WO2020191938A1 - 一种pon接入系统子框级联的系统及方法 - Google Patents

一种pon接入系统子框级联的系统及方法 Download PDF

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Publication number
WO2020191938A1
WO2020191938A1 PCT/CN2019/094120 CN2019094120W WO2020191938A1 WO 2020191938 A1 WO2020191938 A1 WO 2020191938A1 CN 2019094120 W CN2019094120 W CN 2019094120W WO 2020191938 A1 WO2020191938 A1 WO 2020191938A1
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sub
frame
cascade
cascading
extended
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PCT/CN2019/094120
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English (en)
French (fr)
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陈志欣
胡利明
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烽火通信科技股份有限公司
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Priority to BR112021010540-9A priority Critical patent/BR112021010540A2/pt
Publication of WO2020191938A1 publication Critical patent/WO2020191938A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • 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
    • 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
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects

Definitions

  • the invention relates to the field of PON (Passive Optical Network) access systems, in particular to a system and method for cascading sub-frames of a PON access system.
  • PON Passive Optical Network
  • OLT Optical Line Terminal
  • OLT optical Line Terminal
  • OLT supports PON, MSAN (Multi-Service Access Network, integrated service access network) hybrid networking, or PON, MSAN separate networking.
  • MSAN Multi-Service Access Network, integrated service access network
  • PON MSAN separate networking.
  • the current operator proposes to support 1536 DSL (Digital Subscriber Line) users or 1536 POTS (Plain Old Telephone Service) in a single rack without adding additional public IP.
  • Analog telephone service users
  • the market also urgently needs single-rack equipment (including extended sub-frames) to access no less than 1536 DSL/POTS users, and only need one public network management IP address and voice IP address.
  • the maximum number of DSL users that can be accessed in a single rack is usually 1024, or the maximum number of POTS users is 1024, and the expansion sub-frame is not supported, which cannot meet customer needs.
  • the purpose of the present invention is to provide a PON access system sub-frame cascading system, which can flexibly configure the number of cascaded sub-frames according to the number of users to meet the needs of different regions and different operators.
  • the present invention provides a PON access system sub-frame cascading system, which is used to cascade extended sub-frames on the system sub-frame, and both the system sub-frame and the extended sub-frame include:
  • the cascade management module is used to initialize, delete or maintain the cascade state between the system sub-frame and the extended sub-frame;
  • Device management module which is used to complete the configuration of the cascade port between the system sub-frame and the expansion sub-frame and open up the data path;
  • the master-slave communication module is used to allocate MAC addresses and IPs for the service disks of the expansion sub-frames, and establish a master-slave connection between the system sub-frames and the expansion sub-frames according to the cascading state between the system sub-frames and the expansion sub-frames;
  • the system sub-frame also includes a database, the database is used to store configuration data, and the configuration data includes a sub-frame role, a cascading sub-frame number, and a cascading port.
  • the cascade management module is also used to provide an interface for accessing cascading status information between the system sub-frame and the extended sub-frame.
  • the device management module is also used to configure the layer 2 switching function of the extended subframe.
  • the system subframe includes a data plane, a control plane and a support plane;
  • the database of the system subframe is located in the data plane
  • the cascade management module and the device management module of the system subframe are located in the control plane;
  • the master-slave communication module of the system subframe is located in the supporting plane.
  • the present invention also provides a method for cascading PON access system sub-frames, including:
  • the system sub-frame is cascaded and connected with the main control panel of the extended sub-frame;
  • Expansion sub-frames are cascaded and connected to the main control panel of the system sub-frames;
  • the extended subframe reports the physical status.
  • the system subframe and the expansion subframe both include a cascade management module, a device management module, and a master-slave communication module, the system subframe also includes a database, and the system subframe performs cascading configuration , And establish a connection with the main control panel of the extended subrack.
  • the specific steps include:
  • the system sub-frame configures the sub-frame role, cascade sub-frame number and cascade port, and generates configuration data
  • the cascade management module verifies the generated configuration data, and when the configuration data is valid, saves the configuration data in the database of the system subframe;
  • the cascade management module calls the device management module to create a cascade channel
  • the cascade management module drives the master-slave communication module to establish a connection with the master control panel of the expansion sub-frame.
  • the expansion sub-frame is configured in cascade and establishes a connection with the main control panel of the system sub-frame.
  • the specific steps include:
  • S201 Extend the sub-frame configuration sub-frame role, cascade sub-frame number and cascade port, and generate configuration data
  • the cascade management module calls the device management module to create a cascade channel
  • the cascade management module drives the master-slave communication module to set the MAC address and IP of the master control panel of the expansion sub-frame, and establish a connection with the master control panel of the system sub-frame.
