Method for acquiring association between PON ports, optical network device and optical network system

Abstract

The invention discloses a method for acquiring the association between PON ports, an optical network device and an optical network system, belonging to the field of communication. An OLT where a protection PON port is located receives a protection message transmitted by an optical network unit, analyzes the protection message, obtains an identifier, carried in the message, of a working PON port, and acquires the association between the working PON port and the protection PON port according to the received identifier of the protection PON port of the protection message. By implementing the method for acquiring the association between PON ports, the optical network device and the optical network system, the OLT where the protection PON port is located can acquire the association between the working PON port and the protection PON port, confirm that whether the protection message is legitimate or not according to the association or acquire the configuration information of the working PON port according to the association. Defects of a backup optical link when optical fibers are wrongly connected can be avoided.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a method for obtaining associations of PON ports, an optical network device and a system. Background technique [0002] Passive Optical Network (PON) is a point-to-multipoint optical access technology. The PON includes an Optical Line Terminal (Optical Line Terminal, OLT), an Optical Splitter (Optical Splitter), an Optical Network Unit (Optical Network Unit, ONU), and optical fibers connecting these devices. The OLT is connected to the optical splitter through a backbone optical fiber, and the optical splitter is connected to each ONU through multiple branch optical fibers. [0003] In order to ensure that the service of the ONU is not interrupted after the main optical fiber between the OLT and the optical splitter fails, a main optical link and a backup optical link can be established between the optical splitter and the OLT. When a link ...

AI Technical Summary

Problems solved by technology

[0005] At present, in the line construction, the construction personnel lay the optical fiber between the optical splitter 30 and the PON port, and the network management personnel configure the information for the PON port, because the two operations are two independent processes, which are very easy. A situation where the spare fiber is connected to the wrong spare PON port

In the prior art, the OLT equipment connected to the standby optical fiber has no way to automatically obtain the association relationship between the active PON port and the standby PON port, and cannot detect whether the standby optical fiber is connected incorrectly when the active PON port is working normally. Suppose that the PON port 20a is configured When PON port 20b and PON port 20b are mutually standby PON ports, if construction workers mistakenly connect the standby optical link to other PON ports, for example, when PON port 20m, since PON port 20m does not have the same configuration information as PON port 20a, the standby optical link road program will not function properly

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