WO2014008809A1 - Procédé et système pour la détection de perte de trames - Google Patents

Procédé et système pour la détection de perte de trames Download PDF

Info

Publication number
WO2014008809A1
WO2014008809A1 PCT/CN2013/077818 CN2013077818W WO2014008809A1 WO 2014008809 A1 WO2014008809 A1 WO 2014008809A1 CN 2013077818 W CN2013077818 W CN 2013077818W WO 2014008809 A1 WO2014008809 A1 WO 2014008809A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
frame
measurement
message frame
identifier
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/077818
Other languages
English (en)
Chinese (zh)
Inventor
吴少勇
苏卉
杨瑾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Publication of WO2014008809A1 publication Critical patent/WO2014008809A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • H04L43/0835—One way packet loss

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a method and system for determining lost frames. Background technique
  • a maintenance entity group in the OAM includes a maintenance endpoint (MEP, MEG End Point) located at both ends of the MPLS-TP transmission path, and a maintenance intermediate point (MIP) located in the middle of the MPLS-TP transmission path;
  • MEP maintenance endpoint
  • MIP maintenance intermediate point
  • the source MEP sends a Lost Measurement Message (LMM, Loss Measurement Message) to the sink MEP, and then the MEP returns a Lost Measurement Response (LMR, Loss Measurement Response) to the source MEP, and the source MEP from the local information and
  • LMM Lost Measurement Message
  • LMR Loss Measurement Response
  • TxFCf indicates the local frame count when transmitting the LMM
  • RxFCf indicates the local receive frame count when the LMM is received
  • TxFCb indicates the local frame count when transmitting the LMR
  • the TxFCf is written to the LMM; when the sink MEP receives When it reaches the LMM, copy the TxFCf in the received LMM to the LMR, and write the RxFCf and TxFCb to the LMR, and then the sinking MEP sends the LMR.
  • the source MEP receives the LMR, record the TxFCf and RxFCf in the LMR. , TxFCb, and the local receive frame count RxFCl at the time of receiving the LMR.
  • Frame Loss [far-end]
  • Frame Loss [near-end]
  • the G-ACH (Generic Associated Channel) of the LM frame sent by the source MEP is a specific fixed value.
  • the MIP transparently transmits the LM frame according to the transport label, and does not parse the G-ACH header. Therefore, the LM frame cannot be recognized.
  • the transport label is popped up. Furthermore, it is parsed into the G-ACH header, and it is determined whether or not the LM frame is processed based on whether the G-ACH is a specific fixed value, and therefore only the MEP node processes the LM frame.
  • the LM function can only be applied to determine the frame loss between the MEP nodes, and cannot be used for the frame loss measurement of the MIP node. Therefore, the LM function cannot be specifically located. The specific MIP node where the frame is lost.
  • the MEP node counts the transmission and reception of frames, that is, there is no counting information about the transmission and reception frames on the MIP node, and the LM function is a measurement method for frame loss between nodes, when MIP When there is no counting of the transmitted and received frames on the node, it is impossible to determine the frame loss between the MEP and the MIP node. For details, refer to FIG. 1.
  • the nodes SI and S6 are MEPs, and the other nodes S2 to S5 are MIPs.
  • the nodes S1 and S6 can interact with each other through the LMM and the LMR. , can detect the frame loss, but because the frame loss cannot be measured between the MEP and the MIP node, the specific frame loss node cannot be detected.
  • only the specific MIP node that locates the dropped frame can further analyze the specific reason of the frame loss on the node and find the fundamental problem.
  • the LM function specified in OAM can solve the problem of frame loss measurement between MEPs, but LM in OAM can only be applied to frame loss measurement between MEP and MEP, which cannot be used for MEP and MIP. Frame loss measurement.
  • some networks that do not support OAM that is, no MEP nodes and no MIP nodes, also require a lost frame measurement to locate the fault. Summary of the invention
  • the main object of the embodiments of the present invention is to provide a method and system for determining a lost frame, which can accurately locate a node that loses frames.
  • a method for determining a lost frame comprising:
  • the first node and the second node that need to perform the lost frame measurement respectively count the respective frame counts
  • the first node sends a measurement message frame including a frame count of the first node and an identifier that can be identified by the second node to the second node;
  • the second node After receiving the measurement message frame, the second node sends a measurement response message frame including a frame count of the second node and an identifier that can be identified by the first node;
  • the first node After receiving the measurement response message frame, the first node determines a frame loss situation between the first node and the second node;
  • the identifier that can be identified by the second node includes the purpose of the measurement message frame One or more of an address, a time-to-live (TTL), a type and/or a label, a pre-agreed identifier; the identifier that can be identified by the first node includes a destination address, a TTL, a type of the measurement response message frame And/or label, one or more of the pre-agreed identifiers.
  • TTL time-to-live
  • the determining, by the first node, the measurement message frame that includes the frame count of the first node and the identifier that can be identified by the second node is:
  • the first node sets the destination address of the measurement message frame to the destination address of the second node, or sets the TTL of the measurement message frame to be the distance from the second node hop, or determines the type of the message frame and/or Or the label is set to a pre-agreed value, or after the pre-agreed identifier is set in the measurement message frame, the frame count of the first node is included in the measurement message frame for transmission.
  • the measurement response message frame in which the second node sends the frame count including the second node and the identifier that can be identified by the first node is:
  • the second node sets the destination address of the measurement response message frame to the destination address of the first node, or sets the TTL of the measurement response message frame to be the distance from the first node, or determines the response message frame.
