WO2018068238A1 - 电缆媒质转换器管理方法、装置和系统 - Google Patents

电缆媒质转换器管理方法、装置和系统 Download PDF

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WO2018068238A1
WO2018068238A1 PCT/CN2016/101935 CN2016101935W WO2018068238A1 WO 2018068238 A1 WO2018068238 A1 WO 2018068238A1 CN 2016101935 W CN2016101935 W CN 2016101935W WO 2018068238 A1 WO2018068238 A1 WO 2018068238A1
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cmc
olt
controller
message
identifier
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PCT/CN2016/101935
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English (en)
French (fr)
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沈承虎
孙艳宾
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华为技术有限公司
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Priority to CN201680085045.0A priority Critical patent/CN109076111B/zh
Priority to PCT/CN2016/101935 priority patent/WO2018068238A1/zh
Priority to EP16918843.0A priority patent/EP3515048B1/en
Publication of WO2018068238A1 publication Critical patent/WO2018068238A1/zh
Priority to US16/381,684 priority patent/US11025450B2/en

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    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H04L41/0809—Plug-and-play configuration
    • 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
    • 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
    • H04L12/2858—Access network architectures
    • H04L12/2861—Point-to-multipoint connection from the data network to the subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • 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
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 

Definitions

  • the present invention relates to the field of communications, and in particular, to a cable media converter (CMC) management method, apparatus, and system.
  • CMC cable media converter
  • the Data over Cable System Interface Specification is mainly used between the computer network and the cable TV network, and the data packet transmission between the cable TV front end and the user.
  • DOCSIS Data over Cable System Interface Specification
  • a distributed system is proposed for data transmission based on DOCSIS.
  • D-CCAP Distributed Converged Cable Access Platform
  • the cable medium converter management method, device and system provided by the invention can save network resources.
  • an embodiment of the present invention provides a cable media converter CMC management method, including:
  • the CMC controller receives, from the management channel, a message message sent by the CMC, where the second message message includes an identifier of the CMC and profile information of a CM; the identifier of the CMC is used to uniquely identify the CMC
  • the CM and the CMC are connected by a cable;
  • the CMC controller searches for the OLT corresponding to the CMC identified by the identifier according to the locally stored OLT and the CMC, and sends the configuration file information in the message packet to the determined OLT. .
  • the correspondence between the OLT and the CMC is a one-to-one relationship, and the CMC controller is connected to multiple OLTs.
  • the CMC controller acquires, in advance, CMC information respectively connected to each OLT from all OLTs connected to the CMC controller. Forming a correspondence between the CMC and the OLT.
  • an embodiment of the present invention provides a cable media converter CMC controller, where the CMC controller includes a sending module, a processing module, a receiving module, and a saving module.
  • the receiving module is configured to receive a message message sent by the CMC, where the message message includes an identifier of the CMC and configuration file information of a CM; the identifier of the CMC is used to uniquely identify the CMC;
  • the saving module is configured to save a correspondence between the OLT and the CMC;
  • the processing module is configured to determine, according to the correspondence between the OLT and the CMC saved by the saving module, an OLT corresponding to the CMC identified by the identifier in the message packet received by the receiving module;
  • the sending module is configured to send configuration file information of the CM in the message packet to the determined OLT.
  • the correspondence between the OLT and the CMC is a one-to-one relationship, and the CMC controller is connected to multiple OLTs.
  • the saving module obtains, in advance, CMC information respectively connected to each OLT from all OLTs connected to the CMC controller, Forming a correspondence between the CMC and the OLT.
  • an embodiment of the present invention provides a cable network system, where the system includes a plurality of OLT devices, a plurality of cable media converters CMC, a plurality of cable modems CM, and at least one cable media converter CMC controller;
  • Each OLT device is connected to a CMC through an optical fiber, and each CMC is connected to a CM through a cable, and the CMC controller is connected to at least two OLT devices;
  • Each of the CMC controllers is the CMC controller described above.
