WO2007076728A1 - Procede et dispositif pour service de transmission utilisant des bus de service de fond de panier - Google Patents

Procede et dispositif pour service de transmission utilisant des bus de service de fond de panier Download PDF

Info

Publication number
WO2007076728A1
WO2007076728A1 PCT/CN2007/000026 CN2007000026W WO2007076728A1 WO 2007076728 A1 WO2007076728 A1 WO 2007076728A1 CN 2007000026 W CN2007000026 W CN 2007000026W WO 2007076728 A1 WO2007076728 A1 WO 2007076728A1
Authority
WO
WIPO (PCT)
Prior art keywords
service
board
backplane
cross
bus
Prior art date
Application number
PCT/CN2007/000026
Other languages
English (en)
French (fr)
Inventor
Jinzhu Chen
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CN2007800001892A priority Critical patent/CN101313481B/zh
Priority to EP07701958A priority patent/EP1971038A4/en
Publication of WO2007076728A1 publication Critical patent/WO2007076728A1/zh
Priority to US12/168,639 priority patent/US20080282013A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/409—Mechanical coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules
    • H04L49/1515—Non-blocking multistage, e.g. Clos
    • H04L49/1523—Parallel switch fabric planes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/55—Prevention, detection or correction of errors
    • H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections

Definitions

  • the present invention relates to the field of service processing of a communication transmission device system, and more particularly to a method and apparatus for transmitting a service using a backplane service bus.
  • the service board includes the circuit board, the cross-connect board, the RPR (Resilient Packet Ring) board, the Ethernet service board, and the ATM (Asynchronous Transfer Mode)/IMA (Inverse Multiplexing over ATM). ) Business board, etc.
  • the circuit board is used to complete the data transmission of the SDH (Synchronous Digital Hierarchy) data.
  • the cross-connect board is used to complete the service cross-connect.
  • the RPR board is used to complete the RPR function. , the service board used to complete the Ethernet data transmission, and the service board used to complete the digital transmission of the broadband integrated service.
  • An IMA service card is used to transmit an ATM cell stream on a cell basis, inversely multiplexed to multiple physical connections, and restore the cell stream transmitted on different physical connections to a single message at the remote end.
  • the service board of the stream Linking many boards together to form a backplane. There are many connectors on the backplane, and other boards are plugged into these connectors. Multiple boards that are inserted on the backplane form a system. Multiple boards can directly exchange information, configuration management, and board power through the backplane.
  • FIG. 1 is a schematic diagram of a typical uplink service processing in the prior art.
  • the processing procedure of the uplink service in the system is as follows: After the service signal sent by the device A is accessed and processed by the receiving service board A of the corresponding function, Through the main backplane service bus 1 fork board (that is, the 1 and 4 services are the same), if the main cross board works normally, the line service board B selects the main cross board through the main back board service bus 2 to cross over. Business and send it to the remote device If the active cross-connector is not working properly, the standby cross-connector works normally.
  • the line service board B selects the service that the alternate cross-board crosses through the standby back-plane service bus 3 and sends it to the remote device C.
  • the service board A sends the services to the primary cross-board and the standby cross-board simultaneously, and the line service board B selects services from the primary cross-board or the standby cross-connect.
  • FIG. 2 is a schematic diagram of a typical downlink service processing in the prior art.
  • the processing procedure of the downlink service in the system is as follows: After the service signal sent by the device C is accessed and processed by the line service board B, the main service is The same service is simultaneously sent to the active cross board and the standby cross board by the backplane service bus 6 and the standby backplane service bus 7, respectively (that is, the services of the 6 and 7 are the same), and if the main cross board works normally, the service board at this time A selects the service that the main cross-board crosses through the main backplane service bus 5, and sends it to the device A after processing.
  • the service board A passes the backup back.
  • the service bus 8 of the board selects the service that the alternate cross-board crosses, and sends it to the device A after processing.
  • the line service board B sends the connected line services to the primary cross board and the standby cross board at the same time, and the service board A selects the service from the main cross board or the standby cross board.
  • the active and standby cross-connects exist in the system of the prior art, and the service bus of the service boards of the service boards is also active and standby.
  • the system determines the use of the main backplane for each service board according to the status of the active and standby cross-connects.
  • the service bus is still using the alternate backplane service bus.
  • the upstream and downstream backplanes have the same bandwidth for the active and standby service buses.
  • the standby bus can only serve as the protection bus for the primary bus.
  • the standby cross-board can only serve as the protection board for the primary cross-board.
  • the problem to be solved by the embodiments of the present invention is to provide a method and device for transmitting services by using a backplane service bus, so as to solve the problem that the utilization rate of the backplane service bus in the prior art is not high.
  • an embodiment of the present invention provides a method for transmitting a service by using a backplane service bus:
  • the backplane allocates the received services into different services
  • the first backplane service bus and the second backplane service bus in the direction of the downlink interface of the backplane simultaneously transmit different services.
  • the embodiment of the present invention further provides an apparatus for transmitting a service by using a backplane service bus, where the apparatus includes: a first service board, a first cross board, a second cross board, a second service board, and a service distribution unit, And the service board and the cross board are connected by a backplane bus, where
  • the service allocation unit is configured to perform service allocation on the received service, and control the first service board or the second service board to simultaneously transmit the allocated different services to the first cross board and the first through different backplane service buses.
  • the first cross board and the second cross board are respectively used to cross the received services, and the intersected services are simultaneously sent to the second service board or the first service board;
  • the second service board or the first service board is configured to simultaneously receive services transmitted from the first cross board and the second cross board through the backplane service bus according to the control of the service allocation unit.
  • the service board in the embodiment of the present invention may be implemented by a data board, a tributary board, a circuit board, an elastic packet ring RPR board, an Ethernet service board, and an asynchronous transfer mode ATM/ATM.
  • the multiplexed IMA service board bears the responsibility.
  • the backplane allocates the received services into different services.
  • the service board passes different services in the uplink interface direction through the first backplane service bus and the second backplane service bus.
  • the first cross board and the second cross board are simultaneously transmitted, and different services from the first cross board and the second cross board are simultaneously transmitted in the downlink interface direction through the first back board service bus and the second back board service bus.
