WO2020238251A1 - 一种数据传输方法及相关设备 - Google Patents

一种数据传输方法及相关设备 Download PDF

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Publication number
WO2020238251A1
WO2020238251A1 PCT/CN2020/071700 CN2020071700W WO2020238251A1 WO 2020238251 A1 WO2020238251 A1 WO 2020238251A1 CN 2020071700 W CN2020071700 W CN 2020071700W WO 2020238251 A1 WO2020238251 A1 WO 2020238251A1
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WIPO (PCT)
Prior art keywords
data
ont
olt
template
management server
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PCT/CN2020/071700
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English (en)
French (fr)
Inventor
李伟国
胡海涛
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华为技术有限公司
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Priority to EP20814470.9A priority Critical patent/EP3955486A4/en
Publication of WO2020238251A1 publication Critical patent/WO2020238251A1/zh
Priority to US17/528,906 priority patent/US11652660B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0079—Formats for control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/2878—Access multiplexer, e.g. DSLAM
    • H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
    • H04L12/2885—Arrangements interfacing with optical systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/06—Generation of reports
    • H04L43/065—Generation of reports related to network devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/02—Standardisation; Integration
    • H04L41/0226—Mapping or translating multiple network management protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/04—Network management architectures or arrangements
    • H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0876—Network utilisation, e.g. volume of load or congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0064—Arbitration, scheduling or medium access control aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0088—Signalling aspects

Definitions

  • This application relates to the field of access network communications, and in particular to a data transmission method and related equipment.
  • IPDR Internet Protocol Detailed Record
  • DOCSIS Data Over Cable Service Interface Specification
  • the hybrid networking scenario of Passive Optical Network (PON) and D-CCAP is a typical solution for multiple system operators (MSO)
  • MSO multiple system operators
  • IPDR IPDR
  • the CMTS device can send the collected CM data to the IPDR server.
  • the statistical reporting method of ONT data still lacks a unified standard.
  • the embodiments of the present application provide a data transmission method and related equipment, which can reduce the power consumption of a management server used to manage ONT data.
  • the first aspect of this application provides a data transmission method, including:
  • the OLT obtains the data template, and then the OLT can obtain the corresponding ONT data according to the data type defined in the data template, and then the OLT encodes the ONT data according to the XDR format, and sends the encoded ONT data to the management server, which stores and Manage ONT data.
  • the OLT collects corresponding ONT data according to the data template, and encodes and reports the ONT data according to the unified XDR format.
  • This application defines a unified statistical reporting method for ONT data, and adopts standardized defined ONT data, which facilitates the storage and management of ONT data by the management server.
  • the management server can be an IPDR server.
  • the IPDR server can be used to store the CM data collected by the CMTS in the D-CCAP scenario. Then, in the hybrid networking scenario of PON and D-CCAP, the IPDR server is used at the same time To store the ONT data collected by the OLT, there is no need to configure a management server dedicated to storing and managing ONT data, which reduces the cost of network deployment.
  • the OLT can also receive the cable modem (Cable Modem, CM) data sent by the Cable Modem Terminal System (CMTS) device, and then the OLT encodes the CM data according to the XDR format, and sends the encoded CM data to IPDR server.
  • CM Cable Modem Terminal System
  • CM data is also reported to the IPDR server through the OLT, so the IPDR server can store and manage ONT data and CM data, and both ONT data and CM data use XDR encoding This method improves the scalability of the program.
  • the OLT receives the CM data sent by the CMTS device, where the CM data is encoded by the CMTS device according to XDR, so the OLT does not need to encode the CM data directly to the IPDR server.
  • the CMTS device can also perform XDR encoding on the CM data, which improves the flexibility of the solution.
  • the data template includes the media access control MAC address of the ONT, the online status of the ONT, the last registration time of the ONT, the identifier of the ONT service flow, the flow template of the ONT service flow, the direction of the ONT service flow, and the number of forwarded bytes of the ONT service flow At least two of the number of forwarded packets of the ONT service flow and the number of discarded packets of the ONT service flow. It is understandable that, in addition to the data types of ONTs in the data templates listed above, the data templates in actual applications may also include other ONT data types, which are not specifically limited here.
  • the OLT collects ONT data according to the data template. Since the data template includes multiple ONT data types, the OLT can collect multiple types of ONT data at one time and report it to the management server in a unified manner. Each type of ONT data sends a query request to the OLT once, which reduces the power consumption of the management server.
  • the data template obtained by the OLT includes:
  • the OLT receives the data template sent by the management server.
  • a specific implementation manner for the OLT to obtain a data template is provided, that is, the OLT receives the data template sent by the management server, and the management server uniformly issues the data template to the OLT, which improves the practicability of the solution.
  • the second aspect of the present application provides an OLT, including:
  • the first obtaining unit is configured to obtain a data template, where the data template indicates at least two data types associated with the optical network terminal ONT;
  • the second acquiring unit is used to acquire ONT data according to the data template
  • the encoding unit is used to encode the ONT data according to the external data representation XDR;
  • the sending unit is used to send ONT data to the management server.
  • the management server is an IPDR server.
  • the second acquisition unit is also used for:
  • the coding unit is also used for:
  • the sending unit is also used for:
  • the second acquisition unit is also used for:
  • CM data is encoded by CMTS equipment according to XDR;
  • the sending unit is also used for:
  • the data template includes the MAC address of the ONT, the online status of the ONT, the last registration time of the ONT, the identifier of the ONT service flow, the flow template of the ONT service flow, and the direction of the ONT service flow , At least two of the number of bytes forwarded by the ONT service stream, the number of packets forwarded by the ONT service stream, and the number of discarded packets by the ONT service stream.
  • the first obtaining unit is specifically configured to:
  • the third aspect of the present application provides an OLT, including:
  • Program codes are stored in the memory
  • the fourth aspect of the embodiments of the present application provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the process in the data transmission method of the first aspect.
  • the fifth aspect of the embodiments of the present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the process in the data transmission method of the first aspect.
  • the OLT obtains the data template, and then the OLT can obtain the corresponding ONT data according to the data type defined in the data template, and then the OLT encodes the ONT data according to the XDR format, and sends the encoded ONT data to the management server ,
  • the management server stores and manages ONT data.
  • the OLT collects the corresponding ONT data according to the data template, and encodes and reports the ONT data according to the unified XDR format.
  • This application defines a unified statistical reporting method for ONT data, and adopts standardized defined ONT data, which facilitates the storage and management of ONT data by the management server.
