WO2016112752A1 - 一种点到多点业务传输方法和装置 - Google Patents

一种点到多点业务传输方法和装置 Download PDF

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Publication number
WO2016112752A1
WO2016112752A1 PCT/CN2015/096299 CN2015096299W WO2016112752A1 WO 2016112752 A1 WO2016112752 A1 WO 2016112752A1 CN 2015096299 W CN2015096299 W CN 2015096299W WO 2016112752 A1 WO2016112752 A1 WO 2016112752A1
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Prior art keywords
node
path
service data
root
state
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PCT/CN2015/096299
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English (en)
French (fr)
Inventor
孙光辉
徐前锋
向艳稳
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP15877663.3A priority Critical patent/EP3240246A4/en
Priority to KR1020177022391A priority patent/KR20170103927A/ko
Priority to JP2017537361A priority patent/JP2018502518A/ja
Publication of WO2016112752A1 publication Critical patent/WO2016112752A1/zh
Priority to US15/650,588 priority patent/US20170317924A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H04L45/247—Multipath using M:N active or standby paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/22—Alternate routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]

Definitions

  • the present invention relates to the field of communications, and in particular, to a point-to-multipoint service transmission method and apparatus.
  • Point to Multiple Point (English: Point To Multiple Point, abbreviation: P2MP) is an important business model in Ethernet.
  • the P2MP service is a one-way service, and the service is transmitted from the root node (or the source end) of the network to the leaf node (or the sink end).
  • the P2MP service generally has two paths: the primary path can be understood as the working path, and the standby path can be understood as the protection path.
  • the primary path fails, the primary path is used for service transmission.
  • the secondary path is used for service transmission.
  • both the primary path and the standby path are faulty, the service data delivered by the root node cannot be transmitted to the leaf node.
  • the primary path includes: a root node A-node B-foliage node D
  • the standby path includes: a root node A-node C-foliage node D, if the path between the node B and the leaf node D fails, and the root node A
  • the path to the node C also fails, the service data delivered by the root node A cannot be transmitted to the leaf node D. It can be seen that the protection capability of the service transmission in the current P2MP service is not strong.
  • the present invention provides a point-to-multipoint service transmission method and apparatus, which can improve the protection capability of service transmission in a P2MP service.
  • the present invention provides a point-to-multipoint service transmission method for a network including a root node, a first node, a second node, and a plurality of leaf nodes, where the first node connects through the first path. a root node, the second node connecting the root node by using a second path, where the The leaf nodes are dual-homed to the first node and the second node, and the first node and the second node are in a master-slave relationship.
  • the first node is connected to the second node by using a first additional path, where the first additional path and the second path form a first protection path of the first node connecting the root node, the first The protection path is used to transmit service data that is sent by the root node to the first node by using the second node;
  • the second node is connected to the first node by using a second additional path, where the second additional path and the first path form a second protection path of the second node connecting the root node, the second The protection path is configured to transmit service data that is sent by the root node to the second node by using the first node;
  • the method includes:
  • the first node When the state of the first node is active and the state of the second node is standby, if the first path fails, the first node receives the root node from the first protection path Transmitted business data;
  • the first node forwards the service data to the plurality of leaf nodes.
  • the method when the state of the first node is active, and the state of the second node is standby, the method further includes:
  • the first node receives the service data sent by the root node from the first path, and forwards the service data to the multiple leaf nodes.
  • the method further includes:
  • the method further includes:
  • the first node When the state of the first node is standby and the state of the second node is active, if the first path does not fail, the first node receives the root node from the first path
  • the service data sent by the point the service data is forwarded to the second node by using the second additional path, so that the second node receives the service data sent by the root node from the second protection path. .
  • the present invention provides a point-to-multipoint service transmission apparatus for a network including a root node, the first node, a second node, and a plurality of leaf nodes, where the apparatus is deployed on the first node.
  • the first node connects to the root node by using a first path
  • the second node connects the root node by using a second path
  • the multiple leaf nodes being dual-homed to the first node and the second node a node
  • the first node and the second node are in a master-slave relationship
  • the device is connected to the second node by using a first additional path, where the first additional path and the second path constitute a first protection path of the first node connecting the root node, the first protection path Transmitting, by the root node, service data sent by the second node to the first node;
  • the second node is connected to the device by a second additional path, and the second additional path and the first path constitute a second protection path of the second node connecting the root node, the second protection path And transmitting, by the root node, service data sent by the first node to the second node;
  • the device includes: a first receiving unit and a first forwarding unit, wherein:
  • the first receiving unit is configured to: when the state of the first node is active, and the state of the second node is standby, if the first path fails, receive from the first protection path Service data sent by the root node;
  • the first forwarding unit is configured to forward the service data to the multiple leaf nodes.
  • the device further includes:
  • a second receiving unit configured to: when the state of the first node is active, and the state of the second node is standby, if the first path does not fail, receive the first path Describe the service data sent by the root node;
  • a second forwarding unit configured to forward the service data received by the second receiving unit to the multiple leaf nodes.
  • the device further includes:
  • a third forwarding unit configured to forward the service data received by the second receiving unit to the second node by using the second additional path, so that the second node receives the root from the second protection path The business data sent by the node.
