WO2007131430A1 - Système à réseau optique passif, procédé d'acquisition de la capacité du dispositif dépendant par le dispositif de commande principal - Google Patents

Système à réseau optique passif, procédé d'acquisition de la capacité du dispositif dépendant par le dispositif de commande principal Download PDF

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Publication number
WO2007131430A1
WO2007131430A1 PCT/CN2007/001446 CN2007001446W WO2007131430A1 WO 2007131430 A1 WO2007131430 A1 WO 2007131430A1 CN 2007001446 W CN2007001446 W CN 2007001446W WO 2007131430 A1 WO2007131430 A1 WO 2007131430A1
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WIPO (PCT)
Prior art keywords
control device
main control
slave device
management capability
capability information
Prior art date
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PCT/CN2007/001446
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English (en)
French (fr)
Inventor
Lehong Niu
Hai Gao
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CN200780000415.7A priority Critical patent/CN101322334B/zh
Publication of WO2007131430A1 publication Critical patent/WO2007131430A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1694Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q11/0067Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/0001Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062Network aspects
    • H04Q2011/0079Operation or maintenance aspects

Definitions

  • the present invention relates to optical network technologies, and more particularly to a passive optical network system for use in an optical access network and a method for the primary control device in the system to obtain the capabilities of the dependent device.
  • Current broadband access technologies are mainly classified into copper access technologies (e.g., various DSL technologies) and optical access technologies.
  • An access network implemented by an optical access technology is called an optical access network (OAN).
  • PON passive optical network
  • PON technology is a point-to-multipoint optical access technology.
  • PON system. Figure 1 shows:
  • the PON system comprises an OLT (Optical Line Terminal), an ODN (Optical Distribute Network), and an ONU (Optical Network Unit), wherein the OLT provides a network side interface SNI for the OAN, and connects one Or ODN; ODN is a passive optical splitting device.
  • the ODN transmits the downlink data of the OLT to each ONU through optical branching.
  • the 0DN transmits the uplink data of the ONU to the OLT through convergence.
  • the ONU provides a user-side interface for the OAN. (the UNI), while the ODN is connected, while if the ONU provides a user interface function, such as the ONU provides Ethernet user port or POTS (Plain Old Telephone Service) subscriber ports, is called ONT (Optical Network Termination) 0
  • PON technology defines a configuration transmission channel OMCI (ONU) in its GPON standard.
  • the OMCI channel is established between the OLT and the ONT, and the ONT establishes an OMCI channel between the ONT and the OLT when registering with the OLT.
  • OMCI is a master-slave management protocol
  • OLT is the master control device
  • ONT is the slave device
  • OLT controls the OLT through the OMCI channel.
  • the OMCI protocol abstracts various data of the OLT management ONT into a protocol-independent management information base (rotocol-independent management information base).
  • the basic information unit of the management information base is a management entity (ME), according to the ONT.
  • ME management entity
  • OMCI defines the OLT to control the various MEs of the ONT, and the ONT implements the configuration management functions of each ME under the control of the OLT.
  • the ONT When the ONT is initialized or the hardware is changed (such as a card is inserted or removed), the ONT automatically determines the number of ME instances and the specific attribute values of each ME based on its own hardware configuration. The way this ME is generated is mainly related to the ONT hardware configuration.
  • the OLT notifies the ONT to create an ME instance through the Create message of the OMCI.
  • the number of created ME instances and the specific attribute values of each ME are configured by the OLT.
  • This ME is generated mainly in relation to service configuration. The requirements of the various management entities are defined.
  • the ME class is numbered in the GPON protocol to facilitate the OLT configuration.
  • the OLT cannot automatically know whether the ONT supports specific before configuring the ONT.
  • Some ME The OLT can only deliver the create message corresponding to the ME of the service one by one. If the return fails, the certificate is not supported. This method of trying to determine the ONT service capability is not convenient for interworking between the OLT and the ONT device, and is not conducive to the OLT's further control of the ONT. Summary of the invention
  • the embodiment of the invention provides a passive optical network system and a method for obtaining the capability of the slave device by the master control device in the system, which is used to solve the problem that the master control device (OLT) cannot be known before configuring the slave device (ONT) in the prior art.
  • OLT master control device
  • ONT slave device
  • the problem of supporting the service capabilities of the slave devices causes inconvenience between the two.