  • Figure 1 is a schematic diagram of the network structure of a PON scenario
  • FIG. 2 is a schematic diagram of an embodiment of the data transmission method of this application.
  • Figure 3 is a schematic diagram of the network structure of a hybrid networking scenario of PON and D-CCAP;
  • FIG. 5 is a schematic diagram of an embodiment of the OLT of this application.
  • FIG. 6 is a schematic diagram of the structure of the OLT of this application.
  • the embodiments of the present application provide a data transmission method and related equipment, which can reduce the power consumption of a management server used to manage ONT data.
  • the current broadband access technologies are mainly divided into copper wire access technologies (such as various DSL technologies) and optical access technologies.
  • the copper wire access technology may include various digital subscriber line (digital subscriber line, DSL) technologies, and the access network implemented by the optical access technology is called the optical access network (OAN).
  • DSL digital subscriber line
  • OAN optical access network
  • Passive optical network is an implementation technology of optical access network, and PON is an optical access technology of point-to-multipoint transmission.
  • This application mainly provides an ONT data collection process applied to a PON scenario or a hybrid networking scenario of PON and D-CCAP.
  • the following two scenarios are combined to introduce the data transmission method of the embodiment of this application:
  • FIG. 1 is a system architecture diagram of an embodiment of this application applied in a PON scenario.
  • the optical line terminal (optical line terminal, OLT) (102) is used to provide the network side interface for the OAN, the OLT (102) is connected to the upper management server (101), and the lower layer is connected to one or more optical distribution networks (optical distribution network). , ODN) (103).
  • OLT optical line terminal
  • ODN optical distribution network
  • the ODN (103) includes an optical splitter (104) for optical power distribution, a backbone optical fiber connected between the optical splitter (104) and the OLT (102), and an optical network terminal connected between the optical splitter (104) and the optical network terminal (optical network terminal). , ONT) (105) branch fiber between.
  • the ODN (103) transmits the downstream data of the OLT (102) to each ONT (105) through the splitter (104).
  • the ODN (103) aggregates the upstream data of the ONT (105) and transmits it to the OLT (102).
  • the ONT (105) provides a user-side interface for the OAN and is also connected to the ODN (103).
  • the management server (101) in the embodiment of the present application is specifically used to store and manage ONT data, where the management server (101) may be a network management device that performs network management tasks such as network planning or network monitoring.
  • the ONT (105) can report ONT data to the OLT (102) through the ODN (103), and the OLT (102) encodes the collected ONT data in a unified format and sends it to the management server (101), and the management server (101) Store and manage the ONT data.
  • An embodiment of the data transmission method in this application includes:
  • the OLT obtains a data template.
  • the OLT may receive a data template sent by the management server, where the data template may indicate at least two data types associated with the ONT. It should be noted that the OLT can also obtain the data template by pre-configuring the data template and other methods, and the specifics are not limited here.
  • the data type of ONT in the data template please refer to Table 1 below.
  • the data template includes the media access control (MAC) address of the ONT, the online status of the ONT, the last registration time of the ONT, the identifier of the ONT service flow, and the flow template of the ONT service flow. At least two of the direction of the ONT service flow, the number of forwarded bytes of the ONT service flow, the number of forwarded packets of the ONT service flow, and the number of discarded packets of the ONT service flow.
  • the data template may also include part of information associated with the OLT, such as the name of the OLT device and the start-up time of the OLT.
  • the data template listed in Table 1 does not include all the data types of the ONTs in this application.
  • the ONT in the data template of this application corresponds to the DOCSIS standard CM in.
  • the data template may also include other items corresponding to it (for example, the character data type, data length, and XDR object corresponding to each type of ONT data).
  • the IPDR data collection template that is, the character data type and data length parameters corresponding to the ONT data in the data template defined in this application can be consistent with the character data type and data length parameters corresponding to the CM data in the IPDR data collection template defined by DOCSIS.
  • the OLT obtains ONT data according to the data template.
  • one OLT can manage multiple ONTs.
  • the OLT broadcasts to all managed ONTs, requesting each ONT to report ONT data, and then each ONT adopts time division multiple access (TDMA) technology to connect its own ONT
  • TDMA time division multiple access
  • the data is sent to the OLT. Specifically, the OLT will fill in the ONT data corresponding to each data type according to the data template.
  • the OLT sends the ONT data to the management server.
  • the OLT after the OLT collects the ONT data, it can encode the ONT data in a unified format, and then send the encoded ONT data to the management server, and the management server stores and manages the ONT data.
  • the encoding method It can be External Data Representation (XDR).
  • XDR External Data Representation
  • the OLT can package and send the ONT data filled in the data template to the management server in a unified manner.
  • the OLT can also send the ONT data to the management server in batches according to different requirements, and the details are not limited here.
  • a connection between the OLT and the management server may be an active mode or a passive mode, which is not specifically limited here.
  • Active mode means that the OLT actively initiates a connection request to the management server, the management server listens to the port status connected to the OLT, and the management server responds and establishes a connection after receiving the request.
  • Passive mode means that the management server actively initiates a connection request to the OLT, the OLT listens to the state of the port connected to the management server, and the OLT responds and establishes a connection after receiving the request.
  • the OLT can send the ONT data to the management server in multiple ways, for example, it can be a periodic report or a one-time report, which is not specifically limited here.
  • Periodic reporting means that the OLT is configured with a statistical period.
  • the OLT can send a session start message to the management server to identify the start of data reporting of the statistical period.
  • the OLT sends the collected ONT data to the management server.
  • the OLT sends a session end message to the management server to mark the end of the data reporting of the statistical period.
  • the statistical period can be issued by the management server to the OLT, or it can be configured locally on the OLT. The details are not limited here.
  • a report means that the management server initiates a statistics session, and then the OLT sends the collected ONT data to the management server according to the instructions of the statistics session.
  • the statistics session can be a logical connection between the OLT and the management server to complete the data transmission And recording, there can be multiple statistical sessions between the OLT and the management server, and different statistical sessions can be distinguished by the session identifier.
  • the management server can store the ONT data locally and forward the ONT data to the MSO background operation system, and the MSO background operation system (such as OSS or BSS) can store the ONT data Analyze to meet the relevant requirements of operators such as billing.
  • MSO background operation system such as OSS or BSS
  • the OLT obtains the data template, and then the OLT can obtain the corresponding ONT data according to the data type defined in the data template, and then the OLT encodes the ONT data according to the XDR format, and sends the encoded ONT data to the management server ,
  • the management server stores and manages ONT data.
  • the OLT collects the corresponding ONT data according to the data template, and encodes and reports the ONT data according to the unified XDR format.