  • the service board of the present invention only selects the service of the primary cross-board or the standby cross-board through the main backplane bus or the backup back-plane bus in the prior art service board, thereby effectively improving the service bus of the backplane.
  • the first cross board and the second cross board work simultaneously as the main board.
  • the bandwidth of the back board of the first service board is doubled, and the second service is used.
  • the downstream bandwidth of the board is doubled, that is, the backplane utilizes twice the bandwidth of the prior art, but is not limited thereto.
  • 1 is a schematic diagram of a typical uplink service processing in the prior art
  • 2 is a schematic diagram of a typical downlink service processing in the prior art
  • FIG. 3 is a schematic structural diagram of an apparatus for transmitting a service by using a backplane service bus according to an embodiment of the present invention
  • FIG. 4 is a flow chart of a method for transmitting a service by using a backplane service bus according to an embodiment of the present invention
  • 4A is a flowchart of a method for transmitting a service by using a backplane service bus in a row interface direction on a backplane in the method of FIG. 4;
  • 4B is a flowchart of a method for transmitting a service by using a backplane service bus in a downlink interface direction of the backplane in the method of FIG. 4;
  • FIG. 5 is a flowchart of processing an uplink service according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of processing a downlink service according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural diagram of an apparatus for transmitting a service by using a backplane service bus according to an embodiment of the present invention.
  • the apparatus includes a first service board 31, a first cross board 32, a second cross board 33, and a second service board 34.
  • the service distribution unit 35, the service board and the cross board are connected by a backplane bus.
  • the service allocation unit 35 may be located on the backplane, or may be located in the first service board 31, or located in the second service board 34 (shown by a broken line in the figure), or may be simultaneously
  • a service board 31 and a second service board 34 are, but are not limited to, the disclosed structure.
  • the service allocation unit 35 is configured to allocate the received service to different services, and control the first service board 31 or the second service board 34 to pass the allocated services through the first backplane service bus and the second back respectively.
  • the board service bus is simultaneously sent to the first cross board 32 and the second cross board 33.
  • the first cross board and the second cross board respectively transmit the received services to the second service board 34 or the first service.
  • the board 31, the second service board 34 or the first service board 31 receives the services transmitted from the first cross board and the second cross board through the backplane service bus according to the control of the service distribution unit 35. However, if the second service board 34 or the first service board 31 has a service board that selects and receives, the selected service may also be selected or received.
  • the service distribution unit 35 When the service distribution unit 35 is located on the first service board 31, the first service board 31 is used.
  • the received service is divided into different services, and is simultaneously sent to the first cross board and the second cross board through the first backplane service bus and the second backplane service bus respectively.
  • the second service board receives or selects to receive from the first backplane service bus and the second backplane service bus according to the manner in which the first service board transmits the service. Business.
  • the first service board 31, the second service board 34, and the service distribution unit 35 are integrated on the same service board.
  • the service board allocation unit includes at least one of the following: a data board, a tributary board, a circuit board, an elastic packet ring RPR board, an Ethernet service board, and an asynchronous transfer mode ATM/ATM reverse multiplexing IMA service board. And transmitting the service to the first cross board and the second cross board simultaneously through the first backplane service bus and the second backplane service bus in the uplink interface direction; passing the first backplane service bus and the second in the downlink interface direction
  • the backplane service bus transmits traffic from the first cross board and the second cross board.
  • FIG. 4 it is a flowchart of a method for transmitting a service by using a backplane service bus according to an embodiment of the present invention.
  • the method includes:
  • Step M10 The service board allocates the received services into different services.
  • Step M12 The first backplane service bus and the second backplane service bus in the direction of the row interface on the backplane simultaneously transmit different services;
  • Step M13 The first backplane service bus and the second backplane service bus in the downlink interface direction simultaneously transmit different services.
  • FIG. 4A and FIG. 4B are flowcharts of a method for transmitting services by using a backplane service bus when transmitting uplink and downlink services;
  • the method includes the steps of:
  • Step S11 The first service board allocates the received service into different services.
  • Step S12 The allocated different services are simultaneously sent to the first cross board and the second cross board through the first backplane service bus and the second backplane service bus respectively;
  • Step S13 After the first cross board and the second cross board respectively cross the received services, the intersected services are simultaneously sent to the second service through the first backplane service bus and the second backplane service bus. Board
  • Step S14 The second service board performs corresponding processing on the received service.
  • Step S21 The second service board allocates the received service into different services.
  • Step S22 Send the allocated different services to the first cross board and the first through the first backplane service bus and the second backplane service bus respectively.
  • Step S23 After the first cross board and the second cross board respectively cross the received services, the intersected services are simultaneously sent to the first service through the first backplane service bus and the second backplane service bus respectively.
  • Step S24 The first service board performs corresponding processing on the received service.
  • the service to be transmitted may be first allocated to different services, and then the allocated service is sent to the first cross board through the first service board or the second service board.
  • the subsequent process on the second cross-board is the same as the above process, and details are not described herein again.
  • first cross board and the second cross board in the embodiment of the present invention are the cross board A and the cross board B in the following embodiments, and the first back board service bus and the second back board service bus are respectively back.
  • the board service bus, and the first service board and the second service board are service board A and service board B, respectively.
  • FIG. 5 is a flowchart of processing an uplink service according to Embodiment 1 of the present invention, and the specific implementation steps thereof include:
  • the service distribution function unit integrated by the service board A divides the service signal into different services
  • the service board A sends different services to the cross board A and the cross board B simultaneously through the backplane service bus 1 and the backplane service bus 4;
  • the cross board A and the cross board B work simultaneously, respectively perform corresponding service crossover, and transmit the intersected services to the service board B having the receiving function through the backplane service bus 2 and the backplane service bus 3;
  • the service board B receives two different services from the cross board A and the cross board B through the backplane service bus 2 and the backplane service bus 3, and processes and sends the information to the device C.
