CN104796797A - Method and device for background management of optical line terminal - Google Patents
Method and device for background management of optical line terminal Download PDFInfo
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Abstract
The invention is applicable to the technical field of access network, and provides a method for background management of an optical line terminal. The method comprises the following steps: registering an API of an optical line terminal OLT hardware platform; converting a call mode of the API supported by the OLT hardware platform into a preset call mode, wherein the function of the API remain unchanged after conversion; and calling the API in the preset call mode through an application to manage an optical network unit ONU connected with the OLT hardware platform. In the invention, for the application, the call modes of APIs with the same function between different hardware platforms are converted into the same preset call mode, and ONU management can be realized only by calling the APIs in the same preset call mode through the application.
Description
Technical field
The invention belongs to technical field of access networks, particularly relate to a kind of back-stage management method and device of optical line terminal.
Background technology
At ethernet passive optical network (Ethernet Passive Optical Network, EPON) in, equipment optical line terminal (the Optical Line Terminal of local side, OLT) with equipment optical network unit (the Optical Network Unit of user side, ONU) adopt passive fiber to be connected with optical passive components such as optical splitters between, OLT carries out parameter configuration, condition managing and range finding etc. to ONU.
The process of OLT control and management ONU is: order line control inerface (Command Line Interface, and Simple Network Management Protocol (Simple Network Management Protocol CLI), etc. SNMP) application program directly calls application programming interface (the ApplicationProgramming Interface of the hardware platform of OLT, API), configuration parameter or control command are sent to the hardware platform of OLT, are then sent to ONU by the hardware platform of OLT.The API of OLT hardware platform is by manufacturer's self-defining, and that is, for different manufacturers, the API realizing identical function can be different, do not have interoperability each other.As first station-service is called PLATO3_set_SLA in the api function of collocating uplink bandwidth, input parameter is 3, and output parameter is 1; And second station-service is called olt_dba_upstream_sla_cfg_set in the api function of collocating uplink bandwidth, input parameter is 4, and output parameter is 1.Thus, the research staff of the application programs such as exploitation CLI and SNMP needs to develop for different hardware platforms, and the workload that this results in developing application is large, consuming time, virtually adds development cost.
Summary of the invention
The object of the present invention is to provide a kind of back-stage management method of optical line terminal, being intended to solve in prior art when developing the application program of OLT control and management ONU needs the API for different hardware platforms to develop the problem causing workload large.
The present invention is achieved in that a kind of back-stage management method of optical line terminal, comprising:
The API of registration optical line terminal OLT hardware platform;
The method of calling of the described API of described OLT hardware platform support is converted to default method of calling, and after conversion, the function of described API remains unchanged;
API is called with described default method of calling, to manage the optical network unit ONU be connected with described OLT hardware platform by application program.
Another object of the present invention is to the background management device that a kind of optical line terminal is provided, comprising:
Registering unit, for registering the API of optical line terminal OLT hardware platform;
Converting unit, the method for calling for the described API by the support of described OLT hardware platform is converted to default method of calling, and after conversion, the function of described API remains unchanged;
Administrative unit, for calling API by application program with described default method of calling, to manage the optical network unit ONU be connected with described OLT hardware platform.
In the present invention, the API of OLT hardware platform is obtained by registration, the method of calling of this API of this OLT hardware platform support is converted to default method of calling, and function remains unchanged, API is called to manage with the method for calling preset the ONU be connected with this OLT hardware platform by application program, for application program, between different hardware platforms, the method for calling of the API of identical function all can be converted into identical default method of calling, and application program only need call the management that this API can realize ONU with identical default method of calling.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 2 is the specific implementation flow chart of step S102 in the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 3 is the specific implementation flow chart of step S103 in the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 4 is the specific implementation flow chart of step S103 in the back-stage management method of the optical line terminal that another embodiment of the present invention provides;
Fig. 5 is the specific implementation flow chart of step S103 in the back-stage management method of the optical line terminal that further embodiment of this invention provides;
Fig. 6 is the interface module schematic diagram added in the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 7 is the schematic diagram of physical layer interface layer in the interface module of the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 8 is the ONU state machine diagram of core processing layer in the interface module of the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Fig. 9 is the schematic diagram of application-interface layer in the interface module of the back-stage management method of the optical line terminal that the embodiment of the present invention provides;
Figure 10 is the structured flowchart of the background management device of the optical line terminal that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In embodiments of the present invention, the API of OLT hardware platform is obtained by registration, the method of calling of this API of this OLT hardware platform support is converted to default method of calling, and function remains unchanged, API is called to manage with the method for calling preset the ONU be connected with this OLT hardware platform by application program, for application program, between different hardware platforms, the method for calling of the API of identical function all can be converted into identical default method of calling, and application program only need call the management that this API can realize ONU with identical default method of calling.