  • This application defines a unified statistical reporting method for ONT data, and adopts standardized defined ONT data, which facilitates the storage and management of ONT data by the management server.
  • FIG. 3 is a system architecture diagram of the embodiment of this application applied in a hybrid networking scenario of PON and D-CCAP.
  • CM CMTS equipment
  • ONT CM device
  • OLT OLT
  • IPDR server IPDR server
  • management server 306
  • the CMTS device (302) is used to collect CM data from the CM device (301), and send the CM data to the IPDR server (305) after encoding the CM data.
  • the OLT (304) can collect ONT data from the ONT (303), encode the ONT data and send it to the management server (306). It can be seen that the IPDR server (305) and the management server (306) are used to manage CM data and ONT data, respectively.
  • the management server (306) may specifically be an IPDR server (305), that is, the IPDR server is used to manage ONT data in addition to CM data. No longer separate management server (306) and IPDR server (305) can reduce the cost of network deployment to a certain extent.
  • the management server (306) is specifically an IPDR server (305) in a hybrid networking scenario of PON and D-CCAP.
  • another embodiment of the data transmission method in this application includes:
  • the OLT obtains a data template.
  • the OLT obtains ONT data according to the data template.
  • the OLT sends ONT data to the IPDR server.
  • steps 401-403 are similar to steps 201-203 in the embodiment shown in FIG. 2, except that the management server interacts with the OLT in the embodiment shown in FIG. 2, while in the embodiment shown in FIG. It is the IPDR server that interacts, so I won’t go into details here.
  • the CMTS device obtains CM data.
  • the CMTS device can collect CM data in a manner defined in the DOCSIS standard.
  • the CMTS device can receive a data template about CM data sent by an IPDR server, and then the CMTS device collects corresponding CM data according to the data template.
  • the CMTS device sends CM data to the OLT.
  • the CMTS device is a device attached to the OLT, that is, the data report of the CMTS device needs to pass through the OLT, so the CMTS needs to send the collected CM data to the OLT first
  • the CMTS device can encode the CM data according to a unified format, and send the encoded CM data to the OLT, where the encoding method can be XDR. It is understandable that CM data and ONT data are encoded in the same encoding method.
  • CMTS equipment and OLT can be independent equipment, or they can be aggregated together as an integrated optical and copper access equipment, that is, CMTS equipment and OLT equipment are virtual to the outside It is an independent access device to interact with the IPDR server, which is not specifically limited here.
  • the OLT sends the CM data to the IPDR server.
  • the OLT can forward the received CM data to the IPDR server. It is understandable that if the CMTS device does not encode the CM data in step 405, the OLT can also perform processing on the CM data after receiving the CM data.
  • the encoding is not limited here.
  • steps 401-403 and steps 404-406 there is no fixed timing relationship between steps 401-403 and steps 404-406 in this embodiment. Steps 401-403 can be performed first, or steps 404-406 can be performed first, or step 401 can be performed simultaneously. -403 and steps 404-406, the details are not limited here.
  • the OLT can package and send the CM data and ONT data to the IPDR server in a unified manner, or package and send the CM data and ONT data to the IPDR server separately, which is not specifically limited here.
  • the IPDR server as the management server can not only store and manage the CM data collected by the CMTS, but also store and manage the ONT data collected by the OLT, without any need
  • the separate management server and IPDR server reduce the cost of network deployment.
  • an embodiment of the OLT in the embodiment of the present application includes:
  • the first obtaining unit 501 is configured to obtain a data template, where the data template indicates at least two data types associated with the optical network terminal ONT;
  • the second obtaining unit 502 is configured to obtain ONT data according to the data template
  • the encoding unit 503 is configured to encode ONT data according to XDR;
  • the sending unit 504 is configured to send the encoded ONT data to the management server.
  • the management server includes an IPDR server.
  • the second obtaining unit 502 is further configured to:
  • the coding unit 503 is also used for:
  • the sending unit 504 is also used for:
  • the second obtaining unit 502 is further configured to:
  • CM data is encoded by CMTS equipment according to XDR;
  • the sending unit 504 is also used for:
  • the data template includes the MAC address of the ONT, the online status of the ONT, the last registration time of the ONT, the identifier of the ONT service flow, the flow template of the ONT service flow, the direction of the ONT service flow, and the forwarding bytes of the ONT service flow At least two of the number of packets forwarded by the ONT service flow, and the number of discarded packets of the ONT service flow.
  • the first obtaining unit 501 is specifically configured to:
  • the first obtaining unit 501 obtains the data template
  • the second obtaining unit 502 obtains the ONT data according to the data template
  • the coding unit 503 codes the ONT data according to the XDR format
  • the sending unit 504 converts the coded ONT data Send to the management server.
  • the OLT collects the corresponding ONT data according to the data template, and encodes and reports the ONT data according to the unified XDR format.
  • This application defines a unified statistical reporting method for ONT data, and adopts standardized defined ONT data, which facilitates the storage and management of ONT data by the management server.
  • FIG. 6 is a schematic diagram of the hardware structure of an OLT (600) provided by this application.
  • the OLT (600) mainly includes the following parts: a processor 101, a memory 102, a communication device 103, and a power management module 104.
  • the power management module 104 is used to provide a stable current for the OLT (600).
  • the communication device 603 can be used for the OLT (600) to communicate with other communication equipment, such as network side equipment, other optical line terminals, user equipment, etc.
  • the network side equipment in this application is a management server.
  • the communication device 603 is configured with a first PON interface and a second PON interface.
  • the first PON interface is used for optical communication between the OLT (600) and upper-layer equipment (other optical line terminals on the upper layer)
  • the second PON interface is used for optical communication between the OLT (600) and the user-end equipment.
  • the first PON interface and the second PON interface are both ports connected using PON (passive optical network) technology.
  • the first PON interface may include at least one of the following: Ethernet PON (ethernet passive optical network, EPON), Gigabit PON (gigabit passive optical network, GPON), 10 Gigabit Ethernet PON (10G ethernet passive optical network, 10G-EPON) or a higher working speed PON interface that will appear in the future.
  • the second PON interface may include at least one of the following Types: GPON interface, EPON interface, symmetrical 10G GPON interface, asymmetrical 10G GPON interface, 10G EPON interface or PON interface with higher working speed that will appear in the future.
  • the first PON interface and the second PON interface may be different types of PON interfaces, or the same type of PON interfaces.
  • the function of each module of OLT (600) is introduced in the following section.
  • the first PON interface and the second PON interface are different types of PON interfaces.
