CN103354508A

CN103354508A - OMCI managing method

Info

Publication number: CN103354508A
Application number: CN2013102850449A
Authority: CN
Inventors: 郝众望
Original assignee: Shanghai Feixun Data Communication Technology Co Ltd
Current assignee: Song Yixiao
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2013-10-16
Anticipated expiration: 2033-07-08
Also published as: CN103354508B

Abstract

The invention discloses an OMCI (ONT Management and Control interface) managing method and belongs to the technical field of GPON (Gigabit-Capable Passive Optical Network) interface management. The OMCI managing method specifically comprising that an OMCI is adopted for connecting an ONU (Optical Network Unit) device with an OLT (Optical Line Terminal) device and the OLT device sends an OMCI data message to the ONU device through the OMCI interface. The OMCI managing method includes a first step of analyzing the OMCI data message by the ONU device by adopting a predetermined first strategy; a second steps of creating a first interface model by the ONU device according to data obtained through analysis; and a third steps of converting the first interface model to a second interface model by the ONU device by adopting a predetermined second strategy. The OMCI managing method provided by the above technical scheme in the invention has beneficial effects that the ONU device can be compatible to OLT devices from different manufacturers by adopting a form of data stream for replacing a traditional method for processing data frames in an OMCI model, so that equipment cost and operation maintenance cost are reduced, and development difficulty is reduced and research and development efficiency is improved at the same time.

Description

A kind of OMCI management method

Technical field

The present invention relates to a kind of GPON interface management technical field, relate in particular to a kind of OMCI management method.

Background technology

GPON(Gigabit-Capable Passive Optical Network, gigabit passive optical network) the latest generation broadband passive light that is based on the ITU-TG.984.x standard comprehensively accesses standard, has high bandwidth, high efficiency, large coverage, the abundant many merits that waits of user interface is considered as realizing that by most of operators the Access Network business is broadband, the desirable technique that synthesization is transformed.The GPON technique functions comes from the ATM PON(Asynchronous Transfer Mode passive optical network that nineteen ninety-five begins to form gradually, based on the EPON of Asynchronous transfer mode technology) technical standard.The GPON technology is the earliest by FSAN(Full Service Access Networks, FSAN forum) is organized in September, 2002 proposition, ITU-T(International Telecommunication Union-Telecommunication, International Telecommunications Union's telecommunication standards tissue) finished ITU-T G.984.1 and formulation G.284.2 in March, 2003 on this basis, and with finished standardization G.284.3 in February, 2004.Thereby finally formed the standard family of GPON.

Basic structure and existing PON based on the equipment of GPON technology are similar, also be the OLT(optical line terminal by local side, optical line terminal), the ONT equipment of user side (Optical network terminal, Optical Network Terminal)/ONU equipment (Optical Network Unit, optical node), by the monomode fiber (SM fiber) that connects front two kinds of equipment and the ODN(Optical Distribution Network that passive optical splitters (Splitter) forms, Optical Distribution Network) and the optical network system of gateway system composition.Wherein, OLT equipment can pass through OMCI(ONT Management and Control Interface, ONT management and control interface) control ONU equipment.Business configuration is resolved and analyzed to ONU equipment to the OMCI message of receiving, issues subsequently configuration.

But in the prior art, because the up-to-date OMCI standard of each OLT manufacturer to G.988(defining at present) understanding difference or the difference of implementation cause ONU equipment when the OLT that docking different vendor produces, and the problem of interconnection and interflow property can occur.The method of generally using now is that the OLT equipment for different manufacturers uses different OMCI business diagnosis logic (namely adopting different firmwares for different OLT) on ONU.The shortcoming of doing like this has been to increase the cost of equipment and the cost of operation maintenance.

