WO2012079405A2 - Procédé et système de traitement de trace de liaison - Google Patents

Procédé et système de traitement de trace de liaison Download PDF

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Publication number
WO2012079405A2
WO2012079405A2 PCT/CN2011/080315 CN2011080315W WO2012079405A2 WO 2012079405 A2 WO2012079405 A2 WO 2012079405A2 CN 2011080315 W CN2011080315 W CN 2011080315W WO 2012079405 A2 WO2012079405 A2 WO 2012079405A2
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WO
WIPO (PCT)
Prior art keywords
ccm
link
port
record field
path record
Prior art date
Application number
PCT/CN2011/080315
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English (en)
Chinese (zh)
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WO2012079405A3 (fr
Inventor
黄登成
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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.)
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Publication of WO2012079405A2 publication Critical patent/WO2012079405A2/fr
Publication of WO2012079405A3 publication Critical patent/WO2012079405A3/fr

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Classifications

    • 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
    • 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
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route

Definitions

  • the present invention relates to the field of communications, and in particular, to a link tracking processing method and system.
  • the 802.1ag standard provides logical point-to-point connectivity detection for Connectivity Fault Management (CFM), ie, Connectivity Check (CC), Link Tracking, and Faults. Point confirmation and isolation.
  • CCM Connectivity Fault Management
  • CC Connectivity Check
  • Link Tracking Link Tracking
  • Faults Point confirmation and isolation.
  • the CC provides logical point-to-point connectivity detection, and the connectivity check is implemented by periodically sending a Connectivity Check Message (CCM).
  • CCM is a protocol frame that provides connectivity detection management.
  • Each Maintenance Sets End Point Identifier (MEP) periodically sends multicast CCM packets to all MEPs in the list according to the remote MEP table, and tells the other party that the peer MEP is in the maintenance set (maintenance associations). , referred to as connectivity within MA).
  • Link Trace is the main means for checking the fault point of the network, including two types of packets: Link Trace Message (LTM) and link tracking. Response (Link Trace Response, referred to as LTR).
  • LTM Link Trace Message
  • LTR Link Trace Response
  • the LT is used to detect the path between the MEPs. It is similar to the Route Trace command in the operating system.
  • the SP calculates the LTR message by sending a multicast LTM message to the specified device and listening to the device along the path. Path information to the specified MEP device.
  • the implementation of the LT function may be: Each maintenance point (MP) of the LTM message will respond to the received LTM message, generate an LTR message, and send it back to the source MP; The MP parses the received message response and obtains a link path.
  • MP maintenance point
  • FIG. 1 is a schematic diagram of a CCM message format definition according to the related art
  • FIG. 2 is a schematic diagram of a LTM message format definition according to the related art, as shown in FIG. 1 and FIG. 2, wherein TIN represents a message format definition method. , divided into 3 parts, type (Type), length (Length), value (Value).
  • Type type
  • Length length
  • Value Value
  • the specific definition can be found in the IEEE802.1ag standard, which is not described here. It can be seen that the CC provides logical point-to-point connectivity detection, and periodically sends detection messages periodically, but this method can only detect the link with fault, but cannot determine the location; and LT is to detect between MEPs. The path can detect the point of failure of the network.
  • a primary object of the present invention is to provide a link tracking processing scheme to solve the problem in the above related art that the fault location cannot be determined using continuity detection.
  • a link tracking processing method is provided.
  • the tracking processing method of the link includes the following steps: the receiving port receives the CCM, wherein the CCM carries a link path record field for indicating a CCM way port; the receiving port updates the link path record field, and The updated link path record field is carried to the CCM and sent to the next port.
  • the method further includes: the receiving port determines the current link state of the CCM according to the link path record field, and according to the current chain of the CCM The road status is prompted.
  • the receiving port determines the current link state of the CCM according to the link path record field, and prompting according to the current link state of the CCM includes: recording the MAC address of the CCM passing port and the MAC address of the receiving port according to the link path record field Determining whether the link of the CCM is looped, and generating a corresponding alarm prompt when the link of the CCM is looped; and/or, the link path record field in the CCM received by the interface port this time is the last time The received link path record field in the CCM is compared to determine whether the link of the CCM is changed, and in the case where the link of the CCM is changed, a corresponding link change prompt is generated.
  • the method before the receiving port receives the CCM, the method further includes: the starting port adding a link path record field in the CCM, and setting the number of MPs passing through the CCM in the link path record field to 1, and starting The MAC address of the originating port is filled in the link path record field as the MAC address of the CCM path port.
  • updating the content of the link path record field further comprises: setting a link state identifier in the link path record field to 1 in case of a link change of the CCM; if the link of the CCM is unchanged Set the link state identifier in the link path record field to 0.
  • the content of the receiving port update link path record field includes at least one of the following: modifying the number of MPs that the CCM passes, modifying the link state identifier of the CCM, and adding the MAC address of the CCM transit port.
  • a link tracking processing system is also provided.
  • a tracking processing system for a link includes a start port, one or more intermediate ports, and a destination port, wherein the intermediate port includes: a receiving module configured to receive a CCM, wherein the CCM is carried for indicating The CCM passes the link path record field of the port; the update module is set to update the content of the link path record field; and the sending module is configured to carry the updated link path record field to the CCM and send it to the next intermediate port or Terminate the destination port.