  • the type and/or label is set to a pre-agreed value, or after the pre-agreed identifier is set in the measurement response message frame, the frame count of the second node is included in the measurement response message frame for transmission.
  • the frame count is a count of receiving/transmitting frames of one or more combinations of ports, tunnels, and pseudowire layers that are pre-negotiated by the first node and the second node.
  • the method further includes:
  • the first node When the first node does not receive the measurement response message frame sent by the second node within a predetermined time, it is determined that all frames between the first node and the second node are lost.
  • a lost frame measurement system includes: a first node and a second node; wherein, the first node is configured to perform statistics on a frame count when a frame loss measurement is required, and send the first node Frame count and determination of the identifier that can be recognized by the second node And the frame is sent to the second node; and configured to: after receiving the measurement response message frame sent by the second node, determining a frame loss situation between the first node and the second node;
  • the second node is configured to collect a frame count when the frame loss measurement needs to be performed, and send a frame count including the second node and an identifier that can be recognized by the first node after receiving the measurement message frame Measurement response message frame;
  • the identifier that can be identified by the second node includes one or more of a destination address, a TTL, a type, and/or a label of the measurement message frame, and a pre-agreed identifier; the identifier can be identified by the first node.
  • the identifier includes the destination address, TTL, type, and
  • the first node is configured to set a destination address of the measurement message frame to a destination address of the second node, or set a TTL of the measurement message frame to be a distance from a second node, or
  • the type of the message frame and/or the tag is set to a pre-agreed value, or after the pre-agreed identifier is set in the measurement message frame, the frame count of the first node is included in the measurement message frame for transmission.
  • the second node is configured to set a destination address of the measurement response message frame to a destination address of the first node, or set a TTL of the measurement response message frame to a hop count from the first node, Or setting the type and/or label of the measurement response message frame to a pre-agreed value, or setting the frame count of the second node in the measurement response message frame after setting the pre-agreed identifier in the measurement response message frame Send it.
  • the frame count is a count of receiving/transmitting frames of one or more combinations of ports, tunnels, and pseudowire layers that are pre-negotiated by the first node and the second node.
  • the first node is further configured to: when the measurement response message frame sent by the second node is not received within a predetermined time, determine that all frames between the first node and the second node are lost.
  • the interaction between the message frame and the measurement response message frame is performed between the nodes, Not only can the frame loss between MEP nodes in the network be measured, but also the frame loss between MEP and MIP, MIP and MIP nodes can be determined. Even when the network does not support 0 AM, two can be determined. Frame loss between nodes. In this way, when a failure occurs in the network and the frame is lost, the frame loss count of one node to another node can be determined. When there is a frame loss between two adjacent nodes, it can also be measured, which is beneficial to the network failure. Positioning, maintenance and management. DRAWINGS
  • FIG. 1 is a schematic diagram of a method for determining a lost frame in an existing OAM network
  • FIG. 2 is a schematic flowchart of an implementation process of a lost frame measurement method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an implementation of a method for determining a lost frame according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an implementation of a method for determining a lost frame according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a lost frame measurement system according to an embodiment of the present invention.
  • the basic idea of the embodiment of the present invention is: the first node and the second node that need to perform the lost frame measurement respectively count the respective frame counts; the first node sends the frame count including the first node and can be recognized by the second node. Determining the message frame of the identifier to the second node; after receiving the measurement message frame, the second node sends a measurement response message frame including a frame count of the second node and an identifier that can be identified by the first node; After receiving the measurement response message frame, the first node determines a frame loss situation between the first node and the second node, where the identifier that can be identified by the second node includes the destination address of the measurement message frame.
  • FIG. 2 is a flowchart showing an implementation process of a method for determining a lost frame according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step 201 The first node and the second node that need to perform the lost frame measurement respectively count the respective frame counts;
  • the first node and/or the second node may be a MEP, a MIP, or a node that does not support the OAM function, where, when the first node or the second node is a MIP or a node that does not support the OAM function,
  • the first node or the second node counts the frame count as follows: According to the port receiving count, when the port receives a frame, the counter is incremented by one, and the value in the counter is the received frame count of the port; It can also be based on the frame count of a tunnel of a port. When a tunnel receives a frame, the counter is incremented by one. The value in the counter is the frame count based on a tunnel of the port.
  • the frame count may be a count of the receiving/transmitting frame of one or more combinations of the port, the tunnel, and the pseudowire layer of the node; as long as the frame count of the pre-negotiated layer of the first node and the second node can be satisfied .