  • the apparatus further includes:
  • a third receiving unit configured to: when the state of the first node is standby, and the state of the second node is active, if the first path does not fail, the root is received from the first path Business data sent by the node;
  • a fourth forwarding unit configured to forward the service data received by the third receiving unit to the second node by using the second additional path, so that the second node receives the root from the second protection path The business data sent by the node.
  • the first node is connected to the second node by using a first additional path, and the first additional path and the second path constitute a first protection path of the first node connecting the root node
  • the first protection path is used to transmit service data that is sent by the root node to the first node by using the second node; and the second node is connected to the first node by using a second additional path,
  • the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node to be sent by the first node to the Service data of the second node; when the state of the first node is active, and the state of the second node is standby, if the first path fails, the first node is from the first
  • the protection path receives the service data sent by the root node; the first node forwards the service data to the plurality of leaf nodes. In this way, when the first path fails, the first node can receive the service data sent by the root node
  • FIG. 1 is a schematic diagram of a network architecture of a point-to-multipoint service transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a point-to-multipoint service transmission method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another point-to-multipoint service transmission method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a point-to-multipoint service transmission apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of another point-to-multipoint service transmission apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another point-to-multipoint service transmission apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a network architecture of a point-to-multipoint service transmission method according to an embodiment of the present invention.
  • the network architecture includes a root node 101, a first node 102, a second node 103, and a plurality of leaf nodes 104.
  • the first node 101 connects to the root node 101 through the first path L1, and the second node 102 passes the first node.
  • the second path L2 is connected to the root node 101, and the plurality of leaf nodes 104 are dual-homed to the first node 102 and the second node 103.
  • the first node 102 and the second node 103 are in a master-slave relationship.
  • the first path L1 may be a path directly connected to the root node 101 by the first node 102.
  • the first path L1 may be a path in which the first node 102 is indirectly connected to the root node 101, that is, the path may include One or more intermediate nodes, for the same reason, the second path L2 may also be a direct connection or an indirect connection path.
  • the plurality of leaf nodes 104 are dual-homed The first node 102 and the second node 103 can be understood to mean that the plurality of leaf nodes 104 are connected to the first node 102 and also to the second node 103.
  • the node in which the state is the primary is responsible for forwarding the service data sent by the root node 101 to the plurality of leaf nodes 104, and the node whose state is the standby node does not go to the plurality of nodes.
  • the leaf node 104 forwards the service data transmitted by the root node 101.
  • the first node 102 may be connected to the second node 103 through the first additional path L3, and the first additional path L3 and the second path L2 constitute a first protection path of the first node 102 connecting the root node 101.
  • the first protection path is used to transmit the service data that the root node 101 sends to the first node 102 through the second node 103;
  • the second node 103 is connected to the first node 102 through the second additional path L4, and the second additional path L4 and the first path L1 constitute a second protection path of the second node 103 connecting the root node 101, and the second protection path is used for the second protection path.
  • the protection capability of the service transmission in the P2MP service can be improved by the first additional path L3 and the second additional path L4.
  • first additional path L3 and the second additional path L4 may be directly connected paths or indirectly connected paths.
  • the first node 102 and the second node 103 may be any device that can support point-to-multipoint service transmission, such as a switch, a router, etc., and the first node 102 and the second node 103 are located.
  • the network layer is also not limited.
  • the first node 102 and the second node 103 may be devices in the core layer, the aggregation layer, or the access layer.
  • the embodiment of the present invention can be applied to an Ethernet network, or a multi-protocol label switching (English name: Multi-Protocol Label Switching, English abbreviation: MPLS) network and other service data in a unidirectional transmission network.
  • MPLS Multi-Protocol Label Switching
  • FIG. 2 is a schematic flowchart of a point-to-multipoint service transmission method according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • the first node receives the industry sent by the root node from the first protection path. Data.
  • first path and the first protection path in the method may be the first path and the first protection path in the network architecture shown in FIG. 1, and are not repeatedly described herein.
  • the state of the first node is the primary one, and the state of the second node is the standby, which may be understood as that the plurality of leaf nodes currently select to receive the service data sent by the root node by using the first node; the current first node to the multiple The path between the leaf nodes did not fail.
  • the second node is used as a standby node, and does not forward the service data sent by the root node to the plurality of leaf nodes. .
  • the first node when the first path fails, the first node cannot receive the service data sent by the root node by using the first path.
  • the receiving, by the first node, the service data sent by the root node from the first protection path is that the first node receives the service data that is sent by the root node to the first node by using the second node, that is, The first node receives the service data sent by the root node received by the second node from the second path from the first additional path.
  • the first node forwards the service data to the multiple leaf nodes.
  • the first node may receive the first protection path from the first protection path.
  • the business data sent by the root node when the first path fails, the first node may also receive the service data sent by the root node, and forward the service data to the multiple leaf nodes. Thereby improving the protection capability of service transmission in the P2MP service.
