KR20020058767A - Apparatus and Method for an efficiency test of Internet Quality Measurement System - Google Patents

Abstract

PURPOSE: A method and a device for measuring performance of an Internet quality measuring device are provided to carry out a performance test of the Internet quality measuring system through the diversity variables occurred on the Internet network by supplying a virtual Internet network environment. CONSTITUTION: The device comprises the Internet quality measuring system(10) based on the ICMP(Internet Control Message Protocol) and a performance measuring system(100) inspecting that the Internet quality measuring system is operated by the designed contents. The Internet quality measuring system includes an NIC(Network Interface Card)(12) embedding a network connection port and connecting to the network, a packet adaptor(14) transceiving an ICMP packet through a network card, a measuring information part(16) storing the information necessary for the ICMP packet transmission, an ICMP test module(18) and a measuring result processing module(20). The ICMP test module transmits the ICMP packet to a network component corresponding to an Internet address and generates a test result by receiving the ICMP response packet.

Description

Apparatus and Method for an efficiency test of Internet Quality Measurement System

The present invention relates to the performance measurement of an Internet quality measurement system for measuring Internet quality using Internet Control Message Protocol (ICMP) packets on the Internet. The present invention relates to a method and apparatus for measuring the performance of an internet quality measuring apparatus which performs a simulation to check whether the operation of the internet quality measuring system operates according to the design content.

As the use of the Internet is rapidly increasing, the quality of the network is becoming important.In order to improve the quality of the network, availability information on the network elements such as hosts and routers on the Internet, packet delays, packets An internet quality measurement system for measuring the quality of an internet network by collecting network quality parameters such as loss is being developed.

In addition, in order to determine whether the Internet quality measurement system operates correctly as the design contents, it is necessary to connect the Internet quality inspection system with the actual Internet network and perform a performance test to correctly collect network quality parameters for various equipment in the network.

However, the performance test of the Internet quality measurement system is not performed due to the difficulty of forcibly shutting down the network elements or varying the packet delay or packet loss. have.

Therefore, in view of the above-described problems, the present invention provides a virtual Internet network environment that virtually provides network elements such as a router and a host, such as an actual Internet network environment, when the performance test of the Internet quality measurement system is performed. The purpose of the present invention is to provide a method and apparatus for measuring the performance of an internet quality measuring apparatus which performs various kinds of variables that can occur in the internet network.

1 is a block diagram of an Internet quality measurement system to which the present invention is applied and a performance measurement system according to the present invention.

FIG. 2 is a connection configuration diagram of an internet quality measurement system and a performance measurement system of FIG. 1.

3 is a diagram illustrating a connection between a virtual network element provided by the Internet quality measurement system and the performance measurement system of FIG.

4 is a flowchart illustrating a process of measuring internet quality of the internet quality measuring system according to FIG. 1.

FIG. 5 is a flowchart illustrating a method for measuring performance of an internet quality measuring system according to FIG. 1.

<Symbols of main parts of drawing>

10: Internet quality measurement system 12,102: network card

12a-12c, 102a-102c: port 14,104: packet adapter

16 measurement information unit 18 ICMP test module unit

20: measurement result processing module 50: output device

100: performance measurement system 106: reaction information unit

108: ICMP response module unit 106a ~ 106f: virtual internet network element

In the performance measuring apparatus of the Internet quality measuring apparatus for measuring the quality of the Internet network based on ICMP for achieving the above object,

Providing performance measurement means for providing a virtual network element to simulate the performance of the Internet quality measurement apparatus;

The performance measuring means may include: a network connection part connected to a network and having a network connection port therein and connected to the internet quality measuring device;

A response information unit generating response information which is a system environment for the virtual network element; And

And an ICMP response module unit for generating an ICMP response packet corresponding to the ICMP packet received from the Internet quality measuring apparatus according to the response information with reference to the response information of the response information unit.

In addition, in the performance measurement method of the Internet quality measurement apparatus for measuring the quality of the Internet network based on ICMP for achieving the above object,

Providing a virtual network element and including a performance measurement method for simulating whether the Internet quality measurement method of the Internet quality measurement device is implemented according to the design contents;

The performance measuring method may include a first step of receiving an ICMP packet from the Internet quality measuring device connected one-to-one with a performance measuring device; And

And a second process of referring to the response information through a destination internet address of the ICMP packet, which is an internet address for the virtual network element, and transmitting an ICMP response packet for the ICMP packet according to the referenced response information. It is done.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an Internet quality measurement system 10 to which the present invention is applied and a performance measurement system 100 according to the present invention. An Internet quality measurement system 10 and an Internet quality measurement system 10 based on ICMP are designed. It consists of a performance measurement system 100 that checks whether it works by content.