  • the method of the embodiment of the invention comprises the following steps:
  • the slave device generates its supported management capability information according to its own hardware configuration;
  • the main control device obtains management capability information supported by the slave device
  • the embodiment of the present invention further provides a passive optical network system, including a main control device and at least one slave device controlled by the main control device, where the slave device includes:
  • a main control instruction receiving unit configured to receive an instruction sent by the main control device
  • a management capability information generating unit configured to generate management capability information according to a hardware configuration of the slave device itself
  • the information reporting unit is configured to report the management capability information generated by the management capability information generating unit to the main control device according to the instruction received by the main control instruction receiving unit.
  • the solution of the embodiment of the present invention is to report the management capability of the ONT support management capability in the ONT mode by the OLT.
  • any management protocol is adopted between the OLT and the ONT, such as the GPON protocol or the EPON protocol, the ONT can be configured according to its own hardware.
  • the management capability information describing the various MEs supported by the slave device is generated, and the OLT is informed of the information to solve the defects in the prior art.
  • the method of the embodiment of the invention can speed up the ONT service issuance time, and quickly locates the incompatibility between the OLT and the ONT.
  • Embodiment 1 is a flowchart of Embodiment 1 of the method of the present invention.
  • Embodiment 2 is a flowchart of Embodiment 2 of the method of the present invention.
  • 3C is a flowchart of Embodiment 3 of the method of the present invention.
  • An embodiment of the present invention provides a method for a master control device to obtain a capability of a slave device, which is used in a passive optical network system, as shown in FIG. 2, and includes the following steps:
  • the slave device generates its supported management capability information (ME Support List ME) according to its own hardware configuration, where the management capability information includes the number of management entities and the number corresponding to each management entity.
  • ME Support List ME management capability information
  • the main control device obtains management capability information supported by the slave device.
  • the master control device can configure the slave device according to the management capability information supported by the slave device to speed up the ONT service issuance time, or locate the incompatibility between the OLT and the ONT.
  • an embodiment of the present invention will be described with the OLT as the main control device and the ONT as the slave device.
  • the method of the embodiment of the present invention may be that the slave device automatically generates the management capability information according to its own hardware configuration when the slave device of the passive optical network system performs initialization or the slave device hardware increases or decreases, or before or during configuration. That is, the ME capabilities supported by all the slave devices are numbered.
  • the master control device can obtain the management capability information currently generated by the slave device in three ways, that is, the ME class set supported by the slave device. , hereinafter referred to as ME:
  • the slave device generates the ME and reports the generated ME to the master device.
  • the main control device directly performs a Get operation in the initialization phase to acquire the ME generated by the slave device;
  • the main control device issues an instruction to the slave device to report the supported ME.
  • the slave device responds to the command, and the ME generated by the slave device reports to the master control device.
  • the information is transmitted by the passive optical splitting device between the slave device and the master control device, and the ME reported by the slave device can be performed by the B Upload or Get Response message of the OMCI standard, and the main control device ( OLT) can receive one of the two messages Solve the ME collection currently generated by the ONT.
  • the method of the embodiment of the present invention enables a slave device to create a special ME class, which is used to describe the support capabilities of the slave device to various MEs.
  • the host control device Create message can create N types of MEs.
  • the slave device creates such a special ME, and the master control device obtains the special ME class by one of the above three methods, and the master control device can understand the slave device pair by analyzing the content of the ME class.
  • the support capabilities of various MEs can then be targeted in the process of configuring the service to prevent the master control device from issuing Create messages that are incompatible with the slave devices.
  • the slave device when there is one master control device and multiple slave devices (A, B, C), when the slave device initialization or the hardware of the slave device changes, the slave device generates a new ME according to its own hardware configuration, and the ME uses To describe the ability of the slave device to support various MEs.
  • the slave device A supports the Ethernet port, and the Ethernet port attribute of the slave device needs to be configured under the control of the master control device.
  • the slave device A should support the ME of the Ethernet port configuration type, and the Ethernet port configuration type in the GPON protocol.
  • the ME Physical Path Termination Point Ethernet UNI
  • the slave device can use one of the above three methods to make the master control device know that the slave device supports the ME configured by the Ethernet port, and the master control device can be dependent on the slave. Configure the attributes of the Ethernet port of the device.
  • the slave devices B and C support the POTS (Plain Old Telephone Service) port, and the POTS port configuration type ME class (Physical Path Termination Point POTS UNI) number is 53, so the slave devices B and C should Supports ME class number 53.
