CN110971992B

CN110971992B - GPON docking method with learning function

Info

Publication number: CN110971992B
Application number: CN201911272478.9A
Authority: CN
Inventors: 瀛ｉ福; 季鸣
Original assignee: Taicang T&W Electronics Co Ltd
Current assignee: Taicang T&W Electronics Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-11-02
Anticipated expiration: 2039-12-12
Also published as: CN110971992A

Abstract

The invention discloses a GPON docking method with a learning function, which specifically comprises the following steps: step 1, the GPON equipment is provided with a PON port which can adapt to the wavelengths of the ONU and the OLT, and step 2, the GPON equipment is adjusted to a sniffing mode, meanwhile, the competitive product ONU and the OLT are connected, and the process that the competitive product ONU and the OLT are successfully connected once is recorded; step 3, checking whether a private ME exists; step 4, selecting an ONU mode, simulating a message reported by a competitive product ONU in a sniffing mode, and butting with the OLT; step 5, summarizing and summarizing the length and the specific value range of each subfield in the private Mass contents by adopting an exhaustion method; step 6, when an unknown docking interruption occurs, adjusting to an OLT mode for docking; and 7, repeating the steps 5-6, gradually arranging the structure and the content of the private ME, and then successfully butting. The invention can realize the successful butt joint of the GPON equipment.

Description

GPON docking method with learning function

Technical Field

The invention relates to the field of Gigabit Passive Optical Networks (GPON), in particular to a GPON docking method with a learning function.

Background

Fiber-to-the-home has become the mainstream of internet access. GPON network terminals are widely used as one of the most frequently used network access GPON devices in the past. The optical fiber internet access has huge market in telecom operator market, and has very many applications in industries and fields such as industry, building, school, traffic and the like.

Just because the GPON market is very huge, the number of manufacturers entering the field is very large, and the number of local side OLTs of various manufacturers at home and abroad is up to hundreds. The standards followed by GPON are generally ITU G.988 and ITU G.984. Although the standard is uniform, the standard has many private fields which can be flexibly operated by the manufacturer. In order to maintain the industry status of each manufacturer and protect the existing market, the most common practice is to define a private ME (management entity) to ensure that only the manufacturer terminal permitted by itself or itself can be successfully connected.

Therefore, the docking of the GPON equipment is always a difficult problem of the GPON equipment of the GPON terminal, and becomes a bottleneck for preventing the GPON equipment of the GPON terminal from being popularized.

Disclosure of Invention

The invention provides a GPON docking method with a learning function for solving the technical problems, which can solve the problem of successful docking of GPON equipment under the condition of private ME.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a GPON docking method with a learning function specifically comprises the following steps:

step 1, a GPON device is provided with a PON port which can adapt to the wavelengths of an ONU and an OLT, and has three modes of selecting an ONU mode, an OLT mode and a sniffing mode;

step 2, the GPON equipment is adjusted to a sniffing mode, meanwhile, the competitive product ONU and the OLT are connected, and the process that the competitive product ONU and the OLT are successfully docked once is recorded; the GPON equipment internally records the corresponding message content, the sending sequence and other information;

step 3, combing out the message of the interaction between the ONU and the OLT, and checking whether a private ME exists; when the judgment result shows that no private ME exists, the registration is successful by butting, and the registration process is finished; when the judgment result is that the ONU has the private ME, the OLT having the private ME cannot reply to the operation of the OLT for acquiring the information of the ONU, including Get and Mib upload, and then the ONU of the non-identical manufacturer enters the operation of step 4; the operation of Create, Delete and Set is relatively simple to realize, and the successful butt joint can be directly replied;

step 4, selecting the GPON equipment into an ONU mode, simulating a message reported by the competitive product ONU in the sniffing mode in the step 2, and carrying out one-time butt joint with the OLT;

step 5, adopting a gradual expansion method, continuously changing the Masage contents fields of the private ME by adopting an exhaustion method, carrying out butt joint for many times, summarizing the length of each subfield in the private ME and the range of a specific value, and recording each process through software in the process;

step 6, when unknown docking interruption occurs in the docking process, the GPON equipment is adjusted to be in an OLT mode, the reference ONU is used for docking, the message sequence and reply given to the GPON equipment by the OLT are simulated, and the reply message of the reference ONU is seen for recording and analyzing;

and 7, repeating the steps 5-6, gradually arranging the structure and the content of the private ME, and then successfully butting.

Further, the GPON equipment is double-PON-port GPON equipment.

Further, the sniffing mode is a mode of simultaneously connecting the ONU and the OLT, and in the sniffing mode, the GPON device is as a channel, one end of the GPON device is connected to the ONU and the other end of the GPON device is connected to the OLT, and the contents of messages on both sides are recorded.

Further, the method for determining whether the private ME exists is as follows: by combing the interactive messages, judging whether the interactive messages have private ME actions or not, and if the interactive messages have the private ME actions, determining that the interactive messages have the private ME actions; if there is no action of the private ME, it is no private ME.

Further, the actions of the private ME refer to the actions of Create, Delete, Get, Set, and Mib upload.

Compared with the prior art, the invention has the following beneficial effects:

the invention analyzes the message information of the OLT in the butt joint process, and can gradually try out the message structures and content rules of various unknown OMCI messages by adopting an exhaustion method due to the limited number of bytes of OMCI messages, so that the butt joint of the GPON OLT is no longer the bottleneck of hindering the popularization of GPON equipment of the GPON terminal.