  • the first PON interface and the second PON interface may be different types of PON interfaces
  • the processor 601 is configured to perform protocol conversion processing on the optical signal received by the first PON interface or the second PON interface, so that the processing The latter optical signal is suitable for the second PON interface or the first PON interface. Two conversion methods are described below.
  • the first is to directly perform protocol conversion on optical signals.
  • the processor 601 when data is transmitted downstream, the processor 601 is configured to use the protocol corresponding to the first PON interface to parse the first optical signal received by the first PON interface, and use the protocol corresponding to the second PON interface Encapsulate the parsed first optical signal to complete the protocol conversion of the first optical signal; when transmitting data upstream, the processor 101 is configured to use the protocol corresponding to the second PON interface to transfer the second PON interface to the second PON interface.
  • the optical signal is analyzed, and the analyzed second optical signal is encapsulated using the protocol corresponding to the first PON interface to complete the protocol conversion of the second optical signal.
  • the second type is to perform protocol conversion on the electrical signal after converting the optical signal into an electrical signal.
  • the OLT (600) may further include an optical module 605, a first PON MAC chip 606, and a second PON MAC chip 607, where the first PON MAC chip 606 uses the protocol corresponding to the first PON interface, and the first The second PON MAC chip 607 uses the protocol corresponding to the second PON interface.
  • the processor 601 When transmitting data downstream, the processor 601 is specifically configured to instruct the optical module 605 to convert the first optical signal received by the first PON interface into a first electrical signal; instruct the first PON MAC chip 606 to perform protocol analysis on the first electrical signal Frame; instruct the second PON MAC chip 607 to perform protocol framing on the first electrical signal after protocol deframing; instruct the optical module 605 to perform electro-optical conversion on the first electrical signal after protocol framing to obtain the processed first electrical signal Optical signal, thereby completing the protocol conversion of the first optical signal.
  • the processor 601 When transmitting data in the upstream, the processor 601 is specifically configured to instruct the optical module 605 to convert the second optical signal received by the second PON interface into a second electrical signal; instruct the second PON MAC chip 607 to perform the second electrical signal Protocol deframing; instructs the first PON MAC chip 606 to perform protocol framing on the second electrical signal after protocol deframing; instructs the optical module 605 to perform electro-optical conversion on the second electrical signal after protocol framing to obtain the processed The second optical signal, thereby completing the protocol conversion of the second optical signal.
  • the first PON interface and the second PON interface are the same type of PON interface.
  • the optical line terminal can perform processing such as denoising and signal enhancement on the received signal through the processor to improve the reliability of signal transmission.
  • the communication device 603 may also be configured with an Ethernet interface, which is an interface that uses the Ethernet protocol for communication, and can be used for communication between the OLT (600) and upper network side devices (switches, routers, etc.).
