WO2023157052A1 - 収集装置、収集方法および収集プログラム - Google Patents
収集装置、収集方法および収集プログラム Download PDFInfo
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- WO2023157052A1 WO2023157052A1 PCT/JP2022/005826 JP2022005826W WO2023157052A1 WO 2023157052 A1 WO2023157052 A1 WO 2023157052A1 JP 2022005826 W JP2022005826 W JP 2022005826W WO 2023157052 A1 WO2023157052 A1 WO 2023157052A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/02—Capturing of monitoring data
- H04L43/026—Capturing of monitoring data using flow identification
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- 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
- H04L41/14—Network analysis or design
- H04L41/142—Network analysis or design using statistical or mathematical methods
-
- 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
- H04L43/02—Capturing of monitoring data
Definitions
- the present invention relates to a collection device, collection method and collection program.
- NetFlow is known as a technique for sending flow statistical information in a network (see Non-Patent Document 1).
- the present invention has been made in view of the above, and aims to focus on monitoring an event to be monitored while considering network restrictions.
- a collection device provides an identification unit that identifies a traffic path based on past flow information, and a traffic related to a designated event that is identified. and a determination unit that determines a network device on the path.
- FIG. 1 is a diagram for explaining the outline of the collection device of this embodiment.
- FIG. 2 is a diagram for explaining the configuration of a collection system including collection devices.
- FIG. 3 is a schematic diagram illustrating the schematic configuration of the collecting device.
- FIG. 4 is a flow chart showing a collection processing procedure.
- FIG. 5 is a diagram for explaining a conventional technique.
- FIG. 6 is a diagram showing an example of a computer that executes a collection program.
- FIG. 1 is a diagram for explaining the outline of the collection device of this embodiment.
- the collection device 10 connects network devices 2 (NE, Network Element) and IF (Network Element) such as routers arranged on traffic exchange. Interface).
- network devices 2 NE, Network Element
- IF Network Element
- the collection device 10 solves the traffic path in advance based on the flow information obtained during normal operation and stored in the data lake 4 .
- the collection device 10 discriminates the router and IF through which the traffic of the user in question passes and sets them as monitoring targets, increases the sampling rate of the IF of the user in question, and collects the flow statistics from the xFlow conversion device 3. control the collection of information;
- the collection device 10 can collect the maximum amount of flow statistical information that is to be intensively monitored while reducing information as a whole, and can capture events that occur infrequently. If the number of combinations of all routers and IFs is N, and the number of combinations of routers and IFs through which event-related traffic passes is K, the information reduction effect is K/N.
- FIG. 2 is a diagram for explaining the configuration of a collection system including collection devices.
- the collection system 1 includes a router 2 on the VPN, an xFlow conversion device 3, and a data lake 4 in addition to the collection device 10.
- FIG. 2 is a diagram for explaining the configuration of a collection system including collection devices.
- the collection system 1 includes a router 2 on the VPN, an xFlow conversion device 3, and a data lake 4 in addition to the collection device 10.
- the router 2 has the functions of the external device 2b related to the collection processing described later added to the functions of the conventional router 2a.
- the external device 2b is implemented using an NP (Network Processor) or the like, and as will be described later, according to instructions from the collection device 10, settings such as output/stop of flow statistical information to be collected for the router 2a make changes.
- NP Network Processor
- the xFlow converter 3 collects flow statistical information from the router 2 a and stores the collected flow statistical information in the data lake 4 . At that time, the xFlow conversion device 3 collects flow statistical information at a sampling rate specified in the collection process described later.
- the data lake 4 is realized by a database device or the like, and stores collected flow statistical information.
- the collection device 10 resolves traffic paths in advance using the normal flow statistical information obtained from the data lake 4 .
- the collection device 10 identifies the traffic path related to the event, identifies the routers 2 on the path, and selects the routers 2 to be focused flow statistical information collection targets. do.
- the collection device 10 instructs the external device 2b of the router 2, which is the collection target of the flow statistical information, to change settings according to the collection position, such as output/stop of the flow statistical information to be collected.
- FIG. 3 is a schematic diagram illustrating the schematic configuration of the collecting device.
- the collection device 10 of this embodiment is realized by a general-purpose computer such as a personal computer, and includes an input unit 11 , an output unit 12 , a communication control unit 13 , a storage unit 14 and a control unit 15 .
- the input unit 11 is implemented using input devices such as a keyboard and a mouse, and inputs various instruction information such as processing start to the control unit 15 in response to input operations by the operator.
- the output unit 12 is implemented by a display device such as a liquid crystal display, a printing device such as a printer, or the like. For example, the output unit 12 displays the result of collection processing, which will be described later.