Fig. 1 shows the realization flow of the back-stage management method of the optical line terminal that the embodiment of the present invention provides, and details are as follows:
In step S101, the API of registration optical line terminal OLT hardware platform.
Usually, the communication equipment in communication network, as OLT and ONU etc., comprise hardware platform and software systems, application program is arranged in software systems.API is that hardware platform leaves the calling interface of application program for by operating system, and application program performs various operational order by calling API to make hardware platform.Hardware platform reserves multiple API, the function that different API is corresponding different, as read status information and configuration parameter etc.
In embodiments of the present invention, API refers to that OLT hardware platform comprises several API by the producer's self-defining interface producing hardware platform, the function that each API is corresponding different.
When the startup of OLT hardware platform, initialization interface, API registers by bottom layer driving in software systems, log-on message comprises the feature index etc. of the function name of API, input/output argument and correspondence, with make OLT software systems have a clear understanding of hardware platform can the situation of API.
In step s 102, the method for calling of the described API of described OLT hardware platform support is converted to default method of calling, after conversion, the function of described API remains unchanged.
For the OLT hardware platform of different manufacturers, the API completing identical function supplies the form of application call to be probably not identical.In order to simplify the Develop Application System process calling these API, as one embodiment of the present of invention, as shown in Figure 2, S102 is specially:
In S201, obtain the mark of described OLT hardware platform.
In embodiments of the present invention, the mark of OLT hardware platform can be producer's title of this hardware platform of production or product type etc., as character strings such as PMC company and Cortina companies.When OLT hardware platform starts, bottom layer driving registers the mark of hardware platform in software systems, and software systems go out the hardware platform of cooperating with it by this mark identifiable design.
In S202, according to the identifier lookup of described OLT hardware platform to corresponding configuration file, described configuration file comprises the transformational relation method of calling of the described API of described OLT hardware platform support being converted to default method of calling.
In embodiments of the present invention, software systems store the configuration file preset in systems in which according to the identifier lookup of OLT hardware platform, configuration file comprises the transformational relation several API being converted to respectively default method of calling, the step of conversion only changes the form that API is employed routine call, and does not change the function of its correspondence.For different hardware platforms, the method for calling of the API of identical function, after conversion, has identical default method of calling.
The corresponding different configuration file of different OLT hardware platforms and different transformational relations.Transformational relation is determined after can running according to certain algorithm.As the OLT hardware platform for PMC company, by the input parameter normalization in certain API, according to the feature of this hardware platform, normalized transformational relation is that this input parameter is added 1; For the OLT hardware platform of Cortina company, also by the input parameter normalization of the API of identical function, according to the feature of this hardware platform, normalized transformational relation adds that another input parameter adds 1 again after certain input parameter is multiplied by 4.After such conversion, this input parameter just becomes upper level applications not to be needed to distinguish hardware platform and discernible input parameter
In S203, change the method for calling of described API according to described transformational relation.
In step s 103, call API by application program with described default method of calling, to manage the ONU be connected with described OLT hardware platform.
Through the conversion of above-mentioned steps, as one embodiment of the present of invention, call API by application program with the method for calling preset and manage ONU, as shown in Figure 3, S103 is specially:
In S301, call API by the first application program with described default method of calling, and produce mutual exclusion guard signal to stop the second application call simultaneously.
For same API, calling of multiple application program may be subject to, but synchronization can only allow an application call.In embodiments of the present invention, by this API of the first application call, produce mutual exclusion guard signal, mutual exclusion comprises signal can be called that again semaphore is protected, and can stop other application call, as the second application program simultaneously.
