WO2017031858A1 - Procédé et appareil de détection d'informations d'état de retard temporel, et architecture de réseau - Google Patents

Procédé et appareil de détection d'informations d'état de retard temporel, et architecture de réseau Download PDF

Info

Publication number
WO2017031858A1
WO2017031858A1 PCT/CN2015/096231 CN2015096231W WO2017031858A1 WO 2017031858 A1 WO2017031858 A1 WO 2017031858A1 CN 2015096231 W CN2015096231 W CN 2015096231W WO 2017031858 A1 WO2017031858 A1 WO 2017031858A1
Authority
WO
WIPO (PCT)
Prior art keywords
probe
flow
information
timestamp
link
Prior art date
Application number
PCT/CN2015/096231
Other languages
English (en)
Chinese (zh)
Inventor
刘琛
宋磊
田天笑
姚成才
Original Assignee
北京百度网讯科技有限公司
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 北京百度网讯科技有限公司 filed Critical 北京百度网讯科技有限公司
Publication of WO2017031858A1 publication Critical patent/WO2017031858A1/fr

Links

Images

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

Definitions

  • the present invention relates to the field of computer technology, and in particular, to the technical field of detecting delay state information, and in particular, to a method and device for detecting delay state information, and a network architecture.
  • Network quality is one of the most important indicators for Internet companies and operators to measure their own service quality. At present, most network quality monitoring focuses on whether the link is interrupted, and network quality problems caused by line degradation and traffic congestion become monitoring. Blind zone. In addition, in order to make full use of bandwidth, operators and large Internet companies usually adopt a multi-level load balancing network architecture. However, while benefiting from load balancing, it also increases the difficulty of network link quality monitoring covering the entire link, such as services. Traffic is hit on the problem link, but traffic that is monitored or troubled is on the normal link, making troubleshooting difficult.
  • network devices of various vendors mainly implement load balancing by using a hash algorithm, and specifically, detecting a flow by continuously transforming hash parameters to detect all links.
  • the link information corresponding to the hash parameter is recorded, and the probe stream is re-simulated according to the hash parameter, and the corresponding link information is reproduced, and the delay of the link is obtained by subtracting the time stamps of the servers at both ends.
  • the probe data packets consisting of the random transform hash parameters will gradually converge on some links, resulting in the same result returned by a large number of probes, and ultimately cannot be completely covered.
  • Link when the link changes (for example, bandwidth expansion, link migration), the relationship between the hash parameter and the link is no longer matched, and the relationship between the hash parameter and the link needs to be recalculated.
  • the prior art is based on three layers of hash If the multiple links share an IP address (such as the link bundling technology), each link cannot be detected at this time, and the link in the delay state cannot be detected quickly and accurately.
  • the purpose of the present application is to provide a method and device for detecting delay state information and a network architecture, so as to solve the problem that the link in the delay state cannot be detected quickly and accurately in the prior art.
  • the present application provides a method for detecting delay state information, where the method includes: pre-storing a data table on a source node, where the data table includes a corresponding relationship between planned probe flow information and link information. Generating a flow table on the controller according to the data table, the flow table includes matching probe flow information and action information for processing the probe flow, the action information being forwarded from an interface of the network device; The action information of the probe flow in the flow table, instructing the intermediate node to forward the probe flow that is sent by the source node and carries the first timestamp to the destination node, and determine a second timestamp; A timestamp, and the second timestamp, determining delay state information of link information corresponding to the probe stream.
  • the method further includes: adding the delay state information to the probe flow in the data table The correspondence between the information and the link information; wherein the data table includes a plurality of entries, each entry records the probe flow information, link information corresponding to the probe flow, and correspondence of the delay state information relationship.
  • the link information includes a plurality of link segments, each link segment being a link between two intermediate nodes; the link information is used to instruct the intermediate node to forward the The path of the probe stream.
  • the method further includes: receiving delay state information of the plurality of link information corresponding to the plurality of probe flows, wherein the plurality of link information are both the source node and the destination node Link information between the multiple links according to the plurality of probe streams
  • the delay state information of the road information determines a delay link segment between the source node and the destination node.
  • the determining the delayed link segment between the source node and the destination node includes: setting a delay threshold; and excluding the chain in which the delay state information is smaller than the delay threshold. Road information; counting a plurality of link segments in the remaining link information to determine the delay link segment.
  • the probe stream information is a quad.
  • the quad group includes: a network protocol IP address of the source node, an IP address of the destination node, the source node port, and the destination. Node port.