Chinese patent (CN101764647A) discloses a kind of ONU management console of GPON network management system, comprises OMCI protocol module, MIB administration module and ONU alarm module, and the ONU alarm module comprises alarm kind and alarm process; In the OMCI protocol module, management is defined in the OMCI channel on the GTC layer among the FPGA, and the management control interface of OLT management ONU is provided for the GPON Element management system; The OMCI parsing module comprises the decoding unit of the OMCI frame in the downstream; OMCI framing module comprises the coding unit of the OMCI frame in the upstream; The ONU agency passes through at OMCI channel transfer OMCI frame; Data searching unit is searched for attribute, physical data and the warning information of managed entity in management information bank; Data access unit in management information bank, extract and the storage management information bank in information.Technique scheme focuses on the concrete way to manage of describing OMCI, does not relate to the connection corrective action that OMCI is played for different OLT and ONU.

Chinese patent (CN101361399) discloses a kind of Optical Network Termination Management and Control Interface, comprise memory, this memory comprises data structure, this data structure comprises Optical Network Termination Management and Control Interface (OMCI), this OMCI comprises a plurality of managed entities (ME), and one of wherein said ME is the description of this OMCI.A kind of network components comprises processor, and this processor is configured to carry out and comprises following method: initiate to send OMCI to optical line terminal (OLT) and describe, wherein OMCI describes and comprises: OMCI object, the example have been described the type of the ME that OMCI supports; A plurality of managed entity objects, the example have been described each MB that OMCI supports; And a plurality of attributes object, the example has been described each attribute that OMCI supports.Technique scheme only discloses the basic framework of OMCI, and the corresponding content of adjusting OLT and ONU connected mode among the unexposed OMCI.

Summary of the invention

According to the defective that exists in the prior art, a kind of technical scheme of OMCI management method now is provided, specifically comprise:

A kind of OMCI management method wherein, adopts the OMCI interface to connect ONU equipment and OLT equipment; Described OLT equipment issues the OMCI data message by described OMCI interface to described ONU equipment;

Described OMCI management method comprises:

Step 1, described ONU equipment adopts the described OMCI data message of the first policy resolution that presets;

Step 2, first interface model of data creation that described ONU equipment obtains according to parsing;

Step 3, described ONU equipment take the second strategy of presetting with described first interface model conversion as second interface model.

Preferably, this OMCI management method wherein, comprises having different a plurality of configuration parameters that are subjected to tube module that are used for configuring in the described OMCI data message; Each described tube module that is subjected to is used to carry out one or more functions that described OLT equipment issues;

Also comprise in the described OMCI data message be used to identifying a plurality of described a plurality of module sequence numbers that are subjected to tube module;

In the described step 1, described the first strategy that presets comprises:

Step 11, all described tube modules that is subjected in the corresponding described OMCI data message of described ONU equipment all send the successful feedback signal of identification to described OLT equipment;

Step 12, when described ONU equipment judged that described module sequence number is not the module sequence number of described ONU equipment acquiescence, then described ONU equipment adopted the described module sequence number of the first disposal methods that presets.

Preferably, this OMCI management method, wherein, in the described step 12, described the first processing method that presets comprises:

Step 121, described ONU equipment judge whether described module sequence number needs to change;

Step 122, if described module sequence number need to be changed, then described ONU equipment converts described module sequence number to the corresponding standard module sequence number that presets.

Preferably, this OMCI management method, wherein,

Include in the described OMCI data message and point to each described sensing parameter that is subjected to the placement location of tube module;

In the described step 2, when described ONU equipment created described first interface model, there was not the described tube module that is subjected in corresponding described placement location if described ONU equipment is judged described sensing parameter, and then described ONU equipment is processed with the second processing method that presets.

Preferably, this OMCI management method, wherein, described the second processing method that presets comprises:

Step 21, described ONU equipment judge whether described sensing parameter described placement location pointed exists the described tube module that is subjected to;

Step 22, if there is not the described tube module that is subjected on the described placement location, then described ONU equipment creates the described tube module that is subjected at described placement location as required, and correspondingly sets up the described configuration parameter that is subjected to tube module.