  • POTS Packet Old Telephone Service
  • ME class Physical Path Termination Point POTS UNI
  • slave device A supports the creation of a Multicast GEM Interworking Termination Point type (refer to ITU-T G.984.4 protocol) ME from the OLT, number 281, and slave devices B and C do not support the creation of this type of ME.
  • the ability of the slave devices to be different from the device C may be caused by different device models or different manufacturers, and the OLT cannot predict.
  • the slave device A supports the creation of the ME class with the number 281, and the slave devices B and C do not support the creation of the number 281.
  • ME class is referred to ITU-T G.984.4 protocol
  • all the slave devices (A, B, and C) generate a special ME class, that is, ME Support List ME, and the number is assumed to be 400.
  • the slave devices 8, B, and C all support the ME class numbered 400.
  • the ME class numbered 400 is defined in more detail as follows.
  • the content of the ME is a collection of ME class numbers that the ONT supports and supports.
  • the specific attributes should include a total and list data structure. In the list data structure, the ME number of the ONT support and support creation is listed.
  • the main control device can obtain the ME sets of the slave devices A, B, and C through the above three methods, as shown in the following table.
  • Slave device number ME set description
  • Subsidiary device A No. 400 ME Support List ME, ⁇ Support ME class number is
  • Subordinate device B No. 400 ME Support List ME, ⁇ Support ME class is 10,
  • the main control device obtains the information shown in the above table, that is, knows the support capability information of the slave devices (A, B, C) for various MEs, and also knows the hardware capabilities and service support capabilities of the slave devices, so as to understand the slave devices. Easy to deploy and configure business attributes. For example, the master control device knows that the slave device A supports Ethernet ports and multicast service capabilities (corresponding to Multicast GEM Interworking Termination Point ME), and slave devices B and C support POTS ports and services.
  • the slave device A supports Ethernet ports and multicast service capabilities (corresponding to Multicast GEM Interworking Termination Point ME)
  • slave devices B and C support POTS ports and services.
  • A supports Ethernet ports
  • B and C support POTS ports.
  • Users can configure the attributes of the Ethernet port for A, such as auto-negotiation, rate selection (10M or 100M), and configure the attributes of the POTS port, such as load impedance and gain, for B and C.
  • the master control device parses the user command and finds that the Multicast GEM Interworking Termination Point ME numbered 281 needs to be created on the slave devices B and C, and the B and C Not included in the ME support capability set 281, the main control device can directly prompt the user, and the slave devices B and C do not support the multicast service. It can be seen from the above description that the method of the embodiment of the present invention obtains the ME information supported by the slave device through the master control device, thereby ensuring the accuracy of the service execution, and enabling the master control device to clearly understand the services supported by the slave device.
  • the first mode a as shown in FIG. 3A, the ONT actively reports the attribute value of the ONT ME capability set in the system initialization phase (such as receiving the OLT MIB Reset message) (ie, the ONT supports the ME total number and the ME class number list. , can refer to the above table).
  • the second mode b directly acquires the attribute of the ONT ME capability set by the main control device through the Get operation.
  • the main control device directly reads the ME capability set from the slave device, and the first In the same way, the method can also achieve the same technical effect.
  • the third mode c as shown in Figure 3C, the main control device (OLT) requires the slave device (ONT) to start B upload.
  • the specific processing flow is:
  • the OLT informs the ONT to obtain the value of the ME Support List ME through the GET command, and the parameters are delivered, including the ME Support List ME class number and the instance number.
  • the ONT responds to the OLT GET command and reports the ME Support List ME value to the OLT.
  • the method in the embodiment of the present invention can speed up the service release time of the slave device, and at the same time, because the master control device can know the supported ME type of the slave device, the problem that the master control device and the slave device are incompatible can be quickly located. .
  • the main control device can find some compatibility problems by comparing its supported ME list with the list of MEs supported by the slave device. If there is no method in the embodiment of the present invention, the main control device must issue a message such as Create, and the slave device fails to respond to the diagnosis, and the communication fault and the ONT fault are eliminated before the compatibility problem is confirmed.
  • the embodiment of the present invention further provides a passive optical network system, as shown in FIG. 4, including a main control device 41 and a plurality of slave devices 42, and the slave device 42 includes:
  • the main control instruction receiving unit 421 is configured to receive an instruction sent by the main control device 41.
  • the management capability information generating unit 422 is configured to generate management energy according to the hardware configuration of the slave device itself.