The Internet quality measurement system 10 is an expansion card that is always connected to the network, a network connection port (Port) built-in, the network card (Network Interface Card) connected to the network through a port connected to the network of the network access port (Network Interface Card: NIC) 12;

A packet adapter 14 for transmitting and receiving ICMP packets through a network card;

Information necessary for ICMP packet transmission, such as the IP address of the destination (Internet network element) to which the ICMP packet will be transmitted, and the ICMP measurement cycle that defines the time interval between transmitting the ICMP packet and transmitting the next ICMP packet. A measurement information unit 16 for storing;

ICMP response packet which transmits an ICMP packet to the network element corresponding to a destination internet address through the packet adapter 14 using the destination internet address of the measurement information part 16, and is an ICMP response packet which is a response packet (receive packet) to the transmitted ICMP packet. An ICMP test module unit 18 for receiving the packet through the packet adapter 14 and generating a measurement result; And

Receives the measurement results from the ICMP test module unit 18 and generates Internet quality results by design contents, which are quality measurement result modules corresponding to various Internet environments, and outputs the quality results through an output device (eg, PC, printer, etc.). It consists of the measurement result processing module part 20 which outputs.

The performance measurement system 100 is an expansion card to be always connected to the network, a network card (102) built-in network connection port (Port), and connected to the network through a port connected to the network of the network connection port (102);

A packet adapter 104 for transmitting and receiving ICMP packets through a network card;

A reaction information unit (106) for generating reaction information which is a virtual system environment for the virtual network element as the destination; And

Receiving an ICMP packet from the packet adapter 104, generates an ICMP response packet for the received ICMP packet by referring to the response information of the response information unit 106, and through the packet adapter 104 the Internet quality measurement system ( 10) and ICMP response module 108 for transmitting.

The response information stored in the response information unit 106 includes a virtual internet address which is an internet address of a virtual network element provided by the performance measurement system 100;

Flag information indicating whether the network element is currently in normal operation or shutdown state; flag information;

Response packet delay information indicating numerical information on the degree of packet delay when delaying the transmission of an ICMP response packet for an ICMP packet received by the network element; And

When the ICMP response packet is transmitted after a loss, the ICMP response packet includes response packet loss information indicating numerical information on the degree of packet loss.

FIG. 2 is a diagram illustrating a connection between the performance measurement system 100 and the internet quality measurement system 10 of FIG. 1, and as many connections as the number of connected network connection ports are created.

FIG. 2 is a port for connecting to the performance measurement system 100 among the network connection ports included in each network card 12 existing in the Internet quality system 10, and the performance measurement system 100 through the selected port. It is connected to the corresponding port embedded in the network card.

That is, if the quality of the Internet network is measured using P1 (12a), P2 (12b), ..., Pn (12c) of the network connection ports of the Internet quality measurement system 10, the number of connected ports N connections are created.

The connection of the Internet quality measurement system 10 and the performance measurement system 100 of FIG. 2 is P1 12a, P2 12b, ..., Pn (12c) which are network connection ports of the Internet measurement system 10. ) And P'1 (102a), P'2 (102b), ..., P'n (102c), which are network connection ports, of the performance measurement system.

2 shows P1 12a and P'1 102a connected (link 1), P2 12b and P'2 102b connected (link 2), Pn 12c and P'n. By connecting 102c (link n), the internet measurement system 10 and the performance measurement system 100 are connected by n links.

Therefore, the performance measurement system 100 simulates the Internet quality measurement system 10 by providing a virtual Internet network environment through the above connection (link).

3 is a diagram illustrating a connection between a virtual network element provided by the Internet quality measurement system and the performance measurement system according to FIG. 2, wherein the virtual network elements (eg, routers and hosts) 106a to 106f and the Internet quality are provided. Represents a virtual connection between the measurement system 10.

The performance measurement system 100 refers to the response information of the response information unit 106 through the destination Internet address of the ICMP packet received from the Internet quality measurement system 10, and transmits a response to the ICMP packet. To send.

Accordingly, the Internet quality measurement system 100 recognizes that there is a network element corresponding to the destination Internet address of the ICMP packet, and recognizes that the connection as shown in FIG. 3 exists.

4 is a flowchart illustrating an internet quality measurement process of the internet quality measurement system 10 according to FIG. 1, and illustrates a process of measuring quality of an internet network using an ICMP packet.