  • the CMC controller can find the corresponding OLT according to the CMC identifier in the received message, and then send the configuration file to the corresponding OLT for configuration.
  • a CMC controller can be used to manage CMC under multiple OLTs to realize device sharing, which saves the cost of network hardware.
  • FIG. 1 is a schematic architectural diagram of a D-CCAP system.
  • FIG. 2 is a schematic architectural diagram of a D-CCAP system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a CMC management method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a CMC controller according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another CMC controller according to an embodiment of the present invention.
  • FIG. 1 For ease of understanding, an exemplary diagram of a network architecture capable of implementing the communication method of the embodiment of the present invention will be described first. It should be understood that the embodiment of the present invention is not limited to the D-CCAP network architecture shown in FIG. 1.
  • the apparatus in FIG. 1 may be hardware, or may be functionally divided software or a structure of the foregoing.
  • the D-CCAP network architecture shown in Figure 1 includes an Optical Line Terminal (OLT), a Cable Media Converter (CMC), a Cable Modem (CM), and a Custer Premises Equipment (CPE).
  • OLT Optical Line Terminal
  • CMC Cable Media Converter
  • CM Cable Modem
  • CPE Custer Premises Equipment
  • the OLT is used to connect a Hybrid Fiber Coaxial (HFC) to an upper layer network (such as the Internet).
  • HFC Hybrid Fiber Coaxial
  • the data from the upper layer network is converted into an optical signal for transmission on the optical fiber; in the uplink direction, the optical signal is terminated and then connected to the upper layer network.
  • the CMC is used to perform the functions of converting an optical signal into an electrical signal and converting the digital signal into an analog signal.
  • CM is mainly used for cable TV networks for data transmission. It is connected between the cable TV cable socket of the user's home and the Internet access device (such as the CPE in Figure 1), and the other end connected to it through the cable TV network is at the cable television station, and the other end can be called the front end. Or Head-End.
  • the CM modulates the uplink data to be uploaded by the user, transmits it to the Internet, etc., and demodulates the downlink data from the Internet and the like and transmits it to the Internet access device.
  • CPEs are also known as client terminal devices, CPE client terminal devices, such as tablets, personal computers, landline phones, or other Internet devices.
  • a common business process in a D-CCAP network is that service signals from the network side (including various interactive video, data, and voice services) are first converted into optical signals on the OLT and transmitted on the optical fiber; after the CMC, The CMC converts the optical signal into an electrical signal and sends it to the user terminal through the cable. After the user terminal, the CM modulates and demodulates the electrical signal and finally transmits it to each user terminal.
  • service signals from the network side including various interactive video, data, and voice services
  • the CMC manages the CM and the OLT manages the CMC.
  • a CMC controller (CMC Controller) is provided in the OLT to manage the CMC.
  • L2VPN layer 2 virtual private network
  • the L2VPN configuration file is downloaded from the Trivial File Transfer Protocol (TFTP) server and uploaded to the CMC.
  • TFTP Trivial File Transfer Protocol
  • the CMC obtains the L2VPN configuration file sent by the CM and then passes it to the CMC controller in the OLT.
  • the OLT The VPN configuration is performed according to the L2VPN configuration file received by the CMC controller to complete the L2VPN service requested by the CM.
  • the CMC controller is integrated in the OLT, and one OLT is configured with a CMC controller.
  • many CMC controllers are configured, resulting in waste of resources.
  • each communication between the CMC controller and the CMC requires the CMC controller to communicate with the OLT internal communication protocol and the external communication protocol between the OLT and the CMC, and the process is cumbersome. This conversion process can easily lead to incompatibility between OLT and CMC from different manufacturers.
  • the present invention describes a new D-CCAP architecture or processing method by different embodiments.
  • One embodiment of the present invention provides a new cable network architecture.