  • Step 202 The first node sends a measurement message frame including a frame count of the first node and an identifier that can be identified by the second node to the second node.
  • the identifier that can be identified by the second node includes one or more of a destination address, a TTL, a type, and/or a label, and a pre-agreed identifier of the measurement message frame.
  • the first node may The identifier that can be identified by the second node is set by: setting the destination address of the measurement message frame to the destination address of the receiving node (ie, the second node), or determining the lifetime of the message frame (TTL, Time to Live) Set to the second node hop count, or set the type, label, etc. of the measurement message frame to a pre-agreed value, or set a pre-agreed identifier in the measurement message frame.
  • TTL Time to Live
  • Step 203 After receiving the measurement message frame, the second node sends the second node. a frame count and a measurement response message frame of the identifier that can be identified by the first node; wherein the identifier that can be identified by the first node includes a destination address, a TTL, a type, and/or a label of the measurement response message frame, Predefining one or more of the identifiers; here, the second node may set an identifier that can be recognized by the first node by: setting a destination address of the measurement response message frame as a receiving node (ie, the first node) The destination address of the response message frame is set to be the distance from the first node hop, or the type, label, etc. of the measurement response message frame is set to a pre-agreed value, or a pre-agreed identifier is set in the measurement response message frame. symbol.
  • Step 204 After receiving the measurement response message frame, the first node determines a frame loss situation between the first node and the second node.
  • the first node determines a frame loss situation between the first node and the second node according to the frame count in the transmitted measurement message frame and the frame count in the received measurement response message frame.
  • the foregoing method further includes: determining, between the first node and the second node, when the first node does not receive the measurement response message frame sent by the second node for a preset time. All frames are lost.
  • FIG. 3 is a schematic diagram of Embodiment 1 of a method for determining a lost frame according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an MPLS-TP network, where nodes S1 and S6 are MEPs, and other nodes S2 to S5 are MIPs;
  • the nodes S2 to S5 that need to be measured first need to count the respective receiving and transmitting frame counts. Since the existing MEP nodes perform the statistics of the receiving and sending frames, only the nodes S2 to S5 need to be additionally performed. Frame count statistics;
  • the node S 1 then sends a measurement message frame to each MIP, in order to enable each MIP node to recognize and respond to the measurement message frame sent by the MEP node, the MEP node is transmitting the measurement message frame.
  • Set the TTL to the hop count from the specified MIP.
  • the node receives the frame if the TTL of the frame is greater than 1, the packet is forwarded and the TTL is decremented by 1. If the TTL of the frame is equal to 1, the Further parse and stop forwarding the frame. For example, when the TTL is set to 1, the measurement message frame sent by the node S1 is received by the node S2 and the response response message frame is returned.
  • the TTL of the measurement message frame sent by the node S1 is reduced by 1 when it is forwarded by the node S2. Then, the node S3 receives and replies to the measurement response message frame; when the TTL is set to be greater than or equal to the hop count between the MEP and the MEP (in this embodiment, the hop count between the nodes S1 and S6 is 5), the MEP The measurement message frame sent by the node S1 is received by the opposite MEP node S6 and replies to the measurement response message frame. It should be understood that FIG.
  • the TTL in this embodiment is the hop count between the sending node and the receiving node, it may also be other values calculated by the hop count, such as the hop count plus 1, the hop count minus 1, a certain comparison The large value minus the hop count, etc., as long as the response node and the sending node agree in advance.
  • the measurement message frame sent by the node S1 carries the frame count information of the node S1, and also carries the frame count information of the reply node in the measurement response message frame replied by each node, and the node S1 calculates its own and based on the information.
  • the node S1 can determine that there is no frame loss between the nodes S1 and S3, and the node S1 to the node S4 have dropped frames, so that the nodes S3 to S4 can be determined.
  • the frame loss occurs. Therefore, the specific frame loss location is located between nodes S3 and S4. It may be that the node S3 or S4 has dropped frames, or the link between nodes S3 and S4 may be dropped.
  • the frame count information included in the measurement message frame and the measurement response message frame may be a count of the receiving/transmitting frame at the port, the tunnel, or the pseudowire layer, or multiple combinations of the foregoing counting, as long as the response node and the sending node Pre-negotiate can be.
  • FIG. 4 is a schematic diagram showing an implementation of Embodiment 2 of a method for determining a lost frame according to an embodiment of the present invention, such as
  • the measurement message frame sent by the node SI to the node S3 carries the number of transmission and reception frames of a tunnel under its own port 1; and the measurement response message frame replied by the node S3 carries both the received message from the node S1.
  • the frame count calculates the frame loss value of the port 3 of the node S1 to the port 3 of the node S3 in the tunnel.
  • the measurement message frame sent by the node S3 to the node S5 carries the transmission and reception frame count of a tunnel under its own port 2 and 3
  • the measurement response message frame replied by the node S5 carries both the received message from the node S3. Determining the tunnel receiving frame counts copied in the message frame, and carrying the same frame transmission and reception frame counts of the own ports 4 and 5, and after receiving the measurement response message frame, the node S3 counts the frames according to the measurement response message frame.