First, in order to transmit an ICMP packet according to the ICMP measurement period T defined in the measurement information, the ICMP packet transmission time t, which is an excess time from the ICMP packet transmission to the current time point, is initialized (S2).

The ICMP packet is transmitted to the network element corresponding to the destination Internet address by referring to the destination (network element) Internet address to which the ICMP packet is transmitted through the measurement information of the measurement information unit 16 (S4).

The ICMP response packet for the transmitted ICMP packet is received from the network element (S6).

An internet quality result is calculated through the ICMP response packet (S8), and it is determined whether the ICMP packet transmission time t is equal to the ICMP measurement period T (S10).

As a result of the determination, if the ICMP packet transmission time t and the ICMP measurement period are not the same, the process waits until the same (S12). If the determination is the same, the process proceeds to S2.

FIG. 5 is a flowchart illustrating a performance measuring method of the Internet quality measuring system according to FIG. 1, and illustrates a process of transmitting the ICMP response packet to the Internet quality measuring system 10 by the response information in the performance measuring system 100.

First, it is connected to the Internet quality measurement system 10 by FIG. 2 (S20), and receives an ICMP packet from the Internet quality measurement system 10 (S22).

It is determined whether the virtual Internet address corresponding to the destination Internet address of the ICMP packet exists in the response information (S24). If the determination result does not exist, a destination Internet address error message is transmitted to the Internet quality measurement system 10 ( S36).

As a result of the determination, if the corresponding destination Internet address exists, the response information is referred to through the destination Internet address (S26), and the system state of the virtual network element (destination) corresponding to the destination Internet address is indicated through the flag value of the response information. Check (S28).

It is determined whether the network element is currently being driven through the flag value (S30), and if it is not currently being driven, the ICMP response packet for the ICMP packet is not transmitted (S34).

As a result of the determination, if the network element is normally driven, the ICMP response packet for the ICMP packet is transmitted to the Internet quality measurement system 10 according to the response packet delay information and the response packet loss information of the response information (S32). .

As described above, according to the present invention, by providing a performance measurement system that can simulate the system for measuring the quality of the Internet network, before applying the Internet quality measurement system to the actual Internet network, the Internet through the simulation using a variety of variables The advantage is that the quality measurement system can be driven according to the design.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and changes should be considered to belong to the following claims. something to do.

Claims (4)

In the performance measurement device of the Internet quality measurement device for measuring the quality of the Internet network based on ICMP, Providing performance measurement means for providing a virtual network element to simulate the performance of the Internet quality measurement apparatus; The performance measuring means may include: a network connection part connected to a network, the network connection part including a network connection port and connected to the internet quality measuring device; A response information unit generating response information which is a system environment for the virtual network element; And And an ICMP response module unit for generating an ICMP response packet corresponding to the ICMP packet received from the Internet quality measuring device according to the response information, with reference to the response information of the response information unit. . The method of claim 1, The response information includes an internet address for the virtual network element; Flag information which is state information indicating whether the virtual network element is normally driven; Response packet delay information indicating numerical information on a degree of packet delay in the transmission of the ICMP response packet; And And response packet loss information indicating numerical information on the degree of loss of the ICMP response packet. In the performance measurement method of the Internet quality measurement device for measuring the quality of the Internet network based on ICMP, Providing a virtual network element and including a performance measurement method for simulating whether the Internet quality measurement method of the Internet quality measurement device is implemented according to the design contents; The performance measuring method may include a first step of receiving an ICMP packet from the Internet quality measuring device connected one-to-one with a performance measuring device; And And a second process of referring to the response information through a destination internet address of the ICMP packet, which is an internet address for the virtual network element, and generating and transmitting an ICMP response packet for the ICMP packet according to the referenced response information. A performance measuring method of an internet quality measuring apparatus, characterized in that. The method of claim 3, wherein Generating and transmitting a response packet in the second process, A virtual network element internet address retrieval step of retrieving whether an internet address of a virtual network element corresponding to a destination internet address of the ICMP packet exists; A flag information checking step of checking whether a virtual network element is currently displayed as being driven by referring to flag information of the virtual network element; An ICMP response packet transmission step of transmitting the ICMP response packet to the Internet quality measuring device according to packet delay information and packet loss information if flag information is displayed as being normally driven as a result of the flag information checking; And And if the flag information is not displayed as being normally driven, a non-responsive step of not sending an ICMP response packet for the ICMP packet to the Internet quality measuring apparatus. How to measure.