  • the new architecture separates the CMC controller into a single device, and a CMC controller can be used as shown in FIG. Connect to multiple OLTs to manage multiple CMCs through the management channel.
  • the plurality of CMCs respectively correspond to different OLTs.
  • the CMC controller can pass optical fiber or other species
  • the line of the class is connected to the OLT. It should be noted that the number of OLTs and CMCs in Figure 1 should not limit the invention.
  • the corresponding relationship between the CMC and the OLT needs to be maintained on the CMC controller.
  • the CMC controller After the CMC obtains the configuration file sent by the CM managed by the CMC, the CMC controller is sent to the CMC controller through the management channel, and the CMC controller forwards the configuration file to the corresponding file according to the corresponding relationship between the CMC and the OLT.
  • the OLT after the corresponding OLT receives the configuration file, performs configuration.
  • FIG. 3 A schematic flowchart of a CMC management method according to an embodiment of the present invention is shown in FIG. 3. It should be understood that FIG. 3 illustrates steps or operations of the method, but these steps or operations are merely examples, and embodiments of the present invention may perform other operations or variations of the various operations in FIG. Moreover, the various steps in FIG. 3 may be performed in a different order than that presented in FIG. 3, and it is possible that not all operations in FIG. 3 are to be performed.
  • the CMC receives the first message that is sent by the CM, where the first message includes the configuration file information of the CM.
  • the first message packet conforms to a protocol message format such as NetConf/RestConf.
  • the configuration file information of the CM refers to configuration information of parameters required when the CM goes online.
  • the identifier of the CMC is used to uniquely identify the CMC.
  • the management channel between the CMC and the CMC controller is transparently transmitted through the OLT and is transparently transmitted in the OLT, and the CMC controller cannot directly know which OLT is transparently transmitted from.
  • the identifier of the CMC may be the MAC address of the CMC, or other identifier that uniquely identifies the CMC.
  • the constructing the second message includes: the CMC parsing the received first message, and then The message is constructed according to the management channel communication protocol between the CMC and the CMC controller, and the identifier of the CMC is added in the constructed message.
  • the CMC controller determines, according to the locally stored correspondence between the OLT and the CMC (ie, the connection relationship), the identifier identified by the identifier in the second message packet.
  • the OLT corresponding to the CMC, and the configuration file information in the second message packet Sent to the determined OLT.
  • the correspondence between the CMC and the OLT is a one-to-one relationship, and the correspondence between the CMC controller and the OLT is a many-to-one relationship.
  • the correspondence between the CMC and the OLT is stored in a CMC controller in a tabular form, and the table indicates that different CMCs respectively correspond to different OLTs, so that the CMC controller can be based on the CMC in the second message packet.
  • the identifier finds the corresponding OLT for control. It should be understood by those skilled in the art that the table is only a representation of the corresponding relationship, and is not limited to the embodiment of the present invention, and the corresponding relationship may be saved by other forms.
  • the method further includes S370, after the determined OLT receives the profile information and performs adaptive configuration. In this way, the data path between the CM and the OLT can be opened, so that the uplink and downlink service data transmission can be realized between the CM and the OLT.
  • the CMC controller acquires the CMC information respectively connected to each OLT from all the OLTs connected to the CMC controller, and forms a correspondence between the CMC and the OLT; and saves.
  • the CMC controller is placed outside the OLT and connected to a plurality of OLTs. Since the correspondence table between the CMC and the OLT is saved on the CMC controller, after the CMC acquires the configuration file of a CM managed by itself, the identifier of the CMC is added to the packet that sends the configuration file to the CMC controller. The CMC controller can find the corresponding OLT according to the CMC identifier in the received message, and then send the configuration file to the corresponding OLT for configuration. In this way, a CMC controller can be used to manage CMC under multiple OLTs to realize device sharing, which saves the cost of network hardware.
  • the CMC controller 400 includes a sending module 410, a processing module 420, a receiving module 430, and a saving module 440.