  • the master-slave communication is established between the system sub-frame and the extended sub-frame, the specific steps include:
  • S301 The extended subframe sends an ADP message to the system subframe
  • the system sub-frame processes the received ADP message to establish a TCP link with the extended sub-frame;
  • the main control panel of the extension sub-frame sends an ADP message for modifying the MAC address and IP of the line card to the line card, and allocates the MAC address and IP of the line card as the MAC address and IP of the cascade slot;
  • S304 The line card corrects the MAC address and IP according to the issued ADP message, and then returns an ADP response to the main control panel of the extended subframe;
  • S305 The main control panel of the extended sub-frame receives the ADP response, and reports the MAC address and IP information of the line card to the system sub-frame;
  • S306 The system sub-frame establishes a TCP link with the line card of the extended sub-frame based on the received information.
  • the extended sub-frame reports the physical status
  • the specific steps include:
  • the system sub-frame receives the physical status change reported by the extended sub-frame, and calls the network management agent interface to send to the network management for display and processing.
  • the physical state is the physical state of the line card power supply or fan device on the expansion subrack.
  • the present invention has the advantage that: by setting the cascade management module, the device management module and the master-slave communication module in the system subframe and the expansion subframe, the cascade port between the system subframe and the expansion subframe is completed.
  • the cascading state between the system sub-frame and the expansion sub-frame the MAC address and IP are allocated for the service disk of the expansion sub-frame, and the master-slave connection between the system sub-frame and the expansion sub-frame is established. It can support the cascading of multiple OLTs, and the number of cascading sub-frames can be flexibly configured according to the number of users to meet the needs of different regions and different operators, and multiple sub-frames work in cascade mode, saving public network IP resources.
  • Figure 1 is a schematic structural diagram of a PON access system sub-frame cascade system in an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for cascading sub-frames of a PON access system in an embodiment of the present invention
  • Figure 3 is a flow chart of cascading configuration of system sub-frames in an embodiment of the present invention.
  • 5 is a flowchart of establishing master-slave communication between the system sub-frame and the extended sub-frame in an embodiment of the present invention
  • Fig. 6 is a flowchart of the physical state reporting of the extended subframe in the embodiment of the present invention.
  • the present invention will be further described in detail below in conjunction with the drawings and embodiments. Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the embodiment of the present invention provides a PON access system sub-frame cascading system.
  • the OLT cascade function is realized on the basis of a single OLT system, and the cascading sub-frames are flexibly configured according to the number of users. Number to meet the needs of different regions and different operators.
  • the embodiment of the present invention also correspondingly provides a method for cascading sub-frames of a PON access system.
  • a PON access system sub-frame cascading system provided by an embodiment of the present invention is used to cascade extended sub-frames on a system sub-frame.
  • One embodiment includes: a system sub-frame and an extended sub-frame Each includes a cascade management module, a device management module, and a master-slave communication module.
  • the system subframe also includes a database.
  • the cascade management module is used to initialize, delete or maintain the cascading state between the system subframe and the expansion subframe. Maintenance refers to maintaining the current cascade state between the system subframe and the expansion subframe.
  • the cascade management module is also used to provide an interface for accessing cascading status information between the system sub-frame and the extended sub-frame.
  • the equipment management module is used to complete the configuration of the cascade port between the system sub-frame and the expansion sub-frame and to open up the data path, and the equipment management module is also used to configure the two-layer switching function of the expansion sub-frame.
  • the master-slave communication module is used for allocating MAC addresses and IPs for the service disks of the expansion sub-frames and establishing a master-slave connection between the system sub-frames and the expansion sub-frames according to the cascading state between the system sub-frames and the expansion sub-frames.
  • the database is used to save configuration data, which includes sub-frame roles, cascading sub-frame numbers, and cascading ports.
  • the system subframe includes a data plane, a control plane, and a support plane.
  • the database of the system sub-frame is located in the data plane
  • the cascade management module and the device management module of the system sub-frame are located in the control plane
  • the master-slave communication module of the system sub-frame is located in the support plane.
  • a cascade management module, a device management module, and a master-slave communication module are set in the system sub-frame and the expansion sub-frame to complete the connection between the system sub-frame and the expansion sub-frame.
  • the configuration of the cascading port and the opening of the data path, and according to the cascading status between the system sub-frame and the expansion sub-frame, the MAC address and IP are allocated for the service disk of the expansion sub-frame, and the master between the system sub-frame and the expansion sub-frame is established.