  • the information reporting unit 423 is configured to upload the management capability information generated by the management capability information generating unit 422 to the main control device 41 according to the instruction received by the main control instruction receiving unit 421.
  • the main control device 41 includes at least:
  • the management capability reading unit 411 is configured to read the management capability information generated by the slave device 42.
  • the main control device 41 further includes:
  • the management capability receiving unit 412 is configured to receive management capability information reported by the information reporting unit 423 of the slave device;
  • the main control command transmitting unit 413 is for issuing an instruction to control the slave device 41.
  • At least one passive optical splitting device is connected between the main control device 41 and the plurality of the slave devices 42 for transmitting downlink data of the main control device 41 to each slave device 42.
  • the connection relationship between the device and the main control device and the slave device and the working principle are the same as those in the prior art, and will not be repeated here.
  • the management capability information generating unit 422 of the slave device 42 when the system initialization or the hardware configuration change of the slave device 42 is performed, the management capability information generating unit 422 of the slave device 42 generates the management capability information (ME Support List ME) according to the hardware configuration of the slave device 42; and the information reporting unit The management capability information generated by the management capability information generating unit 422 is reported to the main control device 41.
  • the management capability information ME Support List ME
  • the management capability reading unit 411 of the main control device 41 can also actively read the management capability information generated by the slave device 42.
  • the main control command transmitting unit 413 of the main control device 41 may also issue an instruction to read the generated management capability (ME Support List ME) by the slave device 41 unit, which is controlled by the master device 42.
  • the command receiving unit 421 receives the command, and reports the management capability information generated by the management capability information generating unit 422 to the management capability receiving unit 412 of the main control device 41 by the information reporting unit 423.
