KR20100131145A - Method and system for multi media traffic measurement on ip network - Google Patents

Abstract

PURPOSE: A method and a system for multimedia traffic measurement on IP network are provided to easily grasp the present state of use of the multimedia traffic. CONSTITUTION: An IP gathering unit(110) collects an IP list of a multimedia server operated by a circuit business carrier and IP list of the soft switch operated by the circuit business carrier. The IP gathering unit collects the IP list of the multimedia server operated by the service provider. A flow information collecting unit(120) collects the flow information in the network infrastructure of the circuit business carrier. An IP list identification unit(140) distinguishes the IP list which includes the IP in the flow information among the collected IP lists.

Description

Method and system for measuring multimedia traffic in IP network {Method and System For multi media traffic measurement on IP network}

The present invention relates to a method and system for measuring multimedia traffic in an IP network. More specifically, the present invention relates to a method and system for measuring IPTV and VoIP traffic in an Internet network. Specifically, a third party of a corporate customer for marketing purposes in terms of measuring the application traffic flowing on a circuit of a corporate customer using an Internet-dedicated line and circuit operators. A method and system for measuring multimedia traffic in an IP network for determining whether an application service is used.

In general, there are various techniques for measuring traffic in a network, such as using a dedicated measuring device such as a probe, or measuring using SNMP or flow information provided by a router.

In this case, the method of using a dedicated measuring device such as a probe is to install a tapping device for each interface to extract the flowing traffic to the measuring device and collect / analyze the traffic. It collects by using Simple Network Management Protocol (SNMP) and flow creation characteristics.

In the former case, there is a cost and administrative difficulty in installing a dedicated measuring device, and a wide range of investments are inevitable for making a nationwide measurement. In the latter case, it is easy to measure nationwide traffic, but it may overload infrastructure equipment. There are disadvantages.

Conventionally, the traffic analysis report is provided to the enterprise customers by analyzing the amount of traffic or the service usage status per port using SNMP and flow information that can be obtained from the network infrastructure equipment for measuring the traffic flowing on the enterprise customer line.

However, in the case of multimedia traffic such as IPTV and VoIP, simply collecting flows does not enable analysis. That is, if only the protocol and port of the collected flow are used to determine whether this is VoIP traffic or IPTV traffic, there is a high possibility of error.

In addition, when a corporate customer who is a user of a multimedia service uses a multimedia service of another service provider instead of a service provided by a line service provider, it is difficult to grasp the use of multimedia traffic.

In order to solve the above problems, the present invention accurately classifies the multimedia traffic flowing on the line of the enterprise customer, and can easily grasp the usage status of the multimedia traffic even when the multimedia service user uses the multimedia service of another service provider. It is an object of the present invention to provide a method and system for measuring multimedia traffic in an IP network.

In order to achieve the above object, the present invention provides a method for providing an Internet line and a first IP list, which is a set of IPs of a multimedia server operated by a line operator providing a multimedia service, and an Internet line provided by the line operator. Obtaining a second IP list that is a set of IPs of a multimedia server operated by another service provider providing a multimedia service; (b) obtaining an origination and destination IP included in flow information in the network infrastructure of the circuit operator; (c) determining whether the obtained originating IP belongs to one of the first IP list and the second IP list; And (d) identifying a multimedia service provider managing the IP list derived from the determination result among the line service provider and the other service provider.

In this case, when the type of the multimedia service to be checked is VoIP, collecting the IP list from the VoIP authentication server which is the multimedia server of the other service provider in the step (a) is the VoIP of the other service provider installed in the relay node. Accessing the VoIP authentication server of the other service provider using a terminal; And collecting an IP list from the VoIP authentication server of the other service provider.

In addition, when the type of the multimedia service to be checked is IPTV, collecting the IP list from the IPTV server which is the multimedia server of the other service provider in the step (a), the IPTV terminal of the other service provider installed in the relay node Connecting a session with the IPTV server of the other service provider and capturing a packet of the session; And collecting an IP list of the other service provider IPTV server from the captured packet.

In addition, when the type of multimedia service to be checked is VoIP, a third list, which is a set of IPs collected from the soft switch of the circuit operator in step (a), is further obtained, and in step (c), the obtained list is obtained. It is characterized by determining whether the originating IP belongs to the first IP list, the second IP list and the third IP list.

In addition, when it is determined that the originating IP is included in the third IP list, the multimedia service is determined to be VoIP.

In addition, if the protocol used at this time is a Session Initiation Protocol, the flow including the origination and destination IP is characterized in that it is determined that the VoIP attempt packet.

In addition, if it is determined in step (d) that the provider of the multimedia service is the other service provider, the user of the multimedia service is determined to use the VoIP service of the other service provider.