  • the first node is connected to the second node by using a first additional path, where the first additional path and the second path form a first protection path of the first node connecting the root node
  • the first protection path is used to transmit service data that is sent by the root node to the first node by using the second node; and the second node is connected to the first node by using a second additional path,
  • the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node to be sent by the first node to the Service data of the second node; when the state of the first node is active, and the state of the second node is standby, if the first path fails, the first node is from the first
  • the protection path receives the service data sent by the root node; the first node Transmitting the service data to the plurality of leaf nodes. In this way, when the first path fails, the first node can receive the service data sent by the root no
  • FIG. 3 is a schematic flowchart of another point-to-multipoint service transmission method according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • the first node forwards the service data to the multiple leaf nodes.
  • the first node receives the location from the first path. Decoding the service data sent by the root node, and forwarding the service data to the plurality of leaf nodes.
  • the first node may receive the service data sent by the root node to the second node by using the second path from the first protection path.
  • the first node may receive the service data sent by the root node from the first path. Therefore, regardless of whether the first path fails, the first node may receive the service data sent by the root node, and send the service data to the multiple leaf nodes.
  • the foregoing method may further include:
  • the first node identifies whether the first path is faulty.
  • step 301 can be performed. If no fault occurs, step 303 can be performed.
  • the first node identifying that the first path is faulty may be: determining whether the first node can receive the service data sent by the root node by using the first path, and if yes, determining that the first path is not faulty, if not, Then, it is determined that the first path is faulty; or the first node determines whether the first path is faulty by using an OMA message sent by an operation management maintenance (English: Operation Administration and Maintenance, OAM) entity.
  • OAM Operation Administration and Maintenance
  • the foregoing method may further include:
  • the first node forwards the service data sent by the root node that is received by the first node from the first path to the second node by using the second additional path, so that the second node
  • the second protection path receives the service data sent by the root node.
  • the received data of the step may be the service data received in step 303.
  • the first node may receive the service data from the first path, and may send the service data to the second node, so that when the path between the first node and the multiple leaf nodes fails, the second node may use the first node.
  • the forwarded service data is sent to the plurality of leaf nodes. Thereby improving the protection of business data.
  • the foregoing method may further include:
  • the first node When the state of the first node is standby and the state of the second node is active, if the first path does not fail, the first node receives the root node from the first path to send The service data, the service data is forwarded to the second node by using the second additional path, so that the second node receives the service data sent by the root node from the second protection path.
  • the foregoing step may be implemented, when the state of the first node is standby, the first node may send the service data sent by the root node from the first path to the second node by using the second additional path, that is, The second node receives the service data sent by the root node by using the foregoing second protection path, so that when the second path fails, the second node can receive the service data sent by the root node, so as to improve the protection capability of the service data. .
  • the first node may receive the service data sent by the root node from the first path, and the first node sends the service data to the second node by using the second additional path, so that the second node may send the service to the multiple leaf nodes. data.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the method of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the method of the present invention.
  • the device embodiment of the present invention is used to perform the method for implementing the first to second embodiments of the method of the present invention.
  • the embodiments related to the embodiment of the present invention are shown.
  • specific technical details are not disclosed, please refer to Embodiment 1 and Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a point-to-multipoint service transmission apparatus according to an embodiment of the present invention, for performing a point-to-multipoint service transmission method provided by an embodiment of the present invention, where the apparatus is deployed in a first node, and A node is applied to the network architecture shown in FIG.
  • the device is connected to the second node by a first additional path, and the first additional path and the second path constitute the first node connecting the root node a first protection path, the first protection path is used to transmit service data sent by the root node to the first node by using the second node; and the second node is connected by using a second additional path
  • the device, the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node by using the first node
  • a first receiving unit 41 configured to: when the state of the first node is active, and the state of the second node is standby, if the first path fails, receive the first protection path Describe the service data sent by the root node;
  • the first forwarding unit 42 is configured to forward the service data to the multiple leaf nodes.
  • the first node is connected to the second node by using a first additional path, where the first additional path and the second path form a first protection path of the first node connecting the root node
  • the first protection path is used to transmit service data that is sent by the root node to the first node by using the second node; and the second node is connected to the first node by using a second additional path,
  • the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node to be sent by the first node to the Service data of the second node; when the state of the first node is active, and the state of the second node is standby, if the first path fails, the first node is from the first
  • the protection path receives the service data sent by the root node; the first node forwards the service data to the plurality of leaf nodes. In this way, when the first path fails, the first node can receive the service data sent by the root node
  • FIG. 5 is a schematic structural diagram of a point-to-multipoint service transmission apparatus according to an embodiment of the present invention, for performing a point-to-multipoint service transmission method provided by an embodiment of the present invention, where the apparatus is deployed at a first node, and A node is applied to the network architecture shown in FIG.
  • the device is connected to the second node by a first additional path, and the first additional path and the second path constitute the first node connecting the root node a first protection path, the first protection path is used to transmit service data sent by the root node to the first node by using the second node; and the second node is connected by using a second additional path
  • the device, the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node by using the first node
  • a first receiving unit 51 configured to: when the state of the first node is active, and the state of the second node is standby, if the first path fails, receive the first protection path The business data sent by the root node.
  • the first forwarding unit 52 is configured to forward the service data to the multiple leaf nodes.
  • a second receiving unit 53 configured to: when the state of the first node is active, and the state of the second node is standby, if the first path does not fail, receive from the first path The service data sent by the root node.
  • the second forwarding unit 54 is configured to forward the service data received by the second receiving unit to the multiple leaf nodes.