  • Ethernet interface is an interface that uses the Ethernet protocol for communication, and can be used for communication between the OLT (600) and upper network side devices (switches, routers, etc.).
  • the memory 602 is coupled with the processor 601, and is configured to store various software programs and/or multiple sets of instructions.
  • the memory 602 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 602 can store an operating system (hereinafter referred to as system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • system such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 602 may also store a network communication program, which may be used to communicate with one or more optical line terminals, one or more user end devices, and one or more network side devices.
  • the processor 601 can be used to read and execute computer-readable instructions, complete the management function of the OLT (600), and interpret, control or process the messages received by the OLT (600). Specifically, the processor 601 may be used to call a program stored in the memory 602 and execute instructions contained in the program. The instructions may be used to implement the signal transmission function of the OLT (600) in the PON communication network.
  • the OLT (600) may also include an uplink board, a backplane that provides physical connections for each unit, as well as clocks, fans, fan control modules, etc., which will not be repeated here.
  • the OLT (600) shown in FIG. 6 is only an implementation manner of the present application. In practical applications, the OLT (600) may also include more or fewer components, which is not limited here.
  • the OLT can be used to perform all or part of the actions performed by the OLT in the embodiments shown in FIG. 2 and FIG. 4.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请实施例公开了一种数据传输方法及相关设备。本申请实施例方法包括：OLT获取数据模板，之后OLT可以按照数据模板中定义的数据类型获取对应的ONT数据，进而OLT按照XDR格式对ONT数据进行编码，并将编码后的ONT数据发送至管理服务器，该管理服务器存储并管理ONT数据。通过上述描述，OLT按照数据模板收集对应的ONT数据，并按照统一的XDR格式对ONT数据进行编码和上报。本申请定义了一种统一的ONT数据的统计上报方式，采用标准化定义的ONT数据，有利于管理服务器对ONT数据的存储和管理。

Description

一种数据传输方法及相关设备
本申请要求于2019年05月31日提交中国专利局、申请号为201910469620.2、发明名称为“一种数据传输方法及相关设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及接入网通信领域，尤其涉及一种数据传输方法及相关设备。
背景技术
在分布式有线电视融合接入平台(Distributed-Converged Cable Access Platform，D-CCAP)场景中，互联网协议详细记录(IP Detail Record，IPDR)可以提供优先数据传输业务接口规范(Data Over Cable Service Interface Specification，DOCSIS)标准定义的统计上报机制和统计信息。
随着铜线接入向光接入的演进，无源光网络(Passive Optical Network，PON)与D-CCAP的混合组网场景作为多系统运营商(Multiple System Operator，MSO)的一种典型解决方案已经得到广泛的应用。其中按照IPDR的定义，CMTS设备可以将采集到的CM数据发送至IPDR服务器，然而ONT数据的统计上报方式还缺乏统一的标准。
发明内容
本申请实施例提供了一种数据传输方法及相关设备，可以降低用于管理ONT数据的管理服务器的功耗。
有鉴于此，本申请第一方面提供一种数据传输方法，包括：
OLT获取数据模板，之后OLT可以按照数据模板中定义的数据类型获取对应的ONT数据，进而OLT按照XDR格式对ONT数据进行编码，并将编码后的ONT数据发送至管理服务器，该管理服务器存储并管理ONT数据。
本实施例中，OLT按照数据模板收集对应的ONT数据，并按照统一的XDR格式对ONT数据进行编码和上报。本申请定义了一种统一的ONT数据的统计上报方式，采用标准化定义的ONT数据，有利于管理服务器对ONT数据的存储和管理。
可选的，在一些可能的实现方式中，
管理服务器具体可以是IPDR服务器，根据DOCSIS标准的定义，IPDR服务器可以用于存储D-CCAP场景中CMTS采集到的CM数据，那么在PON与D-CCAP的混合组网场景，将IPDR服务器同时用来存储OLT采集到的ONT数据，就不用再去配置专门用于存储和管理ONT数据的管理服务器，降低了网络部署成本。
可选的，在一些可能的实现方式中，
OLT还可以接收线缆调制解调器终端系统(Cable Modem Terminal System，CMTS)设备发送的线缆调制解调器(Cable Modem，CM)数据，进而OLT按照XDR格式对CM数据进行编码，并发送编码后的CM数据至IPDR服务器。
本实施例中，在PON与D-CCAP的混合组网场景中CM数据也通过OLT上报IPDR服务器，因此IPDR服务器可以存储并管理ONT数据以及CM数据，并且ONT数据和CM数据均采用XDR的编码方式，提高了本方案的扩展性。
可选的，在一些可能的实现方式中，
OLT接收CMTS设备发送的CM数据，其中，该CM数据由CMTS设备根据XDR对其进行编码，那么OLT无需再对CM数据进行编码直接将其转发至IPDR服务器。
本实施例中，还可以由CMTS设备对CM数据进行XDR编码，提高了本方案的灵活性。
可选的，在一些可能的实现方式中，
数据模板中包括ONT的媒体访问控制MAC地址、ONT的在线状态、ONT的最后注册时间、ONT业务流的标识、ONT业务流的流量模板、ONT业务流的方向、ONT业务流的转发字节数、ONT业务流的转发报文数以及ONT业务流的丢弃报文数中的至少两项。可以理解的是，除了上述列举的数据模板中ONT的数据类型外，实际应用中数据模板还可以包括其他的ONT数据类型，具体此处不做限定。