- the communication control unit 13 is realized by a NIC (Network Interface Card) or the like, and controls communication between an external device and the control unit 15 via an electrical communication line such as a LAN (Local Area Network) or the Internet.
- the communication control unit 13 controls communication between the router 2, the xFlow conversion device 3 that outputs the flow statistical information of the router 2, the data lake 4, and the like, and the control unit 15.
- FIG. 1 Network Interface Card
- the storage unit 14 is implemented by semiconductor memory devices such as RAM (Random Access Memory) and flash memory, or storage devices such as hard disks and optical disks.
- a processing program for operating the collecting device 10 data used during execution of the processing program, and the like are stored in advance, or are temporarily stored each time processing is performed.
- the storage unit 14 may be configured to communicate with the control unit 15 via the communication control unit 13 .
- the control unit 15 is implemented using a CPU (Central Processing Unit) or the like, and executes a processing program stored in memory. Thereby, as illustrated in FIG. 3, the control unit 15 functions as an acquisition unit 15a, a specification unit 15b, a determination unit 15c, and an instruction unit 15d. Note that these functional units may be implemented in different hardware, respectively or partially.
- the acquisition unit 15a may be implemented as a device different from other functional units.
- the control unit 15 may include other functional units.
- the acquisition unit 15a acquires past flow information. For example, the acquisition unit 15 a acquires normal flow information stored in the data lake 4 via the input unit 11 or the communication control unit 13 .
- the acquisition unit 15a may store the acquired past flow information in the storage unit 14 prior to the collection process described later. Alternatively, the acquiring unit 15a may transfer these pieces of information to the specifying unit 15b described below without storing them in the storage unit 14. FIG.
- the identifying unit 15b identifies a traffic path based on past flow information. Specifically, the identifying unit 15 b resolves the traffic path for the normal flow information acquired from the data lake 4 .
- the determination unit 15c determines the router 2 on the identified path for traffic related to the specified event. Specifically, when information designating an event to be monitored is input via the input unit 11 or the communication control unit 13, the determining unit 15c determines whether the router on the traffic path related to the event specified by the specifying unit 15b 2 and IF are determined. For example, the discrimination unit 15c discriminates the router 2 and the IF of UserB's traffic in the event, as illustrated in FIG.
- the instruction unit 15d instructs collection of flow statistical information from the determined router 2. Specifically, the instructing unit 15d instructs the determined external device 2b of the router 2 to change the setting so as to output the flow statistical information to the xFlow conversion device 3 via the communication control unit 13. .
- the instruction unit 15d instructs the external device 2b of the router 2 accommodating UserB to output flow statistical information.
- the instruction unit 15d instructs the external device 2b of the router 2 accommodating UserA and UserC to stop outputting the flow statistical information. This allows the collection system 1 to collect userB-specific flow statistics information related to the event.
- the instruction unit 15d may instruct collection so that the granularity of collection of flow statistical information from the determined router 2 is higher than the granularity of collection of flow statistical information from routers 2 other than this router 2 .
- the instructing unit 15d instructs the xFlow conversion device 3 to set the sampling rate from the determined router 2 higher than the sampling rate of other routers 2 .
- the collection system 1 can collect the flow statistical information of the traffic to be monitored intensively, and minimize the collection of the flow statistical information of other traffic. In this way, it is possible to collect the maximum amount of flow statistical information of traffic to be monitored, taking into account network restrictions.
- FIG. 4 is a flow chart showing a collection processing procedure.
- the flowchart of FIG. 4 is started, for example, at the timing when the user performs an operation input instructing the start.
- the acquisition unit 15a acquires normal flow information from the data lake 4. Further, the identifying unit 15b identifies a traffic path based on the acquired normal flow information (step S1).
- the identification unit 15b identifies a traffic path related to the event, and the determination unit 15c determines the router 2 and IF on the traffic path (step S2).
- the instruction unit 15d instructs collection of flow statistical information from the determined router 2 (step S3). Specifically, the instruction unit 15 d instructs the external device 2 b of the determined router 2 to output the flow statistical information to the xFlow conversion device 3 via the communication control unit 13 . The instruction unit 15d also instructs the external device 2b of the other router 2 to stop outputting the flow statistical information to the xFlow conversion device 3.
- FIG. 1 the instruction unit 15d instructs collection of flow statistical information from the determined router 2 (step S3). Specifically, the instruction unit 15 d instructs the external device 2 b of the determined router 2 to output the flow statistical information to the xFlow conversion device 3 via the communication control unit 13 . The instruction unit 15d also instructs the external device 2b of the other router 2 to stop outputting the flow statistical information to the xFlow conversion device 3.