  • the foregoing apparatus may further include:
  • the identifying unit 50 is configured to identify whether the first path is faulty.
  • the foregoing apparatus may further include:
  • a third forwarding unit 55 configured to forward the service data received by the second receiving unit 53 to the second node by using the second additional path, so that the second node receives the second protection path from the second protection path The service data sent by the root node.
  • the foregoing apparatus may further include:
  • a third receiving unit 56 configured to: when the state of the first node is standby, and the state of the second node is active, if the first path does not fail, receive from the first path Service data sent by the root node;
  • a fourth forwarding unit 57 configured to forward the service data received by the third receiving unit 56 to the second node by using the second additional path, so that the second node receives the second protection path from the second protection path The service data sent by the root node.
  • the identifying unit 50 may further identify the state of the first node, and if it is recognized that the state of the first node is currently standby, the third receiving unit 56 may not fail in the first path. In the case, the service data sent by the root node is received from the first path.
  • FIG. 6 is a schematic structural diagram of another point-to-multipoint service transmission apparatus according to an embodiment of the present invention, and the first node is applied to the network architecture shown in FIG. 1, and the apparatus is deployed on a first node, where the apparatus is Connecting the second node by using a first additional path, the first additional path and the second path forming a first protection path of the first node connecting the root node, where the first protection path is used for transmission And the root node sends the service data to the first node by using the second node; and the second node connects the device by using a second additional path, where the second additional path and the first path form The second node is connected to the second protection path of the root node, and the second protection path is used to transmit service data that is sent by the root node to the second node by using the first node;
  • the apparatus includes a processor 61, a network interface 62, a memory 63, and a communication bus 64, wherein the processor 61, the network interface 62, and the memory
  • the memory 63 is configured to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 63 may include a random access memory (RAM), and may also include a non-volatile memory such as at least one disk storage.
  • the processor 61 is configured to execute the program stored in the memory 63, and is used to implement the point-to-multipoint service transmission method provided by the embodiment of the present invention, including:
  • the program executed by the processor 61 may further include:
  • the service data sent by the root node is received from the first path, and the service data is forwarded to the multiple leaf nodes.
  • the method may further include:
  • the method may further include:
  • the first node When the state of the first node is standby and the state of the second node is active, if the first path does not fail, the first node receives the root node from the first path to send The service data, the service data is forwarded to the second node by using the second additional path, so that the second node receives the service data sent by the root node from the second protection path.
