CN101043275B - System and method for managing optical network unit or optical network terminal - Google Patents
System and method for managing optical network unit or optical network terminal Download PDFInfo
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Abstract
The invention provides a system and method of managing light network unit or light network terminal, it relates to fields of network communication and used to resolve problems that when multiple users are connected with ONT/ONU, the management mode of ONT/ONU is complex, the load of OLT is too big. The system includes EMS, OLT and ONT/ONU, said ONT/ONU is used to parse management data which is sent to ONT/ONU by EMS, package the management data of ONT/ONU then send to EMS. By said technique scheme provided in the invention, the invention supports management protocol at ONT/ONU, distributes the IP address of ONT/ONU, realizes the direct connection of EMS and ONT/ONU at management protocol, so the load of OLT is decreased, the problem that the ONT/ONU can not be a unattached net element to manage.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to the system and method for a kind of managing network unit or ONT Optical Network Terminal.
Background technology
Present broadband access technology is mainly divided into copper wire access technology (for example various DSL technology) and light access technology, through various access technologies, the user is linked on the broadband network.Adopt the local side apparatus of light access technology to be called OLT, the terminal is provided with and is called ONT/ONU (ONT Optical Network Terminal/optical network unit), different according to optical fiber in-position and ONT/ONU deployed position, and the physics reference configuration of employing light access technology is as shown in Figure 1:
To be OLT through optical fiber be connected to the application scenarios of FTTH (Fiber to the home for Fiber to the Home) is deployed in the inner ONT/ONU of domestic consumer, is called that Fiber to the home.
The application scenarios of FTTB (Fiber To The Building for Fiber to the Building)/FTTC (Fiber To The Curb for Fiber to the Curb) is that OLT is connected to the ONT/ONU that is deployed in the inner ONT/ONU in building or is deployed in the roadside through optical fiber; Be called that Fiber To The Building or Fiber To The Curb, from ONT/ONU to subscriber household equipment through copper cash or other modes for example wireless technology connect.
The application scenarios of FTTCab (Fiber to the Cabinet optical fiber is to commuting case) is that OLT is connected to the ONT/ONU that is deployed in cross-connecting box through optical fiber; Be called Fiber To The Cabinet, from ONT/ONU to subscriber household equipment through copper cash or other modes for example wireless technology connect.
The PON access technology is a kind of of FTTH access technology, and the PON technology is a kind of light access technology of transmission of point-to-multipoint.Typical PON connecting system is made up of OLT, ODN, ONT/ONU.
The PON system is made up of OLT, ODN, ONT/ONU, and is as shown in Figure 2:
OLT (Optical Line Terminal) optical line terminal:, connect one or more ODN for OAN provides network side interface (SNI);
ODN (Optical Distribute Network) light distributed network: the passive optical splitters part, the ODN data that OLT is descending are transferred to each ONT/ONU along separate routes through light, and are same, and ODN arrives OLT with the upstream data of ONT/ONU through aggregate transmission.
ONT/ONU (Optical Network Unit) optical network unit: uply link to each other with ODN, the descending user of providing inserts the various interface of PON network.
General PON access technology, the downlink traffic of OLT is broadcast to ONT/ONU through the mode of TDM (time division multiplexing), and each ONT/ONU receives the flow that needs as required; The uplink traffic of ONT/ONU is through the control of OLT, and the same moment only allows specific ONT/ONU transmission data, and the mode through TDMA (time division multiple access) is transferred to ONT/ONU.
Different according to ONT/ONU deployed position and application scenarios, ITU-T GPON CTS document definition six kinds of ONT/ONU.