  • the system of the embodiment of the present invention speeds up the time for sending services to the slave devices, and solves the technical defects that the master-slave devices communicate with each other in the prior art.
  • N2007/001446 The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention.

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Description

无源光网络系统、 主控制设备获得从属设备能力的方法
技术领域 本发明涉及光网络技术, 尤其涉及用于光接入网中的无源光网络系统以 及系统中主控制设备获得从属设备能力的方法。 背景技术 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。 由光接入技术实现的接入网称为光接入网 OAN ( optical access network )。
在光接入网中, PON ( passive optical network, 无源光网络)技术是一种 常见的实现技术, PON技术是一种点对多点传送的光接入技术, PON系统的. 构成可以参考图 1所示:
在 PON系统包括 OLT(Optical Line Terminal, 光线路终端)、 ODN(Optical Distribute Network,光分布网)、 ONU(Optical Network Unit,光网络单元)组成, 其中 OLT为 OAN提供网络侧接口 SNI, 连接一个或者多个 ODN; ODN是一种 无源分光器件, ODN将 OLT下行的数据通过光分路传输到各个 ONU, 同样, 0DN将 ONU的上行数据通过汇聚传输到 OLT; ONU为 OAN提供用户侧接口 ( UNI ), 同时与 ODN相连, 如果 ONU同时提供用户端口功能, 如 ONU提供 Ethernet用户端口或者 POTS ( Plain Old Telephone Service )用户端口, 则称为 ONT(Optical Network Termination) 0
PON技术在其 GPON标准中定义了一种配置传输通道 OMCI ( ONU
Manage - ment and Control Interface ), 该 OMCI通道建立在 OLT和 ONT之间, ONT在向 OLT注册时建立 ONT与 OLT之间的 OMCI通道。 OMCI是一种主从式 管理协议, OLT是主控制设备, ONT是从属设备, OLT通过 OMCI通道控制 OLT 下面连接的多个 ONT设备。
OMCI协议中将 OLT管理 ONT的各种数据抽象成协议独立管理信息库 ( rotocol-independent Management Information Base , 筒称 ΜΙΒ ) , 管理信息 库的基本信息单元是管理实体(manage entity 简称 ME ), 根据 ONT的各种类 型的配置, OMCI定义了 OLT控制 ONT的各个 ME, ONT在 OLT的控制下实现 各个 ME的配置管理功能。
在现有技术中, ME的生成有两种方式:
1、 在 ONT初始化或硬件发生变动(如板卡插拔)时, ONT根据自身的硬 件配置确定 ME实例的数目和每一个 ME的具体属性值, 自动创建 ME实例。 这 种 ME的生成方式主要是与 ONT硬件配置相关。
2、 OLT根据业务发放的需要, 通过 OMCI的 Create消息通知 ONT创建 ME 实例, 创建的 ME实例数目和每一个 ME的具体属性值是由 OLT配置。 这种 ME 的生成方式主要是与业务配置相关。 定义了各种管理实体的需求实现等级, 在 GPON协议中对 ME类进行编号, 以 方便 OLT配置,但是由于每一个 ONT支持业务有所不同, OLT在配置 ONT前无 法自动获知 ONT是否支持具体的某一个 ME。 OLT只能逐个下发该业务对应 ME 的 create消息, 如果返回失败, 证明就不支持。 这种通过尝试才能确定 ONT业 务能力的方法不便于 OLT和 ONT设备之间的互通,更不利于 OLT对 ONT的进一 步控制。 发明内容
本发明实施例提供一种无源光网絡系统及该系统中主控制设备获得从属 设备能力的方法, 用以解决现有技术中存在主控制设备 ( OLT )在配置从属设 备(ONT )之前无法获知从属设备的支持业务能力而造成两者不便互通的问 题。
本发明实施例方法包括以下步驟: 从属设备才艮据自身硬件配置, 生成其支持的管理能力信息;
主控制设备获得从属设备支持的管理能力信息;
本发明实施例还提供一种无源光网络系统, 包括主控制设备以及由主控 制设备控制的至少一个从属设备, 所述从属设备包括:
主控制指令接收单元, 用于接收主控制设备发送的指令;
管理能力信息生成单元, 用于根据从属设备自身硬件配置生成管理能力 信息;
信息上报单元, 用于根据主控制指令接收单元接收的指令, 将管理能力 信息生成单元生成的管理能力信息上报给所述主控制设备。
本发明实施例有益效果如下:
本发明实施例的方案是针对 OLT通过 OMCI管理 ONT方式下的 ONT支持 管理能力的上报, 在 OLT和 ONT之间采用任何的管理协议时, 例如 GPON协议 或者 EPON协议,只要 ONT可以根据自身硬件配置生成描述从属设备所支持的 各种 ME的管理能力信息, 并使 OLT获知该信息就可以解决现有技术中存在的 缺陷。 本发明实施例的方法可以加快 ONT业务发放时间, 很快定位出 OLT和 ONT不兼容的情况。 附图说明 图 1为现有的 PON系统框图;
图 2为本发明实施例的方法流程图;
图 3A为本发明的方法的实施例一的流程图;
图 3B为本发明的方法的实施例二的流程图;
图 3C为本发明的方法的实施例三的流程图;
图 4为本发明实施例的系统组成框图。 具体实施方式 本发明实施例提出一种主控制设备获得从属设备能力的方法, 用于无源 光网络系统中, 如图 2所示, 包括以下步骤:
201、 从属设备根据自身硬件配置, 生成其支持的管理能力信息 (ME Support List ME ), 所述管理能力信息包括管理实体数目和各个管理实体对应 的编号;
202、 主控制设备获得从属设备支持的管理能力信息。
当主控制设备获得从属设备支持的管理能力信息后, 主控制设备可根据 从属设备支持的管理能力信息配置从属设备, 以加快 ONT业务发放时间, 或 者定位出 OLT和 ONT不兼容的情况。
在本实施例中, 以 OLT为主控制设备、 ONT为从属设备对本发明实施例 进行说明。 本发明实施例的方法可以是从属设备在无源光网络系统的从属设 备进行初始化或从属设备硬件增减时或者在配置之前或者配置过程中, 从属 设备根据自身的硬件配置, 自动生成管理能力信息, 也就是将所有从属设备 支持的 ME能力进行编号; 生成该信息后, 根据系统设置, 主控制设备可以 通过三种方式获得从属设备当前生成的管理能力信息, 也就是从属设备支持 的 ME类集合, 以下将其简称为 ME:
a、 参见图 3 A所示内容, 从属设备生成 ME后主动将生成的 ME上报给 主控设备;
b、 参见图 3B所述内容, 主控制设备在初始化阶段直接进行 Get操作, 获取从属设备生成的 ME;
c、 参见图 3C所示内容, 主控制设备发出要求从属设备上报支持的 ME 的指令, 从属设备对该命令进行响应, 将从属设备所生成的 ME上报给主控 制设备。
在上述三种方法中, 从属设备与主控制设备之间均是通过无源分光器件 进行信息传输的 , 并且从属设备上报的 ME可通过 OMCI标准的 B Upload 或 Get Response消息进行, 主控制设备 ( OLT )收到上迷两种消息之一即可了 解 ONT当前生成的 ME集合。
采用本发明实施例的方法, 使从属设备创建一特殊 ME类, 用来描述从 属设备对各种 ME的支持能力,譬如本地支持 M种 ME,应主控制设备 Create 消息可创建 N种 ME。 在上述步骤 201中, 从属设备创建这类特殊 ME, 主控 制设备通过上述三种方法之一获取到这种特殊 ME类, 主控制设备通过解析 这种 ME类的内容, 即可了解从属设备对各种 ME的支持能力, 之后在进行 业务配置过程即可有的放矢,避免主控制设备发出与从属设备不兼容的 Create 消息。
以下采用一个具体的应用对上述方法进行说明:
在系统中, 具有一个主控制设备以及多个从属设备(A、 B、 C ), 从属设 备初始化或从属设备的硬件发生改变时, 从属设备根据自身的硬件配置生成 一个新的 ME, 该 ME用来描述从属设备对各种 ME的支持能力。
例如, 从属设备 A支持以太网端口, 需要在主控制设备的控制下配置从 属设备的以太网端口属性, 则从属设备 A应该支持以太网端口配置类型的 ME, GPON协议中的以太网端口配置类型 ME类 (Physical Path Termination Point Ethernet UNI)编号为 11 ,从属设备可以采用上述的三种方式的其中一种, 使主控制设备获知从属设备支持以太网端口配置的 ME,主控制设备就可以对 从属设备的以太网端口进行属性配置。
又如, 从属设备 B和 C支持 POTS ( Plain Old Telephone Service传统普通 电话业务)端口, GPON协议中 POTS 端口配置类型 ME 类 (Physical Path Termination Point POTS UNI)编号为 53 , 所以从属设备 B和 C应该支持编号 53的 ME类。
又譬如, 从属设备 A 支持从 OLT 创建 Multicast GEM Interworking Termination Point类型 (参考 ITU-T G.984.4协议) 的 ME, 编号为 281 , 从属 设备 B和 C不支持创建该种类型的 ME。 从属设备八和^ C的能力不同可 能是因为设备型号不同或生长厂商不同造成, OLT无法预知。 这种情况下, 从属设备 A支持创建编号 281的 ME类,从属设备 B、 C不支持创建编号 281 的 ME类。
在本发明实施例中, 所有从属设备(A、 B、 C )均生成一种特殊 ME类, 即为 ME Support List ME, 编号假设为 400。 从属设备八、 B、 C都支持编号 为 400的 ME类。
如下更详细的定义编号为 400的 ME类。 该 ME的内容是 ONT支持和支 持创建的 ME类编号的集合, 具体属性应该包括一个总数和列表数据结构, 列表数据结构中——列出该 ONT支持和支持创建的 ME编号。
ME Support List ME, 编号 400, 具体内容如下表所示:
Figure imgf000008_0001
由上述说明和定义,主控制设备通过以上三种方法可获取从属设备 A、 B、 C的 ME集合, 如下表所示。 从属设备编号 ME集合描述 ME Support List ME