  • the cross board A and the cross board B work simultaneously, and both serve as the main cross board, and different services are transmitted in the back board service buses 1 and 4, that is, the service board A
  • the bandwidth of the row interface direction on the backplane is doubled; transmitted in the backplane service buses 2 and 3.
  • the service board B receives the services transmitted by the cross-board A and the cross-board B through the back-plane service buses 2 and 3, that is, the bandwidth of the downlink interface of the service board B is doubled.
  • the service board A is used as the receiving service board, and is used to receive the service sent by the device A.
  • the service board A integrates the service allocation function unit, allocates the service into different services, and passes the allocated service through the back. Board service bus 1 and backplane service bus 4 transmission;
  • the backplane service bus 1 and the backplane service bus 4 respectively transmit different services allocated by the service board A to the cross board A and the cross board B; the cross board A crosses the services transmitted through the back board service bus 1 to perform service crossover. Transmitting to the service board B through the backplane service bus 2; the cross board B crosses the service transmitted through the backplane service bus 4, and transmits the service to the service board B through the backplane service bus 3;
  • the service board B serves as a transmission service board for simultaneously receiving the services of the cross board A and the cross board B transmitted through the backplane service buses 2 and 3.
  • the service board B integrates the service allocation function unit. Since the service board A divides the receiving service into different services, the service board B receives all the services transmitted by the backplane service buses 2 and 3, and after processing them, sends them to Device C.
  • the service board A functions as a receiving service board, and receives the service sent by the device A, and the same service can be allocated to the main backplane service bus 1 by the integrated service allocation function unit.
  • the backup backplane service bus 4 is simultaneously transmitted;
  • the main backplane service bus 1 and the backup backplane service bus 4 respectively transmit the same service allocated by the service board A to the primary cross board A and the standby cross board B; the main cross board A will pass the main back board service.
  • the service transmitted by the bus 1 crosses the service and is transmitted to the sending service board B through the main backplane service bus 2; the standby cross board B crosses the service transmitted through the standby backplane service bus 4 to perform service crossover, and passes the standby backplane service.
  • the bus 3 transmits the intersected service to the sending service board B;
  • the service board B integrates the service allocation function unit. Since the sending service board A transmits the same service through the main backplane service bus 2 and the standby backplane service bus 3, the main backplane is used. The service of the active cross-board A transmitted by the service bus 2 and the service of the standby cross-board B transmitted through the standby back-plane service bus 3 are selected and received by the service board B, and sent to the device C to implement the active/standby in the communication system.
  • Cross-protected service transmission The first embodiment is compatible with the function of the active/standby cross protection.
  • the service function, the service function, and the service function can be integrated on the same service board.
  • both the service board A and the service board B integrate the receiving service and the sending service function, and also integrate the service. Assignment function.
  • service board A assumes the function of receiving services
  • service board B assumes the function of sending services.
  • the service board B assumes the function of receiving services
  • the service board A assumes the function of sending services and processes the downlink services of the system.
  • FIG. 6 is a flowchart of processing a downlink service according to Embodiment 2 of the present invention, where the implemented steps include:
  • the service board C sends different services to the cross board A and the cross board B through the backplane service bus 6 and the backplane service bus 7 at the same time;
  • the cross board A and the cross board B work at the same time, perform corresponding service crossover, and transmit the intersected services to the service board with the receiving function through the backplane service bus 5 and the backplane service bus 8.
  • the service board A receives two different services from the cross board A and the cross board B through the backplane service bus 5 and the backplane service bus 8, and processes and sends it to the device A;
  • the cross board A and the cross board B work simultaneously, and both serve as the main cross board, and different services are transmitted in the back board service buses 6 and 7, and the back of the service board B
  • the bandwidth of the on-board interface direction is doubled; different services are transmitted in the backplane service buses 5 and 8, and the service board A simultaneously receives the cross-board A and the cross-board B transmitted through the back-plane service buses 5 and 8.
  • Service, the bandwidth of the downlink interface of the backplane of service board A is doubled.
  • the service board B serves as a receiving service board, and is configured to receive the service sent by the device C, and divides the service into different services by the integrated service allocation function unit, and allocates the service to the backplane service bus 6 and the backplane.
  • the backplane service bus 6 and the backplane service bus 7 will receive different services allocated by the service board B, and respectively transmit them to the cross board A and the cross board B; the cross board A crosses the services transmitted through the back board service bus 6 to perform service crossover. Transmitted to the sending service board A through the backplane service bus 5; the cross board B The service transmitted through the backplane service bus 7 is cross-processed and transmitted to the sending service board A through the backplane service bus 8;
  • the service board A serves as a sending service board for receiving the services of the cross board A and the cross board B transmitted through the backplane service buses 5 and 8. Since the sending service board B divides the receiving service into different services, the service board A The services transmitted by the backplane service buses 5 and 8 are all received and sent to the device A after being processed by them.
  • the service board B serves as a receiving service board, receives the service sent by the device C, and can allocate the same service to the main backplane service bus 6 by the integrated service allocation function unit.
  • the backup backplane service bus 7 is simultaneously transmitted;
  • the main backplane service bus 6 and the backup backplane service bus 7 will receive the same service allocated by the service board A, and respectively transmit to the main cross board A and the standby cross board B; the main cross board A will pass the main back board
  • the service transmitted by the service bus 6 crosses the service and is transmitted to the sending service board A through the main backplane service bus 5; the standby cross board B crosses the service transmitted through the standby backplane service bus 7 to perform service crossover, through the standby backplane
  • the service bus 8 is transmitted to the sending service board A; the service board A is used as the sending service board, and since the receiving service board B transmits the same service through the main backplane service bus 6 and the standby backplane service bus 7, respectively,
  • the service of the primary cross-board A transmitted from the main backplane service bus 5 and the service of the standby cross-connect B transmitted through the standby back-plane service bus 8 are selected and received by the service board A to implement the main transmission in the communication system.