  • the receiving module 430 is configured to receive a message message sent from the CMC, where the message message includes an identifier of the CMC and configuration file information of a CM; the identifier of the CMC is used to uniquely identify the CMC; wherein the CM and the CMC are connected by a cable;
  • the saving module 440 is configured to save a correspondence between the OLT and the CMC.
  • the correspondence between the CMC and the OLT is a one-to-one correspondence.
  • the processing module 420 is configured to determine, according to the correspondence between the OLT and the CMC saved by the saving module 440, the identifier identified by the identifier in the message packet received by the receiving module 430.
  • the sending module 410 is configured to send configuration file information of the CMs in the message packet to the determined OLT.
  • the processing module 420 can be a processor or a controller, or can be a general-purpose processor, a digital signal processor (English: digital signal processor, abbreviated as DSP), an application-specific integrated circuit (abbreviation: ASIC).
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • Field programmable gate array (English: field programmable gate array, abbreviated: FPGA) or other programmable logic device, transistor logic device, hardware component or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the receiving module 430 and the sending module 410 may be respectively a receiving interface part and a transmitting interface part in a transceiver, or may be a receiving interface part and a transmitting interface part of the transceiver circuit.
  • the storage module 440 can be any medium that can store program codes, such as a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
  • FIG. 5 is a schematic structural diagram of a CMC controller 500 according to still another embodiment of the present invention.
  • the CMC controller 500 includes a memory 510, a processor 520, a receiver 530, and a transmitter 540.
  • the memory 510 is configured to store a program.
  • the processor 520 is configured to execute a program stored by the memory 510.