In addition, if it is determined in step (d) that the provider of the multimedia service is the other service provider, the user of the multimedia service is determined to use the IPTV service of the other service provider.

Meanwhile, the present invention provides a separate multimedia service through an IP line of a multimedia server operated by a line operator providing an internet line and a multimedia service, an IP list of a soft switch operated by the line operator, and an internet line provided by the line operator. An IP collector for collecting an IP list of a multimedia server operated by another service provider providing a service provider; A flow information collecting unit collecting flow information in the network infrastructure of the circuit operator; And an IP list identification unit for identifying an IP list including an originating IP included in the flow information among the collected IP lists.

Here, the multimedia traffic measurement system may further include a protocol determination unit that determines whether the protocol used is a session initiation protocol.

According to the present invention, it is possible to easily derive the multimedia traffic by reclassifying the flow packets collected by the ISP. Thus, when there is a demand for the measurement of VoIP or IPTV traffic by the multimedia service user, the traffic usage analysis analysis report for the service is easily generated. Can provide. In addition, there is an advantage that can easily obtain the basic information for marketing strategy establishment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, detailed description is abbreviate | omitted when it is judged that it may obscure the summary of this invention. In addition, preferred embodiments of the present invention will be described below, but the technical idea of the present invention may be implemented by those skilled in the art without being limited or limited thereto.

1 is a block diagram of a multimedia traffic measurement system according to a preferred embodiment of the present invention, and FIG. 2 is a flowchart illustrating a multimedia traffic measurement method according to a preferred embodiment of the present invention.

Hereinafter, the multimedia traffic measuring system 100 and the multimedia traffic measuring method using the same will be described with reference to FIGS. 1 and 2.

The multimedia traffic measurement system 100 of the present invention includes an IP collector 110, a flow information collector 120, and an IP list identifier 140.

The IP collecting unit 110 performs a separate multimedia service through a first IP list, which is a set of IPs collected from the multimedia server 10 of a circuit provider providing an internet line and a multimedia service, and an internet line provided by the line provider. A second IP list, which is a set of IPs collected by the multimedia server 20 of another service provider, is obtained (S100).

The flow information collecting unit 120 collects flow information from the network infrastructure 30 of the circuit operator (S110). The network infrastructure 30 may be a core router or the like. In addition, the flow information is composed of five fields: source IP, destination IP, protocol, source port, and destination port. The flow information collecting unit 120 collects flow packets generated by the core router.

The IP list identification unit 140 identifies where the originating IP of the flow information is included in the first IP list and the second IP list (S120). In more detail, the IP list identification unit 140 is a multimedia server 20 of another service provider that provides a multimedia service and a first IP list collected by the multimedia server 10 of the circuit operator by the IP collector 110. From among the second IP list collected in the) select the IP list to which the originating IP collected by the flow information collecting unit 120 belongs. By doing so, the IP list identification unit 140 can identify the provider of the multimedia service provided from the multimedia server which is the source of the selected IP list among the line service provider and the other service providers (S130). That is, the user of the multimedia service can determine that he or she is using the multimedia service on the service provider side holding the multimedia server including the selected IP list.

Meanwhile, the multimedia traffic measurement system 100 according to the preferred embodiment of the present invention is a session initiation protocol which is a signaling protocol for VoIP or multimedia communication in which a protocol used serves to set up, modify, and release a multimedia session or call. It may further include a protocol determination unit 130 to determine whether or not (SIP: Session Initiation Protocol). The protocol determination unit 130 will be described in detail later.

The present invention describes a method for classifying traffic related to VoIP or IPTV service among the flow traffic related to multimedia services collected from a network to determine the usage status of the corresponding multimedia service. The method of classifying traffic is described, but first, a method for classifying traffic of VoIP service to grasp the usage status of VoIP service will be described.

3 is a diagram illustrating a network structure for providing a VoIP service.

First, the VoIP traffic measurement method will be described with reference to FIG. 3.

The following assumptions can be considered when measuring traffic for VoIP services. That is, the case where the VoIP service which is one of the Internet line and the multimedia service is used by the same carrier, and the case where the Internet line and the VoIP service are used by different operators.

First, the former will explain how to use VoIP service and how to determine its size.

VoIP service usage and size can be determined by measuring the number of VoIP call attempts and the number of VoIP terminals in the enterprise.

In general, a network configuration for a VoIP service includes an interconnection relay soft switch 200 for interconnection, a call transfer unit 202 such as IPPBX (Internet Protocol Private Branch Exchange) for number matching and call transfer, and a call for call connection. It is composed of a connection unit 204, it may further include an IMS (IP Multimedia System, not shown) for accepting Internet telephony service. These are the equipment for VoIP existing on the line operator side, and VoIP calls are made with such a network configuration.

