WO2013182116A1 - 保护以太环网节点间连通性的控制方法、装置及第一节点 - Google Patents

保护以太环网节点间连通性的控制方法、装置及第一节点 Download PDF

Info

Publication number
WO2013182116A1
WO2013182116A1 PCT/CN2013/079156 CN2013079156W WO2013182116A1 WO 2013182116 A1 WO2013182116 A1 WO 2013182116A1 CN 2013079156 W CN2013079156 W CN 2013079156W WO 2013182116 A1 WO2013182116 A1 WO 2013182116A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
ethernet ring
link
protection technology
supporting
Prior art date
Application number
PCT/CN2013/079156
Other languages
English (en)
French (fr)
Inventor
吴少勇
杨瑾
甘玉玺
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to AU2013271091A priority Critical patent/AU2013271091B2/en
Priority to EP13800155.7A priority patent/EP2874351B1/en
Priority to US14/421,320 priority patent/US20150207674A1/en
Publication of WO2013182116A1 publication Critical patent/WO2013182116A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • 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
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's

Definitions

  • the present invention relates to an Ethernet ring network technology, and more particularly to a control method, apparatus and first node for protecting connectivity between Ethernet ring nodes when an incompatible device exists in an Ethernet ring network.
  • Ethernet is moving toward multi-service bearer, and with the improvement of network reliability and real-time requirements, Ethernet has widely used redundant networking to improve network reliability and meet business requirements. Real-time and other needs.
  • the protection switching speed is usually fast enough, and the protection switching time is less than 50ms.
  • the technologies involved in fast protection switching include the RFC3619 standard proposed by the Internet Engineering Task Force (IETF) and the G.8032 standard proposed by the International Telecommunication Union (ITU-T).
  • the automatic protection switching protocol and mechanism are defined for the Ethernet layer of the ring topology Ethernet.
  • This automatic protection switching method is applicable to the ring topology Ethernet.
  • the method implementation process is as follows: In a ring topology Ethernet, a link is selected as a ring protection link. When the link of the Ethernet ring network is faultless, at least one of the two adjacent nodes of the ring protection link is blocked and protected by a ring. The port connected to the road prevents the protected data from passing through the ring protection link. Thus, there is only a unique communication path between any two nodes on the Ethernet ring network, so the closed loop of the communication path is not generated in the Ethernet ring network.
  • FIG. 1 is a schematic diagram of an Ethernet ring network structure based on the G.8032 standard.
  • nodes S1, S2, S3, and S4 form an Ethernet ring network
  • links between nodes S1 and S4 are ring protection links.
  • S1 is the node to which the ring protection link belongs, and the blocking and opening of the control port 11 by the node S1 can block or open the ring protection link.
  • node S1 blocks port 11 and prevents The protected data passes through the ring protection link.
  • the protected data traffic communication path between nodes S2 and S3 is only S2 ⁇ ->S3, and it is impossible that S2 ⁇ ->S1 ⁇ ->S4 ⁇ —>S3.
  • the OAM (Operation Administration, Maintenance, and Maintenance) domain is established between adjacent nodes to detect the connectivity of the link.
  • the basic principle of OAM detection is that two nodes of the domain send detection frames to each other. If the node does not receive the detection frame of the peer end within one end time, the link fault is detected. If the node receives the detection frame of the peer end after detecting the link fault, the link recovery is detected.
  • FIG. 2 is a schematic diagram of the structure of the Ethernet ring network after the link failure in FIG. 1, as shown in FIG. 2, assuming that the link between the node S2 and the node S3 is faulty, then after detecting the fault, the node S2 and the node S3 respectively The port 22 and port 31 connected to the faulty link are blocked, and the link failure alarm protocol frame is sent to notify other nodes supporting the Ethernet ring protection technology to perform protection switching; the node S1 to which the ring protection link belongs receives the link failure alarm protocol frame.
  • the blocked port 11 connected to the ring protection link is opened, and each node on the Ethernet ring network refreshes the address forwarding table to implement network protection switching, and the protected data can pass through the open ring protection link, and the node S2 and The communication path of the protected data between the nodes S3 is S2 ⁇ ->S1 ⁇ ->S4 ⁇ ->S3.
  • the link fault is one of the cases that causes the protection switching. In practical applications, manual switching, forced switching, and the like may also be included.
  • G.8032 standard Ethernet ring network and other technologies provide automatic protection switching protocols and mechanisms
  • G.8032 is released later than Ethernet application time, so the new network supports G.8032 and does not support the actual network.
  • the scene of the old device co-networking of G.8032 is very common. It is often the case that there are nodes in the Ethernet ring network that do not support the G.8032 standard. As a result, the interconnection between nodes is not compatible, and the automatic protection switching of the Ethernet ring network cannot be realized.
  • nodes S1, S2, S5, S6, S3, and S4 form an Ethernet ring network.
  • other nodes support the G.8032 standard Ethernet ring network protection technology, and the link between nodes S1 and S4.
  • the node S1 is the node to which the ring protection link belongs, and the blocking and opening of the control port 11 by the node S1 can block or open the ring protection link.
  • node S1 blocks port 11 to prevent the protected data from passing through the ring protection link.
  • the nodes S5 and S6 do not support the Ethernet ring protection technology of the G.8032 standard, and the link failure alarm protocol frame is not sent to other nodes. Therefore, other nodes are not provided.
  • the fault state will not be known, and the node S1 to which the ring protection link belongs will not open the blocked and ring protection chain.
  • the scenario of the node that supports the Ethernet ring protection technology and the node that does not support the protection of the Ethernet ring network is more and more common. If there is no connection to the incompatible Ethernet ring network node, The processing technology will greatly hinder the application of the network protection switching technology and even cause network failure. Therefore, a technology for interworking the incompatible Ethernet ring nodes is needed to ensure the maximum connectivity of the network.
  • the technical problem to be solved by the embodiments of the present invention is to provide a protection switch that is incompatible with the Ethernet ring network protection technology, and to ensure maximum connectivity of the network.
  • the embodiment of the present invention provides a control method for protecting connectivity between Ethernet ring nodes, and the method includes: supporting a first ring node protection technology of the first node and supporting the Ethernet ring network protection technology
  • the second node interacts to detect link connectivity, where the first node and the second node have at least one third node that does not support the Ethernet ring protection technology, and the first node and the second node do not have A node supporting the Ethernet ring protection technology; when the first node supporting the Ethernet ring protection technology detects a link failure, blocking the port where the first node is connected to the faulty link end;
  • the first node sends a link failure alarm protocol frame to other nodes supporting the Ethernet ring protection technology, and notifies other nodes that support the Ethernet ring protection technology to perform protection switching.
  • the link failure alarm protocol frame includes a first node number of the first node; and the control method further includes: detecting the link after receiving the second node After the link failure alarm protocol frame sent in the fault, the second node number of the second node carried in the received link fault alarm protocol frame is compared with the first node number to determine whether the comparison result satisfies the preset condition. If the comparison result satisfies the pre-set condition, the port connected to the faulty link end blocked by the first node supporting the Ethernet ring protection technology is turned on.