Drawings

Fig. 1 is a flowchart of a GPON docking method with a learning function according to an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The main thing for implementing PON docking is to perform OMCI message interaction, and the OMCI message interaction logic is described in more detail in ITU g.988 and ITU g.984.

1. The basic OMCI message is only 48 bytes, and the specific contents are as follows:

the Transaction correlation identifier mainly indicates the priority of the message at the highest bit, the other bits are ID, and the two messages with the same ID are the relations between the OLT and the ONU in question and answer.

The Message Type defines the Type of the Message, and the ITU g.988 protocol specifies that the behavior of the GPON device can be twenty kinds, such as Set, Get, Create, Delete, and the like.

The Device identifier indicates whether it is a basic OMCI or an extended OMCI message.

The Managed entity identifier indicates a specific management entity name. This is the most critical field for interfacing, and there may be up to 65535 management entities in total. Wherein, the fields 240-255,350-399,65280-65535 are all fields for OLT manufacturers to develop.

OMCI docking is mainly a problem that needs to be solved in several ways: 1. reporting the private ME; 2. non-private ME information content;

3. and reporting the sequence and the opportunity of the ME information.

As shown in fig. 1, the GPON docking method with learning function of the present invention specifically includes the following steps:

step 1, a GPON device is provided with a PON port which can adapt to the wavelengths of an ONU and an OLT, and has three modes of selecting an ONU mode, an OLT mode and a sniffing mode; the sniffing mode is a mode for simultaneously connecting the ONU and the OLT;

step 2, the GPON equipment is adjusted to a sniffing mode, meanwhile, the competitive product ONU and the OLT are connected, and the process that the competitive product ONU and the OLT are successfully docked once is recorded; the GPON equipment internally records the corresponding message content, the sending sequence and other information; (when docking GPON equipment, the reference needs to be the ONUGPON equipment which can be successfully docked, if there is no comparative ONUGPON equipment, the docking time is relatively long, or the docking can not be done at all)

Step 3, combing out the message of the interaction between the ONU and the OLT, and checking whether a private ME exists; when the judgment result shows that no private ME exists, the registration is successful if the butt joint is normally carried out, and the registration process is finished; when the judgment result is that the ONU has the private ME, the OLT having the private ME cannot reply to the operation of the OLT for acquiring the information of the ONU, including Get and Mib upload, and then the ONU of the non-identical manufacturer enters the operation of step 4; the operation of Create, Delete and Set is relatively simple to realize, and the successful butt joint can be directly replied;

in this step, the method of determining whether there is a private ME is: the interactive messages are combed, whether the interactive messages have actions of Create, Delete, Get, Set, Mib upload and the like of the private ME or not is judged, and if the interactive messages have the actions of Create, Delete, Get, Set, Mib upload and the like, the interactive messages are the private ME; if the actions of several private MEs such as Create, Delete, Get, Set, Mib upload and the like do not exist, the ME is no private ME;

step 5, because the general OMCI message only has 48 bytes, wherein the adjustable field Masage contents only has 32 bytes, therefore, a gradual expansion method is adopted, the Masage contents field of the private ME adopts an exhaustion method, continuous change and multiple butt joint are carried out, the length and the specific value range of each subfield in the private ME (generally, a structure body) are summarized, and each process is recorded through software in the process;

The embodiments described above are only preferred embodiments of the invention and are not exhaustive of the possible implementations of the invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. A GPON docking method with a learning function is characterized by comprising the following steps:

step 1, a GPON device is provided with a PON port which can adapt to the wavelengths of an ONU and an OLT, and has three modes of selecting an ONU mode, an OLT mode and a sniffing mode; the sniffing mode is a mode of simultaneously connecting the ONU and the OLT, and in the sniffing mode, the GPON equipment is like a channel, one end of the GPON equipment is connected with the ONU, the other end of the GPON equipment is connected with the OLT, and the contents of messages on the two sides are recorded;

step 2, the GPON equipment is adjusted to a sniffing mode, meanwhile, the competitive product ONU and the OLT are connected, and the process that the competitive product ONU and the OLT are successfully docked once is recorded; the GPON equipment internally records the corresponding message content and the information of the sending sequence;

step 3, combing out the message of the interaction between the ONU and the OLT, and checking whether a private ME exists; when the judgment result shows that no private ME exists, the registration is successful by butting, and the registration process is finished; when the judgment result is that the ONU has the private ME, the OLT having the private ME cannot reply to the operation of the OLT for acquiring the information of the ONU, including Get and Mib upload, and then the ONU of the non-identical manufacturer enters the operation of step 4; directly replying successful butt joint for Create, Delete and Set operations;

2. The GPON docking method with the learning function according to claim 1, wherein the GPON device is a GPON device with dual PON ports.

3. The GPON docking method with learning function as claimed in claim 1, wherein the method for determining whether private ME exists is: by combing the interactive messages, judging whether the interactive messages have private ME actions or not, and if the interactive messages have the private ME actions, determining that the interactive messages have the private ME actions; if there is no action of the private ME, it is no private ME.

4. The GPON docking method with learning function as claimed in claim 1, wherein the action of the private ME refers to the action of Create, Delete, Get, Set, and Mib upload.