  • connection can support the cascading of multiple OLTs, and the number of cascading sub-frames can be flexibly configured according to the number of users to meet the needs of different regions and different operators, and multiple sub-frames work in cascade mode, saving public network IP resources.
  • a method for cascading PON access system sub-frames provided by an embodiment of the present invention is based on the above-mentioned PON access system sub-frame cascading system, and PON access system sub-frame cascading
  • An embodiment of the method includes the following steps:
  • S1 The system sub-frame is cascaded and connected to the main control panel of the extended sub-frame;
  • the system is configured in cascade and establishes a connection with the main control panel of the extended sub-frame.
  • the specific steps include:
  • the system subframe configures the subframe role, cascade subframe number and cascade port, and generates configuration data. Specifically, use the command line to configure the sub-frame role, cascade sub-frame number, and cascade port.
  • the cascade management module of the system subframe verifies the generated configuration data, and when the configuration data is legal, saves the configuration data in the database of the system subframe. If the configuration data is illegal, record the log. Legal refers to the configuration.
  • the sub-frame role, cascading sub-frame number, and cascading port are in compliance with relevant regulations during use and can be used normally.
  • the database engine saves the configuration data to the data table and records the storage of the configuration data through the log.
  • the cascade management module of the system subframe calls the device management module to create a cascade channel
  • the cascading management module of the system sub-frame drives the master-slave communication module to establish a connection with the main control disk of the extension sub-frame, and after the connection is established, the relevant log is recorded.
  • the extension sub The racks are configured in cascade and establish a connection with the main control panel of the system sub-rack.
  • the specific steps include:
  • S201 Extend the sub-frame configuration sub-frame role, cascade sub-frame number and cascade port, and generate configuration data
  • S202 The cascade management module of the extended subframe verifies the generated configuration data, and when the configuration data is legal, saves the configuration data in the database of the system subframe. Similarly, if the configuration data is illegal, record the log. For configuration data, the database engine saves the configuration data to the data table, and records the storage status of the configuration data through the log;
  • S203 The cascade management module of the extended subframe calls the device management module to create a cascade channel, and records related logs;
  • the cascade management module of the expansion subframe drives the master-slave communication module to set the MAC address and IP of the main control disk of the expansion subframe, and establish a connection with the main control disk of the system subframe.
  • the system sub-frame Establish master-slave communication between the frame and the extended sub-frame the specific steps include:
  • ADP or Another Data Processor, is a programming language for Web database programming.
  • the system sub-frame processes the received ADP message to establish a TCP (Transmission Control Protocol, Transmission Control Protocol) link with the extension sub-frame;
  • the main control panel of the extension sub-frame sends an ADP message for modifying the MAC address and IP of the line card to the line card, and allocates the MAC address and IP of the line card as the MAC address and IP of the cascade slot;
  • S304 The line card corrects the MAC address and IP according to the issued ADP message, and then returns an ADP response to the main control panel of the extended subframe;
  • S305 The main control panel of the extended sub-frame receives the ADP response, and reports the MAC address and IP information of the line card to the system sub-frame;
  • the system sub-frame establishes a TCP link with the line card of the extended sub-frame based on the received information.
  • the cascade management module controls the restart of the system sub-frame and the expansion sub-frame, which can restore the system sub-frame and the expansion sub-frame to the non-cascading mode.
  • the extension sub The physical status of the frame is reported, and the specific steps include:
  • S401 When the physical state of the device on the extended subframe changes, the device management module of the extended subframe reports to the system subframe through the master-slave communication module.
  • the physical status is the physical status of the line card power supply or fan device on the expansion subrack.
  • the system sub-frame receives the physical status change reported by the extended sub-frame, and calls the network management agent interface to send to the network management for display and processing.
  • a method for cascading sub-frames of a PON access system in an embodiment of the present invention without changing the existing hardware, through cascading switching
  • the chip's uplink port realizes the function of expanding subframes and slots, so as to meet the demand for increasing the number of access users. It includes at least the following steps:
  • A1 Set the subframes, one is the system subframe, and the other is the extension subframe.
  • the system subframe is responsible for the configuration management of the entire device and the MSAN (Multi-Service Access Network) voice protocol deal with.
  • MSAN Multi-Service Access Network
  • A2 Set the system sub-frame to make the communication IP address and MAC address between the line card boards of the system sub-frame unchanged, and set the IP address of each service slot.
  • the service slot IP address is 10.25.100.X, and X varies according to the slot.