Description

一种利用背板业务总线传送业务的方法及装置 本申请要求于 2006 年 1 月 5 日提交中国专利局、 申请号为 200610005639.4、 发明名称为 "一种提高背板业务总线利用率的方法和系 统"的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信传输设备系统的业务处理领域， 尤其涉及一种利用背 板业务总线传送业务的方法及装置。
背景技术
通信传输设备系统中有很多处理业务的板块， 即业务板，用于完成业务 处理功能的单板。 业务板包括线路板、 交叉板、 RPR ( Resilient Packet Ring, 弹性分組环）单板、 以太网业务板和 ATM ( Asynchronous Transfer Mode, 异步传输模式） /IMA ( Inverse Multiplexing over ATM, ATM反向复用） 业 务板等。 其中， 线路板， 用于完成 SDH ( Synchronous Digital Hierarchy, 同 步数字体系）数据传输的业务单板； 交叉板， 用于完成业务交叉的单板； RPR单板， 用于完成 RPR功能的业务单板， 以太网业务板， 用于完成以太 网数据传输的业务单板； ATM业务单板， 用于完成宽带综合业务数字传输 的业务单板。 IMA业务单板， 用于把一个 ATM信元流以信元为基础，反向复 用到多个物理连接上来传输，并在远端把不同物理连接上传输的信元流还原 成单一的信元流的业务单板。 .将许多单板联系在一起构成背板。 一般背板 上具有许多接插件，其他单板插在这些接插件上。插在背板上的多个单板就 组成一个系统， 多个单板可以直接通过背板实现信息交换、 配置管理、 单板 供电等功能。
在通信传输设备系统中， 系统中同时存在主备两块交叉板， 一块是主用 交叉板， 一块是备用交叉板。 如附图 1所示， 图 1是现有技术中典型的上行 业务处理示意图， 系统中的上行业务的处理过程为： 设备 A发出的业务信 号通过相应功能的接收业务板 A接入并处理后， 通过主用背板业务总线① 叉板（即①和④业务相同）， 若主用交叉板工作正常， 此时线路业务板 B通 过主用背板业务总线②选收主用交叉板交叉过来的业务，并发送给远端的设 备 C; 如果主用交叉板工作不正常， 备用交叉板工作正常， 此时线路业务板 B通过备用背板业务总线③选收备用交叉板交叉过来的业务，并发送给远端 的设备 C。 业务板 A将接入的业务同时双发给主交叉板和备用交叉板， 线 路业务板 B选收来自主用交叉板或备用交叉板的业务。
如附图 2所示， 图 2是现有技术中典型的下行业务处理示意图， 系统中 的下行业务的处理过程为： 设备 C发出的业务信号通过线路业务板 B接入 并处理后，通过主用背板业务总线⑥和备用背板业务总线⑦分别将相同的业 务同时发送给主用交叉板和备用交叉板 (即⑥和⑦业务相同）， 若主用交叉 板工作正常， 此时业务板 A通过主用背板业务总线⑤选收主用交叉板交叉 过来的业务， 处理后发送给设备 A; 如果主用交叉板工作不正常， 备用交叉 板工作正常， 此时业务板 A通过备用背板业务总线⑧选收备用交叉板交叉 过来的业务， 处理后发送给设备 A。 线路业务板 B将接入的线路业务同时 双发给主交叉板和备用交叉板， 业务板 A选收来自主用交叉板或备用交叉 板的业务。
由此可见，现有技术方案的系统中同时存在主备交叉板，各业务单板背 板业务总线也分主备， 系统根据主备交叉板的状态， 决定各业务单板使用主 用背板业务总线， 还是使用备用背板业务总线。 各业务单板背板上行（业务 板- >交叉板）接口方向上实现汉发（传输相同的业务）， 下行（交叉板- > 业务板）接口方向上实现选收功能。 上下行背板主备业务总线带宽相等， 备 用总线只能作为主用总线的保护总线，备用交叉板只能作为主用交叉板的保 护单板。 发明人在发明过程中发现： 业务单板背板业务总线分主备之分， 系 统总线利用率不高。
发明内容
本发明实施例解决的问题是提供一种利用背板业务总线传送业务的方 法及装置， 以解决现有技术中背板业务总线的利用率不高的问题。
为解决上述技术问题，本发明实施例提供一种利用背板业务总线传送业 务的方法：
背板将接收到的业务分配成不同的业务；
背板上行接口方向的第一背板业务总线和第二背板业务总线同时传输 不同业务；
背板下行接口方向的第一背板业务总线和第二背板业务总线同时传输 不同业务。
另外，本发明实施例还提供一种利用背板业务总线传送业务的装置， 所 述装置包括： 包括第一业务板、 第一交叉板、 第二交叉板、 第二业务板以 及业务分配单元， 且所述业务板和交叉板通过背板总线相连， 其中，
所述业务分配单元， 用于对接收的业务进行业务分配， 并控制第一业务 板或第二业务板将分配后的不同业务分别通过不同的背板业务总线同时传 输给第一交叉板和第二交叉板；
所述第一交叉板和第二交叉板，分别用于对接收到的业务进行交叉， 并 将交叉后的业务同时发送给第二业务板或第一业务板；
所述第二业务板或第一业务板，用于根据所述业务分配单元的控制，对 通过背板业务总线从第一交叉板和第二交叉板传送来的业务同时进行接收。
由上述公开的技术方案可知，本发明实施例所述的业务板可以由数据单 板、 支路单板、 线路板、 弹性分组环 RPR单板、 以太网业务板和异步转移 模式 ATM/ATM反向复用 IMA业务板来承担， 首先， 背板将接收到的业务 分配成不同的业务； 然后， 业务板在上行接口方向通过第一背板业务总线和 第二背板业务总线将不同的业务同时发送给第一交叉板和第二交叉板，在下 行接口方向通过第一背板业务总线和第二背板业务总线同时传输来自第一 交叉板和第二交叉板的不同业务。 由此可见，本发明实施例相对于现有技术 中业务板通过主用背板总线或备用背板总线只选收主用交叉板或备用交叉 板的业务， 有效的提高了背板业务总线的利用率， 比如， 在上行业务中， 所 述第一交叉板和第二交叉板同时工作， 都作为主用单板， 此时， 第一业务板 的背板上行带宽增加一倍， 第二业务板的下行带宽增加一倍， 即背板利用带 宽可以达到现有技术的两倍， 但并不限于此。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部 分， 并不构成对本发明的限定。 在附图中：