本实施例中，OLT根据数据模板采集ONT数据，由于数据模板中包括了多种ONT的数据类型，那么OLT可以一次性采集多种类型的ONT数据，并统一上报管理服务器，无需管理服务器针对每个类型的ONT数据都向OLT发送一次查询请求，降低了管理服务器的功耗。
可选的，在一些可能的实现方式中，OLT获取数据模板包括：
OLT接收管理服务器发送的数据模板。
本实施例中，提供了一种OLT获取数据模板的具体实现方式，即OLT接收管理服务器发送的数据模板，由管理服务器统一向OLT下发数据模板，提高了本方案的实用性。
本申请第二方面提供了一种OLT，包括：
第一获取单元，用于获取数据模板，数据模板指示至少两项与光网络终端ONT关联的数据类型；
第二获取单元，用于根据数据模板获取ONT数据；
编码单元，用于根据外部数据表示法XDR对ONT数据进行编码；
发送单元，用于发送ONT数据至管理服务器。
可选的，在一些可能的实现方式中，管理服务器是IPDR服务器。
可选的，在一些可能的实现方式中，
第二获取单元还用于：
接收CMTS发送的CM数据；
编码单元还用于：
根据XDR对CM数据进行编码；
发送单元还用于：
将编码后的CM数据发送至IPDR服务器。
可选的，在一些可能的实现方式中，
第二获取单元还用于：
接收CMTS设备发送的CM数据，CM数据由CMTS设备根据XDR进行编码；
发送单元还用于：
将编码后的CM数据发送至IPDR服务器。
可选的，在一些可能的实现方式中，数据模板中包括ONT的MAC地址、ONT的在线状态、ONT的最后注册时间、ONT业务流的标识、ONT业务流的流量模板、ONT业务流的方向、ONT业务流的转发字节数、ONT业务流的转发报文数以及ONT业务流的丢弃报文数中的至少两项。
可选的，在一些可能的实现方式中，第一获取单元具体用于：
接收管理服务器发送的数据模板。
本申请第三方面提供了一种OLT，包括：
处理器和存储器；
存储器中存储有程序代码；
处理器调用存储器中的程序代码时执行上述第一方面中任意实现方式的流程。
本申请实施例第四方面提供了一种计算机可读存储介质，包括指令，当指令在计算机上运行时，使得计算机执行上述第一方面的数据传输方法中的流程。
本申请实施例第五方面提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面的数据传输方法中的流程。
从以上技术方案可以看出，本申请实施例具有以下优点：
本申请实施例中，OLT获取数据模板，之后OLT可以按照数据模板中定义的数据类型获取对应的ONT数据，进而OLT按照XDR格式对ONT数据进行编码，并将编码后的ONT数据发送至管理服务器，该管理服务器存储并管理ONT数据。通过上述描述，OLT按照数据模板收集对应的ONT数据，并按照统一的XDR格式对ONT数据进行编码和上报。本申请定义了一种统一的ONT数据的统计上报方式，采用标准化定义的ONT数据，有利于管理服务器对ONT数据的存储和管理。
附图说明
图1为PON场景的网络结构示意图；
图2为本申请数据传输方法的一个实施例示意图；
图3为PON与D-CCAP的混合组网场景的网络结构示意图；
图4为本申请数据传输方法的另一个实施例示意图；
图5为本申请OLT的一个实施例示意图；
图6为本申请OLT的结构示意图。
具体实施方式
本申请实施例提供了一种数据传输方法及相关设备，可以降低用于管理ONT数据的管理服务器的功耗。
目前的宽带接入技术主要区分为铜线接入技术(例如各种DSL技术)和光接入技术。其中，铜线接入技术可以包括各种数字用户线路(digital subscriber line，DSL)技术， 由光接入技术实现的接入网称为光接入网(optical access network，OAN)。
无源光网络(passive optical network，PON)是光接入网的一种实现技术，PON是一种点对多点传送的光接入技术。
本申请主要提供了一种应用于PON场景或PON与D-CCAP的混合组网场景的ONT数据采集流程，下面分别结合上述两种场景对本申请实施例的数据传输方法进行介绍：
第一、PON场景。
请参阅图1，为本申请实施例应用在PON场景中的一个系统架构图。
其中，光线路终端(optical line terminal，OLT)(102)用来为OAN提供网络侧接口，OLT(102)连接上层的管理服务器(101)，下层连接一个或者多个光分配网络(optical distribution network，ODN)(103)。
ODN(103)包括用于光功率分配的分光器(104)、连接在分光器(104)和OLT(102)之间的主干光纤，以及连接在分光器(104)和光网络终端(optical network terminal，ONT)(105)之间的分支光纤。下行传输数据时，ODN(103)将OLT(102)下行的数据通过分光器(104)传输到各个ONT(105)。同样的，上行传输数据时，ODN(103)将ONT(105)的上行数据汇聚后传输到OLT(102)，ONT(105)为OAN提供用户侧接口，同时与ODN(103)相连。
需要说明的是，本申请实施例中的管理服务器(101)专门用于存储和管理ONT数据，其中，该管理服务器(101)可以是执行网络规划或网络监视等网络管理任务的网络管理设备。具体的，ONT(105)可以通过ODN(103)向OLT(102)上报ONT数据，OLT(102)将收集到的ONT数据按照统一的格式编码后发送至管理服务器(101)，并由管理服务器(101)存储和管理该ONT数据。
为便于理解，下面对本申请实施例中的具体流程进行详细描述。请参阅图2，本申请中数据传输方法的一个实施例包括：
201、OLT获取数据模板。
本实施例中，OLT可以接收管理服务器发送的数据模板，其中，该数据模板可以指示至少两项与ONT关联的数据类型。需要说明的是，OLT也可以通过预先配置好该数据模板等其他方式获取数据模板，具体此处不做限定。关于数据模板中ONT的数据类型，请参阅下表1。
表1
Figure PCTCN2020071700-appb-000001
Figure PCTCN2020071700-appb-000002
从表1中可以看出，数据模板中包括ONT的媒体访问控制(media access control address，MAC)地址、ONT的在线状态、ONT的最后注册时间、ONT业务流的标识、ONT业务流的流量模板、ONT业务流的方向、ONT业务流的转发字节数、ONT业务流的转发报文数以及ONT业务流的丢弃报文数中的至少两项。其中，该数据模板中还可以包括与OLT相关联的部分信息，例如OLT设备名称以及OLT启动时间等。
需要说明的是，表1中列举出数据模板并没有包含本申请中所有的ONT的数据类型，具体可以参考当前DOCSIS中关于CM的数据类型的定义，即本申请数据模板中的ONT对应DOCSIS标准中的CM。此外，该数据模板中除了可以包含ONT的数据类型外还可以包括与之对应其他项目(例如每一类ONT数据对应的字符数据类型、数据长度以及XDR对象等)，具体可以参照DOCSIS中定义的IPDR数据采集模板，即本申请定义的数据模板中ONT数据对应的字符数据类型以及数据长度等参数可以与DOCSIS定义的IPDR数据采集模板中CM数据对应的字符型数据类型以及数据长度等参数一致。
202、OLT根据数据模板获取ONT数据。
本实施例中，一个OLT可以管理多个ONT，OLT会向所有管理的ONT进行广播，请求各ONT上报ONT数据，进而各ONT采用时分多址(time division multiple access，TDMA)技术将自身的ONT数据发送至OLT。具体的，OLT会按照数据模板填写与各数据类型所对应的ONT数据。
203、OLT发送ONT数据至管理服务器。
本实施例中，OLT采集到ONT数据后，可以按照统一的格式对ONT数据进行编码，之后将编码后的ONT数据发送至管理服务器，由管理服务器存储并管理ONT数据，具体的，该编码方式可以是外部数据表示法(External Data Representation，XDR)。其中，OLT 可以将数据模板中填写好的ONT数据统一打包发送至管理服务器，当然OLT也可以根据不同的需求分批次向管理服务器发送ONT数据，具体此处不做限定。
可选的，OLT与管理服务器之间建立连接的方式可以有多种，例如可以是主动模式或被动模式等，具体此处不做限定。主动模式是指OLT主动向管理服务器发起连接请求，管理服务器侦听与OLT连接的端口状态，管理服务器收到请求后作出响应并建立连接。被动模式是指管理服务器主动向OLT发起连接请求，OLT侦听与管理服务器连接的端口状态，OLT收到请求后作出响应并建立连接。