  • an embodiment of the present invention further provides a control device for protecting connectivity between Ethernet ring nodes, the device comprising: a link connectivity detecting unit, configured to detect a first node supporting an Ethernet ring protection technology and Adjacent to the link connectivity between the second nodes supporting the Ethernet ring protection technology, the first node and the second node have at least one third node that does not support the Ethernet ring protection technology And the node that does not support the Ethernet ring protection technology between the first node and the second node; the port blocking unit is configured to detect, when the link connectivity detecting unit detects two adjacent technologies supporting the Ethernet ring network protection When a link fault occurs between the first node and the second node, blocking the port where the first node is connected to the faulty link end; the link failure alarm protocol frame transceiver unit is configured to support the Ethernet ring network protection technology
  • the link connectivity detecting unit configured to detect a first node supporting an Ethernet ring protection technology and Adjacent to the link connectivity between the second nodes supporting the Ethernet ring protection technology, the first node
  • the link failure alarm protocol frame includes a first node number of the first node; the control device further includes: a comparison determination control unit, configured to receive the After detecting the link failure alarm protocol frame sent by the link failure, the second node compares the second node number of the second node carried in the received link failure alarm protocol frame with the first node number, and compares and judges Whether the result satisfies the pre-set condition, if the comparison result satisfies the preset condition, the port connected to the faulty link end blocked by the first node supporting the Ethernet ring protection technology is turned on.
  • a comparison determination control unit configured to receive the After detecting the link failure alarm protocol frame sent by the link failure, the second node compares the second node number of the second node carried in the received link failure alarm protocol frame with the first node number, and compares and judges Whether the result satisfies the pre-set condition, if the comparison result satisfies the preset condition, the port connected to the faulty link end blocked by the first node supporting
  • the preset condition is that the second node number is greater than the first node number, or the second node number is smaller than the first node number.
  • an embodiment of the present invention further provides a node device including the foregoing control device for protecting connectivity between Ethernet ring nodes.
  • the method and the device of the embodiment of the present invention when the connected link of the Ethernet ring protection technology node is not supported, and the connectivity of the Ethernet ring protection technology node adjacent to the node that does not support the Ethernet ring protection technology node Detection, can detect link failure, to achieve network protection switching, The protected data can pass through the open ring protection link, ensuring the connectivity of service data.
  • the two Ethernet ring protection technology nodes that have detected the link fault receive the link failure alarm protocol frame of the other party, the node with the small node number (or unified to be large) opens the blocked port, and does not support the Ethernet ring.
  • the network protection technology node transmits service data through open ports and other nodes. Therefore, the embodiment of the present invention not only enables incompatible Ethernet ring network nodes to be docked, but also ensures maximum connectivity of the network.
  • FIG. 1 is a schematic diagram of an Ethernet ring network structure based on the G.8032 standard
  • FIG. 2 is a schematic structural diagram of an Ethernet ring network after a link failure
  • FIG. 3 is a schematic structural diagram of an Ethernet ring network protection technology node in an Ethernet ring network
  • FIG. 4 is a flowchart of a method for controlling connectivity between Ethernet ring nodes according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an Ethernet ring network according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of processing of a fault in an Ethernet ring network according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a process for ensuring maximum connectivity of a network in an Ethernet ring network according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram of an Ethernet ring network according to still another embodiment of the present invention.
  • FIG. 10 is a schematic diagram of processing of a fault in an Ethernet ring network according to still another embodiment of the present invention
  • FIG. 11 is a schematic diagram of processing for ensuring maximum connectivity of an Ethernet ring network in another embodiment of the present invention.
  • the method for controlling connectivity between nodes of an Ethernet ring network is specifically as shown in FIG. 4, and includes the following steps:
  • Step S410 The first node supporting the Ethernet ring protection technology interacts with the second node supporting the Ethernet ring protection technology to detect link connectivity, where the first node and the second node There is at least one third node between the points that does not support the Ethernet ring protection technology, and there is no node between the first node and the second node supporting the Ethernet ring protection technology.
  • the two ring-protected technology nodes that are adjacent to the Ethernet ring protection technology node are not supported. The way the technology node detects link connectivity.
  • Step S420 When the first node supporting the Ethernet ring protection technology detects a link failure, blocking the port connected to the faulty link end by the first node.
  • Step S430 The first node supporting the Ethernet ring network protection technology sends a link failure alarm protocol frame to other nodes supporting the Ethernet ring protection technology, and notifies other nodes supporting the Ethernet ring protection technology to perform protection switching.
  • the first node supporting the Ethernet ring protection technology includes the node number of the first node in a link failure alarm protocol frame sent to other nodes supporting the Ethernet ring protection technology.
  • the specific embodiment of the present invention further includes:
  • the first node supporting the Ethernet ring protection technology receives the link failure alarm protocol frame sent by the second node supporting the Ethernet ring protection technology after detecting the link failure, and detects the link failure alarm protocol frame.
  • the second node number of the second node that is carried is compared with the first node number of the first node, and the comparison result is determined whether the comparison result satisfies the preset condition. If the comparison result satisfies the preset condition, the support Ethernet ring is opened. The port connected to the faulty link end blocked by the first node of the network protection technology.
  • the pre-set condition is that the received second node number of the second node supporting the Ethernet ring protection technology is greater than or less than the first node number of the first node supporting the Ethernet ring protection technology.
  • the method provided by the embodiment of the present invention detects a link failure when the connection of the Ethernet ring protection technology node is not supported, and then blocks the faulty port, and sends a link failure alarm protocol frame to notify other nodes supporting the Ethernet ring protection technology.
  • Protection switching the node to which the ring protection link belongs is known to the link. After the fault is opened, the blocked port connected to the ring protection link is opened. The nodes on the Ethernet ring network refresh the address forwarding table to implement network protection switching. The protected data can pass through the open ring protection link to ensure service data. Connectivity.
  • the Ethernet ring protection technology node cannot support the transmission of service data with other nodes, and the maximum connectivity of the network cannot be guaranteed.
  • the node number is smaller than (or unified to be greater than) the node number of the other node, the node is opened.
  • the blocked port does not support the Ethernet ring protection technology node to transmit service data through the opened port and other nodes. Therefore, the embodiment of the present invention not only enables incompatible Ethernet ring network nodes to be docked, but also ensures maximum connectivity of the network.
  • Embodiment 2
  • the device for controlling the connectivity between the nodes of the Ethernet ring network is used in the first node.
  • the specific structure is as shown in FIG. 5, and the device includes:
  • the link connectivity detecting unit 510 is configured to detect link connectivity between the first node supporting the Ethernet ring protection technology and the second node supporting the Ethernet ring protection technology, the first node And the second node has at least one third node that does not support the Ethernet ring protection technology, and the node between the first node and the second node does not support the Ethernet ring protection technology; the port blocking unit 520, when The link connectivity detecting unit detects that a link between the first node and the second node supporting the Ethernet ring protection technology is blocked, and the port connected to the faulty link end is blocked. ;