  • the method further includes: receiving a probe stream carrying the first timestamp; determining a second timestamp, the second timestamp being a current time when receiving the probe stream carrying the first timestamp Calculating the delay state information of the link information corresponding to the probe flow according to the first timestamp and the second timestamp; determining the delay state information of the link information corresponding to the multiple probe flows, Delay link segment.
  • the method further includes: pre-storing a data table, where the data table includes a correspondence between the probe stream information and the link information; adding the first timestamp to the probe stream, and transmitting the first The timestamp is probed to the switch, and the data table is sent to the controller, so that the controller generates a flow table according to the data table.
  • the method further includes: receiving, by the controller, a flow table, where the flow table includes matching probe flow information and action information of the switch processing the probe flow, and the switch performs processing according to the flow table.
  • the action information of the probe stream forwards the probe stream.
  • the switch receives the number of flow tables sent by the controller that is greater than the number of ports of the switch.
  • the present application provides a device for detecting delay state information, the device comprising: a storage unit, configured to store a data table on a source node in advance, where the data table includes planned probe flow information and a chain Corresponding relationship of the road information; a generating unit, configured to generate a flow table on the controller according to the data table, where the flow table includes matching probe stream information and action information for processing the probe stream, and the action information is a slave network And forwarding, by the forwarding unit, the forwarding unit, configured to: according to the action information of the processing flow in the flow table, instructing the intermediate node to forward the detection flow that is sent by the source node and carries the first timestamp Determining, by the destination node, a second timestamp; determining unit, configured to determine delay state information of the link information corresponding to the probe flow according to the first timestamp and the second timestamp.
  • the application provides a network architecture, where the network architecture includes: a source server, configured to pre-store a data table, where the data table includes a corresponding relationship between the probe flow information and the link information; a stamp is added to the probe stream, and the probe stream carrying the first timestamp is sent, and the data table is sent, the first timestamp is a current time when the probe stream is sent, and a controller is configured to receive the The data table sent by the source server, the flow table is generated according to the data table, and the switch is configured to receive the probe flow sent by the source server, and receive the flow table delivered by the controller, where the flow The table includes the matching probe flow information and the action information of the switch processing the probe flow, and the action flow of the probe flow is processed according to the action information in the flow table, and the probe flow carrying the first timestamp is forwarded; a server, configured to determine a second timestamp when the probe stream carrying the first timestamp is received, and calculate the probe according to the first timestamp and the second times
  • the destination server specifically includes: a receiving unit, configured to receive a probe flow carrying a first timestamp; a determining unit, configured to determine a second timestamp, where the second timestamp is the received The current time when the flow is detected by the first timestamp; the calculation unit is configured to calculate delay state information of the link information corresponding to the probe flow according to the first timestamp and the second timestamp; And a unit, configured to determine a delay link segment according to the delay state information of the link information corresponding to the multiple probe flows.
  • the present application discloses the following technical effects:
  • the delay state information between any two nodes in the network architecture can be detected, and the link segment in the delay state is quickly and accurately detected, and the detection efficiency of the delay state information is improved.
  • FIG. 1 is a schematic diagram of a network architecture according to the present application.
  • FIG. 2 is a flowchart of a method for detecting delay state information according to Embodiment 1 of the present application
  • 3 is a schematic diagram of detection of delay state information according to the present application.
  • FIG. 5 is a flowchart of a method for detecting delay state information according to Embodiment 3 of the present application.
  • Figure 6 is a schematic diagram of a detecting apparatus for delay state information according to the present application.
  • the embodiment of the present application provides a method and device for detecting delay state information, and a network architecture, which can provide data support for network server measurement load balancing.
  • the network architecture 100 in the embodiment of the present application includes: a source server 101, a controller 102, a switch 103, and a destination server 104, and forwards the probe stream sent by the source server to the destination server through the switch. Determining whether the time when the probe stream reaches the destination server from the source server is delayed, and finding the delay link segment according to the delay state of the multiple link information between the source server and the destination server.
  • FIG. 2 is a flowchart of a method for detecting delay state information according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of detecting delay state information according to an embodiment of the present application.