内容
从属设备 A 编号 400的 ME Support List ME、 {支持 ME类数目为
编 号 11 的 Physical Path 5, 11,281,..· }
Termination Point Ethernet UNI
ME 等。
从属设备 B 编号 400的 ME Support List ME、 {支持 ME类为 10,
编 号 53 的 Physical Path 53,... }
Termination Point Ethernet UNI
ME 等。
从属设备 C 编号 400的 ME Support List ME、 {支持 ME类为 15,
编 号 53 的 Physical Path 53,... }
Termination Point Ethernet UNI
ME 等。 主控制设备得到如上表所示信息, 即了解从属设备(A、 B、 C )对各种 ME的支持能力信息,也就了解了从属设备的硬件能力、业务支持能力等信息, 以便对从属设备便于部署和配置业务属性。譬如主控制设备了解到从属设备 A 支持以太网端口、组播业务能力(对应 Multicast GEM Interworking Termination Point ME ), 从属设备 B和 C支持 POTS端口和业务等。
主控制设备的用户可通过管理界面(命令行或图像界面)看到从属设备 A、 B、 C的能力信息, 了解到 A支持以太网端口, B和 C支持 POTS端口。 用户 即可对 A配置以太网端口的相关属性,譬如自协商、速率选择( 10M或 100M ) 等, 对 B和 C配置 POTS端口的相关属性, 譬如负载阻抗、 增益等。
特别的, 当用户对从属设备 B和 C配置组播业务时, 主控制设备解析用 户命令, 发现需要在从属设备 B和 C上创建编号为 281 的 Multicast GEM Interworking Termination Point ME, 而 B和 C的 ME支持能力集合中不包括 281 , 则主控制设备可直接提示用户, 从属设备 B和 C不支持组播业务。 由上述说明可见, 本发明实施例的方法通过主控制设备获知从属设备支 持的 ME信息, 这样就保证了业务执行的准确性, 使主控制设备清楚的了解 从属设备所支持的业务。
下面对主控制设备获知从属设备支持的 ME信息的三种方式进行详细说 明:
第一种方式 a, 如图 3A所示, ONT在系统初始化阶段(如收到 OLT MIB Reset消息时)会主动上报 ONT ME能力集的属性值(即 ONT支持 ME总数 目和 ME类编号的列表, 可参见上表)。
第二种方式 b, 如图 3B所示, 由主控制设备通过 Get操作直接获取 ONT ME能力集的属性, 采用这种方案, 主控制设备直接从从属设备中读取 ME能 力集, 与第一种方式相同, 该方法也可以达到同样的技术效果。
第三种方式 c, 如图 3C所示, 主控制设备(OLT )要求从属设备(ONT ) 启动 B upload, 具体的处理流程为:
1、 OLT通过 GET命令通知 ONT获取 ME Support List ME的值, 下发参数 包括] ME Support List ME类编号和实例编号。
2、 ONT响应 OLT的 GET命令, 将 ME Support List ME值上报给 OLT。 综上所述, 本发明实施例的方法可以加快从属设备业务发放的时间, 同 时因为主控制设备能够获知从属设备的支持 ME类型, 能够很快的定位出主控 制设备和从属设备不兼容的问题。 譬如主控制设备通过比较自身支持的 ME列 表和从属设备支持的 ME列表, 即可发现一些兼容性问题。 如果没有本发明实 施例的方法, 主控制设备必须下发 Create等消息, 从属设备响应失败, 才进行 诊断定位, 排除通信故障和 ONT故障后, 才能确认为兼容性问题。
另外, 本发明实施例还提供一种无源光网络系统, 如图 4所示, 包括主 控制设备 41以及多个从属设备 42, 所述从属设备 42包括:
主控制指令接收单元 421 , 用于接收主控制设备 41发送的指令; 管理能力信息生成单元 422,用于根据从属设备自身硬件配置生成管理能 力信息;
信息上报单元 423 , 用于根据主控制指令接收单元 421接收的指令,将管 理能力信息生成单元 422生成的管理能力信息上 4艮给所述主控制设备 41。
在本发明实施例中, 所迷主控制设备 41至少包括:
管理能力读取单元 411 , 用于读取从属设备 42生成的管理能力信息。 所述主控制设备 41还包括:
管理能力接收单元 412,用于接收从属设备的信息上报单元 423上报的管 理能力信息;
主控制指令发送单元 413 , 用于发出控制从属设备 41的指令。
在本实施例中, 所述主控制设备 41与多个所述从属设备 42之间还至少 连接一个无源分光器件, 用于将主控制设备 41的下行数据传输到各个从属设 备 42, 该分光器件与主控制设备以及从属设备的连接关系以及工作原理与现 有技术相同, 在此不再进行赘述。
实际应用中, 在进行系统初始化或从属设备 42硬件配置改变时, 从属设 备 42的管理能力信息生成单元 422根据从属设备 42 自身硬件配置生成管理 能力信息( ME Support List ME ); 并由信息上报单元 423将管理能力信息生 成单元 422生成的管理能力信息上报给所述主控制设备 41。
在本发明实施例的系统中,也可由主控制设备 41的管理能力读取单元 411 主动读取从属设备 42生成的管理能力信息。