  • X is 1-16.
  • the MAC address of the service slot is: 00.0a.88.88.88.X, and X varies according to the slot, and is 1-16.
  • the MAC address of the main control panel is the factory-set MAC address.
  • the IP addresses of the two main control disks of the system subframe are set to 10.25.100.17 in the embodiment of the present invention.
  • the IP addresses of the two main control disks can be adjusted according to scene requirements.
  • the two main control disks have a master/backup relationship, redundant backup, and the same IP address.
  • A3 The main control disk of the system sub-frame allocates the private network IP and MAC addresses of the two extended sub-frames, and the configuration of the extended sub-frame is issued by the main control disk of the system sub-frame.
  • the main control panel of the extended sub-frame is set to control the forwarding of service flow, and the main control panel of the extended sub-frame no longer configures and manages the service slots of the extended sub-frame, does not save the configuration of the service slots, and does not allocate private Network IP and MAC address.
  • the main control panel of the extended sub-frame is set to control the forwarding of service flow, and the main control panel of the extended sub-frame no longer configures and manages the service slots of the extended sub-frame, and does not save the service slots.
  • the configuration of not assigning private IP and MAC addresses is as follows:
  • A4 Set the communication IP address and MAC address between the expansion subframe line cards, the specific settings are as follows:
  • A401 Increase the slot granularity of the extended subframe by Y, and the value of Y can be set accordingly according to requirements.
  • the value of Y is set to 40.
  • A402 Set the service slot IP address of an extension subframe to 10.25.100.Y+X.
  • X varies according to the slot, and is 1-16.
  • an extension subframe The IP address of the service slot in the box is set to 10.25.100.40.2.
  • A403 Set the service slot IP address of the other extended sub-frame to 10.25.100.2Y+X.
  • X varies according to the different slots. It is 1-16 and set to 2Y, that is, the first extension sub-frame. Double is to reserve 40 slots in each subframe to facilitate program allocation and management.