  • the execution body of the embodiment may be a network architecture. Referring to FIG. 2 and FIG. 3, the detection of the delay state information specifically includes the following steps:
  • Step 201 Store a data table on the source node in advance, where the data table includes a correspondence between the planned probe flow information and the link information.
  • the probe stream information is a quad group, and the quad group includes: a network protocol IP address of the source node, an IP address of the destination node, the source node port, and the destination node port.
  • the quaternion represents a unique probe stream, ensuring that the number of links between the source servers can be detected with enough different probe streams.
  • the link information includes a plurality of link segments, each link segment being a link between two intermediate nodes; the link information is used to indicate that the intermediate node forwards the path of the probe flow.
  • S represents the protocol (English: Internet Protocol, IP for short) address of the network between the source servers; M represents the IP address of the destination server; a, b, c, d, e, and f respectively represent the path corresponding The interface IP address of the switch; the link information abc indicates the interface from the interface whose IP address of switch A is a to the interface whose IP address of switch B is b, and then the IP address of switch C is c.
  • IP Internet Protocol
  • the data table includes at least the corresponding relationship between the planned probe stream information (t1) and the link information (abc).
  • the entry 1 in Table 1 indicates that the link information of the probe stream t1 from the source server S to the destination server M is abc, that is, the S sends the probe stream t1 to the port a of the switch A, and forwards the probe stream t1 to the switch B.
  • switch B forwards probe stream t1 to port c of switch C
  • switch C forwards t1 to M.
  • Step 202 Generate a flow table on the controller according to the data table, where the flow table includes matched probe flow information and action information for processing the probe flow, where the action information is forwarded from an interface of the network device;
  • the network device may be a switch, and the action information is used to indicate After the switch receives the probe stream, it should process it.
  • the action information is divided into mandatory actions and optional actions.
  • the mandatory action needs to be supported by the switch by default, and the optional action needs to be notified by the switch.
  • the controller generates a flow table and sends the flow table to switch A.
  • the probe flow t1 is forwarded from port a1 of switch A to port b of switch B.
  • the number of flow tables sent by the controller to the switch is greater than the number of ports on the switch to cover all link information.
  • Step 203 The action information of the probe flow is processed according to the process in the flow table, and the intermediate node is instructed to forward the probe flow that is sent by the source node and carries the first timestamp to the destination node, and determine the second time. stamp;
  • the source node adds a first timestamp to the probe stream, and the first timestamp is the current time when the probe stream is sent.
  • the second timestamp is the current time when the probe stream carrying the first timestamp is received.
  • the current time of the system where the network architecture is located may be captured when forwarding to the destination node, as the second time. stamp.
  • the probe stream is sent from the source node, the current time of the system where the network architecture is located is captured, and as the first timestamp, the first timestamp is added to the probe stream for transmission.
  • Step 204 Determine delay state information of link information corresponding to the probe flow according to the first timestamp and the second timestamp.
  • the first timestamp carried by the probe stream t1 is 8:30, 1 millisecond, and the second timestamp is 8:32. 2 milliseconds, and the delay state of the link information corresponding to the probe stream t1 is determined.
  • the information is 1 millisecond.
  • the data table includes a plurality of entries, each of which records a correspondence relationship between the probe flow information, link information corresponding to the probe flow, and the delay state information. See Table 2, Table 2 is the data table after adding the delay status information.
  • the delay link segment is determined according to the delay state information of the link information corresponding to the multiple probe flows.
  • receiving the delay state information of the multiple link information corresponding to the multiple probe flows where the multiple link information is link information between the source node and the destination node; Determining delay state information of the plurality of link information corresponding to the plurality of probe streams, and determining a delay link segment between the source node and the destination node.
  • the link is bf.
  • the determining the delay link segment between the source node and the destination node may be: setting a delay threshold; and excluding the link information that the delay state information is smaller than the delay threshold; A plurality of link segments in the remaining link information are counted to determine the delayed link segment.
  • the embodiment of the present application can detect the delay state information between any two nodes in the network architecture, quickly and accurately detect the link segment in the delay state, and improve the detection efficiency of the delay state information.
  • FIG. 4 is a flowchart of a method for detecting delay state information according to an embodiment of the present application.
  • the execution body of this embodiment may be a destination server, and the method may include the following steps:
  • Step 401 Receive a probe flow carrying a first timestamp.
  • Step 402 Determine a second timestamp, where the second timestamp is a current time when the probe stream carrying the first timestamp is received.
  • Step 403 Calculate delay state information of link information corresponding to the probe flow according to the first timestamp and the second timestamp.
  • Step 404 Determine a delay link segment according to the delay state information of the link information corresponding to the multiple probe flows.
  • FIG. 5 is a flowchart of a method for detecting delay state information according to an embodiment of the present disclosure, where the method may include the following steps:
  • Step 501 Pre-stored a data table, where the data table includes a corresponding relationship between the probe flow information and the link information.
  • Step 502 Add a first timestamp to the probe flow, and send the probe flow carrying the first timestamp to the switch, and send the data table to the controller, so that the controller generates a flow table according to the data table.
  • This embodiment describes the method for detecting the delay state information from the perspective of the switch.
  • the method may include:
  • the controller And receiving, by the controller, a flow table, where the flow table includes matching probe flow information and action information of the switch processing the probe flow, and the switch forwards the probe flow according to the action information in the flow table that processes the probe flow.
  • the embodiment of the present application further provides a device for detecting delay state information, which is mainly from the perspective of network architecture, and is shown in FIG.
  • a schematic diagram of a device for detecting delay state information the device specifically includes: a storage unit 601, a generating unit 602, a forwarding unit 603, and a determining unit 604.
  • the storage unit 601 is configured to store, in advance, a data table on the source node, where the data table includes a corresponding relationship between the planned probe flow information and the link information;
  • the generating unit 602 is configured to generate, according to the data table, a flow table on the controller, where the flow table includes matched probe flow information and action information for processing the probe flow, where the action information is an interface of the slave network device. Forward
  • the forwarding unit 603 is configured to: according to the action information of processing the probe flow in the flow table, instruct the intermediate node to forward the probe flow that is sent by the source node and that carries the first timestamp to the destination node, and determine Second timestamp;
  • the determining unit 604 is configured to determine delay state information of the link information corresponding to the probe flow according to the first timestamp and the second timestamp.
  • the embodiment of the present application further provides a network architecture.
  • the network architecture may specifically include: the source server 101.
  • the source server 101 is configured to pre-store a data table, where the data table includes a corresponding relationship between the probe stream information and the link information, add the first timestamp to the probe stream, and send the probe stream carrying the first timestamp. And sending the data table, where the first timestamp is a current time when the probe stream is sent;
  • the controller 102 is configured to receive the data table sent by the source server, and generate a flow table according to the data table;
  • the switch 103 is configured to receive the probe flow sent by the source server, and receive the flow table that is sent by the controller, where the flow table includes matching probe flow information and action information of the switch processing the probe flow. And processing, according to the action information of the probe flow in the flow table, forwarding the probe flow carrying the first timestamp;
  • the destination server 104 is configured to determine the second timestamp when the probe stream carrying the first timestamp is received, and calculate the probe stream corresponding to the first timestamp and the second timestamp. Delay state information of the link information.
  • the destination server specifically includes:
  • a receiving unit configured to receive a probe flow carrying a first timestamp
  • a determining unit configured to determine a second timestamp, where the second timestamp is a current time when receiving the probe stream carrying the first timestamp
  • a calculating unit configured to calculate delay state information of the link information corresponding to the probe flow according to the first timestamp and the second timestamp;
  • the processing unit is configured to determine the delay link segment according to the delay state information of the link information corresponding to the multiple probe flows.
  • the modules involved in the embodiments of the present application may be implemented by software or by hardware.
  • the described modules may also be provided in the processor, for example, as a processor comprising a receiving module, a determining module and a control module.
  • the names of these modules do not constitute a limitation on the module itself under certain circumstances.
  • the receiving module may also be described as "a module configured to receive a connection establishment request from a surrounding device.”
  • the present application further provides a computer readable storage medium, which may be a computer readable storage medium included in the apparatus described in the foregoing embodiment, or may exist separately, not A computer readable storage medium that is assembled into a terminal.
  • the computer readable storage medium stores one or more programs that are used by one or more processors to perform the method of operation of the microprojection device described herein.