图 1是现有技术中典型的上行业务处理示意图； 图 2是现有技术中典型的下行业务处理示意图；
图 3 是为本发明实施例所述利用背板业务总线传送业务的装置的结构 示意图；
图 4是为本发明实施例所述利用背板业务总线传送业务的方法的流程 图；
图 4A是图 4所述方法中在背板上行接口方向上利用背板业务总线传送 业务的方法的流程图；
图 4B是图 4所述方法中在背板下行接口方向上利用背板业务总线传送 业务的方法的流程图；
图 5是为本发明实施例一的处理上行业务的流程图；
图 6是为本发明实施例二的处理下行业务的流程图。
具体实施方式
下面结合附图， 对本发明的实施方案进行详细描述。 在此， 本发明的示 意性实施例及其说明用于解释本发明 , 但并不作为对本发明的限定。
请参阅图 3 , 为本发明实施例利用背板业务总线传送业务的装置的结构 示意图， 所述装置包括第一业务板 31、 第一交叉板 32、 第二交叉板 33、 第 二业务板 34和业务分配单元 35 , 所述业务板和交叉板通过背板总线相连。 在本发明实施例中， 所述业务分配单元 35可以位于背板上， 也可以位于第 一业务板 31中， 或者位于第二业务板 34中 （图中虛线所示）， 也可以同时 第一业务板 31和第二业务板 34上， 但并不限于所公开的这种结构。
其中， 所述业务分配单元 35用于将接收到的业务分配成不同业务， 并 控制第一业务板 31或第二业务板 34将分配后的业务分别通过第一背板业务 总线和第二背板业务总线同时发送给第一交叉板 32和第二交叉板 33; 所述 第一交叉板和第二交叉板分别对接收到的业务进行交叉后同时发送给第二 业务板 34或第一业务板 31 , 所述第二业务板 34或第一业务板 31根据业务 分配单元 35的控制， 通过背板业务总线从第一交叉板和第二交叉板传输来 的业务同时进行接收。但是如果第二业务板 34或第一业务板 31具有选择接 收的业务板， 也可以对传输来的业务进行选择接收或全部接收。
当所述业务分配单元 35位于第一业务板 31上， 用于将第一业务板 31 接收的业务分成不同的业务，分别通过第一背板业务总线和第二背板业务总 线同时发送给第一交叉板和第二交叉板。 当所述业务分配单元 35位于第二 业务板 34上， 用于根据第一业务板传输业务的方式， 第二业务板全部接收 或者选择接收来自第一背板业务总线和第二背板业务总线的业务。所述第一 业务板 31、 第二业务板 34和业务分配单元 35集成在同一个业务板上。
所述业务板分配单元至少包括下述一种： 数据单板、 支路单板、 线路 板、 弹性分组环 RPR单板、 以太网业务板和异步转移模式 ATM/ATM反向 复用 IMA业务板， 用于在上行接口方向通过第一背板业务总线和第二背板 业务总线同时将业务发送给第一交叉板和第二交叉板；在下行接口方向通过 第一背板业务总线和第二背板业务总线传输来自第一交叉板和第二交叉板 的业务。
还请参阅图 4, 为本发明实施例所述利用背板业务总线传送业务的方法 的流程图。 所述方法包括：
步骤 M10: 业务板将接收的业务分配成不同的业务；
步骤 M12: 背板上行接口方向的第一背板业务总线和第二背板业务总 线同时传输不同业务；
步驟 M13: 下行接口方向的第一背板业务总线和第二背板业务总线同 时传输不同业务。
所述方法的具体过程还请参阅图 4A和图 4B, 分別为在传送上行和下 行业务时， 利用背板业务总线传送业务的方法的流程图；
如图 4A所示， 所述方法包括步骤：
步驟 S 11： 第一业务板将接收的业务分配成不同的业务；
步骤 S12: 将所分配的不同业务分别通过第一背板业务总线和第二背 板业务总线同时发送给第一交叉板和第二交叉板；
步骤 S13: 所述第一交叉板和第二交叉板分别对接收到的业务进行交 叉后，将交叉后的业务分别通过第一背板业务总线和第二背板业务总线同时 发送给第二业务板；
步驟 S14: 第二业务板对接收的业务进行相应的处理。
如图 4B所示， 在传送下行业务时， 所述方法包括步骤： 步驟 S21: 第二业务板将接收的业务分配成不同的业务； 步骤 S22: 将所分配的不同业务分别通过第一背板业务总线和第二背 板业务总线同时发送给第一交叉板和第二交叉板；
步驟 S23: 所述第一交叉板和第二交叉板分別对接收到的业务进行交 叉后，将交叉后的业务分別通过第一背板业务总线和第二背板业务总线同时 发送给第一业务板；
步驟 S24: 第一业务板对接收的业务进行相应的处理。
其外，在传输上行或下行的业务时，也可以先将需要传送的业务分配成 不同的业务，然后再将分配后的业务通过第一业务板或第二业务板发送到第 一交叉板和第二交叉板上， 其后续过程与上述过程相同， 在此不再赘述。
为了便于本领域技术人员的理解， 下面结合具体的实施例来说明本发 明。 为了便于理解，本发明实施例所述第一交叉板和第二交叉板为下述实施 例中的交叉板 A和交叉板 B, 第一背板业务总线和第二背板业务总线分別 为背板业务总线， 以及第一业务板和第二业务板分别为业务板 A和业务板 B。
倩参阅图 5, 为本发明实施例一的处理上行业务的流程图， 其具体的实 现步骤包括：
S51.设备 A发出的业务信号通过具有接收功能的业务板 A接入并处理 后， 由业务板 A集成的业务分配功能单元将其分成不同的业务；
S52.业务板 A通过背板业务总线①和背板业务总线④将不同的业务分别 同时发送给交叉板 A和交叉板 B;
S53.所述交叉板 A和交叉板 B同时工作， 分別进行相应的业务交叉， 将 交叉后的业务通过背板业务总线②和背板业务总线③传送给具有接收功能 的业务板 B;
S54.所述业务板 B通过背板业务总线②和背板业务总线③同时接收来自 交叉板 A和交叉板 B的两份不同的业务， 处理后发送给设备 C。