  • the link failure alarm protocol frame transceiver unit 530 is configured to send a link failure alarm protocol frame to the first node supporting the Ethernet ring protection technology to notify other nodes supporting the Ethernet ring protection technology to perform protection switching.
  • the link failure alarm protocol frame transceiver unit 530 includes the node number of the first node in the link failure alarm protocol frame sent to other nodes supporting the Ethernet ring protection technology.
  • the comparison judgment control unit 540 the first node supporting the Ethernet ring network protection technology receives the link failure sent by the second node supporting the Ethernet ring network protection technology after detecting the link failure. After the alarm protocol frame, the detected second node number of the second node carried in the link failure alarm protocol frame is compared with the first node number of the second node, and the comparison result is determined whether the comparison result satisfies the preset condition. If the comparison result satisfies the pre-set condition, the port connected to the faulty link end blocked by the first node supporting the Ethernet ring protection technology is turned on.
  • the condition pre-setting unit 550 is configured to set a condition that the second node number sent by the second node that supports the Ethernet ring protection technology is greater or smaller than the supported Ethernet ring network protection.
  • the first node number of the first node of the technology is greater or smaller than the supported Ethernet ring network protection.
  • the embodiment of the present invention provides a control device for protecting the connectivity between the nodes of the Ethernet ring network.
  • the protection data can be passed through the open ring protection link to ensure the connectivity of the service data.
  • nodes S1, S2, S5, S6, S3, and S4 in FIG. 6 form an Ethernet ring network.
  • nodes S5 and S6 other nodes support the G.8032 standard Ethernet ring network protection technology, node S1.
  • the link between the S4 and the S4 is a ring protection link, and the node S1 is the node to which the ring protection link belongs.
  • the node S1 can block or open the ring protection link by blocking and opening the control port 11. When the link of the Ethernet ring network is faultless, node S1 blocks port 11 to prevent protected data from passing through the ring protection link.
  • the detection link connectivity technology is enabled between the nodes S2 and S3 supporting the Ethernet ring protection technology adjacent to the nodes S5 and S6, respectively. .
  • the OAM detection frame between the nodes S2 and S3 cannot be connected, so the nodes S2 and S3 detect the link failure and block respectively. Connect to the faulty link end ports 22 and 31, and send a link failure alarm protocol frame to notify other nodes that support the Ethernet ring protection technology to perform protection switching. In the link failure alarm protocol frame. Includes its own node number.
  • the node S1 of the ring protection link After receiving the link failure alarm protocol frame, the node S1 of the ring protection link opens the blocked port 11 connected to the ring protection link.
  • the nodes on the Ethernet ring network refresh the address forwarding table to implement network protection switching.
  • the protected data can be protected. Passing through the open ring protection link, so nodes S2 ⁇ ->S1 ⁇ ->S4 ⁇ ->S3 can communicate, but nodes S2 and S3 both block the port connected to the faulty link end, causing the node S5 and S6 are not yet connected to other nodes.
  • the node number (2) of the node S2 included in the protocol frame is smaller than the node number of the node S3 (assumed to be 3).
  • the node S3 keeps the port 31 in a blocked state according to a condition set in advance by the method of the embodiment of the present invention.
  • the node number of the node S3 included in the protocol frame is greater than the node number of the node S2 (assumed to be 2), and the node S2 detects the chain.
  • the path is faulty, and the node S2 has blocked the port 22 connected to the failed link end.
  • the node S2 opens the blocked port 22 connected to the failed link end. After port 22 of node S2 is opened, node S5 can communicate with other nodes to ensure maximum connectivity of the network.
  • Figure 9-11 shows a more complex Ethernet ring network, where nodes Sl, S2, S5, S6, S7,
  • S8, S3, and S4 form an Ethernet ring network.
  • other nodes support the Ethernet ring protection technology of the G.8032 standard.
  • the link between nodes S1 and S4 is a ring protection link, and node S1 is a ring.
  • the node to which the protection link belongs, and the blocking and opening of the control port 11 by the node S1 can block or open the ring protection link.
  • node S1 blocks port 11 to prevent the protected data from passing through the ring protection link.
  • the detection link connectivity technology is enabled between the node S2 and the node S6 supporting the Ethernet ring protection technology adjacent to the node S5.
  • the detection link connectivity technique is enabled between the node S3 and the node S7 supporting the Ethernet ring protection technology adjacent to the node S8.
  • Ports 22 and 61 and send a link failure alarm protocol frame to notify other nodes supporting the Ethernet ring protection technology to perform protection switching, and include the node numbers of node S2 and node S6 in the link failure alarm protocol frame.
  • the node S1 of the ring protection link opens the blocked port 11 connected to the ring protection link.
  • the nodes on the Ethernet ring network refresh the address forwarding table to implement network protection switching.
  • the protected data can be protected. Passed through the open ring protection link.
  • the node number of the node S2 included in the protocol frame (assumed to be 2) is smaller than the node number of the node S6 (assumed to be 6), according to an embodiment of the present invention.
  • the set condition, node S6 keeps port 61 in a blocked state.
  • the node S2 After the node S2 receives the link failure alarm protocol frame of the node S6, since the node number of the node S6 included in the protocol frame is greater than the node number of the node S2, and the node S2 detects the link failure, and the node S2 has been blocked
  • the port 22 connected to the faulty link end according to the pre-set condition of the embodiment of the present invention, the node S2 opens the blocked port 22 connected to the faulty link end. After the port 22 of the node S2 is opened, the node S5 can communicate with other nodes to ensure maximum connectivity of the network.
  • FIG. 11 is a diagram, on the basis of FIG. 10, when the link between the node S3 and the node S8 fails, the OAM detection frame between the nodes S3 and S7 cannot be connected, so the nodes S3 and S7 detect the link failure, respectively blocking and Ports 31 and 72 connected to the faulty link end, and sending a link failure alarm protocol frame to notify other nodes supporting the Ethernet ring protection technology to perform protection switching, and respectively include respective node numbers in the link failure alarm protocol frame.
  • the node S7 After the node S7 receives the link failure alarm protocol frame of the node S6, since the node number of the node S6 included in the protocol frame is smaller than the node number of the node S7, the node S7 maintains the port 72 according to the pre-set condition of the embodiment of the present invention. Blocking state.
  • the node S6 After the node S6 receives the link failure alarm protocol frame of the node S7, since the node number of the node S7 included in the protocol frame is larger than the node number of the node S6, and the node S6 detects the link failure, and the node S6 has been blocked
  • the port 61 connected to the faulty link end according to the condition set in advance by the embodiment of the present invention, the node S6 opens the blocked port 61 connected to the faulty link end.
  • the link fault is detected to implement the network protection switch, and the protected data can pass through the open ring protection link to ensure The connectivity of business data.
  • the two Ethernet ring protection technology nodes that have detected the link fault receive the link failure alarm protocol frame of the other party, the node with the small node number (or unified to be large) opens the blocked port, and does not support the Ethernet ring.
  • the network protection technology node transmits service data through open ports and other nodes. Therefore, the embodiment of the present invention not only enables the incompatible Ethernet ring network node to be docked, but also ensures the maximum connectivity of the network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