Preferably, this OMCI management method, wherein, in the described step 2, described first interface model comprises:

A plurality of bridge end; Each described bridge end connects at least one GEM port by at least one ITP; Described bridge end is used for bridged ethernet; Described ITP is for the GEM encapsulation of data frame frame that the ethernet data frame corresponding conversion is become can transmit at the described GEM port of correspondence; Described GEM port is used for transmission through the described GEM encapsulation of data frame of GEM encapsulation;

The GEM encapsulation of data frame that each described GEM port transmits is formed one with the formation of priority orders; Described GEM port is dispatched described GEM encapsulation of data frame according to described priority orders;

Through after the scheduling of described GEM port, described GEM encapsulation of data frame is admitted in a plurality of time-sequence control modules according to described priority orders; Each described time-sequence control module carries out sequencing control according to the priority orders of described GEM encapsulation of data frame to a plurality of described GEM encapsulation of data frames; A plurality of described time-sequence control modules all are connected to described OLT equipment by a GPON port.

Preferably, this OMCI management method, wherein, in the described first interface model:

By the ethernet data frame of described bridge end, corresponding to a plurality of different described priority orders among the 1p, and be transmitted into by corresponding ITP in the described GEM port of correspondence.

Preferably, this OMCI management method, wherein, in the described step 3, described the second strategy that presets comprises:

Step 31, described ONU equipment reads the described configuration parameter of described processing module from the data that parsing obtains;

Step 32, described ONU equipment also comprises a modular converter; Described modular converter is according to the described described configuration parameter that is subjected to tube module of realizing IEEE802.1p function and ITP function, and the ethernet data frame that described bridge end is exported is converted to corresponding data flow, to form described the second interface model.

Preferably, this OMCI management method, wherein, described the second interface model comprises:

Described bridge end is sent to described modular converter with described ethernet data frame; Described modular converter converts the described ethernet data frame of described bridge end output to a corresponding data flow; Described modular converter is specified the outlet of the described GEM port of one or more correspondences according to described data flow.

A plurality of Frames by different described outlet outputs are corresponding to a plurality of different described priority orders among the 1p.

Preferably, this OMCI management method, wherein, described modular converter is specified the outlet that is no more than 8 described GEM ports of correspondence; The quantity of corresponding described GEM port is no more than 8.

The beneficial effect of technique scheme is: the traditional OMCI interface model of formal argument that adopts general " data flow ", so that ONU equipment can be compatible the OLT equipment produced of different vendor, reduced the cost of equipment cost and operation maintenance, reduce simultaneously development difficulty, improved efficiency of research and development.

Description of drawings

Fig. 1-2 is in the embodiments of the invention, a kind of schematic flow sheet of OMCI management method;

Fig. 3 is in the embodiments of the invention, the structural representation of traditional OMCI interface model (being the first interface model);

Fig. 4 is in the embodiments of the invention, the structural representation of the second interface model of process conversion.

Embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.

In traditional GPON network, OLT equipment issues parameter configuration with the operating state of control ONU equipment by the OMCI interface, comprising ONU equipment open the parameter configuration etc. of miscellaneous service.

As shown in Figure 1, in the embodiments of the invention, a kind of OMCI management method specifically comprises:

Step 1, OLT equipment issues the OMCI data message by the OMCI interface to ONU equipment;

Step 2, ONU equipment receive and resolve the OMCI data message that issues;

Step 3, first interface model of data construct that ONU equipment obtains according to parsing; This first interface model is the universal model of OMCI interface in the prior art;

Step 4, ONU equipment be according to this first interface model, and resolve the various configuration parameters that obtain, and the first interface model conversion is become the second interface model.

