WO2002082727A1 - Method for collecting a network performance information, computer readable medium storing the same, and an analysis system and method for network performance - Google Patents

Method for collecting a network performance information, computer readable medium storing the same, and an analysis system and method for network performance Download PDF

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Publication number
WO2002082727A1
WO2002082727A1 PCT/KR2002/000593 KR0200593W WO02082727A1 WO 2002082727 A1 WO2002082727 A1 WO 2002082727A1 KR 0200593 W KR0200593 W KR 0200593W WO 02082727 A1 WO02082727 A1 WO 02082727A1
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WO
WIPO (PCT)
Prior art keywords
information
test
network
network performance
module
Prior art date
Application number
PCT/KR2002/000593
Other languages
English (en)
French (fr)
Inventor
Soo-Young Oh
Original Assignee
Nfratech Inc.
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 Nfratech Inc. filed Critical Nfratech Inc.
Publication of WO2002082727A1 publication Critical patent/WO2002082727A1/en

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Classifications

    • 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
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/508—Network service management, e.g. ensuring proper service fulfilment according to agreements based on type of value added network service under agreement
    • H04L41/5096—Network service management, e.g. ensuring proper service fulfilment according to agreements based on type of value added network service under agreement wherein the managed service relates to distributed or central networked applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3466—Performance evaluation by tracing or monitoring
    • G06F11/3495—Performance evaluation by tracing or monitoring for systems
    • 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
    • H04L43/0852—Delays
    • H04L43/0864—Round trip delays
    • 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
    • H04L43/50—Testing arrangements
    • 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
    • H04L43/50—Testing arrangements
    • H04L43/55—Testing of service level quality, e.g. simulating service usage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
    • G06F11/3414—Workload generation, e.g. scripts, playback
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
    • G06F11/3419—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment by assessing time
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/875—Monitoring of systems including the internet