  • the first node is connected to the second node by using a first additional path, where the first additional path and the second path form a first protection path of the first node connecting the root node
  • the first protection path is used to transmit service data that is sent by the root node to the first node by using the second node; and the second node is connected to the first node by using a second additional path,
  • the second additional path and the first path constitute a second protection path that the second node connects to the root node, and the second protection path is used to transmit the root node to be sent by the first node to the Service data of the second node; when the state of the first node is active, and the state of the second node is standby, if the first path fails, the first node is from the first
  • the protection path receives the service data sent by the root node; the first node forwards the service data to the plurality of leaf nodes. In this way, when the first path fails, the first node can receive the service data sent by the root node
  • the processor 61 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP processor, etc.), or a digital signal processor (DSP), an application specific integrated circuit. (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.
  • CPU central processing unit
  • NP processor network processor
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a RAM.

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Abstract

本发明实施例公开了一种点到多点业务传输方法和装置，用于包括根节点、第一节点、第二节点和多个叶子节点的网络中；第一节点通过第一附加路径连接第二节点，第一附加路径和第二路径构成第一节点连接根节点的第一保护路径；第二节点通过第二附加路径连接第一节点，第二附加路径和第一路径构成第二节点连接根节点的第二保护路径；该方法可包括：当第一节点的状态为主用，且第二节点的状态为备用时，如果第一路径出现故障，第一节点从第一保护路径接收根节点发送的业务数据；第一节点向多个叶子节点转发业务数据。本发明实施例可以提高P2MP业务中业务传输的保护能力。

Description

一种点到多点业务传输方法和装置
本申请要求于2015年01月16日提交中国专利局、申请号为201510024469.3、发明名称为“一种点到多点业务传输方法和装置”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
本发明涉及通信领域，尤其涉及一种点到多点业务传输方法和装置。
背景技术
点到多点(英文：Point To Multiple Point，缩写：P2MP)业务是以太网中一个重要的业务模型。其中，P2MP业务为单向业务，业务从网络的根节点(或者源端)传输到叶子节点(或者宿端)。在实际应用中P2MP业务一般存在主备两条路径，其中，主路径可以理解为工作路径，备路径可以理解为保护路径。在主路径未出故障时使用主路径进行业务传输，当主路径出现故障时，使用备路径进行业务传输。然而，在上述技术方案中，当主路径和备路径都出现故障时，就会导致根节点下发的业务数据无法传输至叶子节点。例如：主路径包括：根节点A-节点B-叶子节点D，备路径包括：根节点A-节点C-叶子节点D，如果节点B到叶子节点D之间的路径出现故障，且根节点A到节点C的路径也出现故障时，则根节点A下发的业务数据就无法传输至叶子节点D。可见，目前的P2MP业务中业务传输的保护能力不强。
发明内容
本发明提供了一种点到多点业务传输方法和装置，可以提高P2MP业务中业务传输的保护能力。
第一方面，本发明提供一种点到多点业务传输方法，用于包括根节点、第一节点、第二节点和多个叶子节点的网络中，所述第一节点通过第一路径连接所述根节点，所述第二节点通过第二路径连接所述根节点，所述多 个叶子节点双归属到所述第一节点和所述第二节点，所述第一节点和所述第二节点互为主备关系，
所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；
所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；
所述方法包括：
当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；
所述第一节点向所述多个叶子节点转发所述业务数据。
在第一方面的第一种可能的实现方式中，当所述第一节点的状态为主用，且所述第二节点的状态为备用时，所述方法还包括：
如果所述第一路径未出现故障时，所述第一节点从所述第一路径接收所述根节点发送的业务数据，并向所述多个叶子节点转发所述业务数据。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述方法还包括：
所述第一节点通过所述第二附加路径向所述第二节点转发所述第一节点从所述第一路径接收的所述根节点发送的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
结合第一方面或者第一方面的第一种可能的实现方式或者第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述方法还包括：
当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，所述第一节点从所述第一路径接收所述根节 点发送的业务数据，通过所述第二附加路径向所述第二节点转发所述业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
第二方面，本发明提供一种点到多点业务传输装置，用于包括根节点、所述第一节点、第二节点和多个叶子节点的网络中，所述装置部署在第一节点上，所述第一节点通过第一路径连接所述根节点，所述第二节点通过第二路径连接所述根节点，所述多个叶子节点双归属到所述第一节点和所述第二节点，所述第一节点和所述第二节点互为主备关系，
所述装置通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；
所述第二节点通过第二附加路径连接所述装置，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；
所述装置包括：第一接收单元和第一转发单元，其中：
所述第一接收单元，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，从所述第一保护路径接收所述根节点发送的业务数据；
所述第一转发单元，用于向所述多个叶子节点转发所述业务数据。
在第二方面的第一种可能的实现方式中，所述装置还包括：
第二接收单元，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径未出现故障时，从所述第一路径接收所述根节点发送的业务数据；