其中， 在本实施例一的处理过程中， 交叉板 A和交叉板 B同时工作， 都 作为主用交叉板，在背板业务总线①和④中传输的是不同的业务， 即业务板 A的背板上行接口方向的带宽增加了一倍； 在背板业务总线②和③中传输的 是不同的业务，业务板 B同时接收交叉板 A和交叉板 B通过背板业务总线②和 ③传输来的业务， 即业务板 B的背板下行接口方向带宽增加了一倍。
在本实施例一中， 业务板 A作为接收业务板， 用于接收设备 A发送来 的业务， 业务板 A集成了业务分配功能单元， 将业务分配成不同业务， 并 将该分配的业务通过背板业务总线①和背板业务总线④传输；
所述背板业务总线①和背板业务总线④将业务板 A分配的不同业务， 分别传送给交叉板 A和交叉板 B; 交叉板 A将通过背板业务总线①传送过 来的业务进行业务交叉， 通过背板业务总线②传输到业务板 B; 交叉板 B 将通过背板业务总线④传送过来的业务进行业务交叉，通过背板业务总线③ 传输到业务板 B;
业务板 B作为发送业务板， 用于同时接收通过背板业务总线②和③传 输过来的交叉板 A和交叉板 B的业务。业务板 B集成了业务分配功能单元， 由于发送业务板 A将接收业务分成不同的业务， 因此业务板 B对于背板业 务总线②和③传输过来的业务全部接收， 并且对他们处理过后，发送给设备 C。
此外， 在本实施例的装置中， 业务板 A作为接收业务板， 接收设备 A 发送来的业务， 可以由集成的业务分配功能单元， 将相同的业务， 分配给主 用背板业务总线①和备用背板业务总线④同时传输；
主用背板业务总线①和备用背板业务总线④将业务板 A分配的相同的 业务， 分别传送给主用交叉板 A和备用交叉板 B; 主用交叉板 A将通过主 用背板业务总线①传送过来的业务进行业务交叉，通过主用背板业务总线② 传输到发送业务板 B; 备用交叉板 B将通过备用背板业务总线④传送过来 的业务进行业务交叉，通过备用背板业务总线③将交叉后的业务传输到发送 业务板 B;
业务板 B作为发送业务板， 集成了业务分配功能单元， 由于发送业务 板 A是将相同的业务分别通过主用背板业务总线②和备用背板业务总线③ 传输， 因此， 通过主用背板业务总线②传输过来的主用交叉板 A的业务， 和通过备用背板业务总线③传输过来的备用交叉板 B 的业务， 被业务板 B 选择接收， 发送给设备 C, 实现通信系统中主备交叉保护的业务传输， 也就 是本实施例一兼容了主备交叉保护的功能。
接收业务功能、 发送业务功能和业务分配功能可以集成在同一块业务 板， 在实施例一的设备 B中， 业务板 A和业务板 B都集成了接收业务和发 送业务功能， 并且还集成了业务分配功能。 在处理上行业务过程中， 业务板 A承担接收业务功能， 业务板 B承担发送业务功能。 在下边的具体实施例 二中， 业务板 B承担接收业务功能， 业务板 A承担发送业务功能， 处理系 统的下行业务。
再请参阅图 6, 为本发明实施例二的处理下行业务的流程图， 其实现的 步骤包括：
S61.设备 C发出的业务信号通过具有接收业务功能的业务板 B接入并处 理后， 由业务板 B集成的业务分配功能单元分配成不同的业务；
S62. 业务板 C通过背板业务总线⑥和背板业务总线⑦将不同的业务分 别同时发送给交叉板 A和交叉板 B;
562.交叉板 A和交叉板 B同时工作， 进行相应的业务交叉， 将交叉后的 业务通过背板业务总线⑤和背板业务总线⑧传送给具有接收功能的业务板
A;
563.业务板 A通过背板业务总线⑤和背板业务总线⑧同时接收来自交叉 板 A和交叉板 B的两份不同的业务， 处理后发送给设备 A;
其中在本实施例二的处理过程中， 交叉板 A和交叉板 B同时工作， 都作 为主用交叉单板， 在背板业务总线⑥和⑦中传输的是不同的业务， 业务板 B 的背板上行接口方向的带宽增加了一倍；在背板业务总线⑤和⑧中传输的是 不同的业务， 业务板 A同时接收交叉板 A和交叉板 B通过背板业务总线⑤和 ⑧传输来的业务， 业务板 A的背板下行接口方向带宽增加了一倍。
在本实施例二中， 业务板 B作为接收业务板， 用于接收设备 C发送来的 业务， 并且由集成的业务分配功能单元， 将业务分成不同业务， 分配给背板 业务总线⑥和背板业务总线⑦传输；
背板业务总线⑥和背板业务总线⑦将接收业务板 B分配的不同业务， 分 别传送给交叉板 A和交叉板 B; 交叉板 A将通过背板业务总线⑥传送过来的 业务进行业务交叉， 通过背板业务总线⑤传输到到发送业务板 A; 交叉板 B 将通过背板业务总线⑦传送过来的业务进行业务交叉，通过背板业务总线⑧ 传输到发送业务板 A;
业务板 A作为发送业务板， 用于接收通过背板业务总线⑤和⑧传输过来 的交叉板 A和交叉板 B的业务，由于发送业务板 B是将接收业务分成不同的业 务， 因此业务板 A对于背板业务总线⑤和⑧传输过来的业务全部接收， 并且 对他们处理过后， 发送给设备 A。
此外， 在本实施例的装置中， 业务板 B作为接收业务板， 接收设备 C发 送来的业务， 并且可以由集成的业务分配功能单元将相同的业务，分配给主 用背板业务总线⑥和备用背板业务总线⑦同时传输；
主用背板业务总线⑥和备用背板业务总线⑦将接收业务板 A分配的相 同的业务， 分别传送给主用交叉板 A和备用交叉板 B; 主用交叉板 A将通过 主用背板业务总线⑥传送过来的业务进行业务交叉，通过主用背板业务总线 ⑤传输到发送业务板 A; 备用交叉板 B将通过备用背板业务总线⑦传送过来 的业务进行业务交叉， 通过备用背板业务总线⑧传输到到发送业务板 A; 业务板 A作为发送业务板， 由于接收业务板 B是将相同的业务分别通 过主用背板业务总线⑥和备用背板业务总线⑦传输， 因此，通过主用背板业 务总线⑤传输过来的主用交叉板 A的业务， 和通过备用背板业务总线⑧传 输过来的备用交叉板 B的业务， 被业务板 A选择接收， 实现通信系统传输 中的主备交叉保护的业务传输，也就是本实施例二兼容了主备交叉保护的功 能。
以上所述仅为本发明的实施例而已， 并不用以限制本发明， 凡在本发明 的精神和原则之内所作的任何修改、等同替换和改进等， 均应包含在本发明 的保护范围之内。