- the instruction unit 15d designates the sampling rate from each router 2 to the xFlow conversion device 3. At that time, the instruction unit 15d instructs the xFlow conversion device 3 to set the sampling rate from the determined router 2 higher than the sampling rate of the other routers 2 . This completes a series of collection processing.
- the xFlow conversion device 3 collects flow statistical information from the determined router 2 intensively and stores it in the data lake 4 .
- the identification unit 15b identifies a traffic path based on past flow information.
- the determination unit 15c determines the network device (router) 2 on the identified path for traffic related to the designated event.
- FIG. 5 is a diagram for explaining the conventional technology.
- xFlow including conventional NetFlow it is difficult to change the sampling rate of flow statistical information to be collected for each user. Therefore, even if there is an event related to a user to be monitored intensively, the amount of information to be collected is enormous, and it has been difficult to carefully monitor it.
- the collection device 10 of the present embodiment it is possible to determine the router 2 through which the event-related traffic passes as the router 2 to be focused on. Therefore, it is possible to collect the maximum amount of flow statistical information that is to be monitored intensively while reducing information as a whole, and to capture events that occur infrequently. In this way, it is possible to perform intensive monitoring of events to be monitored while considering network restrictions.
- the instruction unit 15d instructs collection of flow statistical information from the determined router 2.
- the collection device 10 can collect flow statistical information limited to events targeted for intensive monitoring.
- the instruction unit 15d instructs collection such that the granularity of collection of flow statistical information from the determined router 2 is higher than the granularity of collection of flow statistical information from routers 2 other than this router 2 .
- the instruction unit 15d instructs collection such that the granularity of collection of flow statistical information from the determined router 2 is higher than the granularity of collection of flow statistical information from routers 2 other than this router 2 .
- the collection device 10 can be implemented by installing a collection program for executing the above collection processing as package software or online software on a desired computer.
- the information processing device can function as the collection device 10 by causing the information processing device to execute the collection program.
- the information processing apparatus referred to here includes a desktop or notebook personal computer.
- information processing devices include smart phones, mobile communication terminals such as mobile phones and PHSs (Personal Handyphone Systems), and slate terminals such as PDAs (Personal Digital Assistants).
- the functions of the collection device 10 may be implemented in a cloud server.
- FIG. 6 is a diagram showing an example of a computer that executes a collection program.
- Computer 1000 includes, for example, memory 1010 , CPU 1020 , hard disk drive interface 1030 , disk drive interface 1040 , serial port interface 1050 , video adapter 1060 and network interface 1070 . These units are connected by a bus 1080 .
- the memory 1010 includes a ROM (Read Only Memory) 1011 and a RAM 1012 .
- the ROM 1011 stores a boot program such as BIOS (Basic Input Output System).
- BIOS Basic Input Output System
- Hard disk drive interface 1030 is connected to hard disk drive 1031 .
- Disk drive interface 1040 is connected to disk drive 1041 .
- a removable storage medium such as a magnetic disk or an optical disk is inserted into the disk drive 1041, for example.
- a mouse 1051 and a keyboard 1052 are connected to the serial port interface 1050, for example.
- a display 1061 is connected to the video adapter 1060 .
- the hard disk drive 1031 stores an OS 1091, application programs 1092, program modules 1093 and program data 1094, for example. Each piece of information described in the above embodiment is stored in the hard disk drive 1031 or the memory 1010, for example.
- the collection program is stored in the hard disk drive 1031, for example, as a program module 1093 in which commands to be executed by the computer 1000 are described.
- the hard disk drive 1031 stores a program module 1093 that describes each process executed by the collection apparatus 10 described in the above embodiment.
- Data used for information processing by the collection program is stored as program data 1094 in the hard disk drive 1031, for example. Then, the CPU 1020 reads out the program module 1093 and the program data 1094 stored in the hard disk drive 1031 to the RAM 1012 as necessary, and executes each procedure described above.
- program module 1093 and program data 1094 related to the collection program are not limited to being stored in the hard disk drive 1031.
- they may be stored in a removable storage medium and read by the CPU 1020 via the disk drive 1041 or the like.
- the program module 1093 and program data 1094 related to the collection program are stored in another computer connected via a network such as LAN or WAN (Wide Area Network), and are read out by the CPU 1020 via the network interface 1070.