If the communication between the terminal A (210) and the terminal B (212) is a call connection through the call transfer unit 202 and the call connection unit 204. After the call connection is made, direct data communication is performed between the terminal A 210 and the terminal B 212. In this case, data is moved between two terminals through IP routing. That is, since the control flow and the data flow are different, it is difficult to accurately measure the exact traffic volume between the terminal A 210 and the terminal B 212. However, the number of VoIP call views can be determined through VoIP traffic flowing into and out of the core router 220. This makes it possible to determine whether a company uses VoIP service.

On the other hand, if the type of multimedia service is VoIP, another method of identifying the provider of the multimedia service may be to collect a third IP list, which is a set of IPs obtained from the circuit operator's softswitch, and identify the service provider using the same. This is described below.

First, in step S100, the IP collector 110 collects the first IP list and the second IP list from the multimedia server 10 of the circuit operator and the multimedia server 20 of another service provider, respectively. The above-mentioned third IP list is collected from the operating soft switch.

Then, after going through step S110, the IP list identification unit 140 collects the first IP list collected by the multimedia server 10 of the line operator and the multimedia server 20 of the other service provider in step S120. 2 From the IP list and the third IP list collected by the soft switch selects an IP list including the source IP of the flow information collected in step S110.

Thereafter, as in step S130, it is identified from the line provider and other service providers who provides the VoIP service used by the multimedia user.

At this time, the protocol determining unit 130 determines whether the incoming and outgoing IP of the flow information is included in the IP list collected from the soft switch, and if it is determined that the protocol used by the protocol determining unit 130 is SIP, The flow including the originating IP can be clearly determined to be a VoIP challenge packet.

As described above, when the user of the VoIP service uses the line operator's line and the VoIP service also uses the service of the same line operator, it is possible to easily determine whether the VoIP service is used and the scale.

On the other hand, if the line operator and the VoIP service provider are the same, the IP list can be easily obtained by collecting IP from the multimedia server 10 of the line operator.

By the way, if the user of the multimedia service uses an Internet line of the line service provider and the multimedia service uses another service provider other than the service of the line service provider, the IP of the multimedia server 20 of the other service provider is obtained. It is necessary to understand in advance to understand the usage of multimedia services.

First, let's take a look at characteristics of using VoIP service.

If it is assumed that a call is made from ISP (Internet Service Provider) 1 to ISP 2, the destination IP of the VoIP packet will be set to IP belonging to ISP 2 and transmitted. In this case, authentication for the terminal must be prioritized before establishing a call between ISP1 and ISP2. Therefore, when the outgoing request packet is transmitted, the destination IP becomes the authentication server IP of ISP2. Therefore, if the service provider knows the IP of the VoIP authentication server, the service user can easily understand that the service provider is using the multimedia service of the other service provider.

In this way, the authentication is first performed for the VoIP voice call, and the call destination IP of the flow packet collected by the core router 220 is included in the IP list collected by the VoIP service server of another service provider by using the feature of making a call. If it is, the packet can be seen that the packet sent by the user using the VoIP of other service providers. If so, it is necessary to grasp the IP of the third-party VoIP authentication server.

In order to collect the IP of the third-party VoIP authentication server, the VoIP terminal 40 of another service provider should be installed in the relay node of the whole country. The VoIP terminal 40 installed in the relay node may be used by other service providers. Perform a connection to the VoIP authentication server (S200), and monitor the incoming IP in the city at the time of connection. Then, the IP collecting unit 110 collects the IP list of the VoIP authentication server monitored by the terminal 40 (S210). In other words, it uses the feature of transmitting an authentication packet from the user to the VoIP authentication server for use of the VoIP service.

Here, if the list of IPs collected from VoIP service servers of other service providers is A _DB , the number of potential VoIP terminals is determined through the number of outgoing IPs in the enterprise after the identification of the A _DB , especially when the user is a corporate customer. You can see the scale.

5 is a diagram illustrating a network configuration for measuring IPTV traffic in an Internet network, and FIG. 6 is a flowchart illustrating a process of collecting an IP list from an IPTV server of another service provider.

Hereinafter, a method of classifying IPTV traffic among multimedia service related traffic collected in a network will be described with reference to FIGS. 5 and 6.

In order to measure IPTV traffic, the IPTV service user 300 should be connected to the Internet dedicated line as shown in FIG. 6. That is, the IPTV service user 300 is connected to the aggregation switch 302 of the ISP and the aggregation switch 302 is connected to the core router 304 to provide a dedicated line service. The network-based IPTV traffic is to collect and analyze the flow packets generated and generated by the core router 304. When the service user 300 uses the IPTV service, if the service is received from the ISP dedicated service server 310 or the IPTV service user 300 is a corporate customer, the service user 300 constructs its own service server 312 for internal broadcasting purposes. If you provide.