第二转发单元，用于向所述多个叶子节点转发所述第二接收单元接收的业务数据。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述装置还包括：
第三转发单元，用于通过所述第二附加路径向所述第二节点转发所述第二接收单元接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
结合第二方面或者第二方面的第一种可能的实现方式或者第二方面的第二种可能的实现方式，在第二方面的第二种可能的实现方式中，所述装置还包括：
第三接收单元，用于当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，从所述第一路径接收所述根节点发送的业务数据；
第四转发单元，用于通过所述第二附加路径向所述第二节点转发所述第三接收单元接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
上述技术方案中，所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；所述第一节点向所述多个叶子节点转发所述业务数据。这样可以实现当上述第一路径出现故障时，第一节点可以通过上述第一保护路径接收到根节点发送的业务数据，从而本发明可以提高P2MP业务中业务传输的保护能力。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员 来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的点到多点业务传输方法的网络架构示意图；
图2是本发明实施例提供的一种点到多点业务传输方法的流程示意图；
图3是本发明实施例提供的另一种点到多点业务传输方法的流程示意图；
图4是本发明实施例提供的一种点到多点业务传输装置的结构示意图；
图5是本发明实施例提供的另一种点到多点业务传输装置的结构示意图；
图6是本发明实施例提供的另一种点到多点业务传输装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为了更好的理解本发明实施例，下面先对本发明实施例提供的点到多点业务传输的网络架构进行描述。
图1是本发明实施例提供的点到多点业务传输方法的网络架构示意图。如图1所示，该网络架构包括根节点101、第一节点102、第二节点103和多个叶子节点104，第一节点101通过第一路径L1连接根节点101，第二节点102通过第二路径L2连接根节点101，多个叶子节点104双归属到第一节点102和第二节点103，第一节点102和第二节点103互为主备关系。其中，上述第一路径L1可以是第一节点102与根节点101直接连接的路径；或者，上述第一路径L1可以是第一节点102与根节点101间接连接的路径，即该路径中可以包括一个或者多个中间节点，同理，上述第二路径L2也可以是直接连接或者间接连接的路径。另外，上述多个叶子节点104双归属 到所述第一节点102和所述第二节点103可以理解为，上述多个叶子节点104连接到所述第一节点102，同时也连接到所述第二节点103。所述第一节点102和所述第二节点103中，状态为主用的节点负责向上述多个叶子节点104转发根节点101发送的业务数据，而状态为备用的节点不会向上述多个叶子节点104转发根节点101发送的业务数据。
另外，本发明实施例中，第一节点102可以通过第一附加路径L3连接第二节点103，第一附加路径L3和第二路径L2构成第一节点102连接根节点101的第一保护路径，第一保护路径用于传输根节点101通过第二节点103发送给第一节点102的业务数据；
另外，第二节点103通过第二附加路径L4连接第一节点102，第二附加路径L4和第一路径L1构成第二节点103连接根节点101的第二保护路径，所述第二保护路径用于传输根节点101通过第一节点102发送给第二节点103的业务数据。
这样通过上述第一附加路径L3和第二附加路径L4可以提高P2MP业务中业务传输的保护能力。
另外，上述第一附加路径L3和第二附加路径L4同样可以是直接连接的路径或者间接连接的路径。
另外，本发明实施例中，第一节点102和第二节点103可以是任意可以支持点到多点业务传送的设备，例如：交换机、路由器等，另外，第一节点102和第二节点103所在网层也不作限定，例如：第一节点102和第二节点103可以是核心层、汇聚层或者接入层中的设备。
另外，本发明实施例可以应用于以太网络，或者多协议标签交换(英文全称：Multi-Protocol Label Switching，英文缩写：MPLS)网络等业务数据在设备内为单向传输的网络。
下面对在上述网络架构中点到多点业务传输方法进行详细说明。
图2是本发明实施例提供的一种点到多点业务传输方法的流程示意图，如图2所示，所述方法包括：
201、当第一节点的状态为主用，且第二节点的状态为备用时，如果第一路径出现故障，所述第一节点从第一保护路径接收所述根节点发送的业 务数据。
需要说明的是，本方法中的第一路径和第一保护路径可以是图1所示的网络架构中的第一路径和第一保护路径，此处不作重复说明。
上述第一节点的状态为主用、上述第二节点的状态为备用，可以是理解为上述多个叶子节点当前选择通过第一节点接收根节点发送的业务数据；当前第一节点到上述多个叶子节点之间的路径没有出现故障。上述第二节点作为备用节点，不会向上述多个叶子节点转发根节点发送的业务数据。。
可选的，当上述第一路径出现故障，第一节点将无法通过第一路径接收根节点发送的业务数据。
另外，上述第一节点从第一保护路径接收所述根节点发送的业务数据可以理解为，第一节点接收所述根节点通过所述第二节点发送给所述第一节点的业务数据，即第一节点从上述第一附加路径接收第二节点从上述第二路径接收到的根节点发送的业务数据。
202、第一节点向上述多个叶子节点转发所述业务数据。
通过上述步骤可以实现当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，第一节点可以从上述第一保护路径接收所述根节点发送的业务数据。这样可以实现在第一路径出现故障时，第一节点也可以接收到根节点发送的业务数据，并向上述多个叶子节点转发该业务数据。从而提高P2MP业务中业务传输的保护能力。
本实施例中，所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；所述第一节点 向所述多个叶子节点转发所述业务数据。这样可以实现当上述第一路径出现故障时，第一节点可以通过上述第一保护路径接收到根节点发送的业务数据，从而本实施例可以提高P2MP业务中业务传输的保护能力。
图3是本发明实施例提供另一种点到多点业务传输方法的流程示意图，如图3所示，所述包括：
301、当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据。
302、第一节点向所述多个叶子节点转发所述业务数据。
303、当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径未出现故障时，所述第一节点从所述第一路径接收所述根节点发送的业务数据，并向所述多个叶子节点转发所述业务数据。
通过上述步骤可以实现当上述第一路径出现故障时，第一节点可以从上述第一保护路径接收到根节点通过上述第二路径向第二节点发送的业务数据。当上述第一路径未出现故障时，第一节点可以从所述第一路径接收所述根节点发送的业务数据。从而无论上述第一路径是否出现故障，第一节点都可以接收到根节点发送的业务数据，并向上述多个叶子节点发送该业务数据。
可选的，上述方法还可以包括：
300、第一节点识别上述第一路径是否出现故障。
当出现故障时，就可以执行步骤301，若没有出现故障时，就可以执行步骤303。
另外，第一节点识别上述第一路径出现故障可以是，通过判断第一节点是否可以通过上述第一路径接收上述根节点发送的业务数据，若是，则确定第一路径未出现故障，若否，则确定第一路径出现故障；或者第一节点通过操作管理维护(英文：Operation Administration and Maintenance，缩写：OAM)实体发送的OMA消息确定上述第一路径是否出现故障。
可选的，上述方法还可以包括：
304、第一节点通过所述第二附加路径向所述第二节点转发所述第一节点从所述第一路径接收的所述根节点发送的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
其中，该步骤的接收数据可以是步骤303接收到的业务数据。