  • the intermediate port further includes: a prompting module, configured to determine a current link state of the CCM according to the link path record field, and prompting according to the current link state of the CCM.
  • the prompting module is further configured to determine whether the link of the CCM is looped according to the MAC address of the CCM transiting port and the MAC address of the receiving port in the link path record field, and generate a corresponding link when the CCM link is looped. And/or, comparing the link path record field in the CCM received by the interface port with the link path record field in the CCM received last time, determining whether the link of the CCM is changed, and In the case of a link change of the CCM, a corresponding link change prompt is generated.
  • the start port includes: an adding module, configured to add a link path record field in the CCM; and a setting module, configured to set the number of MPs passing through the CCM in the link path record field to 1, and The MAC address of the originating port is filled in the link path record field as the MAC address of the CCM path port.
  • an adding module configured to add a link path record field in the CCM
  • a setting module configured to set the number of MPs passing through the CCM in the link path record field to 1
  • the MAC address of the originating port is filled in the link path record field as the MAC address of the CCM path port.
  • FIG. 1 is a schematic diagram of a CCM message format definition according to the related art
  • FIG. 2 is a schematic diagram of an LTM message format definition according to the related art
  • FIG. 1 is a schematic diagram of a CCM message format definition according to the related art
  • FIG. 2 is a schematic diagram of an LTM message format definition according to the related art
  • FIG. 1 is a schematic diagram of a CCM message format definition according to the related art
  • FIG. 2 is a schematic diagram of an LTM message format definition according to the related art
  • FIG. 2 is a schematic diagram of an LTM message format definition according to the related art
  • FIG. 3 is a link tracking processing method according to an embodiment of the present invention
  • Figure 4 is a block diagram showing the structure of a tracking processing system for a link according to an embodiment of the present invention
  • Figure 5 is a block diagram showing the structure of a tracking processing system for a link according to a preferred embodiment of the present invention
  • 6 is a schematic diagram of a new field link path record field definition according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a CCM implementing link tracking detection under a networking condition according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for tracking a link according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps: Step S302: A receiving port receives a continuity check message (CCM), where, in a CCM Carrying a link path record field for indicating a CCM path through port; Step S304, receiving the content of the port update link path record field, and carrying the updated link path record field to the CCM for transmission to the next port.
  • CCM continuity check message
  • the method of carrying the link path record field for indicating the CCM path port in the CCM is adopted, and the problem that the fault location cannot be determined by using the continuity detection in the related art is solved, so that the system can use the CCM to track the link.
  • the state improves the processing power of the system.
  • the receiving port may determine the current link state of the CCM according to the link path record field, and according to the current CCM status. The link status is prompted.
  • the method can effectively track the CCM in real time and notify the user of the status, which enhances the performance of the system and improves the user experience.
  • the receiving port determines the current link state of the CCM according to the link path record field, and prompting according to the current link state of the CCM includes: recording the MAC address of the CCM passing port and the MAC address of the receiving port according to the link path record field Determining whether the link of the CCM is looped, and generating a corresponding alarm prompt when the link of the CCM is looped; and/or, the link path record field in the CCM received by the interface port this time is the last time The received link path record field in the CCM is compared to determine whether the link of the CCM is changed, and in the case where the link of the CCM is changed, a corresponding link change prompt is generated.
  • the method can make the user clearly know the routing status of the service, discover the link problem in time, and improve the effectiveness and accuracy of the system.
  • the originating port may add a link path record field in the CCM, and set the number of MPs passing through the CCM in the link path record field to 1, and the MAC address of the start port. The address is filled in the link path record field as the MAC address of the CCM path port.
  • the method is simple and practical, and has high operability.
  • updating the content of the link path record field further includes: setting a link state identifier in the link path record field to 1 in the case of a link change of the CCM; In the case of no change, the link state identifier in the link path record field is set to zero.
  • the method can detect the routing state of the CCM link, notify the user of the link change, and improve the system processing capability.
  • the content of the receiving port update link path record field includes at least one of: modifying the number of MPs through which the CCM passes, modifying the link state identifier of the CCM, and adding the MAC address of the CCM way port. The method is simple and practical, and has high operability.
  • an embodiment of the present invention further provides a link tracking processing system.
  • 4 is a structural block diagram of a link tracking processing system according to an embodiment of the present invention.
  • the system 40 includes a start port 42, one or more intermediate ports 44, and a destination port 46, where
  • the intermediate port 44 includes: a receiving module 442, configured to receive a continuity detection message CCM, where the CCM carries a link path record field for indicating a CCM path port; an update module 444, coupled to the receiving module 442, configured to update The content of the link path record field; and the sending module, configured to carry the updated link path record field to the CCM for transmission to the next intermediate port or destination port.