  • the IP addresses of the two main control boards are 10.25.100.17.
  • the MAC address of the service slot is: 00.0a.88.88.88.80+X, and X varies according to the slot, which is 1-16.
  • the communication IP address and MAC address between the expansion subframe line cards are modified accordingly.
  • the modification rule is that the slot granularity is increased by 40, and the service slot IP address of the expansion subframe 1 is 10.25.100.40+X. X varies according to the slot. Different, 1-16 respectively.
  • the IP addresses of the two main control boards are 10.25.100.17.
  • the MAC address of the service slot is: 00.0a.88.88.88.40+X.X varies according to the slot, which is 1-16.

Abstract

一种PON接入系统子框级联的系统及方法，涉及PON接入系统领域，该系统中系统子框和扩展子框均包括级联管理模块、设备管理模块和主从通信模块：级联管理模块用于初始化、删除或维护系统子框和扩展子框间的级联状态；设备管理模块用于完成系统子框和扩展子框间级联端口的配置和数据通路的打通；主从通信模块用于根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，以及建立系统子框和扩展子框间的主从连接；系统子框还包括数据库，数据库用于保存配置数据，配置数据包括子框角色、级联子框号和级联端口。

Description

一种PON接入系统子框级联的系统及方法 技术领域
本发明涉及PON(Passive Optical Network无源光网络)接入系统领域，具体涉及一种PON接入系统子框级联的系统及方法。
背景技术
OLT(Optical Line Terminal，光线路终端)是大型局端综合业务接入设备，主要服务于国内各大电信运营商及专网用户，及国际市场各电信运营商。
OLT支持PON、MSAN(Multi-Service Access Network，综合业务接入网)混合组网，或者PON、MSAN单独组网。在MSAN单独组网模式下，当前运营商提出需在不额外增加公网IP的基础上，单机架支持1536个DSL(Digital Subscriber Line，数字用户线路)用户或者1536个POTS(Plain Old Telephone Service，模拟电话业务)用户，市场也迫切需要单机架设备(含扩展子框)接入不少于1536个DSL/POTS用户，且只需要一个公网管理IP地址和语音IP地址。而当前单机架最大可接入DSL用户通常为1024，或最大1024个POTS用户，且不支持扩展子框，无法满足客户需求。
发明内容
针对现有技术中存在的缺陷，本发明的目的在于提供一种PON接入系统子框级联的系统，可以根据用户数量灵活配置级联子框数目，满足不同地域和不同运营商的需求。
为达到以上目的，本发明提供的一种PON接入系统子框级联的 系统，用于在系统子框上级联扩展子框，所述系统子框和扩展子框均包括：
级联管理模块，其用于初始化、删除或维护系统子框和扩展子框间的级联状态；
设备管理模块，其用于完成系统子框和扩展子框间级联端口的配置和数据通路的打通；
主从通信模块，其用于根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，以及建立系统子框和扩展子框间的主从连接；
所述系统子框还包括数据库，所述数据库用于保存配置数据，所述配置数据包括子框角色、级联子框号和级联端口。
在上述方案的基础上，所述级联管理模块还用于提供访问系统子框和扩展子框间级联状态信息的接口。
在上述方案的基础上，所述设备管理模块还用于对扩展子框进行二层交换功能的配置。
在上述方案的基础上，
所述系统子框包括数据平面、控制平面和支撑平面；
所述系统子框的数据库位于数据平面中；
所述系统子框的级联管理模块和设备管理模块位于控制平面中；
所述系统子框的主从通信模块位于支撑平面中。
本发明还提供一种PON接入系统子框级联的方法，包括：
系统子框进行级联配置，并与扩展子框的主控盘建立连接；
扩展子框进行级联配置，并与系统子框的主控盘建立连接；
系统子框和扩展子框间建立主从通信；
扩展子框进行物理状态上报。
在上述方案的基础上，所述系统子框和扩展子框均包括级联管理模块、设备管理模块和主从通信模块，所述系统子框还包括数据库，所述系统子框进行级联配置，并与扩展子框的主控盘建立连接，具体步骤包括：
S101：系统子框配置子框角色、级联子框号和级联端口，生成配置数据；
S102：级联管理模块校验生成的配置数据，且当配置数据合法时将配置数据保持至系统子框的数据库中；