可选的，OLT向管理服务器发送ONT数据的方式可以有多种，例如可以是周期上报或一次上报等，具体此处不做限定。周期上报是指OLT配置有统计周期，当统计周期开始时OLT可以发送会话开始的消息至管理服务器，标识该统计周期的数据上报开始，接着OLT将采集到的ONT数据发送至管理服务器，当统计周期结束时，OLT发送会话结束消息至管理服务器，标识该统计周期的数据上报结束，可以理解的是，该统计周期可以是由管理服务器下发到OLT的，也可以是在OLT本地配置的，具体此处不做限定。一次上报是指管理服务器发起一个统计会话，之后OLT根据该统计会话的指示将采集到的ONT数据发送至管理服务器，其中，统计会话可以是OLT与管理服务器之间的逻辑连接，完成数据的传输和记录，OLT和管理服务器之间可以有多个统计会话，并通过会话标识来区分不同的统计会话。
需要说明的是，管理服务器接收了OLT发送的ONT数据后可以在本地存储该ONT数据，并将该ONT数据转发至MSO后台运行系统，MSO后台运行系统(如OSS或BSS)可以对该ONT数据进行分析以满足运营商的计费等相关需求。
本申请实施例中，OLT获取数据模板，之后OLT可以按照数据模板中定义的数据类型获取对应的ONT数据，进而OLT按照XDR格式对ONT数据进行编码，并将编码后的ONT数据发送至管理服务器，该管理服务器存储并管理ONT数据。通过上述描述，OLT按照数据模板收集对应的ONT数据，并按照统一的XDR格式对ONT数据进行编码和上报。本申请定义了一种统一的ONT数据的统计上报方式，采用标准化定义的ONT数据，有利于管理服务器对ONT数据的存储和管理。
第二、PON与D-CCAP的混合组网场景。
上面主要描述了在PON场景中OLT向管理服务器发送ONT数据的流程，可以理解的是，随着铜线接入向光接入的演进，PON与D-CCAP的混合组网场景作为MSO的一种典型解决方案已经得到广泛的应用。
请参阅如图3，为本申请实施例应用在PON与D-CCAP的混合组网场景中的一个系统架构图。
在PON与D-CCAP的混合组网场景中，可以包括CM(301)、CMTS设备(302)、ONT(303)、OLT(304)、IPDR服务器(305)以及管理服务器(306)。其中，CMTS设备(302)用于收集来自CM设备(301)的CM数据，并且对CM数据编码后发送到IPDR服务器(305)。OLT(304)可以收集来自ONT(303)的ONT数据，并对ONT数据编码后发送至管理服务器(306)。可以看出，IPDR服务器(305)和管理服务器(306)分别用于管理CM数据和ONT数据。
除此之外，在PON与D-CCAP的混合组网场景中，管理服务器(306)具体可以就是IPDR服务器(305)，即IPDR服务器除了管理CM数据外还用于管理ONT数据。不再分立管理服务器(306)以及IPDR服务器(305)可以在一定程度上降低网络部署的成本。
因此，下面主要介绍PON与D-CCAP的混合组网场景中，管理服务器(306)具体为IPDR服务器(305)的实施例。
请参阅图4，本申请中数据传输方法的另一个实施例包括：
401、OLT获取数据模板。
402、OLT根据数据模板获取ONT数据。
403、OLT向IPDR服务器发送ONT数据。
本实施例中，步骤401-403与图2所示实施例中的步骤201-203类似，只是图2所示实施例中与OLT交互的是管理服务器，而图4所示实施例中与OLT交互的是IPDR服务器，具体此处不再赘述。
404、CMTS设备获取CM数据。
本实施例中，CMTS设备可以按照DOCSIS标准中定义的方式采集CM数据，例如CMTS设备可以接收IPDR服务器发送的关于CM数据的数据模板，进而CMTS设备根据该数据模板采集对应的CM数据。
405、CMTS设备向OLT发送CM数据。
本实施例中，从图3所示的网络结构中可以看出，CMTS设备属于OLT的下挂设备，即CMTS设备的数据上报需要通过OLT，因此CMTS需要将采集到的CM数据先发送至OLT，具体的，CMTS设备可以按照统一的格式对CM数据进行编码，并将编码后的CM数据发送至OLT，其中，该编码方式可以是XDR。可以理解的是，CM数据和ONT数据采用的是同样的编码方式进行编码。
需要说明的是，PON与D-CCAP的混合组网场景中，CMTS设备与OLT可以是相互独立的设备，也可以聚合在一起作为光铜一体的接入设备，即CMTS设备与OLT设备对外虚拟为一个独立的接入设备与IPDR服务器交互，具体此处不做限定。
406、OLT向IPDR服务器发送CM数据。
本实施例中，OLT可以将接收到的CM数据转发至IPDR服务器，可以理解的是，若步骤405中CMTS设备没有对CM数据进行编码，也可以由OLT收到CM数据后对该CM数据进行编码，具体此处不做限定。
需要说明的是，本实施例中步骤401-403与步骤404-406之间没有固定的时序关系，可以先进行步骤401-403，也可以先进行步骤404-406，又或者可以同时进行步骤401-403与步骤404-406，具体此处不做限定。另外，OLT可以将CM数据与ONT数据统一打包发送至IPDR服务器，也可以将CM数据和ONT数据分别打包发送至IPDR服务器，具体此处不做限定。
本申请实施例中，在PON与D-CCAP的混合组网场景中，IPDR服务器作为管理服务器既可以存储和管理CMTS采集到的CM数据，还可以存储和管理OLT采集到的ONT数据，无需再分立管理服务器以及IPDR服务器，降低了网络部署的成本。
上面对本申请实施例中的数据传输方法进行了描述，下面对本申请实施例中的OLT进行描述：
请参阅图5，本申请实施例中OLT的一个实施例包括：
第一获取单元501，用于获取数据模板，数据模板指示至少两项与光网络终端ONT关联的数据类型；
第二获取单元502，用于根据数据模板获取ONT数据；
编码单元503，用于根据XDR对ONT数据进行编码；
发送单元504，用于将编码后的ONT数据发送至管理服务器。
可选的，管理服务器包括IPDR服务器。
可选的，可选的，第二获取单元502还用于：
接收CMTS发送的CM数据；
编码单元503还用于：
根据XDR对CM数据进行编码；
发送单元504还用于：
将编码后的CM数据发送至IPDR服务器。
可选的，第二获取单元502还用于：
接收CMTS设备发送的CM数据，CM数据由CMTS设备根据XDR进行编码；
发送单元504还用于：
将编码后的CM数据发送至IPDR服务器。
可选的，数据模板中包括ONT的MAC地址、ONT的在线状态、ONT的最后注册时间、ONT业务流的标识、ONT业务流的流量模板、ONT业务流的方向、ONT业务流的转发字节数、ONT业务流的转发报文数以及ONT业务流的丢弃报文数中的至少两项。
可选的，第一获取单元501具体用于：
接收管理服务器发送的数据模板。
本申请实施例中，第一获取单元501获取数据模板，之后第二获取单元502根据数据模板获取ONT数据，进而编码单元503按照XDR格式对ONT数据进行编码，发送单元504将编码后的ONT数据发送至管理服务器。通过上述描述，OLT按照数据模板收集对应的ONT数据，并按照统一的XDR格式对ONT数据进行编码和上报。本申请定义了一种统一的ONT数据的统计上报方式，采用标准化定义的ONT数据，有利于管理服务器对ONT数据的存储和管理。
上面从模块化功能实体的角度对本申请实施例中的OLT进行了描述，下面从硬件处理的角度对本申请施例中的OLT进行描述：
请参阅图6，图6为本申请提供的一种OLT(600)的硬件结构示意图。如图6所示，OLT(600)主要包括以下几部分：处理器101、存储器102、通信装置103、电源管理模块104。
其中，电源管理模块104用于为OLT(600)提供稳定的电流。
通信装置603可用于OLT(600)与其他通信设备进行通信，例如网络侧设备，其他光 线路终端、用户端设备等，具体的，在本申请中网络侧设备为管理服务器。通信装置603配置有第一PON接口和第二PON接口。第一PON接口用于OLT(600)和上层设备(上层的其他光线路终端)之间进行光通信，第二PON接口用于OLT(600)和用户端设备进行光通信。其中，第一PON接口和第二PON接口都是采用PON(无源光网络)技术进行连接的端口，第一PON接口可包括以下至少一种：以太网PON(ethernet passive optical network，EPON)、千兆PON(gigabit passive optical network，GPON)、10千兆以太网PON(10G ethernet passive optical network，10G-EPON)或未来出现的更高工作速率的PON接口，第二PON接口可包括以下至少一种：GPON接口、EPON接口、对称型10G GPON接口、非对称型10G GPON接口、10G EPON接口或未来出现的更高工作速率的PON接口。