通过上述步骤可以实现第一节点从第一路径接收到业务数据可以是发送给第二节点，这样第一节点到上述多个叶子节点之间的路径出现故障时，第二节点可以将第一节点转发的业务数据向上述多个叶子节点发送。从而提高业务数据的保护能力。
可选的，上述方法还可以包括：
当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，所述第一节点从所述第一路径接收所述根节点发送的业务数据，通过所述第二附加路径向所述第二节点转发所述业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
通过上述步骤可以实现，当上述第一节点的状态为备用时，第一节点可以将从上述第一路径接收到根节点发送的业务数据通过上述第二附加路径向第二节点发送，即可以实现第二节点通过上述第二保护路径接收到根节点发送的业务数据，从而可以避免当上述第二路径出现故障时，第二节点可以接收到根节点发送的业务数据，以提高业务数据的保护能力。例如：当第一节点到上述多个叶子节点的路径出现故障，且第二节点到上述多个叶子节点之间的路径未出现故障，且根节点到第二节点的第二路径出现故障时，第一节点可以从上述第一路径接收根节点发送的业务数据，第一节点通过上述第二附加路径向第二节点发送该业务数据，从而第二节点就可以向上述多个叶子节点发送该业务数据。
本实施例，在图2所示的实施例的基础上增加了多种可选的实施方式，且都可以实现提供提高P2MP业务中业务传输的保护能力。
下面为本发明装置实施例，本发明装置实施例用于执行本发明方法实施例一至二实现的方法，为了便于说明，仅示出了与本发明实施例相关的 部分，具体技术细节未揭示的，请参照本发明实施例一和实施例二。
图4是本发明实施例提供的一种点到多点业务传输装置的结构示意图，用于执行本发明实施例提供的点到多点业务传输方法，所述装置部署在第一节点，且第一节点应用于图1所示的网络架构，所述装置通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；且所述第二节点通过第二附加路径连接所述装置，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；如图4所示，所述装置包括：第一接收单元41和第一转发单元42，其中：
第一接收单元41，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，从所述第一保护路径接收所述根节点发送的业务数据；
第一转发单元42，用于向所述多个叶子节点转发所述业务数据。
本实施例中，所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；所述第一节点向所述多个叶子节点转发所述业务数据。这样可以实现当上述第一路径出现故障时，第一节点可以通过上述第一保护路径接收到根节点发送的业务数据，从而本实施例可以提高P2MP业务中业务传输的保护能力。
图5是本发明实施例提供的一种点到多点业务传输装置的结构示意图，用于执行本发明实施例提供的点到多点业务传输方法，所述装置部署在第一节点，且第一节点应用于图1所示的网络架构，所述装置通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；且所述第二节点通过第二附加路径连接所述装置，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；如图5所示，所述装置包括：第一接收单元51、第一转发单元52、第二接收单元53和第二转发单元54，其中：
第一接收单元51，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，从所述第一保护路径接收所述根节点发送的业务数据。
第一转发单元52，用于向所述多个叶子节点转发所述业务数据。
第二接收单元53，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径未出现故障时，从所述第一路径接收所述根节点发送的业务数据。
第二转发单元54，用于向所述多个叶子节点转发所述第二接收单元接收的业务数据。
可选的，上述装置还可以包括：
识别单元50，用于识别上述第一路径是否出现故障。
可选的，上述装置还可以包括：
第三转发单元55，用于通过所述第二附加路径向所述第二节点转发所述第二接收单元53接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
可选的，上述装置还可以包括：
第三接收单元56，用于当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，从所述第一路径接收 所述根节点发送的业务数据；
第四转发单元57，用于通过所述第二附加路径向所述第二节点转发所述第三接收单元56接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
另外，该实施方式中，识别单元50还可以识别上述第一节点的状态，若识别出第一节点的状态当前为备用时，第三接收单元56就可以在所述第一路径未出现故障的情况下，从所述第一路径接收所述根节点发送的业务数据。
本实施例，在图4所示的实施例的基础上增加了多种可选的实施方式，且都可以实现提供提高P2MP业务中业务传输的保护能力。
图6是本发明实施例提供的另一种点到多点业务传输装置的结构示意图，且第一节点应用于图1所示的网络架构，所述装置部署在第一节点上，所述装置通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；且所述第二节点通过第二附加路径连接所述装置，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；如图6所示，所述装置包括：处理器61、网络接口62、存储器63和通信总线64，其中，所述处理器61、网络接口62和存储器63之间通过所述通信总线64相互连接。
所述存储器63，用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器63可能包含随机存取存储器(random access memory，简称RAM)，也可能还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。
所述处理器61用于执行所述存储器63中存储的程序，用于实现本发明实施例提供的点到多点业务传输方法，包括：
当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如 果所述第一路径出现故障，从所述第一保护路径接收所述根节点发送的业务数据；
向所述多个叶子节点转发所述业务数据。
可选的，当所述第一节点的状态为主用，且所述第二节点的状态为备用时，处理器61执行的程序还可以包括：
如果所述第一路径未出现故障时，从所述第一路径接收所述根节点发送的业务数据，并向所述多个叶子节点转发所述业务数据。
可选的，所述方法还可以包括：
通过所述第二附加路径向所述第二节点转发所述第一节点从所述第一路径接收的所述根节点发送的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
可选的，所述方法还可以包括：
当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，所述第一节点从所述第一路径接收所述根节点发送的业务数据，通过所述第二附加路径向所述第二节点转发所述业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
本实施例中，所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；所述第一节点向所述多个叶子节点转发所述业务数据。这样可以实现当上述第一路径出现故障时，第一节点可以通过上述第一保护路径接收到根节点发送的业务数据，从而本实施例可以提高P2MP业务中业务传输的保护能力。
上述的处理器61可以是通用处理器，包括中央处理器(Central Processing Unit，简称CPU)、网络处理器(Network Processor，简称NP)等；还可以是数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或RAM等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (8)