SFU (Single Family Unit) ONT/ONU only inserts single domestic consumer
HGU (Home Gateway Unit) only inserts single domestic consumer, simultaneously integrated user gateway
SBU (Single Business Unit) ONT/ONU only inserts single business user
MDU (Multi-Dwelling Unit) ONT/ONU inserts a plurality of users
MTU (Multi-Tenant Unit) ONT/ONU inserts a plurality of business users
CBU (Cellular Backhaul Unit) ONT/ONU is as base station data transmission usefulness
For the management of ONT/ONU, two kinds of implementation methods are arranged in the present PON technology:
Method one: OLT is through OMCI consultative management ONT/ONU.OMCI (ONU Managementand Control Interface) is a kind of configuration transmission channel that defines in the GPON standard, and the OMCI passage is based upon between OLT and the ONT/ONU, and ONT/ONU is at the OMCI passage of when OLT registers, setting up between ONT/ONU and the OLT.OMCI is the master-slave mode management agreement, and OLT is a main equipment, and ONT/ONU is a slave unit, a plurality of ONT/ONU equipment that OLT connects below OMCI passage control OLT.
Way to manage such as Fig. 3, all configuration informations through EMS (Element management system)-＞mode of OLT-＞ONT/ONU realizes.
Method two: ONT/ONU manages through the mode of TR069.In network, dispose ACS (AutoConfiguration Server) server, set up management between ACS and the ONT/ONU and connect, manage ONT/ONU through the mode of TRO69 agreement regulation.ACS is transparent to the management connection of ONT/ONU to OLT under this mode.
The shortcoming of prior art
The way to manage of method one is ONT/ONU to be regarded as the auxiliary device of OLT, and all management datas all are issued to ONT/ONU through OLT.This mode is feasible for example SFU for the ONT/ONU of easy configuration, but for the ONT/ONU of complicacy MDU for example, way to manage is complicated; The user who inserts is many; Through OMCI consultative management ONT/ONU, the management data that OLT issues is a lot, causes the OLT burden very big.Simultaneously on the network management topology, can't embody ONT/ONU, be unfavorable for that operator manages whole network.
Method two, ACS is transparent to the management connection of ONT/ONU to OLT, this mode relatively is fit to management and the top same reason of HGU, and is inapplicable equally to the ONT/ONU that inserts the multi-user.
Summary of the invention
The object of the invention is to provide the system and method for a kind of managing network unit or ONT Optical Network Terminal, and when inserting a plurality of user to solve, the way to manage of ONT or ONU is complicated, the problem that the OLT burden is excessive.
For addressing the above problem, the present invention proposes the system of a kind of managing network unit or ONT Optical Network Terminal, comprise Element management system EMS, optical line terminal OLT and ONT Optical Network Terminal or optical network unit ONT/ONU, it is characterized in that,
Said EMS is used for the management information of the link layer of ONT or ONU is handed down to ONT or ONU through OLT; For other configuration information, then directly be handed down to ONT or ONU;
Said ONU or ONT; Dispose the management ip address of ONT or ONU; And self be provided with the management protocol stack processing module, be used for behind the administrative message that the said EMS of reception issues, judging whether the destination address of the administrative message of receiving is this machine management ip address; If then resolve the content in the administrative message; Content according to said administrative message is operated accordingly, and said operation comprises: ONU or ONT and inquiry ONU or ONT information are set; And echo reply message is given said EMS.
Wherein, Said ONT or ONU comprise the management agreement processing module; Wherein the management agreement processing module links to each other with Service Processing Module with the GPON agreement, sends to EMS after being used to resolve management data and the management data encapsulation with ONT or ONU that EMS is handed down to ONT or ONU.
Wherein, pass through snmp protocol or XML protocol communication between said EMS and ONT or the ONU.
In addition, the invention allows for the method for a kind of managing network unit or ONT Optical Network Terminal, comprise the steps: to dispose the management ip address of ONT or ONU, EMS manages ONT or ONU as independent network element.
Wherein, management specifically refers to said EMS as independent network element ONT or ONU, issues configuration information to ONT or ONU for the management information of the link layer of ONT or ONU by OLT, for other configuration information, then is handed down to ONT or ONU through EMS.
