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WO2019119269A1 - Procédé de détection de défaillance de réseau et dispositif centre de commande - Google Patents

Procédé de détection de défaillance de réseau et dispositif centre de commande Download PDF

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Publication number
WO2019119269A1
WO2019119269A1 PCT/CN2017/117224 CN2017117224W WO2019119269A1 WO 2019119269 A1 WO2019119269 A1 WO 2019119269A1 CN 2017117224 W CN2017117224 W CN 2017117224W WO 2019119269 A1 WO2019119269 A1 WO 2019119269A1
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Prior art keywords
network
network node
abnormal
node
path
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Ceased
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PCT/CN2017/117224
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English (en)
Chinese (zh)
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代明
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Cloudminds Shenzhen Robotics Systems Co Ltd
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Cloudminds Shenzhen Robotics Systems Co Ltd
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Priority to CN201780002589.0A priority Critical patent/CN108235800B/zh
Priority to PCT/CN2017/117224 priority patent/WO2019119269A1/fr
Publication of WO2019119269A1 publication Critical patent/WO2019119269A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity

Definitions

  • the prior art proposes to optimize the network in two ways: one is a CDN (Content Delivery Network) network technology, and the other is ADN (Application Delivery Networking, Application delivery network) network technology.
  • CDN Content Delivery Network
  • ADN Application Delivery Networking, Application delivery network
  • the ADN network technology is mainly used to accelerate the transmission of dynamic data.
  • the ADN network is used to accelerate the transmission of dynamic data, the network request is transmitted from the user terminal to the source station every time, and the source station dynamically generates a response and then responds.
  • the network request of the user terminal first arrives at the ADN network access node that is relatively close to the user terminal via the global load balancer of the ADN network. Then, through the global routing system of the ADN network, the optimal path from the access node to the source station corresponding to the network request is derived. Then, the network request of the user terminal is sequentially passed through several network nodes in the optimal path to reach the source station.
  • the ADN network has the effect of selecting an optimal path from a limited network resource, thereby reducing the transmission delay between the user terminal and the source station.
  • the embodiment of the present application provides a network fault detection method and a control center device, which are mainly used to solve the problem that when a network node in an ADN network fails, the network node cannot be found in time, thereby affecting the transmission performance of the network. .
  • an embodiment of the present application provides a network fault detection method, including: acquiring, by a control center device, a network connection state between network nodes in an ADN network; The connection status determines the anomalous network node in the ADN network.
  • an embodiment of the present application provides a control center device, including: an obtaining unit, configured to acquire a network connection state between network nodes in an ADN network of an application delivery network; and a determining unit, configured to acquire in an acquiring unit After the network connection status, the abnormal network node in the ADN network is determined according to the network connection status.
  • an embodiment of the present application provides a control center device, including: a communication interface, a memory, and a processor, the memory is configured to store computer execution code, and the computer execution code is used to control the processor to perform the implementation of the first aspect.
  • the network fault detection method provided by the example.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions for use in a control center device, which is designed to perform the network fault detection method provided by the embodiment of the first aspect above. code.
  • an embodiment of the present application provides a computer program that can be directly loaded into an internal memory of a computer and includes software code. After the computer program is loaded and executed by the computer, the embodiment of the first aspect can be implemented.
  • the network fault detection method provided.
  • the control center device detects the network node in the ADN network by using the network connection status between the network nodes in the acquired ADN network. Therefore, fault detection is implemented in the ADN network, so that when a network node in the ADN network fails, the fault can be found in time, thereby improving the operation and maintenance efficiency and service quality of the ADN network.
  • FIG. 1 is a schematic structural diagram of an ADN network system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a network fault detection method according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a control center device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a control center device according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a control center device according to an embodiment of the present application.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread in execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be a component.
  • One or more components can reside within a process and/or thread of execution, and a component can be located in a computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures thereon.
  • These components may be passed, for example, by having one or more data packets (eg, data from one component that interacts with the local system, another component of the distributed system, and/or signaled through, such as the Internet)
  • the network interacts with other systems to communicate in a local and/or remote process.
  • the application will present various aspects, embodiments, or features in a system that can include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, a combination of these schemes can also be used.
  • information, signal, message, and channel may sometimes be mixed. It should be noted that when the difference is not emphasized, The meaning to be expressed is the same. “of”, “corresponding (relevant)” and “corresponding” can sometimes be mixed. It should be noted that the meaning to be expressed is consistent when the distinction is not emphasized.
  • FIG. 1 a schematic structural diagram of an ADN network system provided by the present application, wherein when a user terminal device needs to access a source station, first, the user terminal device queries the global load balancer for an access node, and the global load balancer passes Load balancing, feeding back the appropriate access nodes for the user terminal equipment. The user terminal then sends a network request to the access node, and uses the global routing function of the ADN network to calculate the optimal path from the access node to the source station based on the link state and path configuration data between the network nodes. The network request is sent to the source station to provide network services to the user.
  • the path configuration data includes an IP (Internet Protocol) address of the access node of the network path, an IP address of the source station, and sometimes an IP address of the transit node and an IP address of the source node.
  • IP Internet Protocol
  • the return source node refers to the last hop network node of the source station.
