devices, and management information for managing the plurality of ONU devices is stored in the OLT device. [0003] When an ONU device connected to the OLT device has a service exception, it is necessary to obtain the system operation log of the ONU device, software debugging information, and other fault information for locating system faults. At present, the fault information of the ONU device is obtained mainly in ...

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Problems solved by technology

However, there are the following technical defects in the method of obtaining the fault information of the ONU equipment: on the one hand, when the data volume of the fault information to be obtained is large, since the E1 signaling channel is used to transmit both the fault information and the communication service data, As a result, a large load is brought to the E1 signaling channel, which may affect the normal communication of the communication service, and even cause an abnormal problem in the signaling transmission; moreover, the communication service of the access network is controlled by the switch of the core network. If abnormal signaling on the access network side occurs more frequently, the switch will block the access network users, and manual intervention is required to recover; using this method of obtaining fault information, when it is necessary to diagnose faults that are closely related to traffic, Obtain fault diagnosis information when the business of the E1 signaling channel is relatively busy, so that the E1 signaling channel cannot meet the transmission of communication service signaling and fault diagnosis information at the same time; on the other hand, the hardware storage resource space of OLT equipment is limited, which is not suitable for storage A large amount of fault information is inconvenient for data analysis and cannot provide a friendly man-machine interface for windows platform software

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