Wherein, said EMS manages said ONT or ONU through agreement, in said management process, increases the management protocol stack processing module among said ONT or the ONU newly, and concrete management process is following:
Step S20, ONT or ONU judge whether the destination address of the administrative message of receiving is this machine management ip address; If execution in step S21 then, otherwise finish;
Content in step S21, the parsing administrative message;
Step S22, operate accordingly according to the content of the administrative message among the step S21, said operation comprises: ONU or ONT and inquiry ONU or ONT information are set.
Step S23, echo reply message.
Said method specifically may further comprise the steps:
Steps A, EMS configuration ONT or ONU;
Step B1, EMS send the request of reading ONT or ONU data and give ONT or ONU; After step B2, ONT or ONU receive the request of step B1, return the data of ONT or ONU and give EMS.Wherein, steps A specifically may further comprise the steps:
Steps A 1, EMS send the data that ONT or ONU are set and give ONT or ONU;
Steps A 2, ONT or ONU be according to data configuration ONT or ONU in the steps A 1, and return response is set.
Wherein, pass through snmp protocol or XML protocol communication between said EMS and ONT or the ONU.
In the existing way to manage, regard ONT/ONU the auxiliary device of OLT as, for the ONT/ONU (like MDU) of complicacy, during through OMCI consultative management ONT/ONU, the management data that OLT need issue can be a lot, thereby cause the OLT burden excessive.The present invention is through supporting management protocol stack on ONT/ONU; And the management ip address of configuration ONT/ONU; Realize being connected of EMS and the direct management information of ONT/ONU on management agreement; Thereby reduced the burden of OLT, also having solved ONT/ONU can't manage as a stand-alone network elements, is convenient to the network management of operator.
Description of drawings
Fig. 1 is the structural representation of available technology adopting light access technology;
Fig. 2 is the structural representation of PON system in the prior art;
Fig. 3 is the structural representation that OLT passes through OMCI consultative management ONT/ONU in the prior art;
Fig. 4 is a system configuration sketch map of the present invention;
Fig. 5 is an ONT/ONU structural representation in the system of the present invention;
Fig. 6 is the flow chart of EMS among the present invention through snmp protocol management ONT/ONU;
Fig. 7 manages in the process of ONT/ONU the process chart of the management protocol stack processing module that ONT/ONU increases newly for EMS among the present invention through snmp protocol.
Embodiment
The method of managing network unit of the present invention or ONT Optical Network Terminal is through on the basis of the existing defective of labor prior art, proposing; In the existing way to manage, regard ONT/ONU the auxiliary device of OLT as, all management datas all are issued to ONT/ONU through OLT; This mode is for the ONT/ONU (like MDU) of complicacy; During through OMCI consultative management ONT/ONU, the management data that OLT need issue can be a lot, thereby cause the OLT burden excessive.Therefore; The present invention is through supporting independently management protocol stack (like snmp stack or other management protocol stack) on ONT/ONU; And the management ip address of configuration ONT/ONU is realized being connected of EMS and the direct management information of ONT/ONU on management agreement, thereby has reduced the burden of OLT.
With reference to figure 4, system configuration of the present invention comprises: Element management system (EMS), optical line terminal (OLT); ONT Optical Network Terminal/optical network unit (ONT/ONU) three parts are formed; Wherein, EMS and OLT are the entities that the PON connecting system has existed, and issue configuration management information through EMS and give OLT; Reach the purpose of management OLT and ONT/ONU; ONT/ONU then is the new management agreement processing module that adds in existing ONT/ONU, is illustrated in figure 5 as ONT/ONU structural representation in the system of the present invention, and wherein the management agreement processing module links to each other with Service Processing Module with the GPON agreement; Be responsible for from management protocol stack, parsing the management data that EMS is handed down to ONT/ONU, simultaneously the management data of ONT/ONU be encapsulated into management protocol stack and send to EMS; The GPON agreement links to each other with Subscriber Interface Module SIM with management agreement processing module, upstream Interface module respectively with Service Processing Module; Be used for GPON agreement and professional processing; The upstream Interface module links to each other with up PON interface with Service Processing Module with the GPON agreement respectively, is used to realize the interface function with OLT; Subscriber Interface Module SIM links to each other with user interface with Service Processing Module with the GPON agreement respectively, is used to provide the interface function of user side.It may be noted that; Fig. 5 is the structural representation of the present invention ONT/ONU when specifically being applied to the GPON system, and the present invention is equally applicable to other PON system, like EPON etc.; The structural representation of its ONT/ONU is identical with Fig. 5, only is wherein GPON agreement and the corresponding variation of Service Processing Module generation.