  1. 一种点到多点业务传输方法，用于包括根节点、第一节点、第二节点和多个叶子节点的网络中，所述第一节点通过第一路径连接所述根节点，所述第二节点通过第二路径连接所述根节点，所述多个叶子节点双归属到所述第一节点和所述第二节点，所述第一节点和所述第二节点互为主备关系，其特征在于，
    所述第一节点通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；
    所述第二节点通过第二附加路径连接所述第一节点，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；
    所述方法包括：
    当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，所述第一节点从所述第一保护路径接收所述根节点发送的业务数据；
    所述第一节点向所述多个叶子节点转发所述业务数据。
  2. 如权利要求1所述的方法，其特征在于，当所述第一节点的状态为主用，且所述第二节点的状态为备用时，所述方法还包括：
    如果所述第一路径未出现故障时，所述第一节点从所述第一路径接收所述根节点发送的业务数据，并向所述多个叶子节点转发所述业务数据。
  3. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    所述第一节点通过所述第二附加路径向所述第二节点转发所述第一节点从所述第一路径接收的所述根节点发送的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
  4. 如权利要求1至3任一项所述的方法，其特征在于，所述方法还包括：
    当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，所述第一节点从所述第一路径接收所述根节点发送的业务数据，通过所述第二附加路径向所述第二节点转发所述业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
  5. 一种点到多点业务传输装置，用于包括根节点、所述第一节点、第二节点和多个叶子节点的网络中，所述装置部署在第一节点上，所述第一节点通过第一路径连接所述根节点，所述第二节点通过第二路径连接所述根节点，所述多个叶子节点双归属到所述第一节点和所述第二节点，所述第一节点和所述第二节点互为主备关系，其特征在于，
    所述装置通过第一附加路径连接所述第二节点，所述第一附加路径和所述第二路径构成所述第一节点连接所述根节点的第一保护路径，所述第一保护路径用于传输所述根节点通过所述第二节点发送给所述第一节点的业务数据；
    所述第二节点通过第二附加路径连接所述装置，所述第二附加路径和所述第一路径构成所述第二节点连接所述根节点的第二保护路径，所述第二保护路径用于传输所述根节点通过所述第一节点发送给所述第二节点的业务数据；
    所述装置包括：第一接收单元和第一转发单元，其中：
    所述第一接收单元，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径出现故障，从所述第一保护路径接收所述根节点发送的业务数据；
    所述第一转发单元，用于向所述多个叶子节点转发所述业务数据。
  6. 如权利要求5所述的装置，其特征在于，所述装置还包括：
    第二接收单元，用于当所述第一节点的状态为主用，且所述第二节点的状态为备用时，如果所述第一路径未出现故障时，从所述第一路径接收所述根节点发送的业务数据；
    第二转发单元，用于向所述多个叶子节点转发所述第二接收单元接收的业务数据。
  7. 如权利要求6所述的装置，其特征在于，所述装置还包括：
    第三转发单元，用于通过所述第二附加路径向所述第二节点转发所述第二接收单元接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的所述业务数据。
  8. 如权利要求5至7任一项所述的装置，其特征在于，所述装置还包括：
    第三接收单元，用于当所述第一节点的状态为备用，且所述第二节点的状态为主用时，如果所述第一路径未出现故障，从所述第一路径接收所述根节点发送的业务数据；
    第四转发单元，用于通过所述第二附加路径向所述第二节点转发所述第三接收单元接收的业务数据，以使所述第二节点从所述第二保护路径接收所述根节点发送的该业务数据。
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Publication number Priority date Publication date Assignee Title
CN104601464A (zh) * 2015-01-16 2015-05-06 华为技术有限公司 一种点到多点业务传输方法和装置
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080279096A1 (en) * 2007-05-11 2008-11-13 Sullivan Michael J Lightweight node based network redundancy solution leveraging rapid spanning tree protocol (rstp)
CN102045178A (zh) * 2009-10-16 2011-05-04 中兴通讯股份有限公司 虚拟专用局域网服务组播保护的方法及装置
CN104601464A (zh) * 2015-01-16 2015-05-06 华为技术有限公司 一种点到多点业务传输方法和装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7558194B2 (en) * 2003-04-28 2009-07-07 Alcatel-Lucent Usa Inc. Virtual private network fault tolerance
IL176330A0 (en) * 2006-06-15 2007-07-04 Eci Telecom Ltd Technique of traffic protection loop-free interconnection for ethernet and/or vpls networks
US8111498B2 (en) * 2008-07-09 2012-02-07 Sdi - Security Device International Inc. Electronic circuitry for incapacitating a living target
JP5359618B2 (ja) * 2009-07-03 2013-12-04 日本電気株式会社 光通信ネットワーク
CN102142948A (zh) * 2010-02-02 2011-08-03 华为技术有限公司 一种数据转发方法、装置及系统
US8724456B1 (en) * 2010-05-19 2014-05-13 Juniper Networks, Inc. Network path selection for multi-homed edges to ensure end-to-end resiliency
JP5537462B2 (ja) * 2011-02-24 2014-07-02 株式会社日立製作所 通信ネットワークシステム及び通信ネットワーク構成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080279096A1 (en) * 2007-05-11 2008-11-13 Sullivan Michael J Lightweight node based network redundancy solution leveraging rapid spanning tree protocol (rstp)
CN102045178A (zh) * 2009-10-16 2011-05-04 中兴通讯股份有限公司 虚拟专用局域网服务组播保护的方法及装置
CN104601464A (zh) * 2015-01-16 2015-05-06 华为技术有限公司 一种点到多点业务传输方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3240246A4 *

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US20170317924A1 (en) 2017-11-02
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