  • the local frame count calculate the frame loss value of the port 2, 3 of the node S3 to the port 4, 5 of the node S5 in the tunnel, if there is no frame loss between the port 2 of the node S3 and the port 4 of the node S5 If there is a frame loss between port 3 of node S3 and port 5 of node S5, it can be determined that there is a frame loss between port 4 and port 5 of node S5.
  • the node sends the measurement message frame, if the measurement response message frame of the opposite end is not received within a predetermined time, for example, 5 seconds, it is determined that the frame loss count between the node and the opposite end is all frames.
  • FIG. 5 shows an implementation of Embodiment 3 of the method for determining a lost frame according to an embodiment of the present invention
  • FIG. 5 shows an Ethernet or IP network, which uses the above method in the embodiment of the present invention, and the node to be measured (node S1 ⁇ ) S6)
  • the node S1 sends the measurement message frame to the other nodes, where the nodes S1 and S3 send the identifiers that can be recognized by the other party by setting the preset specific identifiers, and send them to the node at the node S1.
  • the measurement message frame of S3 includes a specific identifier that can be identified by the node S3, and the measurement response message frame that the node S3 replies to the node S1 includes a specific identifier that can be identified by the node S1, and the identifier can be specifically Destination address, frame type, agreed value of a specific field, or a combination of the above, etc.
  • the frame and the measurement response message frame also include the frame count information of the node, which may be a port, a virtual local area network (VLAN), or an IP layer receiving/transmitting frame count, or multiple combinations of the foregoing counting. As long as the response node and the sending node agree with each other in advance.
  • VLAN virtual local area network
  • the node S1 In order to determine the frame loss of the VLAN 100 in the Ethernet network, the node S1 sends a measurement message frame, and a specific location in the measurement message frame (for example, at the first address plus 100 bytes) contains a specific identifier that the node S3 can recognize. , if it can be 0x03030303, and includes the transmit and receive frame count of VLAN 100 of its own port 1;
  • the node S3 detects the corresponding specific location (ie, the first address plus 100 bytes), and when the content of the location is a pre-agreed specific identifier (ie, 0x03030303), the forwarding is not performed, but the response response message frame is returned, and
  • the specific identifier written in the node S1 at a specific position in the measurement response message frame may be 0x01010101, and the measurement response message frame further includes its own port 2, 3
  • the node S1 detects the corresponding specific location, that is, whether the first address plus 120 bytes is a pre-agreed specific identifier (ie, 0x01010101), and if so, Instead of forwarding, the number of dropped frames from node S1 port 1 to node S3 ports 2 and 3 is calculated based on the received frame count and its own frame count.
  • the node S1 calculates the frame loss count of its own port 1 to the node S4 port 4, 5 respectively. If there is a frame loss between the nodes S3 and S4, the node S1 can determine that there is no frame loss between the port 1 and the node S3, and there is a frame loss between the node S4 and the port 4, so that the frame loss position can be determined as a node. Between S3 and S4.
  • the node S1 does not receive the measurement response message frame of the node S4 within a preset period of time (for example, 5 seconds), and at this time, the node S1 to the node S4 are determined. All frames are lost.
  • FIG. 6 is a diagram showing the structure of a lost frame measurement system according to an embodiment of the present invention, as shown in FIG.
  • the system includes: a first node and a second node; wherein
  • the first node is configured to perform statistics on a frame count when a frame loss measurement is required, and send a measurement message frame including a frame count of the first node and an identifier that can be identified by the second node to the second node; After receiving the measurement response message frame sent by the second node, determining a frame loss situation between the first node and the second node;
  • the second node is configured to collect a frame count when the frame loss measurement needs to be performed, and send a frame count including the second node and an identifier that can be recognized by the first node after receiving the measurement message frame The measurement response message frame.
  • the first node is configured to set a destination address of the measurement message frame to a destination address of the second node, or set a TTL of the measurement message frame to be a distance from a second node, or
  • the type of the message frame and/or the tag is set to a pre-agreed value, or after the pre-agreed identifier is set in the measurement message frame, the frame count of the first node is included in the measurement message frame for transmission.
  • the second node is configured to set a destination address of the measurement response message frame to a destination address of the first node, or set a TTL of the measurement response message frame to a hop count from the first node, Or setting the type and/or label of the measurement response message frame to a pre-agreed value, or setting the frame count of the second node in the measurement response message frame after setting the pre-agreed identifier in the measurement response message frame Send it.
  • the frame count is a count of receiving/transmitting frames of one or more combinations of ports, tunnels, and pseudowire layers that are pre-negotiated by the first node and the second node.
  • the first node is further configured to: when the measurement response message frame sent by the second node is not received within a predetermined time, determine that all frames between the first node and the second node are lost.
  • the MIP to the MIP node can be determined.
  • Frame loss even when the network does not support 0 AM, it can also determine the frame loss between two nodes.
  • a frame loss count of a node to another node may be determined, and when there is a frame loss between two adjacent nodes, the frame may be detected. This facilitates the fault location, maintenance and management of the network.