  • the processor 520 executes the program stored in the memory 510, the processor 520 is configured to invoke the receiver 530 to receive a message message from the CMC, the message message containing the identifier of the CMC and a CM. Profile information, the CM being connected to the CMC via a cable.
  • the memory 510 is further configured to save a correspondence between the OLT and the CMC.
  • the correspondence between the CMC and the OLT is a one-to-one correspondence.
  • the processor 520 is further configured to determine, according to the correspondence between the OLT and the CMC saved by the saving module 440, an OLT corresponding to the identifier of the CMC in the message message received by the receiver 530; and the calling transmitter 540
  • the configuration file information of one CM in the message message is sent to the determined OLT.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Computer Networks & Wireless Communication (AREA)
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  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本发明提供了一种电缆媒质转换器CMC管理方法；该方法包括：所述CMC控制器从管理通道接收CMC发送过来的第二消息报文，所述第二消息报文包含所述CMC的标识符和一个CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；所述CMC控制器根据本地保存的OLT与CMC的对应关系，确定与所述第二消息报文中标识符所标识的所述CMC对应的OLT，将所述第二消息报文中的配置文件信息发送给所述确定的OLT；同时还提供了一种CMC控制器和系统；利用本发明，就能用一个CMC控制器管理多个OLT下的CMC，实现设备共享，节省了网络硬件的成本。

Description

电缆媒质转换器管理方法、装置和系统 技术领域
本发明涉及通信领域，尤其涉及一种电缆媒质转换器(Cable Media Converter,CMC)管理方法、装置和系统。
背景技术
电缆数据服务接口规范(Data over Cable System Interface Specification，DOCSIS)主要应用在计算机网与有线电视网之间，以及有线电视前端与用户之间实现数据包的传输。DOCSIS作为北美、欧洲有线运营商和中国广电主要的双向宽带接入技术，已经得到广泛应用。由于4K、高清、互动等视频业务和数据业务的需求，有线网络运维管理以及节能减排等方面的需求，需要DOCSIS技术能够提供更高的接入速率、支持更多的用户。现有技术中基于DOCSIS提出了分布式系统进行数据传输。
分布式融合有线接入平台(Distributed Converged Cable Access Platform，D-CCAP)，基于电缆，通过数字调制技术来承载有线电视业务、以太网业务和其他各种综合业务，能向有线电视网用户提供速率更高的宽带接入业务。
发明内容
本发明提供的电缆媒质转换器管理方法、装置和系统，能够节省网络资源。
第一方面，本发明实施例提供了一种电缆媒质转换器CMC管理方法，包括：
CMC控制器从管理通道接收CMC发送过来的消息报文，所述第二消息报文包含所述CMC的标识符和一个CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；所述CM与所述CMC通过电缆连接；
所述CMC控制器根据本地保存的OLT与CMC的对应关系，查找到所述标识符所标识的所述CMC对应的OLT，将所述消息报文中的配置文件信息发送给所述确定的OLT。
结合第一方面，在第一种可能的实施方式中，所述OLT与CMC的对应关系是一对一的关系，所述CMC控制器和多个OLT相连。
结合第一方面或第一种可能的实施方式，在第二种可能的实施方式中，所述CMC控制器预先从与所述CMC控制器连接的所有OLT获取到每个OLT分别连接的CMC信息，形成所述CMC与OLT的对应关系。
第二方面，本发明实施例提供一种电缆媒质转换器CMC控制器，所述CMC控制器包括发送模块、处理模块、接收模块和保存模块；