S103：级联管理模块调用设备管理模块创建级联通道；
S104：级联管理模块驱使主从通信模块与扩展子框的主控盘建立连接。
在上述方案的基础上，所述扩展子框进行级联配置，并与系统子框的主控盘建立连接，具体步骤包括：
S201：扩展子框配置子框角色、级联子框号和级联端口，生成配置数据；
S202：级联管理模块校验生成的配置数据；
S203：级联管理模块调用设备管理模块创建级联通道；
S204：级联管理模块驱使主从通信模块设置扩展子框主控盘的MAC地址和IP，以及与系统子框的主控盘建立连接。
在上述方案的基础上，所述系统子框和扩展子框间建立主从通信，具体步骤包括：
S301：扩展子框向系统子框发送ADP报文；
S302：系统子框处理接收的ADP报文以与扩展子框建立TCP链接；
S303：扩展子框的主控盘向线卡下发用于修正线卡MAC地址和 IP的ADP报文，将线卡的MAC地址和IP分配为级联槽位的MAC地址和IP；
S304：线卡根据下发的ADP报文，修正MAC地址和IP，然后向扩展子框主控盘返回ADP应答；
S305：扩展子框主控盘接收ADP应答，向系统子框上报线卡的MAC地址和IP信息；
S306：系统子框基于接收的信息，与扩展子框的线卡建立TCP链接。
在上述方案的基础上，所述扩展子框进行物理状态上报，具体步骤包括：
S401：当扩展子框上设备的物理状态发生变化时，扩展子框的设备管理模块通过主从通信模块，向系统子框上报；
S402：系统子框接收扩展子框上报的物理状态变化，并调用网管代理接口发送给网管进行显示和处理。
在上述方案的基础上，所述物理状态为扩展子框上线卡电源或风扇设备的物理状态。
与现有技术相比，本发明的优点在于：通过在系统子框和扩展子框中设置级联管理模块、设备管理模块和主从通信模块，完成系统子框和扩展子框间级联端口的配置和数据通路的打通，并根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，建立系统子框和扩展子框间的主从连接，使得能够支持多台OLT级联，可以根据用户数量灵活配置级联子框数目，满足不同地域和不同运营商的需求，且多个子框通过级联方式工作，节约公网IP资源。
附图说明
图1为本发明实施例中一种PON接入系统子框级联的系统的结 构示意图；
图2为本发明实施例中一种PON接入系统子框级联的方法的流程图；
图3为本发明实施例中系统子框进行级联配置的流程图；
图4为本发明实施例中扩展子框进行级联配置的流程图；
图5为本发明实施例中系统子框和扩展子框间建立主从通信的流程图；
图6为本发明实施例中扩展子框进行物理状态上报的流程图。
具体实施方式
以下结合附图及实施例对本发明作进一步详细说明。本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明实施例提供一种PON接入系统子框级联的系统，针对GPON/EPON系统的OLT，在单个OLT系统的基础上实现OLT间的级联功能，根据用户数量灵活配置级联子框数目，满足不同地域和不同运营商的需求。本发明实施例还相应地提供了一种PON接入系统子框级联的方法。
参见图1所示，本发明实施例提供的一种PON接入系统子框级联的系统用于在系统子框上级联扩展子框，其中一实施例包括：系统子框和扩展子框中均包括级联管理模块、设备管理模块和主从通信模块，系统子框还包括数据库。
级联管理模块用于初始化、删除或维护系统子框和扩展子框间的级联状态，维护是指维护系统子框和扩展子框间的当前级联状态。级联管理模块还用于提供访问系统子框和扩展子框间级联状态信息的接口。设备管理模块用于完成系统子框和扩展子框间级联端口的配置和数据通路的打通，设备管理模块还用于对扩展子框进行二层交换功能的配置。
主从通信模块用于根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，以及建立系统子框和扩展子框间的主从连接。数据库用于保存配置数据，配置数据包括子框角色、级联子框号和级联端口。
本发明实施例中，具体的，系统子框包括数据平面、控制平面和支撑平面。系统子框的数据库位于数据平面中，系统子框的级联管理模块和设备管理模块位于控制平面中，系统子框的主从通信模块位于支撑平面中。
本发明实施例的PON接入系统子框级联的系统，通过在系统子框和扩展子框中设置级联管理模块、设备管理模块和主从通信模块，完成系统子框和扩展子框间级联端口的配置和数据通路的打通，并根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，建立系统子框和扩展子框间的主从连接，使得能够支持多台OLT级联，可以根据用户数量灵活配置级联子框数目，满足不同地域和不同运营商的需求，且多个子框通过级联方式工作，节约公网IP资源。
参见图2所示，本发明实施例提供的一种PON接入系统子框级联的方法，基于上述所述的PON接入系统子框级联的系统，PON接入系统子框级联的方法的一实施例包括以下步骤：
S1：系统子框进行级联配置，并与扩展子框的主控盘建立连接；
S2：扩展子框进行级联配置，并与系统子框的主控盘建立连接；
S3：系统子框和扩展子框间建立主从通信；
S4：扩展子框进行物理状态上报。
参见图3所示，可选地，在上述图2对应实施例的基础上，本发明实施例提供的一种PON接入系统子框级联的方法的第一个可选实施例中，系统子框进行级联配置，并与扩展子框的主控盘建立连接，具体步骤包括：