Abstract

L'invention concerne un procédé de détection d'informations d'état de retard temporel. Le procédé comporte les étapes consistant à: stocker à l'avance une table de données sur un nœud d'origine, la table de données contenant une corrélation entre des informations de liaison et des informations de flux de détection planifiées; générer une table de flux sur un contrôleur d'après la table de données, la table de flux contenant des informations d'action et des informations de flux de détection assorties servant à traiter le flux de détection, et les informations d'action étant transmises à partir d'une certaine interface d'un dispositif de réseau; d'après les informations d'action servant à traiter le flux de détection dans la table de flux, donner pour consigne à un nœud intermédiaire de transmettre le flux de détection portant un premier horodatage et envoyé par le nœud d'origine à un nœud de destination, et déterminer un deuxième horodatage; et d'après le premier horodatage et le deuxième horodatage, déterminer des informations d'état de retard temporel concernant les informations de liaison correspondant au flux de détection. Au moyen des modes de réalisation de la présente invention, des informations d'état de retard temporel entre deux nœuds quelconques d'une architecture de réseau peuvent être détectées, et un segment de liaison en état de retard temporel est détecté rapidement et précisément, améliorant ainsi le rendement de détection des informations d'état de retard temporel.
PCT/CN2015/096231 2015-08-27 2015-12-03 Procédé et appareil de détection d'informations d'état de retard temporel, et architecture de réseau WO2017031858A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510537128.6A CN105049299B (zh) 2015-08-27 2015-08-27 时延状态信息的检测方法及装置、网络架构
CN201510537128.6 2015-08-27

Publications (1)

Publication Number Publication Date
WO2017031858A1 true WO2017031858A1 (fr) 2017-03-02

Family

ID=54455520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/096231 WO2017031858A1 (fr) 2015-08-27 2015-12-03 Procédé et appareil de détection d'informations d'état de retard temporel, et architecture de réseau

Country Status (2)

Country Link
CN (1) CN105049299B (fr)
WO (1) WO2017031858A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109959903A (zh) * 2019-03-07 2019-07-02 南京莱斯信息技术股份有限公司 一种在线检测雷达数据传输时延装置及检测方法
CN113411375A (zh) * 2021-05-08 2021-09-17 长沙智能驾驶研究院有限公司 信息处理方法、设备及计算机存储介质

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105049299B (zh) * 2015-08-27 2018-11-13 北京百度网讯科技有限公司 时延状态信息的检测方法及装置、网络架构
CN105791113B (zh) * 2016-02-25 2019-11-29 上海斐讯数据通信技术有限公司 一种基于sdn的多链路时延均衡方法和系统
CN106027189B (zh) * 2016-05-13 2018-08-31 自连电子科技（上海）有限公司 一种实现提供物联网设备消息时间戳的方法及系统
CN107508719B (zh) * 2017-02-15 2020-04-14 北京中航通用科技有限公司 测量网络时延的方法、装置及网络节点
CN108509455B (zh) * 2017-02-28 2021-12-24 百度在线网络技术（北京）有限公司 数据表处理方法和装置
CN109428785A (zh) * 2017-09-01 2019-03-05 阿里巴巴集团控股有限公司 一种故障检测方法和装置
CN110198332B (zh) * 2018-04-13 2021-11-16 腾讯科技（深圳）有限公司 内容分发网络节点的调度方法、装置及存储介质
CN108833207B (zh) * 2018-06-19 2021-02-02 中国联合网络通信集团有限公司 时延测量方法及系统
CN112311619B (zh) * 2019-08-14 2022-04-05 北京字节跳动网络技术有限公司 网络报文延迟检测方法、装置和电子设备
CN110601888B (zh) * 2019-09-10 2020-11-06 清华大学 一种时间敏感网络中确定性故障检测与定位方法及系统
CN110708597B (zh) * 2019-10-12 2022-01-18 腾讯科技（深圳）有限公司 直播延迟监控方法、装置、电子设备及可读存储介质
CN110968479B (zh) * 2019-11-20 2023-05-23 北京宝兰德软件股份有限公司 一种针对应用程序的业务级全链路监控方法及服务器
CN113162829B (zh) * 2021-05-19 2023-03-28 北京安信智通科技有限公司 传输时延的确定方法、装置以及存储介质
CN114374625A (zh) * 2021-12-24 2022-04-19 董亮 时间敏感网络测试方法、装置、电子设备及存储介质
CN115865683B (zh) * 2023-03-02 2023-05-23 山东创安交通预警工程有限公司 智慧社区设备管理系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563875A (en) * 1995-07-10 1996-10-08 International Business Machines Corporation Wrap-around route testing in packet communications networks
US20070091937A1 (en) * 2005-10-21 2007-04-26 Tian Bu System and method for estimating network tomography
CN101325470A (zh) * 2008-07-28 2008-12-17 北京邮电大学 自感知光网络中一种端到端数据传输时延测量方法
CN102394796A (zh) * 2011-11-04 2012-03-28 华为技术有限公司 链路时延检测方法、源端、宿端及系统
US20120307629A1 (en) * 2011-06-01 2012-12-06 Cisco Technology, Inc. Source routing convergence in constrained computer networks
CN104506591A (zh) * 2014-12-11 2015-04-08 罗向阳 一种基于最近共同路由器的目标ip地理位置定位方法
CN105049299A (zh) * 2015-08-27 2015-11-11 北京百度网讯科技有限公司 时延状态信息的检测方法及装置、网络架构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101404597B (zh) * 2008-11-19 2013-06-05 华为技术有限公司 一种网络质量指标的获取方法、系统及装置
CN102368736B (zh) * 2011-11-10 2014-12-10 华为技术有限公司 一种报文发送方法和设备
CN103401726B (zh) * 2013-07-19 2016-12-07 华为技术有限公司 网络路径探测方法及装置、系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5563875A (en) * 1995-07-10 1996-10-08 International Business Machines Corporation Wrap-around route testing in packet communications networks
US20070091937A1 (en) * 2005-10-21 2007-04-26 Tian Bu System and method for estimating network tomography
CN101325470A (zh) * 2008-07-28 2008-12-17 北京邮电大学 自感知光网络中一种端到端数据传输时延测量方法
US20120307629A1 (en) * 2011-06-01 2012-12-06 Cisco Technology, Inc. Source routing convergence in constrained computer networks
CN102394796A (zh) * 2011-11-04 2012-03-28 华为技术有限公司 链路时延检测方法、源端、宿端及系统
CN104506591A (zh) * 2014-12-11 2015-04-08 罗向阳 一种基于最近共同路由器的目标ip地理位置定位方法
CN105049299A (zh) * 2015-08-27 2015-11-11 北京百度网讯科技有限公司 时延状态信息的检测方法及装置、网络架构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109959903A (zh) * 2019-03-07 2019-07-02 南京莱斯信息技术股份有限公司 一种在线检测雷达数据传输时延装置及检测方法
CN113411375A (zh) * 2021-05-08 2021-09-17 长沙智能驾驶研究院有限公司 信息处理方法、设备及计算机存储介质