In S302, when described first application program discharges described API, remove described mutual exclusion guard signal.
When this API of the first application call is complete, the first application program discharges this API, and the guard signal of mutual exclusion simultaneously disappears, and now other application program can call this API.When other application calls the 2nd API, mutual exclusion guard signal can be produced equally to stop other application program.
From the functional perspective of API, described API is used for reporting ONU running state information or warning information, and as another embodiment of the present invention, as shown in Figure 4, S103 is specially:
In S401, the ONU running state information that reception API reports or warning information.
In embodiments of the present invention, ONU all needs by specific API to OLT back-to-back running state information when oneself state changes or after the control command change state receiving OLT, or by specific API feeder alert information when there are abnormal conditions in running, software systems are received by this API.
In S402, described running state information or warning information are stored in the first preset memory locations.
In embodiments of the present invention, first running state information or warning information are stored in the first preset memory locations, the state machine of ONU can be safeguarded while preserving running state information.
In S403, call API with described default method of calling, the described running state information in described first preset memory locations or warning information are reported to application program.
In embodiments of the present invention, call this API by application program with the method for calling after conversion, the running state information in the first preset memory locations or warning information are reported to application program.
From the functional perspective of api interface, described API is used for issuing configuration parameter to ONU, and as another embodiment of the present invention, as shown in Figure 5, S103 is specially:
In S501, call API with described default method of calling, receive the configuration parameter that application program issues.
In S502, described configuration parameter is stored in the second preset memory locations.
In embodiments of the present invention, application program calls API with the method for calling preset, and configuration parameter is stored in the second preset memory locations.
In S503, by API, the described configuration parameter in described second preset memory locations is issued to ONU.
The back-stage management method of the optical line terminal described by above embodiment by adding interface module to realize in software systems, API before conversion is called an API, API after conversion is called the 2nd API, the schematic diagram of interface module is concrete as shown in Figure 6, is divided into: physical layer interface layer, core processing layer and application-interface layer.Some API of hardware platform are articulated on physical layer interface layer; One API is converted to the 2nd API by core processing layer, and stores the state operation information of ONU, safeguards the state machine of ONU according to the running state information of ONU; Application-interface layer application program-oriented method provides the 2nd API.Separately be designed with debugging interface for developer's debugging and diagnosis.
As shown in Figure 7, multiple API that hardware platform is articulated to physical layer interface layer functionally divide the schematic diagram of physical layer interface layer, can be divided into state reporting interface, alarm report interface and administration configuration interface three major types.State reporting interface mainly receives the various running state information of the ONU that hardware platform sends, as obtained China Telecom's standard (China Tele Communication of ONU, CTC) interface of content, then puts into status message queue, waits for the process of core processing layer; Alarm report interface mainly receives the warning information of the ONU that hardware platform sends, and puts into alarm information queue, waits for the process of core processing layer; Administration configuration interface mainly receives OLT that application program issued by application-interface layer and core processing layer to the configuration parameter of ONU, as private operations management maintenance (the Operation Administration and Maintenance of the interface and ONU that configure the CTC content of ONU, OAM) interface etc., and configuration parameter is sent to ONU, realize the management to ONU.
Core processing layer stores the state operation information of ONU, and carries out the operation reading or configure ONU in good time, safeguards the state machine of ONU.The schematic diagram of ONU state machine as shown in Figure 8, when ONU position is idle, intercept the on-line message of ONU, if receive the on-line message of ONU from physical layer interface layer, the state transition of ONU is registered to ONU, ONU authentication is started in Preset Time, if authentication success, the state transition of ONU is to ONU allocated bandwidth, if failed authentication, the state transition of ONU is to ONU fault, state transition backward carries out according to similar principle, until ONU has registered, then in the running of ONU, carry out other parameter configuration or the report and alarm information of ONU, when receive from physical layer interface layer ONU roll off the production line message time, the state transition of ONU rolls off the production line to ONU.