  • the method of carrying the link path record field for indicating the CCM path port in the CCM is adopted, and the problem that the fault location cannot be determined by using the continuity detection in the related art is solved, so that the system can use the CCM to track the link.
  • the state of the system improves the processing power of the system. It should be noted that the start port 42, the intermediate port 44, and the destination port 46 referred to herein are for a certain
  • the CC message is initiated from the start port 42 and ends through one or more intermediate ports 44 to the destination port 46.
  • the originating port 42 may also be the destination port 46, and each port in the ring link may be the initiator of a certain CC message ( ⁇ , start port 42).
  • . 5 is a structural block diagram of a link tracking processing system according to a preferred embodiment of the present invention.
  • the intermediate port 44 further includes: a prompting module 446 coupled to the updating module 444, configured to record a field according to the link path. Determine the current link state of the CCM and prompt according to the current link state of the CCM.
  • the prompting module 446 is further configured to determine whether the link of the CCM is looped according to the MAC address of the CCM transiting port and the MAC address of the receiving port in the link path record field, and generate the link when the CCM link is looped. Corresponding alarm prompts; and/or, the link path in the CCM received by the interface port this time The recorded field is compared with the link path record field in the last received CCM to determine whether the link of the CCM is changed, and in the case where the link of the CCM is changed, a corresponding link change prompt is generated.
  • the start port 42 includes: an add module 422 configured to add a link path record field in the CCM; and a setting module 424 coupled to the add module 422 and the receive module 442, configured to be in the link path record field
  • the number of MPs passed by the CCM is set to 1, and the MAC address of the originating port is filled in the link path record field as the MAC address of the CCM path port.
  • FIG. 6 is a schematic diagram of a new field link path record field definition according to an embodiment of the present invention.
  • a TIN field may be added to a CCM message, which is called a link path record field (Link Trace Record TIN). ), record the MAC address of the passed MP.
  • Link Trace Record TIN a link path record field
  • each MP of the CCM message path adds the MAC address of the port to the TIN field and saves it directly, so that the packets received by the MP through the path know all the paths that the CCM message has passed before.
  • the tracking processing method of the link in this embodiment may include the following steps: Step 1: The starting port (port 1) sends a CCM packet, where the link path record field in the packet includes the MAC address of port 1. MAC1, and the number of MPs passed by 1. Step 2: The CCM message is sent to the port 2 with the service, and the port 2 receives the parsed CCM message, saves the useful information, and modifies the link path record field in the CCM message, and adds the MAC address MAC2 of the port 2 at the end of the field. The number of MPs is incremented by 1, and then forwarded to the next port 3 with the service. The node in the network (that is, the intermediate port) repeats step 2 and sends it to the destination port.
  • Step 1 The starting port (port 1) sends a CCM packet, where the link path record field in the packet includes the MAC address of port 1. MAC1, and the number of MPs passed by 1.
  • Step 2 The CCM message is sent to the port 2 with the service, and the port 2 receive
  • the destination port resolves the CCM packet. From the link path record field in the CCM packet, the MAC address of all ports through which the service passes can be obtained. address. This will let you know all the port paths that this service has passed. It can be seen that the CC connectivity check is to periodically send a packet to detect the connected line.
  • the LT is the result of reporting the link path after the instance is enabled. According to the solution of the embodiment, the link can be performed in real time without manual operation. Tracking, quickly locate the faulty port, and obtain the network change according to the link tracking result. That is, if the link is protected, the protocol that needs to know the network path, such as STP, can directly obtain the link path that has been obtained.
  • FIG. 7 is a schematic diagram of implementing link tracking detection by a CCM under network conditions according to an embodiment of the present invention.
  • the MAC address of each port is indicated in the figure, in this embodiment.
  • the service is forwarded through port 2 and port 3 and sent to the destination port through the network.
  • MP Num indicates the number of MPs passing through, and the first one can be filled with 1;
  • Link Status indicates whether the link changes, 0 indicates no change, and 1 indicates change.
  • Step S706 the CCM message is received on the port 3, and the judgment is performed according to the CC protocol processing rule, and the storage operation is performed.
  • MP Num is incremented by 1, and the MAC address of port 3 is added to the end of the link path record field 00-00-00-00-00-00-03.
  • the CCM packet is discarded after being processed, and is not forwarded.
  • the CCM passes through those MAC addresses, thereby knowing the connection status of the MAC network.
  • the MAC address in the link path record field may be checked. If it is the same, indicating that the link is looped, a broadcast storm may be caused, and a corresponding prompt is made. It is also possible to check when there is a change in the MAC address record. If there is a change, the path through which the data passes is not the same. Set Link Status to 1.
  • the embodiment of the present invention can be operated, managed, and maintained based on the IEEE 802.1ag standard Ethernet. It is a method for implementing link tracking monitoring in CFM, and the function of link tracking is integrated into the CC, which can be real-time. Tracking the link to solve the problem of using the continuity detection in the related art to determine the fault location, and improving the processing capability of the system.
  • the various modules or steps of the present invention described above may be implemented on a general purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices, optionally, they may be calculated
  • the program code executable by the apparatus is implemented such that they may be stored in the storage device by the computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or They are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Computer And Data Communications (AREA)
  • Debugging And Monitoring (AREA)