Claims

权 利 要 求
1. 一种利用背板业务总线传送业务的方法， 其特征在于：
将背板接收到的业务分配成不同的业务；
背板上行接口方向的第一背板业务总线和第二背板业务总线同时传输 不同业务；
背板下行接口方向的第一背板业务总线和第二背板业务总线同时传输 不同业务。
2. 如权利要求 1 所述的利用背板业务总线传送业务的方法， 其特征 在于， 所述方法的具体过程为：
在上行业务时， 第一业务板将接收的业务分配成不同的业务； 将所分配的不同业务分别通过第一背板业务总线和第二背板业务总 线同时发送给第一交叉板和第二交叉板；
所述第一交叉板和第二交叉板分别对接收到的业务进行交叉， 并将交 叉后的业务分别通过第一背板业务总线和第二背板业务总线同时发送给第 二业务板。
3. 如权利要求 1 所述的利用背板业务总线传送业务的方法， 其特征 在于： 所述方法的具体过程为：
在下行业务时， 第二业务板将接收的业务分配成不同的业务； 将所分配的不同业务分别通过第二背板业务总线和第一背板业务总 线同时发送给第二交叉板和第一交叉板；
所述第二交叉板和第一交叉板分别对接收到的业务进行交叉， 并将交 叉后的业务分别通过第二背板业务总线和第一背板业务总线同时发送给第 一业务板。
4. 一种利用背板业务总线传送业务的装置， 包括： 第一业务板、 第一 交叉板、第二交叉板和第二业务板，且所述业务板和交叉板通过背板总线相 连， 其特征在于： 所述装置还包括：
业务分配单元， 用于对接收的业务进行业务分配， 并控制第一业务板或 第二业务板将分配后的不同业务分别通过不同的背板业务总线同时传输给 第一交叉板和第二交叉板； 其中， 所述第一交叉板和第二交叉板，分别用于对接收到的业务进行交叉， 并 将交叉后的业务同时发送给第二业务板或第一业务板；
所述第二业务板或第一业务板，用于根据所述业务分配单元的控制，对 通过背板业务总线从第一交叉板和第二交叉板传送来的业务同时进行接收。
5. 如权利要求 4所述的利用背板业务总线传送业务的装置，其特征在 于： 所述不同的背板业务总线至少包括第一业务总线和第二业务总线。
6. 如权利要求 4所述的利用背板业务总线传送业务的装置， 其特征 在于： 所述业务分配单元位于第一业务板上， 用于将不同的业务同时发送至 第一交叉板和第二交叉板。
7. 如权利要求 4所述的利用背板业务总线传送业务的装置，其特征在 于： 所述业务分配单元位于第二业务板上， 用于根据第一业务板传输业务的 方式， 第二业务板同时接收第一交叉板和第二交叉板分别交叉后的业务。
8. 如权利要求 4所述的利用背板业务总线传送业务的装置，其特征在 于： 所述第一业务板、 第二业务板和业务分配单元集成在同一个业务板上。
9、 如权利要求 4、 6、 7、 8任一项所述的利用背板业务总线传送业务 的装置， 其特征在于： 所述业务板分配单元至少包括下述一种：
数据单板、 支路单板、 线路板、 弹性分组环单板、 以太网业务板和异步 转移模式 /异步转移模式反向复用业务板， 用于在上行接口方向通过第一背 板业务总线和第二背板业务总线同时将业务发送给第一交叉板和第二交叉 板；在下行接口方向通过第一背板业务总线和第二背板业务总线同时传输来 自第一交叉板和第二交叉板的业务。
PCT/CN2007/000026 2006-01-05 2007-01-05 Procede et dispositif pour service de transmission utilisant des bus de service de fond de panier WO2007076728A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2007800001892A CN101313481B (zh) 2006-01-05 2007-01-05 一种利用背板业务总线传送业务的方法及装置
EP07701958A EP1971038A4 (en) 2006-01-05 2007-01-05 METHOD AND DEVICE FOR TRANSMISSION SERVICE USING BACKPLANE SERVICE BOOKS
US12/168,639 US20080282013A1 (en) 2006-01-05 2008-07-07 Method and Device for Transmission Service Using Backplane Service Buses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610005639.4 2006-01-05
CN2006100056394A CN1996993B (zh) 2006-01-05 2006-01-05 一种提高背板业务总线利用率的方法和系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/168,639 Continuation US20080282013A1 (en) 2006-01-05 2008-07-07 Method and Device for Transmission Service Using Backplane Service Buses

Publications (1)

Publication Number Publication Date
WO2007076728A1 true WO2007076728A1 (fr) 2007-07-12

Family

ID=38227924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/000026 WO2007076728A1 (fr) 2006-01-05 2007-01-05 Procede et dispositif pour service de transmission utilisant des bus de service de fond de panier

Country Status (4)