一种保护以太环网节点间连通性的控制方法及装置及第一节点，控制方法包括：支持以太环网保护技术的第一节点同与之临近的支持以太环网保护技术的第二节点交互，检测链路连通性，该第一节点与该第二节点之间具有至少一个不支持以太环网保护技术的第三节点，且第一节点和第二节点之间不具有支持以太环网保护技术的节点；当第一节点检测到链路故障时，阻塞该第一节点与故障链路端相连的端口；第一节点向其他支持以太环网保护技术的节点发送链路故障告警协议帧，进行保护切换。根据本发明实施例提供的方法，当不支持以太环网保护技术节点的相连链路发生故障时，相邻的支持以太环网保护技术节点通过连通性检测到链路故障，实现网络保护切换，保障业务数据的连通性。

Description

保护以太环网节点间连通性的控制方法、 装置及第一节点
技术领域
本发明涉及以太环网技术， 尤其涉及当以太环网中存在不兼容设备时的 一种保护以太环网节点间连通性的控制方法、 装置及第一节点。 背景技术
以太网正朝着多业务承载方向发展， 且随着一些业务对网络的可靠性和 实时性等要求的提高，以太网已广泛釆用冗余组网方式来提高网络的可靠性， 满足业务的实时性等需求。 在以太网的冗余组网结构中， 通常要求保护倒换 的速度够快， 保护倒换的时长需在 50ms以内。
目前，涉及快速保护倒换的技术有互联网工程任务组（ Internet Engineering Task Force , IETF ) 提出的 RFC3619 标准和国际电信联盟 （International Telecommunication Union, ITU-T )提出的 G.8032标准等。
ITU-T提出的 G.8032标准中， 为环形拓朴以太网的以太层定义了自动保 护切换协议与机制， 这种自动保护切换方法适用于环形拓朴的以太网， 方法 实现流程如下： 在环形拓朴以太网中， 选择一段链路为环保护链路， 当以太 环网的链路均无故障时， 环保护链路的两个相邻节点中， 至少有一个节点阻 塞与环保护链路连接的端口， 防止被保护的数据从环保护链路上通过， 这样， 以太环网上任何两个节点之间只有唯一的通信路径， 因此以太环网中不会产 生通信路径的闭环， 防止了闭环和网络风暴； 当以太环网中的链路出现故障 时， 且发生故障的链路不是环保护链路时， 原阻塞与环保护链路相连端口的 节点打开被阻塞的端口， 使被保护的数据可从环保护链路上通过， 从而使通 信路径重新建立起来， 网络的可靠性得到提高。
图 1为基于 G.8032标准的以太环网结构示意图， 如图 1所示， 节点 Sl、 S2、 S3和 S4组成以太环网， 节点 S1和 S4之间的链路为环保护链路， 节点 S1为环保护链路所属节点， 节点 S1控制端口 11的阻塞和打开可使环保护链 路阻塞或者打开。 当以太环网的链路均无故障时， 节点 S1 阻塞端口 11 , 防 止被保护的数据从环保护链路上通过， 此时节点 S2和 S3之间的被保护数据 流量通信路径仅为 S2<—>S3 , 而不可能是 S2<—>S1<—>S4<—>S3。 在相邻 节点之间建立了 OAM ( Operation Administration and Maintenance, 操作、 管 理和维护）域来检测链路的连通性情况， OAM检测的基本原理是域的两个节 点相互发送检测帧给对端节点， 如果节点在一端时间内没有收到对端的检测 帧， 则检测出链路故障， 如果节点在检测出链路故障后， 又收到对端的检测 帧， 则检测出链路恢复。
图 2为图 1中链路出现故障后的以太环网结构示意图， 如图 2所示， 假 设节点 S2和节点 S3之间链路出现故障， 那么节点 S2和节点 S3在检测到故 障后， 分别阻塞与故障链路相连的端口 22和端口 31 , 并发送链路故障告警 协议帧通知其他支持以太环网保护技术的节点进行保护切换； 环保护链路所 属节点 S1收到链路故障告警协议帧后，打开阻塞的与环保护链路相连的端口 11 , 以太环网上各个节点刷新地址转发表， 以实现网络保护切换， 被保护数 据可以从打开的环保护链路上通过， 此时节点 S2和节点 S3之间被保护数据 的通信路径是 S2<—>S1<—>S4<—>S3。 这里， 链路故障是引起保护倒换的 其中一种情况， 实际应用中， 还可以包括手工倒换、 强行倒换等情况。
虽然 G.8032标准的以太环网等技术提供了自动保护切换协议与机制，但 是 G.8032推出的时间晚于以太网的应用时间， 因此实际网络中，支持 G.8032 的新设备和不支持 G.8032的老设备共同组网的场景非常普遍，经常存在以太 环网中有节点不支持 G.8032标准， 导致节点之间对接不兼容， 无法实现以太 环网的自动保护切换。
图 3中节点 Sl、 S2、 S5、 S6、 S3和 S4组成以太环网， 除了节点 S5和 S6外， 其他节点支持 G.8032标准的以太环网保护技术， 节点 S1和 S4之间 的链路为环保护链路， 节点 S1为环保护链路所属节点， 节点 S1控制端口 11 的阻塞和打开可使环保护链路阻塞或者打开。当以太环网的链路均无故障时， 节点 S1阻塞端口 11 , 防止被保护的数据从环保护链路上通过。 当节点 S5和 节点 S6之间链路出现故障时， 由于节点 S5和 S6均不支持 G.8032标准的以 太环网保护技术， 也不会向其他节点发送链路故障告警协议帧， 因此其他节 点不会获知故障状态，环保护链路所属节点 S1也不会打开阻塞的与环保护链 路相连的端口 11 , 这样环上存在两处中断： 节点 S1的端口 11和链路 S5<— >S6, 导致被保护数据流量中断。
因此在网络实际应用中， 支持以太环网保护技术的节点和不支持太环网 保护技术的的节点联合组网的场景越来越普遍， 如果没有一种对不兼容的以 太环网节点进行对接处理的技术， 将很大的妨碍网络保护切换技术的应用， 甚至导致网络故障， 因此需要一种对不兼容的以太环网节点进行对接处理的 技术， 保障网络的最大连通性。
发明内容
本发明实施例要解决的技术问题是提供一种与以太环网保护技术不兼容 能够进行保护切换， 保障网络的最大连通性。
为达到上述目的， 本发明实施例提供一种保护以太环网节点间连通性的 控制方法， 该方法包括： 支持以太环网保护技术的第一节点同与之临近的支 持以太环网保护技术的第二节点交互， 检测链路连通性， 其中该第一节点与 该第二节点之间具有至少一个不支持以太环网保护技术的第三节点， 且第一 节点和第二节点之间不具有支持以太环网保护技术的节点； 当支持以太环网 保护技术的第一节点检测到链路故障时， 阻塞该第一节点与故障链路端相连 的端口； 所述支持以太环网保护技术的第一节点向其他支持以太环网保护技 术的节点发送链路故障告警协议帧， 通知其他支持以太环网保护技术的节点 进行保护切换。
可选地， 上述的控制方法中， 所述链路故障告警协议帧中包含该第一节 点的第一节点号； 所述控制方法还包括： 在收到所述第二节点在检测到链路 故障时发送的链路故障告警协议帧后， 将接收到的链路故障告警协议帧中携 带的第二节点的第二节点号与第一节点号进行比较， 判断比较结果是否满足 预先设置的条件， 如果比较结果满足预先设置的条件， 则打开该支持以太环 网保护技术的第一节点阻塞的与故障链路端相连的端口。