Landscapes

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

Abstract

La présente invention se rapporte à un procédé et à un système adaptés pour détecter une perte de trames. Le procédé selon l'invention comprend les étapes suivantes : un premier nœud et un second nœud qui ont besoin de détecter une perte de trames, comptent le nombre de trames de l'autre, respectivement ; le premier nœud envoie au second nœud une trame de message de détection, qui contient le nombre de trames du premier nœud ainsi qu'un identifiant qui peut être identifié par le second nœud ; après avoir reçu la trame de message de détection, le second nœud envoie une trame de message de réponse de détection, qui contient le nombre de trames du second nœud ainsi qu'un identifiant qui peut être identifié par le premier nœud ; enfin, après avoir reçu la trame de message de réponse de détection, le premier nœud détermine une situation de perte de trames entre le premier nœud et le second nœud. En exécutant l'interaction d'une trame de message de détection et d'une trame de message de réponse de détection entre des nœuds, quand une anomalie se produit dans un réseau, ladite anomalie entraînant une perte de trames, la présente invention peut détecter un nombre de trames perdues entre un nœud et d'autres nœuds respectivement. D'autre part, quand une perte de trames se produit entre deux nœuds adjacents, la présente invention peut également la détecter. Cela facilite la localisation de l'anomalie, et cela simplifie également l'entretien et la gestion d'un réseau.
PCT/CN2013/077818 2012-07-09 2013-06-24 Procédé et système pour la détection de perte de trames Ceased WO2014008809A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210235076.3A CN103546303A (zh) 2012-07-09 2012-07-09 一种丢失帧测定方法及系统
CN201210235076.3 2012-07-09

Publications (1)

Publication Number Publication Date
WO2014008809A1 true WO2014008809A1 (fr) 2014-01-16