所述接收模块，用于接收来自CMC发送过来的消息报文，所述消息报文包含了所述CMC的标识符和一个CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；
所述保存模块，用于保存OLT与CMC的对应关系；
所述处理模块，用于根据所述保存模块保存的OLT与CMC的对应关系，确定与所述接收模块接收到的消息报文中标识符所标识的所述CMC对应的OLT；
所述发送模块，用于将所述消息报文中的所述CM的配置文件信息发送给所述确定的OLT。
结合第二方面，在第一种可能的实施方式中，所述OLT与CMC的对应关系是一对一的关系，所述CMC控制器和多个OLT相连。
结合第二方面或第一种可能的实施方式，在第二种可能的实施方式中，所述保存模块预先从与所述CMC控制器连接的所有OLT获取到每个OLT分别连接的CMC信息，形成所述CMC与OLT的对应关系。
第三方面，本发明实施例提供一种电缆网络系统，所述系统包括多个OLT设备、多个电缆媒质转换器CMC、多个电缆调制解调器CM，和至少一个电缆媒质转换器CMC控制器；
所述每个OLT设备通过光纤和一个CMC相连，每个CMC通过电缆和一个CM相连，所述CMC控制器和至少2个OLT设备相连；
其中每个所述CMC控制器是上述的CMC控制器。
利用本实施例的方案，CMC控制器就可以根据接收报文中的CMC标识符查找到对应的OLT，然后将配置文件发送给对应的OLT进行配置。这样就能用一个CMC控制器管理多个OLT下的CMC，实现设备共享，节省了网络硬件的成本。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是一种D-CCAP系统的示意性架构图。
图2是本发明实施例的一种D-CCAP系统的示意性架构图。
图3是本发明实施例的一种CMC管理方法的示意性流程图。
图4是本发明实施例的一种CMC控制器的示意性结构图。
图5是本发明实施例的又一种CMC控制器的示意性结构图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为了便于理解，先从整体上描述能够实施本发明实施例的通信方法的网络架构的示例图。应理解，本发明实施例并不限于图1所示的D-CCAP网络架构中，此外，图1中的装置可以是硬件，也可以是从功能上划分的软件或者以上二者的结构。
图1所示的D-CCAP网络架构包括光线路终端(Optical Line Terminal,OLT)，电缆媒质转换器CMC，电缆调制解调器(Cable Modem,CM)和用户驻地设备(Custrom Premises Equipment,CPE)，其中从OLT到CPE的方向称为下行方向，CPE到OLT的方向称为上行方向。
OLT用于将光纤电缆混合网(Hybrid Fiber Coaxial,HFC)接入上层网络(如互联网)。其中在下行方向上，将来自上层网络的数据转化为光信号以在光纤上传输；在上行方向上，将光信号进行终结处理后接入上层网络。
CMC用于完成将光信号转换为电信号功能和将数字信号转换为模拟信号功能。
CM主要用于有线电视网进行数据传输。它是串接在用户家的有线电视电缆插座和上网设备(如图1中的CPE)之间的,而通过有线电视网络与之相连的另一端是在有线电视台，该另一端可以称为前端或头端(Head-End)。CM把用户要上传的上行数据调制之后向互联网等传送，将来自互联网等的下行数据解调后传输给上网设备。
CPE也称为客户终端设备CPE客户终端设备，如平板电脑、个人电脑、固定电话或其他的上网设备。
在D-CCAP网络中常见业务流程是，来自网络侧的业务信号(包括各种交互式视频、数据和语音业务等电信号)在OLT上先转换成光信号在光纤上传输；到CMC后，CMC把光信号转换成电信号，通过电缆送到用户端；到用户端后，CM将电信号进行调制解调，并最终发送到各个用户终端。
在所述D-CCAP网络中，CMC对CM进行管理，而OLT对CMC进行管理。其中在OLT内设置有一个CMC控制器(CMC Controller)来实现对CMC进行管理。
下面以层2虚拟专用网络(Layer 2Virtual Private Network,L2VPN)业务为例进行说明。L2VPN的配置文件是CM从简单文件传输协议(Trivial File Transfer Protocol，TFTP)服务器下载下来的，然后上传给CMC，CMC获取CM发送的L2VPN配置文件后，然后传递给OLT中的CMC控制器，OLT根据CMC控制器接收到的L2VPN配置文件进行VPN配置，以完成CM请求的L2VPN业务。
但传统方案中CMC控制器是集成在OLT内的，一个OLT配置一个CMC控制器，网络中很多OLT的情况下，就配置了很多CMC控制器，造成资源浪费。并且，CMC控制器与CMC之间的每次通信都需要CMC控制器与OLT内部通信协议、以及OLT和CMC之间的外部通信协议进行转换，过程比较繁琐。这个转化过程很容易导致不同厂家的OLT和CMC不兼容。为解决以上提到的资源浪费的问题，本发明通过不同实施例来描述一种新的D-CCAP架构或处理方法。