S101：系统子框配置子框角色、级联子框号和级联端口，生成配置数据。具体为使用命令行的方式配置子框角色、级联子框号和级联端口。
S102：系统子框的级联管理模块校验生成的配置数据，且当配置数据合法时将配置数据保持至系统子框的数据库中，若配置数据不合法，则记录日志，合法是指配置的子框角色、级联子框号和级联端口，在使用过程中符合相关规定，且能够正常使用。对于合法的配置数据，数据库引擎将配置数据保存到数据表中，并通过日志记录配置数据保存情况。
S103：系统子框的级联管理模块调用设备管理模块创建级联通道；
S104：系统子框的级联管理模块驱使主从通信模块与扩展子框的主控盘建立连接，连接建立后，记录相关日志。
可选地，参见图3所示，在图1对应实施例的基础上，本发明实施例提供的一种PON接入系统子框级联的方法的第二个可选实施例中，扩展子框进行级联配置，并与系统子框的主控盘建立连接，具体步骤包括：
S201：扩展子框配置子框角色、级联子框号和级联端口，生成配置数据；
S202：扩展子框的级联管理模块校验生成的配置数据，且当配置数据合法时将配置数据保持至系统子框的数据库中，同样的，若配置数据不合法，则记录日志，对于合法的配置数据，数据库引擎将配置数据保存到数据表中，并通过日志记录配置数据保存情况；
S203：扩展子框的级联管理模块调用设备管理模块创建级联通道，并记录相关日志；
S204：扩展子框的级联管理模块驱使主从通信模块设置扩展子框主控盘的MAC地址和IP，以及与系统子框的主控盘建立连接。
可选地，参见图4所示，在图1对应实施例的基础上，本发明实施例提供的一种PON接入系统子框级联的方法的第三个可选实施例中，系统子框和扩展子框间建立主从通信，具体步骤包括：
S301：扩展子框向系统子框发送ADP报文。ADP即Another Data Processor，是一个用于Web数据库编程的编程语言。
S302：系统子框处理接收的ADP报文以与扩展子框建立TCP(Transmission Control Protocol，传输控制协议)链接；
S303：扩展子框的主控盘向线卡下发用于修正线卡MAC地址和IP的ADP报文，将线卡的MAC地址和IP分配为级联槽位的MAC地址和IP；
S304：线卡根据下发的ADP报文，修正MAC地址和IP，然后向扩展子框主控盘返回ADP应答；
S305：扩展子框主控盘接收ADP应答，向系统子框上报线卡的MAC地址和IP信息；
S306：系统子框基于接收的信息，与扩展子框的线卡建立TCP 链接。级联管理模块控制系统子框和扩展子框重启，即可将系统子框和扩展子框恢复到非级联模式。
可选地，参见图5所示，在图1对应实施例的基础上，本发明实施例提供的一种PON接入系统子框级联的方法的第四个可选实施例中，扩展子框进行物理状态上报，具体步骤包括：
S401：当扩展子框上设备的物理状态发生变化时，扩展子框的设备管理模块通过主从通信模块，向系统子框上报。物理状态为扩展子框上线卡电源或风扇设备的物理状态。
S402：系统子框接收扩展子框上报的物理状态变化，并调用网管代理接口发送给网管进行显示和处理。
基于同一个总的发明构思下，还可以按如下实施例进行实施：本发明实施例的一种PON接入系统子框级联的方法，在不改变现有硬件的前提下，通过级联交换芯片的上联端口，实现扩展子框和槽位的功能，从而达到满足增加接入用户数的需求。其具体至少包括如下步骤：
A1:将子框进行设置，一个为系统子框，两个为为扩展子框，其中系统子框负责整个设备的配置管理，以及MSAN(Multi-Service Access Network，综合业务接入网)语音协议处理。
A2:对系统子框进行设置，使系统子框线卡板间通信IP地址和MAC地址不变，并设置各个业务槽位的IP地址。
具体的，将业务槽位IP地址为10.25.100.X，X根据槽位不同而不同，在本实施例中，X为1～16。业务槽位MAC地址为：00.0a.88.88.88.X，X根据槽位不同而不同，分别为1～16。主控盘MAC地址为出厂设置的MAC地址。
系统子框的两块主控盘的IP地址在本发明实施例中则设为 10.25.100.17，当然，根据不同的需求，两块主控盘的IP地址可根据场景需求进行调整。两块主控盘为主备关系，冗余备份，IP地址一样。
A3:系统子框主控盘分配两个扩展子框的私网IP和MAC地址，并且所述扩展子框的配置均是由系统子框的主控盘下发的。并且，将扩展子框的主控盘设置成控制业务流的转发，而扩展子框主控盘不再对扩展子框的业务槽位进行配置管理，不保存业务槽位的配置，不分配私网IP和MAC地址。
作为一个可选的实施方式，将扩展子框的主控盘设置成控制业务流的转发，而扩展子框主控盘不再对扩展子框的业务槽位进行配置管理，不保存业务槽位的配置，不分配私网IP和MAC地址的实现方式为：
修改系统OLT流策略规则，将主从通信相关规则绑定到所有上联口；将扩展OLT主控主从通信接口down掉；修改扩展OLT流策略规则，将主从通信相关规则uninstall。
A4:设置扩展子框线卡板间通信IP地址和MAC地址，具体设置如下：
A401:将扩展子框的槽位粒度增加Y，Y的值根据需求可相应设定，在本发明实施例中，Y的值设定为40。
A402:将一个扩展子框中的业务槽位IP地址设置为10.25.100.Y+X，X根据槽位不同而不同，分别为1～16，例如，在本发明实施例中，一个扩展子框中的业务槽位IP地址被设置为10.25.100.40.2。