As shown in Figure 2, in the embodiments of the invention, the step of the OMCI data message that the ONU device parses issues comprises:

Step 21, ONU equipment is subjected to tube module to all that are included in the OMCI data message, all replys the feedback signal of OLT recognition of devices success;

Step 22, ONU equipment are judged the standard module sequence number whether the module sequence number be included in the OMCI data message is given tacit consent in the ONU equipment;

Step 23, if above-mentioned module sequence number is the module sequence number of giving tacit consent in the ONU equipment, then ONU equipment is converted to this module sequence number the corresponding standard module sequence number that presets in the ONU equipment; So that system can identify;

Step 24, ONU equipment judge whether the sensing parameter placement location pointed that is included in the OMCI data message exists the due tube module that is subjected to;

Step 25, if there is not the due tube module that is subjected to, then ONU equipment creates voluntarily one at above-mentioned placement location place and is subjected to tube module as required, and creates simultaneously the relevant configured parameter that this is subjected to tube module.

In the above-mentioned steps:

Be subjected to tube module namely to represent management entity (Managed Entity) in the GPON network.Management entity is in the GPON network, the entity that can carry out one or more functions that OLT equipment issues (such as operation function, management function, maintenance and prophylactic function etc. are provided);

The module sequence number is instance number (Entity ID), is used for management entity of sign.

The sensing parameter is the pointer parameter in the data message; Pointer parameter placement location pointed is the memory location of above-mentioned management entity.If there is not corresponding management entity in pointer parameter memory location pointed, represent that namely this pointer parameter is illegal.But because in the embodiments of the invention, ONU equipment need to be set up the first interface model according to management entity, therefore, when ONU equipment judges that the due management entity in memory location that this pointer parameter points to is when setting up the essential management entity of first interface model, ONU equipment can create a corresponding management entity voluntarily on this memory location, and creates simultaneously the corresponding configuration parameter of this management entity.

Through after the above-mentioned resolving, ONU equipment obtains resolution data, and can according to the management entity that comprises in this resolution data with and configuration parameter make up a first interface model:

This first interface model is the interface model that generally adopts in the ONU equipment, this first interface model as shown in Figure 3:

A plurality of bridge end 1(Bridge Port) be used for bridged ethernet (not shown) and ONU equipment;

Ethernet data frame by bridge end 1 enters (employing IEEE802.1p agreement is in the accompanying drawings with mark 2 expressions) among a plurality of 1p; 1p with above-mentioned ethernet data frame with in the embodiments of the invention; In the embodiments of the invention, 1p is treated to ethernet data frame the Frame of one or more priority orders with presetting; The agreement that 1p adopts is IEEE802.1P(LAN Layer2QoS/CoS Protocol for Traffic Prioritization, relevant traffic prioritization LAN second layer QoS/CoS agreement); One or more Frames with priority orders of exporting from 1p are admitted to corresponding one or more GEM end (GEM Port) 3 through corresponding one or more intercommunication end point (Interworking Termination Point, ITP) 21.In the embodiments of the invention, (when only having a Frame) can not dispense 1p when Frame does not have the priority that presets, and ethernet data frame directly is admitted in the corresponding GEM end 3 by intercommunication end point 21.

After a plurality of GEM ends 3 receive above-mentioned Frame with priority orders, at first Frame is encapsulated with GEM packaged type (GPON Encapsulation Mode), to form corresponding GEM encapsulation of data frame, subsequently, GEM end 3 is dispatched GEM encapsulation of data frame according to different priority orders, to form a plurality of different 4(Priority Queue of priority query); The GEM end is put into corresponding priority query 4 with GEM encapsulation of data frame.

The a plurality of GEM encapsulation of data frames that are in different priority query 4 are sent in the different time-sequence control module 5 by corresponding.In the embodiments of the invention, time-sequence control module 5 is transmission container (Transmission Container, TCON), because the characteristic of GPON network, the transmission that needs the different pieces of information frame is synchronous, therefore for different Frames, need to give its different transmission delay, to guarantee synchronous transmission; The effect of TCON namely is to distribute by the upstream bandwidth of managing GPON system transmissions convergence-level (Transmission Convergence Layer, TC layer), realizes the sequencing control function for transmitting data frame among the OMCI.

A plurality of time-sequence control modules 5 are all by a GPON port 6(GPON Port) be connected to OLT equipment (not shown).