In system of the present invention, the NMI interface between EMS and the ONT/ONU is present commonplace snmp protocol or other agreement (like the XML agreement), it seems that from EMS ONT/ONU manages as independent network element.For the configuration of ONU link layer, because relate to the mutual of ONU and OLT, the management information of link layer must be visible to OLT, still issues configuration information through the OMCI agreement by OLT and gives ONU.Do not need visible configuration information for OLT, then issue configuration information and give ONU through EMS.
Therefore; The core concept of managing network unit of the present invention or ONT Optical Network Terminal method is: the present invention is through supporting independently management protocol stack (like snmp stack or other management protocol stack) on ONT/ONU; And the management ip address of configuration ONT/ONU; EMS manages ONT/ONU as independent network element; Issue configuration information through the OMCI agreement by OLT for the management information of the link layer of ONT/ONU and give ONT/ONU, do not need visible configuration information, then issue configuration information and give ONT/ONU through EMS for other OLT.
Below in conjunction with each accompanying drawing, the practical implementation process of the method for the managing network unit of the present invention that can realize These characteristics or ONT Optical Network Terminal is carried out detailed elaboration.
As shown in Figure 6, EMS specifically may further comprise the steps through the flow process of snmp protocol management ONT/ONU:
Step S100, EMS dispose ONT/ONU;
Say that more specifically step S100 specifically comprises following two steps:
Step S101, EMS send the data that ONT/ONU is set and give ONT/ONU;
Step S102, ONT/ONU be according to the data configuration ONT/ONU among the step S101, and return response is set.
Step S110, EMS read the ONT/ONU operation;
Say that more specifically step S110 specifically comprises following two steps:
Step S111, EMS send the request of reading the ONT/ONU data and give ONT/ONU;
After step S112, ONT/ONU receive the request of step S111, return the data of ONT/ONU and give EMS.
In the process of above-mentioned EMS through snmp protocol management ONT/ONU, the handling process of the management protocol stack processing module that ONT/ONU increases newly is as shown in Figure 7: specifically may further comprise the steps:
Step S200, ONT/ONU judge whether the destination address of the administrative message of receiving is this machine management ip address; If execution in step S201 then, otherwise finish;
Content in step S201, the parsing administrative message;
Step S202, according to the content operation of the administrative message among the step S201 (ONU for example being set, inquiry ONU information);
Step S203, echo reply message.
In ONU, newly add the management agreement processing module, be responsible for from management protocol stack, parsing the management data that EMS is handed down to ONU, simultaneously the management data of ONU is encapsulated into management protocol stack and sends to EMS.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. the system of managing network unit or ONT Optical Network Terminal comprises Element management system EMS, optical line terminal OLT and ONT Optical Network Terminal or optical network unit ONT or ONU, it is characterized in that,
Said EMS is used for the management information of the link layer of ONT or ONU is handed down to ONT or ONU through OLT; For other configuration information, then directly be handed down to ONT or ONU;
Said ONT or ONU; Dispose the management ip address of ONT or ONU; And self be provided with the management protocol stack processing module, be used for behind the administrative message that the said EMS of reception issues, judging whether the destination address of the administrative message of receiving is this machine management ip address; If then resolve the content in the administrative message; Content according to said administrative message is operated accordingly, and said operation comprises: ONU or ONT and inquiry ONU or ONT information are set; And echo reply message is given said EMS.
2. the system of claim 1; It is characterized in that; ONT or ONU comprise the management agreement processing module; Wherein the management agreement processing module links to each other with Service Processing Module with agreement, sends to EMS after being used to resolve management data and the management data encapsulation with ONT or ONU that EMS is handed down to ONT or ONU.