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Abstract
Description
図1は、本実施形態の収集装置の概要を説明するための図である。収集装置10は、重要ユーザ申告、DDoS攻撃、OSアップデート、OTT障害等のイベントが発生した際に、トラヒックの交流上に配置されているルータ等のネットワーク装置2(NE、Network Element)やIF(Interface)を重点的に監視する。
図2は、収集装置を含む収集システムの構成を説明するための図である。図2に示すように、収集システム1は、収集装置10の他に、VPN上のルータ2、xFlow変換装置3、データレイク4を含んで構成される。
図3は、収集装置の概略構成を例示する模式図である。図3に例示するように、本実施形態の収集装置10は、パソコン等の汎用コンピュータで実現され、入力部11、出力部12、通信制御部13、記憶部14、および制御部15を備える。
次に、図4を参照して、本実施形態に係る収集装置10による収集処理について説明する。図4は、収集処理手順を示すフローチャートである。図4のフローチャートは、例えば、ユーザが開始を指示する操作入力を行ったタイミングで開始される。
以上、説明したように、本実施形態の収集装置10において、特定部15bが、過去のフロー情報に基づいて、トラヒックのパスを特定する。判別部15cが、指定されたイベントに関するトラヒックについて、特定されたパス上のネットワーク装置(ルータ)2を判別する。
上記実施形態に係る収集装置10が実行する処理をコンピュータが実行可能な言語で記述したプログラムを作成することもできる。一実施形態として、収集装置10は、パッケージソフトウェアやオンラインソフトウェアとして上記の収集処理を実行する収集プログラムを所望のコンピュータにインストールさせることによって実装できる。例えば、上記の収集プログラムを情報処理装置に実行させることにより、情報処理装置を収集装置10として機能させることができる。ここで言う情報処理装置には、デスクトップ型またはノート型のパーソナルコンピュータが含まれる。また、その他にも、情報処理装置にはスマートフォン、携帯電話機やPHS(Personal Handyphone System)などの移動体通信端末、さらには、PDA(Personal Digital Assistant)などのスレート端末などがその範疇に含まれる。また、収集装置10の機能を、クラウドサーバに実装してもよい。
2、2a ネットワーク装置(ルータ)
2b 外付け装置
3 xFlow変換装置
4 データレイク
10 収集装置
11 入力部
12 出力部
13 通信制御部
14 記憶部
15 制御部
15a 取得部
15b 特定部
15c 判別部
15d 指示部
Claims (5)
- 過去のフロー情報に基づいて、トラヒックのパスを特定する特定部と、
指定されたイベントに関するトラヒックについて、特定されたパス上のネットワーク装置を判別する判別部と、
を有することを特徴とする収集装置。 - 判別された前記ネットワーク装置からのフロー統計情報の収集を指示する指示部をさらに有することを特徴とする請求項1に記載の収集装置。
- 前記指示部は、判別された前記ネットワーク装置からのフロー統計情報の収集粒度を、該ネットワーク装置以外のネットワーク装置からのフロー統計情報の収集粒度より高くするように、収集を指示することを特徴とする請求項2に記載の収集装置。
- 収集装置が実行する収集方法であって、
過去のフロー情報に基づいて、トラヒックのパスを特定する特定工程と、
指定されたイベントに関するトラヒックについて、特定されたパス上のネットワーク装置を判別する判別工程と、
を含んだことを特徴とする収集方法。 - 過去のフロー情報に基づいて、トラヒックのパスを特定する特定ステップと、
指定されたイベントに関するトラヒックについて、特定されたパス上のネットワーク装置を判別する判別ステップと、
をコンピュータに実行させるための収集プログラム。
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US18/837,973 US20250150366A1 (en) | 2022-02-15 | 2022-02-15 | Collecting device, collecting method, and collecting program |
PCT/JP2022/005826 WO2023157052A1 (ja) | 2022-02-15 | 2022-02-15 | 収集装置、収集方法および収集プログラム |
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WO2016147613A1 (ja) * | 2015-03-13 | 2016-09-22 | 日本電気株式会社 | 管理装置、ネットワーク管理方法及びプログラムが記憶された記憶媒体 |
JP2018098590A (ja) * | 2016-12-09 | 2018-06-21 | 日本電信電話株式会社 | トラヒック需要予測装置、トラヒック需要予測方法、及びプログラム |
JP2021013081A (ja) * | 2019-07-05 | 2021-02-04 | アラクサラネットワークス株式会社 | 監視システム、収集装置、アナライザ、監視方法、および監視プログラム |
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- 2022-02-15 WO PCT/JP2022/005826 patent/WO2023157052A1/ja active Application Filing
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WO2016147613A1 (ja) * | 2015-03-13 | 2016-09-22 | 日本電気株式会社 | 管理装置、ネットワーク管理方法及びプログラムが記憶された記憶媒体 |
JP2018098590A (ja) * | 2016-12-09 | 2018-06-21 | 日本電信電話株式会社 | トラヒック需要予測装置、トラヒック需要予測方法、及びプログラム |
JP2021013081A (ja) * | 2019-07-05 | 2021-02-04 | アラクサラネットワークス株式会社 | 監視システム、収集装置、アナライザ、監視方法、および監視プログラム |
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