A403:将另一扩展子框的业务槽位IP地址设置为10.25.100.2Y+X，X根据槽位不同而不同，分别为1～16，设置成2Y，即第一个扩展子框的一倍，是为了按照每个子框40个槽位预留，方 便程序分配管理。两块主控盘IP地址为10.25.100.17。业务槽位MAC地址为：00.0a.88.88.88.80+X，X根据槽位不同而不同，分别为1～16。
扩展子框线卡板间通信IP地址和MAC地址进行相应的修改，修改规则为槽位粒度增加40，扩展子框1的业务槽位IP地址为10.25.100.40+X，X根据槽位不同而不同，分别为1～16。两块主控盘IP地址为10.25.100.17。业务槽位MAC地址为：00.0a.88.88.88.40+X.X根据槽位不同而不同，分别为1～16。将子业务框通过上联口级联在一起后，相当于扩展了系统子框的业务槽位数量，可以接入更多的用户，通过系统子框的一个公网IP管理，在用户视图上相当于一个具有更多业务槽位的OLT。
本发明是参照根据本发明实施例的方法、设备(系统)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (10)

  1. 一种PON接入系统子框级联的系统，用于在系统子框上级联扩展子框，其特征在于，所述系统子框和扩展子框均包括：
    级联管理模块，其用于初始化、删除或维护系统子框和扩展子框间的级联状态；
    设备管理模块，其用于完成系统子框和扩展子框间级联端口的配置和数据通路的打通；
    主从通信模块，其用于根据系统子框和扩展子框间的级联状态，为扩展子框的业务盘分配MAC地址和IP，以及建立系统子框和扩展子框间的主从连接；
    所述系统子框还包括数据库，所述数据库用于保存配置数据，所述配置数据包括子框角色、级联子框号和级联端口。
  2. 如权利要求1所述的一种PON接入系统子框级联的系统，其特征在于：所述级联管理模块还用于提供访问系统子框和扩展子框间级联状态信息的接口。
  3. 如权利要求1所述的一种PON接入系统子框级联的系统，其特征在于：所述设备管理模块还用于对扩展子框进行二层交换功能的配置。
  4. 如权利要求1所述的一种PON接入系统子框级联的系统，其特征在于：
    所述系统子框包括数据平面、控制平面和支撑平面；
    所述系统子框的数据库位于数据平面中；
    所述系统子框的级联管理模块和设备管理模块位于控制平面中；
    所述系统子框的主从通信模块位于支撑平面中。
  5. 一种PON接入系统子框级联的方法，其特征在于，包括：
    系统子框进行级联配置，并与扩展子框的主控盘建立连接；
    扩展子框进行级联配置，并与系统子框的主控盘建立连接；
    系统子框和扩展子框间建立主从通信；
    扩展子框进行物理状态上报。
  6. 如权利要求5所述的一种PON接入系统子框级联的方法，其特征在于，所述系统子框和扩展子框均包括级联管理模块、设备管理模块和主从通信模块，所述系统子框还包括数据库，所述系统子框进行级联配置，并与扩展子框的主控盘建立连接，具体步骤包括：
    S101：系统子框配置子框角色、级联子框号和级联端口，生成配置数据；
    S102：级联管理模块校验生成的配置数据，且当配置数据合法时将配置数据保持至系统子框的数据库中；
    S103：级联管理模块调用设备管理模块创建级联通道；
    S104：级联管理模块驱使主从通信模块与扩展子框的主控盘建立连接。
  7. 如权利要求6所述的一种PON接入系统子框级联的方法，其特征在于，所述扩展子框进行级联配置，并与系统子框的主控盘建立连接，具体步骤包括：
    S201：扩展子框配置子框角色、级联子框号和级联端口，生成配置数据；
    S202：级联管理模块校验生成的配置数据；
    S203：级联管理模块调用设备管理模块创建级联通道；
    S204：级联管理模块驱使主从通信模块设置扩展子框主控盘的MAC地址和IP，以及与系统子框的主控盘建立连接。
  8. 如权利要求7所述的一种PON接入系统子框级联的方法，其 特征在于，所述系统子框和扩展子框间建立主从通信，具体步骤包括：
    S301：扩展子框向系统子框发送ADP报文；
    S302：系统子框处理接收的ADP报文以与扩展子框建立TCP链接；
    S303：扩展子框的主控盘向线卡下发用于修正线卡MAC地址和IP的ADP报文，将线卡的MAC地址和IP分配为级联槽位的MAC地址和IP；
    S304：线卡根据下发的ADP报文，修正MAC地址和IP，然后向扩展子框主控盘返回ADP应答；
    S305：扩展子框主控盘接收ADP应答，向系统子框上报线卡的MAC地址和IP信息；
    S306：系统子框基于接收的信息，与扩展子框的线卡建立TCP链接。
  9. 如权利要求8所述的一种PON接入系统子框级联的方法，其特征在于，所述扩展子框进行物理状态上报，具体步骤包括：
    S401：当扩展子框上设备的物理状态发生变化时，扩展子框的设备管理模块通过主从通信模块，向系统子框上报；
    S402：系统子框接收扩展子框上报的物理状态变化，并调用网管代理接口发送给网管进行显示和处理。
  10. 如权利要求9所述的一种PON接入系统子框级联的方法，其特征在于：所述物理状态为扩展子框上线卡电源或风扇设备的物理状态。
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