Abstract

L'invention concerne un procédé et un système de traitement de trace de liaison. Le procédé comprend les étapes suivantes : un port de réception reçoit un message de contrôle de continuité (CCM), le CCM contenant un champ d'enregistrement de chemin de liaison destiné à indiquer les ports par l'intermédiaire desquels le CCM passe ; le port de réception met à jour le contenu du champ d'enregistrement de chemin de liaison, et envoie à un port suivant le CCM contenant le champ d'enregistrement de chemin de liaison mis à jour. Grâce à la présente invention, le système peut utiliser le CCM pour tracer l'état de la liaison, améliorant ainsi la capacité de traitement du système.
PCT/CN2011/080315 2010-12-16 2011-09-28 Procédé et système de traitement de trace de liaison WO2012079405A2 (fr)

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CN201010592163.5 2010-12-16
CN201010592163.5A CN102571464B (zh) 2010-12-16 2010-12-16 链路的跟踪处理方法及系统

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CN103684887A (zh) * 2013-12-31 2014-03-26 杭州华三通信技术有限公司 一种连通错误检测组网系统硬件表项生成的方法及设备
CN105450469A (zh) * 2015-12-01 2016-03-30 许继电气股份有限公司 一种工业设备中快速通信总线故障检测方法

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CN107784065B (zh) * 2017-08-17 2021-04-27 平安壹钱包电子商务有限公司 业务数据跟踪方法、装置、计算机设备及存储介质
CN110380893B (zh) * 2019-06-19 2022-08-12 深圳壹账通智能科技有限公司 通讯故障分析方法、装置及区块链通讯平台
CN114338568B (zh) * 2020-09-30 2024-03-01 中车株洲电力机车研究所有限公司 数据流统计方法及以太网交换机

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CN101771614A (zh) * 2010-01-15 2010-07-07 瑞斯康达科技发展股份有限公司 一种dhcp路径追踪方法及一种dhcp中继设备

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CN103684887A (zh) * 2013-12-31 2014-03-26 杭州华三通信技术有限公司 一种连通错误检测组网系统硬件表项生成的方法及设备
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CN105450469A (zh) * 2015-12-01 2016-03-30 许继电气股份有限公司 一种工业设备中快速通信总线故障检测方法

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CN102571464A (zh) 2012-07-11
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