可选地， 上述的控制方法中， 所述预先设置的条件为所述第二节点号大 于所述第一节点号， 或者所述第二节点号小于所述第一节点号。 为达到上述目的， 本发明实施例还提供一种保护以太环网节点间连通性 的控制装置， 该装置包括： 链路连通性检测单元， 设置为检测支持以太环网 保护技术的第一节点和与之相邻的支持以太环网保护技术的第二节点之间的 链路连通性， 所述第一节点和所述第二节点之间具有至少一个不支持以太环 网保护技术的第三节点， 且第一节点和第二节点之间不具有支持以太环网保 护技术的节点； 端口阻塞单元， 设置为当所述链路连通性检测单元检测到相 邻两个支持以太环网保护技术的第一节点和第二节点之间发生链路故障时， 阻塞所述第一节点与故障链路端相连的端口；链路故障告警协议帧收发单元， 设置为供所述支持以太环网保护技术的第一节点发送链路故障告警协议帧通 知其他支持以太环网保护技术的节点进行保护切换。
可选地， 上述的控制装置中， 所述链路故障告警协议帧中包含该第一节 点的第一节点号； 所述控制装置还包括： 比较判断控制单元， 设置为在收到 所述第二节点在检测到链路故障时发送的链路故障告警协议帧后， 将接收到 的链路故障告警协议帧中携带的第二节点的第二节点号与第一节点号进行比 较， 判断比较结果是否满足预先设置的条件， 如果比较结果满足预先设置的 条件， 则打开该支持以太环网保护技术的第一节点阻塞的与故障链路端相连 的端口。
可选地， 上述的控制装置中， 所述预先设置的条件为所述第二节点号大 于所述第一节点号， 或所述第二节点号小于所述第一节点号。 为达到上述目的， 本发明实施例还提供一种包括上述保护以太环网节点 间连通性的控制装置的节点设备。
釆用本发明实施例的方法及装置， 当不支持以太环网保护技术节点的相 连链路发生故障时， 与不支持以太环网保护技术节点相邻的支持以太环网保 护技术节点通过连通性检测， 能够检测到链路故障， 以实现网络保护切换， 被保护数据可以从打开的环保护链路上通过， 保障了业务数据的连通性。 同 时， 当两个检测到链路故障的支持以太环网保护技术节点相互收到对方的链 路故障告警协议帧后， 节点号小 （或者统一为大） 的节点打开阻塞端口， 不 支持以太环网保护技术节点通过打开的端口和其他节点传输业务数据。 因此 本发明实施例不仅仅使得不兼容的以太环网节点能够对接处理， 而且保障了 网络的最大连通性。 附图概述
图 1为基于 G.8032标准的以太环网结构示意图；
图 2为链路出现故障后的以太环网结构示意图；
图 3为以太环网中存在不支持以太环网保护技术节点的结构示意图； 图 4为本发明实施例保护以太环网节点间连通性的控制方法的流程图； 图 5为本发明实施例保护以太环网节点间连通性的控制装置的结构示意 图；
图 6为本发明一实施例以太环网结构示意图；
图 7为本发明一实施例以太环网中出现故障的处理示意图；
图 8为本发明一实施例以太环网中保障网络最大连通性的处理示意图； 图 9为本发明又一实施例以太环网结构示意图；
图 10为本发明又一实施例以太环网中出现故障的处理示意图； 图 11 为本发明又一实施例以太环网中保障网络最大连通性的处理示意 图。 本发明的较佳实施方式
下面将结合附图及具体实施例对本发明进行详细描述。
实施例一
本发明实施例提供的保护以太环网节点间连通性的控制方法具体如图 4 所示， 包括以下步骤：
步骤 S410: 支持以太环网保护技术的第一节点同与之临近的支持以太环 网保护技术的第二节点交互， 检测链路连通性， 其中该第一节点与该第二节 点之间具有至少一个不支持以太环网保护技术的第三节点， 且第一节点和第 二节点之间不具有支持以太环网保护技术的节点。
在以太环网中， 如果相邻两个节点均支持以太环网保护技术， 则在这两 个相邻节点之间检测链路连通性；
如果相邻两个节点不是均支持以太环网保护技术， 则在与不支持以太环 网保护技术节点相邻的两个支持以太环网保护技术节点之间， 通过穿透不支 持以太环网保护技术节点的方式来检测链路连通性。
步骤 S420: 当支持以太环网保护技术的第一节点检测到链路故障时， 阻 塞该第一节点与故障链路端相连的端口。
步骤 S430: 所述支持以太环网保护技术的第一节点向其他支持以太环网 保护技术的节点发送链路故障告警协议帧， 通知其他支持以太环网保护技术 的节点进行保护切换。
在该步骤中， 支持以太环网保护技术的第一节点在发送给其他支持以太 环网保护技术的节点的链路故障告警协议帧中包含该第一节点的节点号。
通过上述的方式即可实现大部分节点之间的导通。 但为了提高连通率， 本发明的具体实施例中， 还包括：
支持以太环网保护技术的第一节点收到支持以太环网保护技术的第二节 点在检测到链路故障后发送的链路故障告警协议帧后， 将检测到的链路故障 告警协议帧中携带的所述第二节点的第二节点号与该第一节点的第一节点号 进行比较， 判断比较结果是否满足预先设置的条件， 如果比较结果满足预先 设置的条件， 则打开该支持以太环网保护技术的第一节点阻塞的与故障链路 端相连的端口。
预先设置的条件为接收到的支持以太环网保护技术的第二节点发送的第 二节点号大于或小于支持以太环网保护技术的第一节点的第一节点号。
当然， 应当理解的是， 所有节点都使用相同的判断准则即可。
釆用本发明实施例提供的方法， 当不支持以太环网保护技术节点的相连 检测到链路故障， 然后阻塞故障端口， 发送链路故障告警协议帧通知其他支 持以太环网保护技术的节点进行保护切换， 环保护链路所属节点获知链路故 障后， 打开阻塞的与环保护链路相连的端口， 以太环网上各个节点刷新地址 转发表， 以实现网络保护切换， 被保护数据可以从打开的环保护链路上通过， 保障了业务数据的连通性。 但是由于两个检测到链路故障的支持以太环网保 护技术节点均阻塞了故障端口， 不支持以太环网保护技术节点无法和其他节 点传输业务数据， 不能保障网络的最大连通性。 当两个检测到链路故障的支 持以太环网保护技术节点相互收到对方的链路故障告警协议帧后， 如果发现 自身节点号小于 （或者统一为大于）对方节点的节点号， 则节点打开阻塞端 口，不支持以太环网保护技术节点通过打开的端口和其他节点传输业务数据。 因此本发明实施例不仅仅使得不兼容的以太环网节点能够对接处理， 而且保 障了网络的最大连通性。 实施例二：
本发明实施例提供的保护以太环网节点间连通性的控制装置， 用于第一 节点， 具体结构如图 5所示， 所述装置包括：
链路连通性检测单元 510 , 设置为检测支持以太环网保护技术的第一节 点和与之相邻的支持以太环网保护技术的第二节点之间的链路连通性， 所述 第一节点和所述第二节点之间具有至少一个不支持以太环网保护技术的第三 节点， 且第一节点和第二节点之间不具有支持以太环网保护技术的节点； 端口阻塞单元 520 , 当所述链路连通性检测单元检测到相邻两个支持以 太环网保护技术的第一节点和第二节点之间发生链路故障时， 阻塞所述第一 节点与故障链路端相连的端口；
链路故障告警协议帧收发单元 530 , 设置为供所述支持以太环网保护技 术的第一节点发送链路故障告警协议帧通知其他支持以太环网保护技术的节 点进行保护切换。
所述链路故障告警协议帧收发单元 530在发送给其他支持以太环网保护 技术的节点的所述链路故障告警协议帧中包含所述第一节点的节点号。
本发明实施例提供的装置还包括：
比较判断控制单元 540 , 所述支持以太环网保护技术的第一节点收到所 述支持以太环网保护技术的第二节点在检测到链路故障后发送的链路故障告 警协议帧后， 将检测到的所述链路故障告警协议帧中携带的所述第二节点的 第二节点号与自身的第一节点号进行比较， 判断比较结果是否满足预先设置 的条件， 如果比较结果满足预先设置的条件， 则打开该支持以太环网保护技 术的第一节点阻塞的与故障链路端相连的端口。