  • the optimal path of each network node in the path configuration data is selected based on the link state between the network nodes. It should be noted that the network path included in the path configuration data may also be a complete network path. When the network path included in the path configuration data is a complete network path, the global routing of the ADN network is not required.
  • the function then re-selects the optimal path and directly sends the network request to the source station according to the network path in the path configuration data. For example, if the user terminal device sends a network request to the source station in FIG. 1, if the global load balancer is used to select the network node A as the access node, and the path configuration data further includes the access node of the network path as the network node. A. The source node is the network node E. Then, after the global routing function, the optimal path can be selected for the network request: user terminal equipment-network node A-network node C-network node E-source station.
  • the network node B is selected as the access node by using the global load balancer, and the path configuration data further includes the access node of the network path as the network node B and the return source node as the network node E. Then, after the global routing function, the optimal path can be selected for the network request: user terminal equipment-network node B-network node D-network node E-source station.
  • the ADN network system provided by the embodiment of the present application further includes a control center device, and the control center device can detect information such as a network connection state between each network node and a path configuration data of a network path corresponding to the network service, and use the data. Implementation of the application A network fault detection method. Then, after detecting that the network path is abnormal, the control center device can also send an alarm message to notify the operation and maintenance personnel to handle the fault in time.
  • the structure of the ADN network system described in this embodiment is for the purpose of more clearly explaining the technical solutions of the embodiments of the present application, and does not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided in the embodiments of the present application are applicable to similar technical problems in the ADN network system of different configurations.
  • the control center device acquires a network connection status between network nodes in the ADN network.
  • the ADN network node continuously detects the network connection between the network nodes, including the source node and the source station, and transmits all of the data to the control center device.
  • step S102 specifically includes the following contents of S102a1-S102a2:
  • S102a1 Determine, according to the network connection status, the number of network nodes that are not connected to the target network node.
  • S102a2 If the number of network nodes that are not connected to the target network node is greater than a threshold, determine that the target network node is an abnormal network node.
  • the connection status of the other network node to the target network node is utilized to determine the health status of the target network node.
  • the connection of the network node exceeding the threshold number to the target network node is unreachable, it is determined that the operation of the target network node is abnormal.
  • the method before performing step S102, further includes: acquiring path configuration data of the at least one network path, where the path configuration data includes a network node through which the network path passes.
  • Step S102 specifically includes:
  • the target network node is an abnormal network node.
  • the control center device stores path configuration data of each network service.
  • the path configuration data includes the access node of the network path corresponding to the network service, the network address of the source station, and sometimes the network address of the transit node and the return source node, and organizes the network nodes in the form of a configuration path.
  • the network node information in the path configuration data is selected, and an optimal path through these network nodes is selected.
  • the path configuration data of a network path is obtained, and the path configuration data is used to determine whether the target network node is included in the at least one network path and whether the target network node exists.
  • the network node is hopped to determine whether the connection of the specified last hop network node to the target network node is unblocked, thereby determining the operation of the target network node and the operation of at least one network path through the target network node.
  • the abnormal network node can filter out the actual network service.
  • the affected network is abnormally fluctuating, and the abnormal situation of the network nodes affecting the network service is more accurately determined. For example, if the connection of the network node A to the network node B is unreachable, but the network node A does not appear in any configuration path, that is, the network configuration node A is included in the path configuration data without any network path, even if the network node A reaches the network node
  • the connection of B is unreachable, and the network service carried in the ADN network is not affected. Therefore, the network node B is not used as an abnormal node at this time.
  • the path configuration data of a network path includes the network address of the access node of the network path, the network address of the source node, and the network address of the source station. Then, when the connection from the source node to the source station fails, it is determined that the source station is an abnormal node.
  • S103a1 Determine whether the abnormal network node is an access node in the network path.
  • S103a2 When it is determined that the abnormal network node is an access node in the network path, it is determined whether there is at least a preset number of network nodes that are not connected to the abnormal network node.
  • the access node selects the next hop network node, it may not be possible to select a suitable network node.
  • the abnormal network node is an access node in the network path, it is determined whether the network path is affected by determining the number of network nodes to the abnormal network node.
  • the method may further include: the control center device sends a stop scheduling instruction to the global load balancer, so that the global The load balancer stops scheduling network requests to the abnormal network node according to the stop scheduling instruction.
  • the method further includes: the control center device sending a recovery scheduling instruction to the global load balancer, so that the global load balancer resumes scheduling the network request to the abnormal network node according to the recovery scheduling instruction.
  • the control center device sends a stop scheduling instruction to the global load balancer, so that the global load balancer stops scheduling the network request to the abnormal network node. In turn, the problem that the transmission of subsequent network requests is affected due to the failure of the access node is avoided.
  • step S103 specifically includes:
  • S103b2 When the abnormal network node is another network node other than the access node in the network path, determine whether there is a designated last hop network node of the abnormal network node in the network path.
  • S103b3 If there is a specified last hop network node of the abnormal network node in the network path, and the previous hop network node fails to connect to the abnormal network node, it is determined that the network path runs abnormally; or if there is no abnormal network in the network path When the node specifies the last hop network node, and at least a predetermined number of network nodes reach the connection of the abnormal network node, it is determined that the network path is abnormal.