Family

ID=49915387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/077818 Ceased WO2014008809A1 (fr) 2012-07-09 2013-06-24 Procédé et système pour la détection de perte de trames

Country Status (2)

Country Link
CN (1) CN103546303A (fr)
WO (1) WO2014008809A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106274531A (zh) * 2016-08-26 2017-01-04 北京长城华冠汽车科技股份有限公司 故障处理方法及装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106411625A (zh) * 2015-07-27 2017-02-15 中兴通讯股份有限公司 链路报文丢包测量方法、系统及目标节点、发起端节点
CN109995603B (zh) * 2017-12-29 2020-12-15 中国移动通信集团山东有限公司 一种Tag模型下丢包测量的方法、装置及电子设备
WO2021100146A1 (fr) * 2019-11-20 2021-05-27 三菱電機株式会社 Dispositif de communication optique et système de communication
CN115297526B (zh) * 2022-07-01 2025-09-16 浙江艾克斯精灵人工智能科技有限公司 消息发送方法、设备智能互联系统、相关设备及存储介质
CN119155515B (zh) * 2024-11-20 2025-04-08 浙江大华技术股份有限公司 视联网中的网络丢帧诊断方法、装置及计算机设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1992651A (zh) * 2005-12-29 2007-07-04 华为技术有限公司 检测以太网多播性能的实现方法
CN101667941A (zh) * 2009-09-27 2010-03-10 中兴通讯股份有限公司 链路性能的检测方法及装置
CN102215144A (zh) * 2011-05-17 2011-10-12 中兴通讯股份有限公司 丢包率的测量方法和系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101800679B (zh) * 2010-03-10 2012-07-11 华为技术有限公司 一种报文丢包检测方法及系统
CN102315980B (zh) * 2010-07-05 2015-09-16 中兴通讯股份有限公司 一种丢包率测量中启动计数器的方法及系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1992651A (zh) * 2005-12-29 2007-07-04 华为技术有限公司 检测以太网多播性能的实现方法
CN101667941A (zh) * 2009-09-27 2010-03-10 中兴通讯股份有限公司 链路性能的检测方法及装置
CN102215144A (zh) * 2011-05-17 2011-10-12 中兴通讯股份有限公司 丢包率的测量方法和系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106274531A (zh) * 2016-08-26 2017-01-04 北京长城华冠汽车科技股份有限公司 故障处理方法及装置

Also Published As

Publication number Publication date
CN103546303A (zh) 2014-01-29

Similar Documents

Publication Publication Date Title
US9075717B2 (en) Connectivity fault notification
US7924725B2 (en) Ethernet OAM performance management
US8908537B2 (en) Redundant network connections
US20050099955A1 (en) Ethernet OAM fault isolation
US20050099949A1 (en) Ethernet OAM domains and ethernet OAM frame format
US20050099951A1 (en) Ethernet OAM fault detection and verification
US20050099954A1 (en) Ethernet OAM network topography discovery
CN102594600B (zh) 一种确定双向转发检测会话故障位置的方法及系统
US20120087232A1 (en) Link state relay for physical layer emulation
US9774494B2 (en) Method, node, and system for detecting performance of layer 3 virtual private network
JP5506801B2 (ja) 転送ネットワークの障害検出
CN105281931B (zh) Potn的误码检测方法、装置及系统
US20070064611A1 (en) Method for monitoring packet loss ratio
CN101447900A (zh) 一种建立双向转发检测的方法、系统及设备
US20120063325A1 (en) Failure localisation in a mpls-tp network
CN104067575A (zh) 重新路由技术
Mizrahi et al. An overview of operations, administration, and maintenance (OAM) tools
WO2016177120A1 (fr) Procédé et système de mesure de perte de paquet de paquet de liaison, nœud cible et nœud d'extrémité émettrice
CN101771577A (zh) 一种为双向lsp建立双向转发检测的方法、系统及设备
CN102195832A (zh) 一种环回测试方法、装置及系统
WO2014008809A1 (fr) Procédé et système pour la détection de perte de trames
WO2015149353A1 (fr) Procédé de traitement de paquets oam, dispositif de réseau, et système de réseau
KR20140117993A (ko) 링크 장애 추적을 위한 mpls-tp 네트워크 및 방법
CN110166311B (zh) 测量网络性能的方法、设备和网络系统
CN104852809A (zh) 信号劣化故障的处理方法及系统

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: 13816320

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13816320

Country of ref document: EP

Kind code of ref document: A1