Country Link
US (1) US20080282013A1 (zh)
EP (1) EP1971038A4 (zh)
CN (2) CN1996993B (zh)
WO (1) WO2007076728A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022021253A1 (zh) * 2020-07-30 2022-02-03 华为技术有限公司 通信方法和通信装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159990B (zh) * 2007-09-13 2010-07-14 中兴通讯股份有限公司 一种传输设备业务板总线选择方法
CN101394329B (zh) * 2008-10-09 2012-05-23 华为技术有限公司 并行系统总线结构及其端口配置管理方法
CN101848402B (zh) * 2009-03-25 2013-01-16 中兴通讯股份有限公司 数据传输装置、系统及方法
CN101895790A (zh) * 2010-07-22 2010-11-24 中兴通讯股份有限公司 一种sdh设备的槽位布局方法及装置
US9934187B2 (en) * 2014-12-17 2018-04-03 Quanta Computer Inc. Hot-pluggable computing system
CN106487721B (zh) * 2015-08-25 2019-10-08 新华三技术有限公司 网络设备和用于网络设备中的报文转发方法
CN106850461B (zh) * 2017-03-03 2020-08-25 深圳市风云实业有限公司 转发板通道复用方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040184249A1 (en) * 2003-03-20 2004-09-23 3Com Corporation Backplane apparatus and board for use therewith
CN1630377A (zh) * 2003-12-18 2005-06-22 华为技术有限公司 一种传输设备硬件平台
CN1661974A (zh) * 2004-02-25 2005-08-31 华为技术有限公司 一种宽带接入的组网设备及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129078A (en) * 1988-08-19 1992-07-07 Groves Stanley E Dedicated service processor with inter-channel communication features
US6654370B1 (en) * 2000-06-30 2003-11-25 Marconi Communications, Inc. Backplane synchronization in a distributed system with clock drift and transport delay
US6925516B2 (en) * 2001-01-19 2005-08-02 Raze Technologies, Inc. System and method for providing an improved common control bus for use in on-line insertion of line replaceable units in wireless and wireline access systems
US7180867B2 (en) * 2000-12-26 2007-02-20 Lucent Technologies Inc. Apparatus and method for flow path based fault detection and service restoration in a packet based switching system
EP1328085A1 (en) * 2002-01-15 2003-07-16 Evolium S.A.S. Method and apparatus for healing of failures for chained boards with SDH interfaces
US7304941B2 (en) * 2002-04-11 2007-12-04 International Business Machines Corporation Switchover system and method in a data packet switching network
US7154902B1 (en) * 2002-10-21 2006-12-26 Force10 Networks, Inc. Epoch-based packet switching
US20040255186A1 (en) * 2003-05-27 2004-12-16 Lucent Technologies, Inc. Methods and apparatus for failure detection and recovery in redundant systems
US20050226148A1 (en) * 2004-04-12 2005-10-13 Nortel Networks Limited Method and apparatus for enabling redundancy in a network element architecture
US7321948B1 (en) * 2005-03-30 2008-01-22 Emc Corporation Highly available system test mechanism
KR101058040B1 (ko) * 2006-12-21 2011-08-19 삼성전자주식회사 컨텐츠 출력 방법 및 그 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040184249A1 (en) * 2003-03-20 2004-09-23 3Com Corporation Backplane apparatus and board for use therewith
CN1630377A (zh) * 2003-12-18 2005-06-22 华为技术有限公司 一种传输设备硬件平台
CN1661974A (zh) * 2004-02-25 2005-08-31 华为技术有限公司 一种宽带接入的组网设备及方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1971038A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022021253A1 (zh) * 2020-07-30 2022-02-03 华为技术有限公司 通信方法和通信装置

Also Published As

Publication number Publication date
US20080282013A1 (en) 2008-11-13
CN101313481B (zh) 2011-11-23
EP1971038A1 (en) 2008-09-17
EP1971038A4 (en) 2009-04-15
CN1996993A (zh) 2007-07-11
CN101313481A (zh) 2008-11-26
CN1996993B (zh) 2010-08-04

Similar Documents

Publication Publication Date Title
CN1193549C (zh) 具有网格化底板的系统以及用于通过该系统传输数据的过程
WO2007076728A1 (fr) Procede et dispositif pour service de transmission utilisant des bus de service de fond de panier
US6188687B1 (en) Broadband switch that manages traffic and method therefor
CA2219524C (en) Method, device and data communication system for multilink polling
US5991831A (en) High speed serial communications link for desktop computer peripherals
CN108965157B (zh) 数据传输方法、装置、设备及系统
WO2001045334A1 (en) Backplane architecture for dynamic synchronous transfer mode
CN101946524B (zh) 用于在千兆位无源光网络上提供双速率传输的系统、方法和计算机可读介质
JPH06237259A (ja) データ通信方式
US5533017A (en) Line interface device for fast-packet switching network
WO1997009827A1 (en) A distribution system
JP4680766B2 (ja) デジタル・ネットワークにおける適応帯域幅利用のための方法および装置
CN109039892B (zh) 一种业务的传输方法、网络设备及网络系统
CN101159694B (zh) 一种ip共享的分布式系统避免分片重组失败的方法
US7263101B2 (en) Host digital terminal
JP2595350B2 (ja) 分散制御高速接続回路スイッチ
JP4754951B2 (ja) デジタル・ネットワークにおける改善されたデータ・チャネル伝送のための方法および装置
JP2004040777A (ja) アクセスネットワークへ／からの広帯域ネットワークトラフィックの伝送のための区分されたインターフェイス構成
Bohm The DTM protocol: Design and Implementation
JP5116495B2 (ja) 光通信システム及び局側装置
KR100314582B1 (ko) 디스램 시스템의 가입자보드 확장을 위한 제어메시지 관리방법
AU717210B2 (en) A distribution system
JP3203596B2 (ja) フレ−ム同報転送システム
JP2001034575A (ja) ビデオ／ネットワーク・インタフェース装置
JP3246548B2 (ja) 多重化装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780000189.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007701958

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2007701958

Country of ref document: EP