The schematic diagram of application-interface layer as shown in Figure 9; application program-oriented method; as CLI and SNMP etc.; the second api interface that the state with presets obtains and configures is provided; then mutual exclusion guard signal to the second API Calls is provided in mutual exclusion protection, makes multiple application program can not call same 2nd API simultaneously.Corresponding with physical layer interface layer the one API, the privately owned OAM interface etc. of the interface that the 2nd API of application-interface layer also can be divided into ONU running state information to report, interface, the global configuration of ONU and the interface of port arrangement that warning information reports and ONU.
Debug when debugging interface gives over to exploitation and use.After debugging interface is enable, developer can pass through the information of each layer of debugging interface export interface module or the LOG file of terminal, sees abundant type information, thus makes developer's debugging interface module more easily.
The course of work of interface module: when OLT starts, first the global variable of initialization interface module and hardware interface, as informed the PON mouth quantity of interface module OLT, then the state reporting interface of initialization physical layer interface layer, alarm report interface and administration configuration interface, import the pointer of above-mentioned interface function into interface module, register in interface module by above-mentioned interface.When the state of ONU changes, accepting state reports the running state information of interface, then reports application program by the corresponding interface of application-interface layer, records this running state information and maintenance state machine by core processing layer simultaneously.When ONU is in certain state, administration configuration is carried out by the API of application call application-interface layer, after ONU read the CTC content of ONU, by the API of application call application-interface layer, at the API of physical layer interface layer correspondence, configuration parameter is issued to ONU by this API again, and is recorded and maintenance state machine by core processing layer simultaneously.If do not report CTC content in the time that ONU sets after registration, represent that this ONU does not support CTC, core processing layer can automatically produce warning information and report application program by application-interface layer, or issues default non-CTC configuration parameter and produce warning information and report application program by application-interface layer.
In embodiments of the present invention, the API of OLT hardware platform is obtained by registration, the method of calling of this API of this OLT hardware platform support is converted to default method of calling, and function remains unchanged, API is called to manage with the method for calling preset the ONU be connected with this OLT hardware platform by application program, for application program, between different hardware platforms, the method for calling of the API of identical function all can be converted into identical default method of calling, and application program only need call the management that this API can realize ONU with identical default method of calling.
Figure 10 shows the structured flowchart of the background management device of the optical line terminal that the embodiment of the present invention provides, and this device can be arranged in the software systems of OLT, for performing the back-stage management method of the optical line terminal that this Fig. 1 to Fig. 9 describes.For convenience of explanation, illustrate only part related to the present embodiment.
With reference to Figure 10, this device comprises:
Registering unit 1001, the API of registration OLT hardware platform.
Converting unit 1002, is converted to default method of calling by the method for calling of the API of OLT hardware platform support, and after conversion, the function of API remains unchanged.
Administrative unit 1003, calls API, to manage the ONU be connected with OLT hardware platform by application program with the method for calling preset.
Alternatively, converting unit 1002 comprises:
Obtain subelement, obtain the mark of OLT hardware platform.
Search subelement, according to the identifier lookup of OLT hardware platform to corresponding configuration file, configuration file comprises the transformational relation method of calling of the API of OLT hardware platform support being converted to default method of calling.
Conversion subelement, according to the method for calling of transformational relation conversion API.
Alternatively, administrative unit 1003 comprises:
Call subelement, call API by the first application program with the method for calling preset, and produce mutual exclusion guard signal to stop the second application call simultaneously.
Remove subelement, as the first application program release API, remove mutual exclusion guard signal.
Alternatively, for reporting ONU running state information or warning information, administrative unit 1003 comprises:
First receives subelement, the ONU running state information that reception API reports or warning information.
First storing sub-units, is stored in the first preset memory locations by running state information or warning information.
Report subelement, call API with the method for calling preset, the running state information in the first preset memory locations or warning information are reported to application program.
Alternatively, API is used for issuing configuration parameter to ONU, and administrative unit 1003 comprises:
Second receives subelement, calls API with the method for calling preset, and receives the configuration parameter that application program issues.
Second memory cell, is stored in the second preset memory locations by configuration parameter.
Issue subelement, by API, the configuration parameter in the second preset memory locations is issued to ONU.