  • the impact of the abnormal node on the network path is determined in two cases:
  • the global routing function of the ADN network cannot bypass the two nodes and re-select the path for the network path.
  • the last hop network node fails to connect to the abnormal network node, it can be determined that the network path will be affected.
  • the network node A is the last hop network node of the network node B, and when the network node A is disconnected from the network node B, the network node A can determine The network path has been affected.
  • the abnormal network node selects the appropriate last hop network node.
  • the overall operation of the abnormal network node is determined by determining the number of network nodes that are not connected to the abnormal network node. At this time, if a preset number of network nodes are not connected to the abnormal network node, it may be determined that it may be difficult to select a suitable last hop network node for the abnormal network node even if the global routing function is utilized.
  • the network path runs abnormally.
  • the abnormal cause of the abnormal network node may be simultaneously recorded.
  • the abnormal cause of the abnormal network node detected by the method of S102a1-S102a2 is recorded as "the connection of the network node exceeding the threshold number to the local network node is unreachable"
  • the abnormal network node detected by the method of step S102b is used.
  • the cause of the exception is recorded as "No connection to the immediate neighbor in the network path.”
  • the abnormality cause of the abnormal network node can be directly used for detection.
  • the connection of the abnormal network node is unreachable, and the abnormality of the abnormal network node may be directly queried.
  • the reason is that when it is determined that the abnormal cause of the abnormal network node is “the connection of the network node exceeding the threshold number to the local network node is unreachable”, it may be directly determined that the network path is affected by the abnormal network node, and the network path runs abnormally. .
  • the abnormal network node when it is determined that the abnormal network node is another network node other than the access node in the network path B, the abnormal cause of the abnormal network node is queried, and when the abnormal reason is “in the network path B, the direct neighbor node is connected. If no, the abnormal network node determines that there is a specified last hop network node in the network path and the connection between the two adjacent nodes is unreachable, that is, the content of steps S103b2-S103b3 is completed.
  • the alarm information may be sent by sending an alarm email or a short message to notify the operation and maintenance personnel to solve the problem in time.
  • the alarm information includes location information of an abnormal network node that affects network path operation and an abnormality cause. In order to help the operation and maintenance personnel to determine the location and cause of the fault in time.
  • the control center device detects the network node in the ADN network by using the network connection status between the network nodes in the acquired ADN network. Therefore, fault detection is implemented in the ADN network, so that when a network node in the ADN network fails, the fault can be found in time, thereby improving the operation and maintenance efficiency and service quality of the ADN network.
  • FIG. 3 shows a possible structural diagram of a control center device involved in the present application.
  • the control center device 30 includes: an obtaining unit 301 and a determining unit 302, where:
  • the obtaining unit 301 is configured to acquire a network connection state between network nodes in the ADN network of the application delivery network.
  • the determining unit 302 is configured to determine, after the acquiring unit 301 acquires the network connection status, the abnormal network node in the ADN network according to the network connection status.
  • the determining unit 302 is configured to determine, according to the network connection status, the number of network nodes that are not connected to the target network node; and determine the target network if the number of network nodes that are not connected to the target network node is greater than a threshold.
  • the node is an abnormal network node.
  • the obtaining unit 301 is further configured to acquire path configuration data of at least one network path, where the path configuration data includes a network node through which the network path passes;
  • the determining unit 302 is configured to determine, according to the network connection status and the path configuration data of the at least one network path, that the target network node has a specified last hop network node in the at least one network path, and the last hop network node to the target network node When the connection is unreachable, it is determined that the target network node is operating abnormally.
  • the detecting unit 303 is configured to detect, after the determining unit 302 determines the abnormal network node in the ADN network according to the network connection status, the network path that passes through the abnormal network node;
  • the sending unit 304 is configured to send an alarm message when the detecting unit 303 detects that the network path is abnormal.
  • the sending unit 304 is further configured to: after the detecting unit abnormal network node is an access node in the network path, send a stop scheduling instruction to the global load balancer, so that the global load balancer stops the network request according to the stop scheduling instruction. Dispatched to the abnormal network node.
  • the detecting unit 303 is specifically configured to determine whether the abnormal network node is an access node in the network path; when the abnormal network node is another network node other than the access node in the network path, Whether there is a specified last hop network node of the abnormal network node in the network path;
  • the network path runs abnormally; or if there is no abnormal network node in the network path.
  • the last hop network node is specified, and at least a predetermined number of network nodes are disconnected from the abnormal network node, it is determined that the network path is abnormal.
  • control center device in the embodiment of the present application can be applied to implement the foregoing method embodiments. Therefore, the technical solutions that can be obtained are also referred to the foregoing method embodiments.
  • FIG. 4 shows a possible structural diagram of the control center device involved in the above embodiment.
  • the control center device 40 includes a processing module 401 and a communication module 402.
  • the processing module 401 is configured to control and control the actions of the control center device.
  • the processing module 401 is configured to support the control center device to perform steps S102, S103 and/or other processes for the techniques described herein in FIG.
  • Module 401 is also used to control communication module 402 to support the control center device to perform steps S101, S104 and/or other processes for the techniques described herein in FIG.
  • Communication module 402 is used to support
  • the control center device 40 can also communicate with other physical devices.
  • the control center device 40 can also include a storage module 403 for storing program codes and data of the control center device 40.
  • control center device When the processing module 401 is a processor, the communication module 402 is a communication interface, and the storage module 403 is a memory, the control center device according to the embodiment of the present invention may be the control center device shown in FIG. 5.