In the former case, it is possible to find out the source IP from the ISP dedicated service server 310 and the IP of the corresponding line by collecting the flow packet in the core router 304 to determine how much traffic flows from the corresponding IPTV server to the incoming call. In addition, in the latter case, the source IP of the server may be the IP of the own service server 312, so that the flow packet may be detected by filtering the flow packet.

The method described above can be classified and analyzed on the assumption that the IP list of the corresponding IPTV service servers 310 and 312 is known in advance. However, if the service user uses the service provider's line while the Internet line is used by the service provider's line, traffic analysis is possible only when the service user grasps information on the multimedia server 20 of the other service provider. In this case, IP information of the multimedia server 20 of another service provider may be obtained according to the process illustrated in FIG. 7.

To this end, first, the IPTV terminal 40 of each service provider is installed in the relay node, using the IPTV terminal 40 installed in the relay node, the session with the IPTV server which is the multimedia server 20 of another service provider. Connect and capture all packets from the corresponding line (S300).

After that, when the IPTV terminal opens the initial session and downloads data, the IP collector 110 finds and stores the source IP of the corresponding packet (S310).

Here, the IP list of IPs collected from other service provider's IPTV servers is called S _DB . Then, as described above, the IP list identification unit 140 determines whether the originating IP of the flow packet collected by the core router is included in the S _DB , and if the originating IP of the flow packet is included in the S _DB , Service users can see that they are using IPTV services of other service providers.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1 is a block diagram of a multimedia traffic measurement system according to a preferred embodiment of the present invention.

2 is a flowchart illustrating a method for measuring multimedia traffic according to a preferred embodiment of the present invention.

3 is a diagram illustrating a network structure for providing a VoIP service.

4 is a flowchart illustrating a process of collecting IP from a VoIP authentication server of another service provider.

5 is a diagram illustrating a network configuration for measuring IPTV traffic in an Internet network.

6 is a flowchart illustrating a process of collecting IP from an IPTV server of another service provider.

<Explanation of symbols for the main parts of the drawings>

100: multimedia traffic measurement system

110: IP collector 120: flow information collector

130: protocol determination unit 140: IP list identification unit

Claims (10)

(a) Operated by a first IP list, which is a set of IPs of a multimedia server operated by a line operator providing an internet line and a multimedia service, and another service provider providing a separate multimedia service through an internet line provided by the line provider. Obtaining a second IP list that is a set of IPs of the multimedia server; (b) obtaining an origination and destination IP included in flow information in the network infrastructure of the circuit operator; (c) determining whether an originating IP among the obtained called IPs belongs to the first IP list and the second IP list; And and (d) identifying a multimedia service provider managing the IP list derived from the determination result among the line service provider and the other service service provider. The method of claim 1, If the type of multimedia service to be checked is VoIP, collecting the IP list from the VoIP authentication server which is the multimedia server of the other service provider in step (a) Accessing the VoIP authentication server of the other service provider by using the VoIP terminal of the other service provider installed in the relay node; And And collecting an IP list from the VoIP authentication server of the other service provider. The method of claim 1, When the type of multimedia service to be checked is IPTV, in step (a), collecting the IP list from the IPTV server which is the multimedia server of the other service provider Connecting a session with an IPTV server of another service provider using an IPTV terminal of the other service provider installed in a relay node and capturing a packet of the session; And And collecting the IP list of the other service provider IPTV server from the captured packet. The method of claim 1, If the type of multimedia service you want to check is VoIP, Further obtaining a third IP list, which is a set of IPs collected from the soft switch of the circuit operator, In the step (c), it is determined whether the obtained originating IP belongs to one of the first IP list, the second IP list, and the third IP list. The method of claim 4, wherein And if it is determined that the originating IP is included in the third IP list, the multimedia service is determined to be VoIP. The method of claim 5, If the protocol used is a Session Initiation Protocol, the flow including the originating IP is determined to be a VoIP attempt packet. The method of claim 2, If it is determined in step (d) that the provider of the multimedia service is the other service provider, the user of the multimedia service determines that the VoIP service of the other service provider is used. The method of claim 3, wherein If it is determined in step (d) that the provider of the multimedia service is the other service provider, the user of the multimedia service is determined to use the IPTV service of the other service provider. IP list of multimedia server operated by line operator providing Internet line and multimedia service, IP list of softswitch operated by line operator and other service providing separate multimedia service through internet line provided by line operator An IP collector configured to collect an IP list of the multimedia server operated by the service provider; A flow information collecting unit collecting flow information in the network infrastructure of the circuit operator; And And an IP list identification unit for identifying an IP list including an originating IP included in the flow information among the collected IP lists. The method of claim 9, The multimedia traffic measurement system And a protocol determination unit for determining whether the protocol being used is a session initiation protocol.

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