本发明一个实施例提供了一种新的电缆网络架构，如图2所示，相对于图1所示的架构，该新的架构将CMC控制器独立成一个单独的设备，一个CMC控制器可以连接到多个OLT，通过管理通道管理多个CMC。所述多个CMC分别对应不同的OLT。其中所述CMC控制器可以通过光纤或者其他种 类的线路连接到OLT。应注意，图1中的OLT和CMC的数量不应对本发明构成限制。
为实现管理多个CMC，在CMC控制器上需要维护CMC与OLT的对应关系。这样在CMC获取自己管理的CM发送的配置文件后，添加上CMC的唯一标识符后，通过管理通道发送给CMC控制器，CMC控制器根据CMC与OLT的对应关系，将配置文件然后转发给对应的OLT，所述对应的OLT接收到配置文件后进行配置。
本发明一个实施例的CMC管理方法的示意性流程图如图3所示。应理解，图3示出了方法的步骤或操作，但这些步骤或操作仅是示例，本发明实施例还可以执行其他操作或者图3中的各个操作的变形。此外，图3中的各个步骤可以按照与图3呈现的不同的顺序来执行，并且有可能并非要执行图3中的全部操作。
S310，CMC接收CM发送的第一消息报文，所述第一消息报文包含了CM的配置文件信息。
具体地，所述第一消息报文符合NetConf/RestConf等协议消息格式。所述CM的配置文件信息是指CM上线的时候所需要的参数的配置信息。
S330，所述CMC识别出所述第一消息报文中的所述配置文件信息后，构建第二消息报文，所述第二消息报文包含所述配置文件信息和所述CMC的标识符；并将所述第二消息报文通过管理通道发送给CMC控制器。
所述CMC的标识符用于唯一标识所述CMC。
其中CMC与CMC控制器之间的管理通道是经过OLT，并在所述OLT中透传的，并且CMC控制器不能直接获知是从哪一个OLT透传过来的。
作为一个实施例，所述CMC的标识符可以是CMC的MAC地址，或者其他能唯一标识CMC的标识。
作为一个实施例，所述CMC识别出所述第一消息报文中的所述配置文件信息后，构建第二消息报文包括：所述CMC对接收到的第一消息报文进行解析，然后按照所述CMC与CMC控制器之间的管理通道通信协议构建报文，并在构建的报文中添加所述CMC的标识符。
S350，所述CMC控制器接收到所述第二消息报文后，根据本地保存的OLT与CMC的对应关系(即连接关系)，确定与所述第二消息报文中标识符所标识的所述CMC对应的OLT，将所述第二消息报文中的配置文件信息 发送给所述确定的OLT。
其中，所述CMC与OLT的对应关系是一对一的关系，所述CMC控制器与OLT的对应关系是多对一的关系。一般地，所述CMC与OLT的对应关系以表格形式保存在CMC控制器中，所述表格体现了不同的CMC分别对应不同的OLT，从而CMC控制器可以根据第二消息报文中的CMC的标识符找到对应的OLT，来进行控制。本领域普通技术人员应该理解，表格只是一种对应关系的表现形式，对本发明实施例不构成限定，也可以利用其他形式对上述对应关系进行保存。
进一步该方法还包括S370，所述确定的OLT接收到所述配置文件信息后进行适应性配置。这样就能实现打通CM到OLT之间的数据通路，使CM到OLT之间能实现上下行的业务数据传输。
更进一步地，在步骤S350之前，所述CMC控制器从与所述CMC控制器连接的所有OLT获取到每个OLT分别连接的CMC信息，形成所述CMC与OLT的对应关系；并保存。
利用本发明实施例，通过将CMC控制器设置在OLT之外，并连接到多个OLT。由于在CMC控制器上保存了CMC与OLT的对应关系表，这样在CMC获取自己管理的一个CM的配置文件后，在将所述配置文件发送给CMC控制器的报文中添加CMC的标识符，CMC控制器就可以根据接收报文中的CMC标识符查找到对应的OLT，然后将配置文件发送给对应的OLT进行配置。这样就能用一个CMC控制器管理多个OLT下的CMC，实现设备共享，节省了网络硬件的成本。
本发明一个实施例提供一种CMC控制器，如图4所示，该CMC控制器400包括发送模块410、处理模块420、接收模块430和保存模块440。
所述接收模块430，用于接收来自CMC发送过来的消息报文，所述消息报文包含了所述CMC的标识符和一个CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；其中所述CM与所述CMC通过电缆(Cable)连接；
所述保存模块440，用于保存OLT与CMC的对应关系。所述CMC与OLT的对应关系是一一对应的关系。
所述处理模块420，用于根据所述保存模块440保存的OLT与CMC的对应关系，确定与所述接收模块430接收到的消息报文中标识符所标识的所 述CMC对应的OLT。
所述发送模块410，用于将所述消息报文中的所述个CM的配置文件信息发送给所述确定的OLT。
处理模块420可以是处理器或控制器，也可以是通用处理器，数字信号处理器(英文：digital signal processor，缩写：DSP)，专用集成电路(英文：application-specific integrated circuit，缩写：ASIC)，现场可编程门阵列(英文：field programmable gate array，缩写：FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。接收模块430和发送模块410可以分别是收发器(transceiver)中接收接口部分和发送接口部分，也可以是收发电路的接收接口部分和发送接口部分。保存模块440可以是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。