Definitions

  • the present invention relates to a system and method for analyzing
  • the present invention relates to a
  • Internet-related business categories include web contents
  • providers such as network service providers, portal service providers, and
  • IDC internet contents delivery
  • CDN web contents delivery
  • PMP performance measurement portal
  • Internet equipment providers e.g., PCs, servers, load
  • recording medium storing a network performance information collecting
  • performance information comprises: (a) accessing a network performance
  • test location (uniform resource location), and a test location used for testing the network
  • test homepage and file downloading ; and (d) generating a log file on the basis
  • a schedule module including at least one test from among a
  • an ICMP (Internet control message protocol) module having a
  • trace-route function to transmit an ICMP echo message to at least one network
  • the recording medium further comprises a manager program including
  • a TCP client module for transmitting the analysis log information using a
  • the manager program controls generation and removal of at least one
  • agent program including an ICMP module, a Winlnet module, an analysis
  • TCP client module a TCP client module
  • schedule module a schedule module
  • analysis system comprises: a plurality of client systems for using a client
  • server and a database, for providing predetermined schedule instructions for a network performance analysis to clients that are locally scattered and installed
  • server system for providing various types of statistical information on the basis
  • the (b) comprises: (1 ) attempting to access a corresponding medium
  • the computer readable recording medium storing the method, and the network
  • FIG. 1 shows a block diagram for a network performance analysis
  • FIG. 2 shows a client program according to a preferred embodiment of
  • FIG. 3 shows a signal flowchart between a TCP client module and a log server for describing data communication protocol
  • FIG. 4 shows a flowchart for an operation of a manager program
  • FIG. 5(a) shows a flowchart for an operation of an agent program
  • FIG. 5(b) shows a flowchart for an operation of an agent program
  • FIG. 6 shows a flowchart for describing a network performance test by
  • FIG. 7 shows a flowchart for an access to a server according to a
  • FIG. 8 shows a flowchart for describing packet flows of a trace-route
  • FIG. 9 shows a diagram for measuring a receiving speed and a cut
  • FIG. 10 shows a flowchart for a network performance analysis method
  • FIG. 1 1 shows a network performance analysis server system
  • FIG. 1 shows a block diagram for a network performance analysis
  • NPASS network performance analysis server system
  • the NPASS 100 comprises a log server 1 10, a database server 120,
  • the NPASS 100 generates various types of statistical information
  • the network manager for providing various services, and it is also preferable for the network manager to be able to process the statistical information such that it can be
  • the client system 200 that is accessible to the Internet or the networks
  • manager program 210 comprises a manager program 210 and an agent program 220, and it is a
  • the client system 200 receives the schedule
  • the client system 200 receives
  • the hops include network
  • a server such as a server, a RAS (remote access server), or a router.
  • RAS remote access server
  • the client system accesses a
  • predetermined site via a plurality of hops, and downloads the first web page
  • the measured system 300 may be a system for managing a
  • the Internet is exemplified for the measured system 300, but the
  • measured system may further comprise wire and wireless communication
  • FIG. 2 shows a client program according to a preferred embodiment of
  • the client program 200 comprises: a
  • manager program 210 including a TCP client module 212; and an agent
  • program 220 including a schedule module 221 , an ICMP (Internet control
  • the client program 200 accesses a web site according to a schedule
  • an IDC Internet data
  • a plurality of client servers may also be set within the
  • the TCP client module 212 transmits various types of analysis
  • the log server 110 provides various categories of statistical
  • the log data tested by the client that is, a kind of a protocol, are
  • the client program 200 generates log data when each test is not
  • the log data are stored in a client PC's HDD or a floppy disk and
  • the log server 1 10 checks whether the log data transmitted by the client program 200 are correct, and transmits checking results to the
  • the log server 110 checks the log data and notifies the
  • client program 200 of an ACK or NAK response is included in client program 200 of an ACK or NAK response.
  • the TCP client module 212 is installed in the manager program to perform TCP
  • FIG. 3 shows a signal flowchart between a TCP client module and a
  • the client program 200 waits for an ACK
  • the client program 200 determines that
  • the log server 110 performs several tests on the transmitted log
  • the client program drives a timer, which is
  • timing out software That is, when the client program transmits log information
  • the client program processes this as time ⁇
  • the log information is transmitted to the log server 1 10 through the
  • the ACK/NAK frame is then transmitted to the client through
  • a second problem may exist in that the frame synchronized state
  • log time information and the ACK/NAK may be transmitted together.
  • the client program checks to what log the
  • schedule module 221 receives schedule information on a test procedure and a
  • the NPASS controls the client programs
  • using the NPASS may be configured so as to 1 ) perform a test during
  • each client program is assigned a serial number, and the NPASS controls the
  • the ICMP module 222 has a trace-route function to transmit an ICMP
  • the ICMP module 222 the ICMP module 222
  • routers on the corresponding paths, time delay factors between the hops, and
  • the client program may define ICMP items including TTL (time to live),
  • the packet loss rates generated from the respective routers may be any packet loss rates generated from the respective routers.
  • the ICMP packets are transmitted to the hops each provided on the corresponding path by the predetermined number of ICMP
  • the Winlnet module 223 measures the users' network performance on
  • the performance measurement may be performed under the
  • the client program 200 reads the schedule set by the NPASS 100
  • the analysis module 224 generates various measurement result data
  • the media connection module 225 performs a media access operation to wire and wireless terminals or modems in each test stage. In this instance,
  • the media access operation includes a first network access method for
  • Internet may be calculated. Furthermore, the client program separately
  • the client program uses the access methods of the wire and wireless
  • the through the first network access method includes (1) access information, (2)
  • the client program processes cases of when the
  • the client program is programmed to check an RAS access when the
  • the client program when determining that the RAS access has failed, the client program leaves an error message of "User authentication has failed," and in
  • MSDN Microsoft Developer Network
  • the client program After successful access, the client program performs corresponding