在本发明实施例的系统中, 还可由主控制设备 41的主控制指令发送单元 413发出由从属设备 41单元读取生成的管理能力( ME Support List ME )的指 令, 由从属设备 42的主控制指令接收单元 421接收该指令, 再次由信息上报 单元 423将管理能力信息生成单元 422生成的管理能力信息上报给所述主控 制设备 41的管理能力接收单元 412。
综上所述, 本发明实施例的系统较现有技术加快了向从属设备发送业务 的时间, 并解决了现有技术中存在的主从设备互通不变的技术缺陷。 N2007/001446 发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要 求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权利要求
1、 一种主控制设备获得从属设备能力的方法, 用于无源光网络系统中, 其特征在于, 包括以下步骤:
从属设备根据自身硬件配置, 生成其支持的管理能力信息;
主控制设备获得从属设备支持的管理能力信息。
2、 根据权利要求 1所述的方法, 其特征在于, 所述步骤主控制设备获得 从属设备支持的管理能力信息包括以下步骤:
从属设备将生成的管理能力信息主动上报给主控制设备。
3、 根据权利要求 1所述的方法, 其特征在于, 所述的步骤主控制设备获 得从属设备支持的管理能力信息包括以下步骤:
主控制设备向从属设备发出获取从属设备支持的管理能力信息的命令; 从属设备根据命令上报其管理能力信息至主控制设备。
4、 根据权利要求 1所述的方法, 其特征在于, 所述的步骤主控制设备获 得从属设备支持的管理能力信息包括以下步骤:
主控制设备直接获取从属设备管理能力信息。
5、 根据权利要求 2或 3或 4所述的方法, 其特征在于, 所述步骤主控制 设备获得从属设备支持的管理能力信息 中, 所述主控制设备与从属设备通过 无源分光器件进行信息传输。
6、 根据权利要求 1、 2、 3或 4所述的方法, 其特征在于, 在执行所述步 骤主控制设备获得从属设备支持的管理能力信息之后, 还执行步骤: 主控制 设备根据从属设备支持的管理能力信息配置从属设备, 或者或者定位主控制 设备和从属设备不兼容的情况。
7、 根据权利要求 1、 2、 3或 4所述的方法, 其特征在于, 所述管理能力 信息包括管理实体数目和各个管理实体对应的编号。
8、 一种无源光网络系统, 包括主控制设备以及由主控制设备控制的至少 一个从属设备, 其特征在于, 所述从属设备包括: 主控制指令接收单元, 用于接收主控制设备发达 今、; .
管理能力信息生成单元, 用于根据从属设备自身硬件配置生成管理能力 信息;
信息上报单元, 用于根据主控制指令接收单元接收的指令, 将管理能力 信息生成单元生成的管理能力信息上报给所述主控制设备。
9、 根据权利要求 8所述的系统, 其特征在于, 所述主控制设备包括: 管理能力读取单元, 用于读取从属设备生成的管理能力信息。
10、 根据权利要求 8或 9所述的系统, 其特征在于, 所述主控制设备还 包括:
管理能力接收单元, 用于接收从属设备的信息上报单元上报的管理能力 ' s息。
11、 根据权利要求 8所述的系统, 其特征在于, 所述主控制设备还包括: 主控制指令发送单元, 用于向从属设备发出控制指令。
12、 根据权利要求 8所述的系统, 其特征在于, 所述主控制设备与所述从 属设备之间还至少连接一个无源分光器件, 用于将主控制设备的下行数据传 输到各个从属设备, 并将从属设备的上行数据汇聚传输到主控制设备。
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KR20040026271A (ko) * 2002-09-23 2004-03-31 삼성전자주식회사 기가비트 이더넷 수동형광가입자망에서 오엔유의 데이터전송 대역 할당 방법 및 데이터 전송 대역 할당을 위한메시지 필드 구조
CN1674471A (zh) * 2004-03-26 2005-09-28 上海贝尔阿尔卡特股份有限公司 用于调度无源光网络中多类别业务的控制方法和系统

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CN103891177A (zh) * 2012-10-17 2014-06-25 华为技术有限公司 无源光网络的保护倒换方法、系统及装置
CN103891177B (zh) * 2012-10-17 2016-10-12 华为技术有限公司 无源光网络的保护倒换方法、系统及装置
US9998211B2 (en) 2012-10-17 2018-06-12 Huawei Technologies Co., Ltd. Protection switching method, system, and apparatus for passive optical network

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CN100499408C (zh) 2009-06-10
EP1858185A3 (en) 2010-04-07
EP1858185A2 (en) 2007-11-21
CN101322334B (zh) 2013-02-27
US20070263656A1 (en) 2007-11-15
CN101322334A (zh) 2008-12-10
CN101047445A (zh) 2007-10-03
EP2378684B1 (en) 2015-03-11
US7596104B2 (en) 2009-09-29
EP2378684A3 (en) 2011-10-26

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