图5为本发明又一实施例的CMC控制器500的示意性结构图。CMC控制器500包括存储器510、处理器520、接收器530和发送器540。
存储器510，用于存储程序。
处理器520，用于执行所述存储器510存储的程序。
当所述处理器520执行所述存储器510存储的程序时，处理器520用于调用接收器530接收来自CMC的消息报文，所述消息报文包含了所述CMC的标识符和一个CM的配置文件信息，所述CM与所述CMC通过电缆(Cable)连接。
所述存储器510还用于保存OLT与CMC的对应关系。所述CMC与OLT的对应关系是一一对应的关系。
所述处理器520还用于根据所述保存模块440保存的OLT与CMC的对应关系，确定与接收器530接收到的消息报文中的CMC的标识符对应的OLT；以及调用发送器540将所述消息报文中的一个CM的配置文件信息发送给所述确定的OLT。
其中，本实施例中的各模块的功能描述可以援引到上述方法实施例涉及的各步骤的所有相关内容，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
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，可以通过其他的方式实现。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，机械或其他的形式。
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，在本发明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。
所述功能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，本发明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)执行本发明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，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (9)

  1. 一种电缆媒质转换器CMC管理方法，其特征在于，包括：
    CMC控制器从管理通道接收CMC发送过来的第二消息报文，所述第二消息报文包含所述CMC的标识符和一个电缆调制解调器CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；
    所述CMC控制器根据本地保存的光线路终端OLT与CMC的对应关系，确定与所述第二消息报文中标识符所标识的所述CMC对应的OLT，将所述第二消息报文中的配置文件信息发送给所述确定的OLT。
  2. 根据权利要求1所述的方法，其特征在于，所述OLT与CMC的对应关系是一对一的关系，所述CMC控制器和多个OLT相连。
  3. 根据权利要求1或2所述的方法，其特征在于，所述CMC控制器预先从与所述CMC控制器连接的所有OLT获取到每个OLT分别连接的CMC信息，形成所述CMC与OLT的对应关系。
  4. 根据权利要求1所述的方法，其特征在于，所述CM的配置文件信息来自从CM发出的第一消息报文。
  5. 根据权利要求1至4任一所述的方法，其特征在于，该方法还包括，所述确定的OLT接收到所述配置文件信息后进行适应性配置。
  6. 一种电缆媒质转换器CMC控制器，其特征在于，所述CMC控制器包括发送模块、处理模块、接收模块和保存模块；
    所述接收模块，用于接收来自CMC发送过来的消息报文，所述消息报文包含了所述CMC的标识符和一个电缆调制解调器CM的配置文件信息；所述CMC的标识符用于唯一标识所述CMC；
    所述保存模块，用于保存光线路终端OLT与CMC的对应关系；
    所述处理模块，用于根据所述保存模块保存的OLT与CMC的对应关系，确定与所述接收模块接收到的消息报文中标识符所标识的所述CMC对应的OLT；
    所述发送模块，用于将所述消息报文中的所述CM的配置文件信息发送给所述确定的OLT。
  7. 根据权利要求6所述的CMC控制器，其特征在于，所述OLT与CMC的对应关系是一对一的关系，所述CMC控制器和多个OLT相连。
  8. 根据权利要求6或7所述的CMC控制器，其特征在于，所述保存模 块预先从与所述CMC控制器连接的所有OLT获取到每个OLT分别连接的CMC信息，形成所述CMC与OLT的对应关系。
  9. 一种电缆网络系统，其特征在于，所述系统包括多个光线路终端OLT设备、多个电缆媒质转换器CMC、多个电缆调制解调器CM，和至少一个电缆媒质转换器CMC控制器；
    所述每个OLT设备通过光纤和一个CMC相连，每个CMC通过电缆和一个CM相连，所述CMC控制器和至少2个OLT设备相连；
    其中每个所述CMC控制器是权利要求6、7或8所述的CMC控制器。
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