条件预先设置单元 550 , 设置为预先设置条件， 所述预先设置的条件为 接收到的所述支持以太环网保护技术的第二节点发送的第二节点号大于或小 于所述支持以太环网保护技术的第一节点的第一节点号。
本发明实施例提供保护以太环网节点间连通性的控制装置， 当不支持以 太环网保护技术节点的相连链路发生故障时， 与不支持以太环网保护技术节 以实现网络保护切换， 被保护数据可以从打开的环保护链路上通过， 保障了 业务数据的连通性。 实施例三
为使本发明实施例提供的保护以太环网节点间连通性的控制方法及装置 描述的更加清楚， 下面从全局方面提供另一具体优选实施例加以说明。
如图 6所示， 图 6中节点 Sl、 S2、 S5、 S6、 S3和 S4组成以太环网， 除 了节点 S5和 S6夕卜， 其他节点支持 G.8032标准的以太环网保护技术， 节点 S1和 S4之间的链路为环保护链路，节点 S1为环保护链路所属节点，节点 S1 通过控制端口 11的阻塞和打开可使环保护链路阻塞或者打开。 当以太环网的 链路均无故障时， 节点 S1 阻塞端口 11 , 防止被保护的数据从环保护链路上 通过。
由于节点 S5和 S6不支持以太环网保护技术，根据本发明实施例的技术， 分别与节点 S5和 S6相邻的支持以太环网保护技术的节点 S2和 S3之间启用 检测链路连通性技术。
再如图 7所示， 图 7中当节点 S5和节点 S6之间链路出现故障时， 节点 S2和 S3之间的 OAM检测帧不能连通， 因此节点 S2和 S3检测到链路故障， 分别阻塞与故障链路端相连端口 22和 31 , 并发送链路故障告警协议帧通知 其他支持以太环网保护技术的节点进行保护切换， 在链路故障告警协议帧中 包括自身的节点号。
环保护链路所属节点 S1收到链路故障告警协议帧后，打开阻塞的与环保 护链路相连的端口 11 , 以太环网上各个节点刷新地址转发表， 以实现网络保 护切换，被保护数据可以从打开的环保护链路上通过，因此节点 S2<—>S1<— >S4<->S3之间能够连通， 但是由于节点 S2和 S3均阻塞了与故障链路端相 连的端口， 导致节点 S5和 S6还不能和其他节点连通。
再如图 8所示，图 8中当节点 S3收到节点 S2的链路故障告警协议帧后， 由于协议帧中包括的节点 S2的节点号（2 )小于节点 S3的节点号（假定为 3 ) , 根据本发明实施例的方法预先设置的条件，节点 S3保持端口 31为阻塞状态。 当节点 S2收到节点 S3的链路故障告警协议帧后， 由于协议帧中包括的节点 S3的节点号 （假定为 3 ) 大于节点 S2的节点号 （假定为 2 ) , 并且节点 S2 检测到了链路故障， 并且节点 S2 已经阻塞了与故障链路端相连的端口 22 , 根据本发明实施例的方法预先设置的条件，节点 S2打开阻塞的与故障链路端 相连的端口 22。 在节点 S2的端口 22打开后， 节点 S5能够和其他节点连通， 保障了网络的最大连通性。 实施例四
为使本发明实施例提供的保护以太环网节点间连通性的控制方法及装置 描述的更加清楚， 下面从全局方面提供再一具体优选实施例加以说明。
图 9-图 11为一种更加复杂的以太环网， 其中节点 Sl、 S2、 S5、 S6、 S7、
S8、 S3、 S4组成以太环网， 除了节点 S5和 S8外， 其他节点支持 G.8032标 准的以太环网保护技术， 节点 S1和 S4之间的链路为环保护链路， 节点 S1 为环保护链路所属节点， 节点 S1控制端口 11的阻塞和打开可使环保护链路 阻塞或者打开。 当以太环网的链路均无故障时， 节点 S1 阻塞端口 11 , 防止 被保护的数据从环保护链路上通过。
由于节点 S5和 S8不支持以太环网保护技术，根据本发明实施例的方法， 节点 S5相邻的支持以太环网保护技术的节点 S2和节点 S6之间启用检测链路 连通性技术。节点 S8相邻的支持以太环网保护技术的节点 S3和节点 S7之间 启用检测链路连通性技术。 图 10中当节点 S5和节点 S6之间链路出现故障时，节点 S2和 S6之间的 OAM检测帧不能连通， 因此节点 S2和节点 S6检测到链路故障，分别阻塞与 故障链路端相连的端口 22和 61 , 并发送链路故障告警协议帧通知其他支持 以太环网保护技术的节点进行保护切换， 在链路故障告警协议帧中包括节点 S2和节点 S6的节点号。环保护链路所属节点 S1收到链路故障告警协议帧后， 打开阻塞的与环保护链路相连的端口 11 , 以太环网上各个节点刷新地址转发 表， 以实现网络保护切换， 被保护数据可以从打开的环保护链路上通过。 当 节点 S6收到节点 S2的链路故障告警协议帧后， 由于协议帧中包括的节点 S2 的节点号 (假定为 2)小于节点 S6的节点号（假定为 6 ) , 根据本发明实施例预 先设置的条件， 节点 S6保持端口 61为阻塞状态。 当节点 S2收到节点 S6的 链路故障告警协议帧后， 由于协议帧中包括的节点 S6的节点号大于节点 S2 的节点号， 并且节点 S2检测到了链路故障， 并且节点 S2已经阻塞了与故障 链路端相连的端口 22 , 根据本发明实施例预先设置的条件， 节点 S2打开阻 塞的与故障链路端相连的端口 22。 在节点 S2的端口 22打开后， 节点 S5能 够和其他节点连通， 保障了网络的最大连通性。
图 11为在图 10基础上， 当节点 S3和节点 S8之间链路出现故障时， 节 点 S3和 S7之间的 OAM检测帧不能连通， 因此节点 S3和 S7检测到链路故 障， 分别阻塞与故障链路端相连的端口 31和 72 , 并发送链路故障告警协议 帧通知其他支持以太环网保护技术的节点进行保护切换， 在链路故障告警协 议帧中分别包括各自的节点号。 当节点 S7收到节点 S6的链路故障告警协议 帧后， 由于协议帧中包括的节点 S6的节点号小于节点 S7的节点号， 根据本 发明实施例预先设置的条件， 节点 S7保持端口 72为阻塞状态。 当节点 S6收 到节点 S7的链路故障告警协议帧后， 由于协议帧中包括的节点 S7的节点号 大于节点 S6的节点号， 并且节点 S6检测到了链路故障， 并且节点 S6已经阻 塞了与故障链路端相连的端口 61 , 根据本发明实施例预先设置的条件， 节点 S6打开阻塞的与故障链路端相连的端口 61。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明实施例不限 制于任何特定形式的硬件和软件的结合。
最后应当说明的是，以上实施例仅用以说明本发明的技术方案而非限制， 本领域的普通技术人员应当理解， 可以对本发明实施例的技术方案进行修改 或者等同替换， 而不脱离本发明实施例技术方案的精神范围， 其均应涵盖在 本发明的权利要求范围当中。
工业实用性
釆用本发明实施例的方法及装置， 当不支持以太环网保护技术节点的相 够检测到链路故障， 以实现网络保护切换， 被保护数据可以从打开的环保护 链路上通过， 保障了业务数据的连通性。 同时， 当两个检测到链路故障的支 持以太环网保护技术节点相互收到对方的链路故障告警协议帧后， 节点号小 (或者统一为大） 的节点打开阻塞端口， 不支持以太环网保护技术节点通过 打开的端口和其他节点传输业务数据。 因此本发明实施例不仅仅使得不兼容 的以太环网节点能够对接处理， 而且保障了网络的最大连通性。