本申请中，第一PON接口和第二PON接口可以是不同类型的PON接口，也可以是相同类型的PON接口。下面分情况介绍OLT(600)各个模块的功能。
(1)第一PON接口和第二PON接口是不同类型的PON接口。
可选的，第一PON接口和第二PON接口可以是不同类型的PON接口，处理器601用于对第一PON接口或第二PON接口接收到的光信号进行协议转换处理，以使得经过处理后的光信号适用于第二PON接口或第一PON接口，下面描述两种转换方式。
第一种，直接对光信号进行协议转换。在可选实施例中，在下行传输数据时，处理器601用于使用第一PON接口对应的协议对第一PON接口接收到的第一光信号进行解析，并使用第二PON接口对应的协议对经过解析后的第一光信号进行封装，完成第一光信号的协议转换；在上行传输数据时，处理器101用于使用第二PON接口对应的协议对第二PON接口接收到的第二光信号进行解析，并使用第一PON接口对应的协议对经过解析后的第二光信号进行封装，完成第二光信号的协议转换。
第二种，将光信号转换为电信号后，对电信号进行协议转换。在可选实施例中，OLT(600)还可包括光模块605、第一PON MAC芯片606，第二PON MAC芯片607，其中，第一PON MAC芯片606使用第一PON接口对应的协议，第二PON MAC芯片607使用第二PON接口对应的协议。
在下行传输数据时，处理器601具体用于指示光模块605将第一PON接口接收到的第一光信号转换为第一电信号；指示第一PON MAC芯片606对第一电信号进行协议解帧；指示第二PON MAC芯片607对经过协议解帧后的第一电信号进行协议组帧；指示光模块605对经过协议组帧后的第一电信号进行电光转换，得到处理后的第一光信号，从而完成第一光信号的协议转换。
在上行传输数据时，处理器601具体用于指示光模块605将第二PON接口接收到的第二光信号转换为第二电信号；指示第二PON MAC芯片607对所述第二电信号进行协议解帧；指示第一PON MAC芯片606对经过协议解帧后的第二电信号进行协议组帧；指示光模块605对经过协议组帧后的第二电信号进行电光转换，得到处理后的第二光信号，从而完成第二光信号的协议转换。
(2)第一PON接口和第二PON接口是相同类型的PON接口。
在第一PON接口和第二PON接口的类型相同时，光线路终端可通过处理器对接收到的 信号进行去噪、信号增强等处理，提高信号传输的可靠性。
可选的，通信装置603还可配置有以太网接口，以太网接口是采用以太网协议进行通信的接口，可用于OLT(600)和上层的网络侧设备(交换机、路由器等)进行通信。
存储器602与处理器601耦合，用于存储各种软件程序和/或多组指令。具体的，存储器602可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器602可以存储操作系统(下述简称系统)，例如ANDROID，IOS，WINDOWS，或者LINUX等嵌入式操作系统。存储器602还可以存储网络通信程序，该网络通信程序可用于与一个或多个光线路终端，一个或多个用户端设备，一个或多个网络侧设备进行通信。
处理器601可用于读取和执行计算机可读指令，完成对OLT(600)的管理功能、对OLT(600)接收到的报文进行解释、控制或处理等。具体的，处理器601可用于调用存储于存储器602中的程序，并执行该程序包含的指令，该指令可用于实现OLT(600)的在PON通信网络中的信号传输功能。
可理解的，OLT(600)还可包括上联板、为各个单元提供物理连接的背板，以及时钟、风扇、风扇控制模块等，这里不再赘述。
需要说明的，图6所示的OLT(600)仅仅是本申请的一种实现方式，实际应用中，OLT(600)还可以包括更多或更少的部件，这里不作限制。
需要说明的是，基于图6所示OLT硬件结构，该OLT可以用于执行图2以及图4所示实施例中OLT所执行的全部或部分动作。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可 以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，read-only memory)、随机存取存储器(RAM，random access memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (15)

  1. 一种数据传输方法，其特征在于，包括：
    光线路终端OLT获取数据模板；
    所述OLT根据所述数据模板获取ONT数据；
    所述OLT根据外部数据表示法XDR对所述ONT数据进行编码；
    所述OLT将编码后的ONT数据发送至所述管理服务器。
  2. 根据权利要求1所述的方法，其特征在于，所述管理服务器是互联网协议详细记录IPDR服务器。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述OLT接收线缆调制解调器终端系统CMTS设备发送的线缆调制解调器CM数据；
    所述OLT根据所述XDR对所述CM数据进行编码；
    所述OLT将编码后的所述CM数据发送至所述IPDR服务器。
  4. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述OLT接收CMTS设备发送的CM数据，所述CM数据由所述CMTS设备根据所述XDR进行编码；
    所述OLT将编码后的所述CM数据发送至所述IPDR服务器。
  5. 根据权利要求1至4中任一项所述的数据传输方法，其特征在于，所述数据模板中包括所述ONT的媒体访问控制MAC地址、所述ONT的在线状态、所述ONT的最后注册时间、ONT业务流的标识、所述ONT业务流的流量模板、所述ONT业务流的方向、所述ONT业务流的转发字节数、所述ONT业务流的转发报文数以及所述ONT业务流的丢弃报文数中的至少两项。
  6. 根据权利要求1至4中任一项所述的方法，其特征在于，所述OLT获取数据模板包括：
    所述OLT接收所述管理服务器发送的所述数据模板。
  7. 一种OLT，其特征在于，包括：
    第一获取单元，用于获取数据模板；
    第二获取单元，用于根据所述数据模板获取ONT数据；
    编码单元，用于根据外部数据表示法XDR对所述ONT数据进行编码；
    发送单元，用于将编码后的ONT数据发送至所述管理服务器。
  8. 根据权利要求7所述的OLT，其特征在于，所述管理服务器是IPDR服务器。
  9. 根据权利要求8所述的OLT，其特征在于，所述第二获取单元还用于：
    接收CMTS发送的CM数据；
    所述编码单元还用于：
    根据所述XDR对所述CM数据进行编码；
    所述发送单元还用于：
    将编码后的所述CM数据发送至所述IPDR服务器。
  10. 根据权利要求8所述的OLT，其特征在于，所述第二获取单元还用于：
    接收CMTS设备发送的CM数据，所述CM数据由所述CMTS设备根据所述XDR进行编码；
    所述发送单元还用于：
    将编码后的所述CM数据发送至所述IPDR服务器。
  11. 根据权利要求7至10中任一项所述的OLT，其特征在于，所述数据模板中包括所述ONT的MAC地址、所述ONT的在线状态、所述ONT的最后注册时间、ONT业务流的标识、所述ONT业务流的流量模板、所述ONT业务流的方向、所述ONT业务流的转发字节数、所述ONT业务流的转发报文数以及所述ONT业务流的丢弃报文数中的至少两项。
  12. 根据权利要求7至10中任一项所述的OLT，其特征在于，所述第一获取单元具体用于：
    接收所述管理服务器发送的所述数据模板。
  13. 一种OLT，其特征在于，包括：
    处理器和存储器；
    存储器中存储有程序代码；
    处理器调用存储器中的程序代码时执行如权利要求1至6中任意权利要求所述的数据传输方法。
  14. 一种计算机可读存储介质，包括指令，当指令在计算机上运行时，使得计算机执行权利要求1至6的数据传输方法的流程。
  15. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行权利要求1至6的数据传输方法的流程。
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