  • the download count represents a number of files that form the first
  • images files e.g., those of GIF and JPG formats) as download target files.
  • the download size indicates a number of total bytes of the files that
  • the download speed shows a mean down speed (in bytes/sec)
  • problems may be generated to the actual data
  • predetermined server provided in a corresponding medium after access
  • the measurement server transmits
  • an error code (e.g., 404) to the client program instead of contents of the file.
  • the error code transmitted by the server becomes a measuring target
  • the error code is dynamically processed by the corresponding
  • the DNS count represents a number of times the DNS used for
  • IP Internet protocol
  • the DNS time indicates a total time spent calling the DNS that is
  • the server count represents a number of HTTP server connection
  • the server time shows a total time used for a HTTP server connection
  • the client program uses an ICMP protocol at each
  • Table 4 shows items that are transmitted to the NPASS and used as
  • the description of the first item that is, the (1) access information.
  • FIG. 4 shows a flowchart for an operation of the manager program
  • the number of tasks represents the number of agent
  • information include personal information (e.g., a name, an address, and a
  • step S114 It is checked whether the number of tasks is provided in step S114.
  • the manager program 210 When the number of tasks is provided, the manager program 210
  • step S1 14 When the number of tasks is provided in step S1 14, it is checked
  • server 1 10 (e.g., a socket connection) is performed in step S122.
  • test data are transmitted to the log server 1 10 in
  • step S124
  • the number of the process for going to the step S124 may be
  • step S132 corresponding to a message transmission is received from the corresponding agent program in step S132.
  • step S134 When the ACK message is received, it is checked whether a
  • predetermined time is passed in step S136.
  • time includes a period from a start time to an end time of driving the agent
  • step S138 and it goes to the previous step S130.
  • a plurality of agent programs 220 may be installed
  • the manager program may generate at least two agent
  • FIG. 5(a) shows a flowchart for an operation of the agent program
  • the agent program is executed in step S210,
  • step S212 the ping message is used to test transmission
  • refreshing represents a function for terminating the agent program for each
  • predetermined time interval e.g., a one-hour time interval
  • agent program is re-executed by the manager program.
  • agent program is terminated and reset, and when it requires no refreshing, a
  • ping message is transmitted to check the network activation state in step S218.
  • step S222 when the schedule information includes an
  • network test information may be
  • feedback may be determined by the schedule information, and when the
  • schedule information includes no further information on the measured targets
  • FIG. 5(b) shows a flowchart for an operation of the agent program
  • an agent program is executed in step S250, and
  • step S252 An access to a medium is attempted to check whether the access to
  • step S256 determines whether the access to the log server is successful in step S256.
  • step S256 When the log-in access in step S256 is successful, corresponding log
  • trace-route test is performed in step S260.
  • a URL download test operation is performed in step S262, test log
  • step S264 the access to the medium is cancelled
  • FIG. 6 shows a packet flow of the trace-route according to the
  • FIG. 5 in detail.
  • the corresponding hops determine
  • the corresponding packet is no longer transmitted to the destination, but a time-out packet, preferably a time exceeded error ICMP
  • response by the time exceeded error ICMP packet is based on the RFC792
  • terminal may receive a time exceeded error ICMP packet from the first router
  • the terminal may receive a time exceeded error
  • ICMP packet from the second hop such as a router.
  • the trace-route operation may be
  • hops e.g., routers
  • test information such as a packet loss
  • FIG. 7 shows a flowchart for a network performance test by a client
  • the NPASS is accessed to download schedule information including a starting time, a
  • step S310 measuring target, a URL, and a test location required for the test in step S310.
  • An ICMP test is performed to analyze network service contents
  • step S330 thereby receiving test results in step S330.
  • An access to a corresponding service e.g., a predetermined Internet
  • step S360 access to the corresponding site is disconnected in step S360, and it goes to
  • FIG. 8 shows a server access diagram according to the preferred embodiment
  • the measured server by a test program, and the measured server transmits an
  • the measuring program When receiving the access permission signal, the measuring program
  • measured server provides a corresponding file to the measuring program (i.e.,
  • connection succeeded and the corresponding time spent is measured as a
  • the communication protocol may apply identical methods to the Telnet, the FTP, and
  • FIG. 9 shows a process for measuring a receiving speed and a
  • ACK & header data (i.e., "ACK & header data") is received from the measured server, that is, an
  • the information is used so as to measure receiving speeds and
  • FIG. 10 shows a flowchart for a network performance analysis method
  • step S410 the log server 1 10 is operated in step S410 to
  • step S416 It is checked in step S416 whether the log information is formatted
  • the reason for receiving formatted data is for the
  • FIG. 1 1 shows an NPASS according to the preferred embodiment of
  • the NPASS comprises a log server 1 10, a
  • the database server 120 includes a database server 120, and a web server 130.
  • the database server 120 includes a web server 120.
  • a daily report generator 121 comprises a daily report generator 121 , an access time analyzer 122, a
  • download time analyzer 123 a download speed analyzer 124, an agent
  • the NPASS receives, in a predetermined log format, network
  • contents service performance information from corresponding media, analyzes
  • each information set stores the same, and provides each stored analysis
  • the network performance analysis request system may also receive a
  • Internet and network infrastructures may be measured and managed by using
  • services such as consulting may be provided so that effective
  • contents services may be provided through information on various types of
  • the Internet performance may be enhanced

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer And Data Communications (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Debugging And Monitoring (AREA)
PCT/KR2002/000593 2001-04-06 2002-04-03 Method for collecting a network performance information, computer readable medium storing the same, and an analysis system and method for network performance WO2002082727A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2001-0018292A KR100405054B1 (ko) 2001-04-06 2001-04-06 통신 품질 정보 수집 방법과 이를 내장한 컴퓨터가 판독가능한 기록 매체와 이를 이용한 통신 품질 분석 시스템및 그 방법
KR2001-0018292 2001-04-06

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CN112511454A (zh) * 2020-10-14 2021-03-16 网宿科技股份有限公司 一种网络质量的探测方法、系统及装置
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CN113063454A (zh) * 2020-09-15 2021-07-02 山东华科信息技术有限公司 批量检测水浸传感器的检测系统及其检测方法

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