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  • Environmental & Geological Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de détection de défaillance de réseau et un dispositif, s'appliquant au domaine des communications. Les modes de réalisation de la présente invention peuvent détecter un nœud de réseau au sein d'un réseau d'ADN. Le procédé comprend les étapes suivantes : un dispositif centre de commande acquiert un état de connexion de réseau entre des nœuds de réseau au sein d'un réseau d'ADN ; et détermine un nœud de réseau anormal au sein du réseau d'ADN en fonction de l'état de connexion de réseau. La présente invention est appliquée à la détection de défaillances au sein d'un réseau d'ADN.
PCT/CN2017/117224 2017-12-19 2017-12-19 Procédé de détection de défaillance de réseau et dispositif centre de commande Ceased WO2019119269A1 (fr)

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Application Number Priority Date Filing Date Title
CN201780002589.0A CN108235800B (zh) 2017-12-19 2017-12-19 一种网络故障探测方法、控制中心设备及计算机存储介质
PCT/CN2017/117224 WO2019119269A1 (fr) 2017-12-19 2017-12-19 Procédé de détection de défaillance de réseau et dispositif centre de commande

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CN111988191B (zh) * 2019-05-22 2022-03-29 北京华为数字技术有限公司 一种分布式通信网络的故障检测方法及装置
CN112566123B (zh) * 2019-09-09 2023-03-28 中国移动通信有限公司研究院 一种确定异常网络节点的方法及装置
CN112994947A (zh) * 2021-03-30 2021-06-18 建信金融科技有限责任公司 一种网络运维方法、装置、存储介质及电子设备

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