3. according to claim 1 or claim 2 system is characterized in that, between EMS and ONT or EMS and the ONU through snmp protocol or XML protocol communication.
4. the method for managing network unit or ONT Optical Network Terminal is characterized in that comprise the steps: to dispose the management ip address of ONT or ONU, EMS manages ONT or ONU as independent network element;
Management specifically refers to said EMS as independent network element ONT or ONU, issues configuration information to ONT or ONU for the management information of the link layer of ONT or ONU by OLT, for other configuration information, then is handed down to ONT or ONU through EMS; Wherein, said EMS manages said ONT or ONU through agreement, in said management process, increases the management protocol stack processing module among said ONT or the ONU newly, and concrete management process is following:
Step S20, ONT or ONU judge whether the destination address of the administrative message of receiving is this machine management ip address; If execution in step S21 then, otherwise finish;
Content in step S21, the parsing administrative message;
Step S22, operate accordingly according to the content of the administrative message among the step S21, said operation comprises: ONU or ONT and inquiry ONU or ONT information are set;
Step S23, echo reply message.
5. method as claimed in claim 4 is characterized in that, said method specifically may further comprise the steps:
Steps A, EMS configuration ONT or ONU;
Step B1, EMS send the request of reading ONT or ONU data and give ONT or ONU;
After step B2, ONT or ONU receive the request of step B1, return the data of ONT or ONU and give EMS.
6. method as claimed in claim 5 is characterized in that steps A specifically may further comprise the steps:
Steps A 1, EMS send the data that ONT or ONU are set and give ONT or ONU;
Steps A 2, ONT or ONU be according to data configuration ONT or ONU in the steps A 1, and return response is set.
7. like the described arbitrary method of claim 5 to 6, it is characterized in that, pass through snmp protocol or XML protocol communication between EMS and ONT or EMS and the ONU.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188514A (en) * | 2007-11-09 | 2008-05-28 | 华为技术有限公司 | Method, device and system for automatically discovering network element device |
| CN101442438B (en) * | 2008-10-17 | 2011-04-06 | 华为终端有限公司 | Method for managing terminal equipment of access system, local terminal equipment and access system |
| CN101931831B (en) * | 2009-06-18 | 2014-03-19 | 中兴通讯股份有限公司 | Optical network unit and IP managing method of optical network unit |
| CN102377479B (en) * | 2010-08-11 | 2015-01-21 | 华为技术有限公司 | Data synchronization method and system and optical network units |
| CN102082611A (en) * | 2010-11-24 | 2011-06-01 | 中兴通讯股份有限公司 | Device and method for distributing light in passive optical network (PON) |
| EP3086508B1 (en) * | 2013-12-31 | 2018-09-26 | Huawei Technologies Co., Ltd. | Fiber-to-the-distribution point device and communication method therefor |
| CN104243206B (en) * | 2014-09-03 | 2017-12-29 | 烽火通信科技股份有限公司 | Realize the system and method to ONU radio function centralized configuration and managements |
| CN107547129A (en) * | 2016-06-23 | 2018-01-05 | 中兴通讯股份有限公司 | Link state detection method and system |
| CN107666627A (en) * | 2016-07-28 | 2018-02-06 | 上海诺基亚贝尔股份有限公司 | Data forwarding controlling method and its device in a kind of PON |
| CN107682078B (en) * | 2017-11-20 | 2019-11-01 | 国网安徽省电力公司宿州供电公司 | One kind being based on the co-operating ONU failure management method of OLT and ONU |
| CN112019299B (en) | 2019-05-31 | 2022-05-13 | 华为技术有限公司 | Data transmission method and related equipment |
| CN112235661B (en) * | 2019-07-15 | 2023-05-23 | 中兴通讯股份有限公司 | Optical network unit management method, device, system and storage medium |
| CN112822054B (en) * | 2021-01-19 | 2024-05-28 | 太仓市同维电子有限公司 | Remote management method for multiple related devices by using same network element |
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