Claims

权 利 要 求 书
1、 一种保护以太环网节点间连通性的控制方法， 其特征在于， 用于支持 以太环网保护技术的第一节点， 该控制方法包括：
同与之临近的支持以太环网保护技术的第二节点交互，检测链路连通性， 其中该第一节点与该第二节点之间至少具有一个不支持以太环网保护技术的 第三节点，且第一节点和第二节点之间不具有支持以太环网保护技术的节点； 当检测到链路故障时， 阻塞所述第一节点与故障链路端相连的端口； 向以太环网其他支持以太环网保护技术的节点发送链路故障告警协议 帧， 通知其他支持以太环网保护技术的节点进行保护切换。
2、 根据权利要求 1所述的控制方法， 其中， 所述链路故障告警协议帧中 包含该第一节点的第一节点号； 所述控制方法还包括：
在收到所述第二节点在检测到链路故障时发送的链路故障告警协议帧 后， 将接收到的链路故障告警协议帧中携带的第二节点的第二节点号与第一 节点号进行比较， 判断比较结果是否满足预先设置的条件， 如果比较结果满 足预先设置的条件， 则打开该支持以太环网保护技术的第一节点阻塞的与故 障链路端相连的端口。
3、 根据权利要求 2所述的控制方法， 其中：
所述预先设置的条件为所述第二节点号大于所述第一节点号， 或者所述 第二节点号小于所述第一节点号。
4、 一种保护以太环网节点间连通性的控制装置， 其特征在于， 用于支持 以太环网保护技术的第一节点， 该控制装置包括：
链路连通性检测单元， 设置为同与第一节点临近的支持以太环网保护技 术的第二节点交互， 检测链路连通性， 其中该第一节点与该第二节点之间具 有至少一个不支持以太环网保护技术的第三节点， 且第一节点和第二节点之 间不具有支持以太环网保护技术的节点；
端口阻塞单元， 设置为当检测到链路故障时， 阻塞所述第一节点与故障 链路端相连的端口； 链路故障告警协议帧收发单元， 设置为向其他支持以太环网保护技术的 节点发送链路故障告警协议帧， 通知其他支持以太环网保护技术的节点进行 保护切换。
5、 根据权利要求 4所述的控制装置， 其中， 所述链路故障告警协议帧中 包含该第一节点的第一节点号； 所述控制装置还包括：
比较判断控制单元， 设置为在收到所述第二节点在检测到链路故障时发 送的链路故障告警协议帧后， 将接收到的链路故障告警协议帧中携带的第二 节点的第二节点号与第一节点号进行比较， 判断比较结果是否满足预先设置 的条件， 如果比较结果满足预先设置的条件， 则打开该支持以太环网保护技 术的第一节点阻塞的与故障链路端相连的端口。
6、 根据权利要求 5所述的控制装置， 其特征在于， 还包括： 所述预先设 置的条件为所述第二节点号大于所述第一节点号， 或所述第二节点号小于所 述第一节点号。
7、 一种支持以太环网保护技术的第一节点， 其中， 包括权利要求 4-6中 任意一项所述的控制装置。
PCT/CN2013/079156 2012-09-18 2013-07-10 保护以太环网节点间连通性的控制方法、装置及第一节点 WO2013182116A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2013271091A AU2013271091B2 (en) 2012-09-18 2013-07-10 Control method and device for protecting connectivity between Ethernet ring network nodes, and first node
EP13800155.7A EP2874351B1 (en) 2012-09-18 2013-07-10 Control method and device for protecting connectivity between ethernet ring network nodes, and first node
US14/421,320 US20150207674A1 (en) 2012-09-18 2013-07-10 Control Method and Device for Protecting Connectivity between Ethernet Ring Network Nodes, and First Node