Also Published As

Publication number Publication date
CN105049299B (zh) 2018-11-13
CN105049299A (zh) 2015-11-11

Similar Documents

Publication Publication Date Title
WO2017031858A1 (fr) Procédé et appareil de détection d'informations d'état de retard temporel, et architecture de réseau
US7961637B2 (en) Method and apparatus for monitoring latency, jitter, packet throughput and packet loss ratio between two points on a network
US9917745B2 (en) Validation of chained network services
TWI528755B (zh) 軟體定義網路中用於延遲量測之網路控制器、延遲量測系統及延遲量測方法
US8477772B2 (en) System and method for determination of routing information in a network
CN110971698B (zh) 一种数据转发系统、方法及装置
US7924730B1 (en) Method and apparatus for operations, administration and maintenance of a network messaging layer
WO2016045098A1 (fr) Commutateur,dispositif de commande, système et procédé de détection de qualité de liaison
WO2018049649A1 (fr) Procédé et dispositif de mesure de performance de réseau
US8427970B2 (en) Apparatus and method for determining a service interruption time measurement
WO2021018309A1 (fr) Procédé, dispositif et système de détermination d'un chemin de transmission de message et support de stockage informatique
JP2007259069A (ja) スイッチ装置
US9503343B2 (en) Method and system for detecting network topology change
JPWO2009040903A1 (ja) ネットワーク監視システム、経路抽出方法、プログラム、及びプログラムを記録したコンピュータ読み取り可能な記録媒体
US20160028589A1 (en) Data loop detection
WO2019205247A1 (fr) Procédé de détection de qualité de service de grappe anycast bgp et appareil de détection
WO2016091156A1 (fr) Procédé et dispositif de détermination de défaillance de nœud
JP5494110B2 (ja) ネットワークの通信経路推定方法、通信経路推定プログラム及び監視装置
WO2016082509A1 (fr) Procédé et appareil permettant de détecter une connectivité d'un trajet commuté par étiquette
CN114650253A (zh) 基于会话状态的网络策略应用
JP5182293B2 (ja) 呼処理時間測定装置、呼処理時間測定方法および呼処理時間測定用プログラム
US11088960B2 (en) Information processing apparatus and verification system
US10277498B2 (en) Analysis of network performance
JP4798495B2 (ja) 映像配信品質測定システム、装置および方法
KR101866377B1 (ko) Sdn상의 멀티캐스트 패킷 손실 위치 탐지 방법

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: 15902127

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: 15902127

Country of ref document: EP

Kind code of ref document: A1