In embodiments of the present invention, the API of OLT hardware platform is obtained by registration, the method of calling of this API of this OLT hardware platform support is converted to default method of calling, and function remains unchanged, API is called to manage with the method for calling preset the ONU be connected with this OLT hardware platform by application program, for application program, between different hardware platforms, the method for calling of the API of identical function all can be converted into identical default method of calling, and application program only need call the management that this API can realize ONU with identical default method of calling.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a back-stage management method for optical line terminal, is characterized in that, described method comprises:
The API of registration optical line terminal OLT hardware platform;
The method of calling of the described API of described OLT hardware platform support is converted to default method of calling, and after conversion, the function of described API remains unchanged;
API is called with described default method of calling, to manage the optical network unit ONU be connected with described OLT hardware platform by application program.
2. the method for claim 1, is characterized in that, the described method of calling by the described API of described OLT hardware platform support is converted to default method of calling and comprises:
Obtain the mark of described OLT hardware platform;
According to the identifier lookup of described OLT hardware platform to corresponding configuration file, described configuration file comprises the transformational relation method of calling of the described API of described OLT hardware platform support being converted to default method of calling;
The method of calling of described API is changed according to described transformational relation.
3. the method for claim 1, is characterized in that, describedly calls API by application program with described default method of calling, comprises to manage the ONU be connected with described OLT hardware platform:
Call API by the first application program with described default method of calling, and produce mutual exclusion guard signal to stop the second application call simultaneously;
When described first application program discharges described API, remove described mutual exclusion guard signal.
4. method as described in claim 1 or 2, it is characterized in that, described API is used for reporting ONU running state information or warning information, describedly calls API by application program with described default method of calling, comprises to manage the ONU be connected with described OLT hardware platform:
The ONU running state information that reception API reports or warning information;
Described running state information or warning information are stored in the first preset memory locations;
Call API with described default method of calling, the described running state information in described first preset memory locations or warning information are reported to application program.
5. as described in claim 1 or 2 method, it is characterized in that, described API is used for issuing configuration parameter to ONU, describedly calls API by application program with described default method of calling, comprises to manage the ONU be connected with described OLT hardware platform:
Call API with described default method of calling, receive the configuration parameter that application program issues;
Described configuration parameter is stored in the second preset memory locations;
By API, the described configuration parameter in described second preset memory locations is issued to ONU.
6. a background management device for optical line terminal, is characterized in that, described device comprises:
Registering unit, for registering the API of optical line terminal OLT hardware platform;
Converting unit, the method for calling for the described API by the support of described OLT hardware platform is converted to default method of calling, and after conversion, the function of described API remains unchanged;
Administrative unit, for calling API by application program with described default method of calling, to manage the optical network unit ONU be connected with described OLT hardware platform.
7. device as claimed in claim 6, it is characterized in that, described converting unit comprises:
Obtain subelement, for obtaining the mark of described OLT hardware platform;
Search subelement, for according to the identifier lookup of described OLT hardware platform to corresponding configuration file, described configuration file comprises the transformational relation method of calling of the described API of described OLT hardware platform support being converted to default method of calling;
Conversion subelement, for changing the method for calling of described API according to described transformational relation.
8. device as claimed in claim 6, it is characterized in that, described administrative unit comprises:
Calling subelement, for calling API by the first application program with described default method of calling, and producing mutual exclusion guard signal to stop the second application call simultaneously;
Remove subelement, for when described first application program discharges described API, remove described mutual exclusion guard signal.
9. the device as described in claim 6 or 7, is characterized in that, described API is used for reporting ONU running state information or warning information, and described administrative unit comprises:
First receives subelement, for receiving the ONU running state information or warning information that API reports;
First storing sub-units, for being stored in the first preset memory locations by described running state information or warning information;
Reporting subelement, for calling API with described default method of calling, the described running state information in described first preset memory locations or warning information being reported to application program.
10. the device as described in claim 6 or 7, is characterized in that, described API is used for issuing configuration parameter to ONU, and described administrative unit comprises:
Second receives subelement, for calling API with described default method of calling, receives the configuration parameter that application program issues;
Second memory cell, for being stored in the second preset memory locations by described configuration parameter;
Issue subelement, for the described configuration parameter in described second preset memory locations being issued to ONU by API.
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