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210346466.8 2012-09-18
CN201210346466.8A CN102857379B (zh) 2012-09-18 2012-09-18 保护以太环网节点间连通性的控制方法、装置及第一节点

Publications (1)

Publication Number Publication Date
WO2013182116A1 true WO2013182116A1 (zh) 2013-12-12

Family

ID=47403587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/079156 WO2013182116A1 (zh) 2012-09-18 2013-07-10 保护以太环网节点间连通性的控制方法、装置及第一节点

Country Status (5)

Country Link
US (1) US20150207674A1 (zh)
EP (1) EP2874351B1 (zh)
CN (1) CN102857379B (zh)
AU (1) AU2013271091B2 (zh)
WO (1) WO2013182116A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102857379B (zh) * 2012-09-18 2016-08-03 中兴通讯股份有限公司 保护以太环网节点间连通性的控制方法、装置及第一节点
US10623166B2 (en) * 2016-08-26 2020-04-14 T-Mobile Usa, Inc. Systems and methods for improved uptime for network devices
US10382301B2 (en) * 2016-11-14 2019-08-13 Alcatel Lucent Efficiently calculating per service impact of ethernet ring status changes
CN113438693A (zh) * 2017-11-17 2021-09-24 华为技术有限公司 信号传输的方法和装置
CN110417564B (zh) * 2018-04-26 2022-09-02 北京东土军悦科技有限公司 全网状的链路保护方法、装置、设备及存储介质
CN112995047A (zh) * 2019-12-16 2021-06-18 中兴通讯股份有限公司 流量控制方法、电子设备及存储介质
CN114629819A (zh) * 2020-12-10 2022-06-14 中移(苏州)软件技术有限公司 一种网络检测方法及装置、电子设备及存储介质
US11582063B2 (en) * 2021-02-23 2023-02-14 Cisco Technology, Inc. Network convergence mechanism for ring networks

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101022390A (zh) * 2007-03-21 2007-08-22 华为技术有限公司 一种对双归接入的rrpp环网的保护方法、系统和设备
US20090141641A1 (en) * 2007-11-29 2009-06-04 Alaxala Networks Corporation Communication device, communication system, and communication fault detection method
JP2009219047A (ja) * 2008-03-12 2009-09-24 Kddi Corp 階層型リングネットワークを構成する通信ノード装置、ネットワークシステム、プログラム及び方法
CN102857379A (zh) * 2012-09-18 2013-01-02 中兴通讯股份有限公司 保护以太环网节点间连通性的控制方法、装置及第一节点

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005003060A1 (de) * 2005-01-22 2006-08-03 Hirschmann Electronics Gmbh Verfahren zur Handhabung von Unterbrechungen in einem Ethernet-Ring
CN101232427A (zh) * 2007-01-23 2008-07-30 华为技术有限公司 一种以太网环保护方法及装置
US7990850B2 (en) * 2008-04-11 2011-08-02 Extreme Networks, Inc. Redundant Ethernet automatic protection switching access to virtual private LAN services
WO2011027361A2 (en) * 2009-09-07 2011-03-10 Tejas Networks Limited A method and system for ring protection switching
CN101789903B (zh) * 2009-12-30 2012-05-23 华为技术有限公司 一种半环网络的保护方法、设备及系统
US9960992B2 (en) * 2011-09-01 2018-05-01 Itxc Ip Holdings S.A.R.L. Systems and methods for routing data in a network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101022390A (zh) * 2007-03-21 2007-08-22 华为技术有限公司 一种对双归接入的rrpp环网的保护方法、系统和设备
US20090141641A1 (en) * 2007-11-29 2009-06-04 Alaxala Networks Corporation Communication device, communication system, and communication fault detection method
JP2009219047A (ja) * 2008-03-12 2009-09-24 Kddi Corp 階層型リングネットワークを構成する通信ノード装置、ネットワークシステム、プログラム及び方法
CN102857379A (zh) * 2012-09-18 2013-01-02 中兴通讯股份有限公司 保护以太环网节点间连通性的控制方法、装置及第一节点

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2874351A4 *

Also Published As

Publication number Publication date
EP2874351A1 (en) 2015-05-20
CN102857379B (zh) 2016-08-03
CN102857379A (zh) 2013-01-02
AU2013271091B2 (en) 2015-10-29
AU2013271091A1 (en) 2015-03-05
EP2874351B1 (en) 2017-09-13
US20150207674A1 (en) 2015-07-23
EP2874351A4 (en) 2015-07-01

Similar Documents

Publication Publication Date Title
WO2013182116A1 (zh) 保护以太环网节点间连通性的控制方法、装置及第一节点
US10469366B2 (en) Redundant ethernet automatic protection switching access to virtual private LAN services
EP2194676B1 (en) Ethernet ring system, its main node and intialization method
JP5508289B2 (ja) 多重リンク障害からのネットワーク回復システム及び方法
JP5913635B2 (ja) 冗長ネットワーク接続
CN101686158B (zh) 以太网环路保护故障恢复的控制方法及以太网环路节点
WO2010045832A1 (zh) 用于以太环网的链路聚合组的保护方法及装置
WO2008089614A1 (fr) Procédé, système et dispositif de protection d&#39;une liaison en anneau
WO2009111969A1 (zh) 以太环网中边缘端口阻塞的方法、以太环网系统和设备
WO2010031295A1 (zh) 一种以太网故障恢复的控制方法
WO2012162946A1 (zh) 一种报文处理方法及系统
JP5491644B2 (ja) イーサネットリングネットワークノードのアドレステーブルにおける反復リフレッシュの防止方法及び防止装置
EP2466804B1 (en) Protection switching method for ethernet automatic protection switching (eaps) ring network and master node in eaps ring network
WO2014029282A1 (zh) 跨域保护互通方法及系统
WO2009152700A1 (zh) 管理网络设备端口状态的方法、系统及中转设备
WO2012068866A1 (zh) 一种以太环网中刷新mac的方法及系统
WO2011079688A1 (zh) 一种半环网络的保护方法、设备及系统
WO2010094193A1 (zh) 一种以太网保护中协议通道的实现方法
CN102857423A (zh) 一种分布式链路聚合系统中业务流转发方法及节点
CN113037622B (zh) 一种防止bfd震荡的系统及方法
WO2009070958A1 (fr) Procédé et dispositif de détection d&#39;échec de circuit de jonction de plan utilisateur, de détection de récupération et d&#39;établissement de rapport de celle-ci
WO2011127736A1 (zh) 以太环网节点中保存信息的维护方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13800155

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2013800155

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14421320

Country of ref document: US

Ref document number: 2013800155

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2013271091

Country of ref document: AU

Date of ref document: 20130710

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE