ONT/ONU authentication method and system in PON system

Abstract

The invention provides an ONT / ONU authentication method and a system in a PON system, wherein, the method comprises the following steps: step 1, a table is arranged on an OLT central office, and one or a plurality of ONT / ONU labels and one or a plurality of ONT / ONU present distances in a PON port are stored in the table in one to one correspondence; step 2, when every ONT / ONU is online, the actual distance of ONT / ONU is measured, and the corresponding records of ONT / ONU are searched according to the ONT / ONU labels in the table; step3, the actual distance measured is compared with the present distance in other records that are different from the ONT / ONU records in the table; and step 4, according to the comparison results, ONT / ONU is authenticated whether valid or not. Therefore, the invention can be adopted to effectively discover whether mobile ONT / ONU exists, furthermore authenticate ONT / ONU and confirm whether users damage the interests of operators maliciously.

Description

Technical field [0001] The present invention relates to network element equipment, and more specifically, to an authentication method and system for an optical network terminal (ONT) / optical network unit (ONU) in a passive optical network system. Background technique [0002] In a passive optical network (PON, Passive Optical Networks) system, usually an optical line terminal (OLT) connects multiple ONT / ONUs through an optical distribution network (ODN, Optical Distribution Network), generally 1:32, 1:64 or 1:128, etc., and each ONT / ONU is represented by its unique identifier. For example, the EPON system can be uniquely identified by its media access control (MAC, Medium Access Control) address, and the GPON system can be uniquely identified by its serial number ( SN, Serial Number) to uniquely identify, all ONT / ONUs under an OLT PON can work normally regardless of which branch is connected to the ODN, without limiting the branch fiber originally allocated, and the original allo...

AI Technical Summary

Problems solved by technology

[0006] First of all, it is necessary to set its predetermined position information. This value needs to be set more accurately, but it is not easy to obtain this value accurately in engineering or in practical applications.

In addition, in order not to misjudgment the user, in the actual use process, it is necessary to continuously modify the user's predetermined location information, and it is difficult to ensure the correctness of the modification of the predetermined location information, so the operability is poor, and it is easy to cause misjudgment;

[0007] Secondly, for users who actually need to move normally, for example, after the user moves, they still need to use their original terminal equipment (ONT / ONU). At this time, their actual distance will definitely change greatly. If you have your own predetermined position for comparison, it will definitely cause misjudgment;

[0008] Third, if a user's branch fiber fails (for example, fiber breaks, etc.), the fiber needs to be replaced; or the actual measured distance changes greatly due to aging, etc., using this method, compared with its predetermined location information, misjudgment

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