Above-mentioned interface model is general interface model, but the ONU equipment for particular vendor production, can't realize fully corresponding to agreement IEEE802.1p, and the universal model of the management entity of the function such as ITP, the OLT equipment that therefore causes ONU equipment can't good compatible different vendor to be produced.For this defective, provided the second interface model through conversion as shown in Figure 4 in the embodiments of the invention:

Corresponding difference between the second interface model and the first interface model is mainly concerned with the part that adopts 1p and ITP to come process frames of data.In the second interface model, the ethernet data frame that sends by bridge end 1 is converted into a data flow through a modular converter 7; Modular converter 7 is specified the data outlet of one or more different corresponding GEM ports subsequently.In the embodiments of the invention, different data outlets is corresponding to the different priority orders of 1p in the first interface model; Interface model subsequently namely with embodiments of the invention in the first interface model class seemingly.

The above-mentioned conversion of doing in the embodiments of the invention namely is the mode that the part unification of the 1p in the first interface model and ITP process frames of data is converted to transform data stream (FLOW).In the embodiments of the invention, modular converter 7 is supported 8 different data outlets at the most, be handled 8 the different priority orders of 1p in the corresponding first interface model, therefore, the modular converter 7 in the embodiments of the invention also can only be supported 8 GEM ends 3. at the most

Owing to only having used the management entity of realizing 1p function and ITP function in the above-mentioned conversion, therefore, only need to know the concrete configuration parameter of above-mentioned two kinds of management entities, just can be by calculating in the embodiments of the invention transformation model about data flow (FLOW).And above-mentioned configuration parameter can be resolved from OMCI data message before and obtained.

In the embodiments of the invention, in data flow (FLOW), need to indicate the direction of Business Stream.For example, for general unicast stream, be two-way getting final product with the Business Stream direction setting; And for multicast data flow, need to be down direction with the Business Stream direction setting.

In the embodiments of the invention, the actual conditions that the data based chip of TCON on GPON port 6 can be supported determine, and report OLT equipment.In TCON, need to configure corresponding alloc_id(Allocation Identifier, distribution marker) and scheduling method.

GEM end 3 in the embodiments of the invention can adopt the Gem CTP management entity of standard to create and configure.

The above only is preferred embodiment of the present invention; be not so restriction embodiments of the present invention and protection range; to those skilled in the art; should recognize that being equal to that all utilizations specification of the present invention and diagramatic content done replace and the resulting scheme of apparent variation, all should be included in protection scope of the present invention.

Claims

1. an OMCI management method is characterized in that, adopts the OMCI interface to connect ONU equipment and OLT equipment; Described OLT equipment issues the OMCI data message by described OMCI interface to described ONU equipment;

Described OMCI management method comprises:

2. OMCI management method as claimed in claim 1 is characterized in that, comprises in the described OMCI data message having different a plurality of configuration parameters that are subjected to tube module that are used for configuring; Each described tube module that is subjected to is used to carry out one or more functions that described OLT equipment issues;

In the described step 1, described the first strategy that presets comprises:

3. OMCI management method as claimed in claim 2 is characterized in that, in the described step 12, described the first processing method that presets comprises:

4. OMCI management method as claimed in claim 1 is characterized in that,

5. OMCI management method as claimed in claim 4 is characterized in that, described the second processing method that presets comprises:

6. OMCI management method as claimed in claim 1 is characterized in that, in the described step 2, described first interface model comprises:

7. OMCI management method as claimed in claim 6 is characterized in that, in the described first interface model:

8. OMCI management method as claimed in claim 7 is characterized in that, in the described step 3, described the second strategy that presets comprises:

9. OMCI management method as claimed in claim 8 is characterized in that, described the second interface model comprises:

10. OMCI management method as claimed in claim 9 is characterized in that, described modular converter is specified the outlet that is no more than 8 described GEM ports of correspondence; The quantity of corresponding described GEM port is no more than 8.