KR20030097251A - Traffic analyzing system and method therefor - Google Patents

Abstract

PURPOSE: A system and a method for analyzing a traffic are provided to divide the traffic collected in an ADSL(Asymmetric Digital Subscriber Line) network according to subscribers, map traffic information with subscriber information, store DSLAM(Digital Subscriber Line Access Multiplexer) and NAS(Network Access Server) facilities information in a database, and offer DSLAM and NAS facilities information. CONSTITUTION: A subscriber facilities table(102) stores facilities information assigned to a subscriber in an ADSL network. A VP/VC(Virtual Path/Virtual Call) mapping table(101) maps and stores subscriber-classified VC and VP information. A subscriber information mapping unit(103) extracts VC and VP information about a specific subscriber from the VP/VC mapping table(101), and maps associated subscriber information with a measured traffic by the subscriber facilities table(102). A traffic information mapping unit(105) extracts VC and VP information assigned in a DSLAM port of the specific subscriber from the VP/VC mapping table(101), and maps associated traffic information with the specific subscriber by information of a NAS connected with the corresponding DSLAM port.

Description

Traffic analyzing system and method therefor}

The present invention relates to a traffic analysis system and method, and to a traffic analysis system and method for mapping traffic information and subscriber information for each ADSL subscriber and providing an integrated inquiry interface for measuring traffic information of a specific subscriber. will be.

In general, in the field of information and communication, a lot of facility investment is being made in constructing a data network to provide data services to subscribers. Accordingly, in order to advance the traffic management function and to establish a comprehensive analysis system of traffic management criteria and traffic data, it is necessary to analyze traffic based on subscribers. Therefore, after measuring traffic for each subscriber in the currently used ADSL network, it is necessary to check subscriber information of the corresponding traffic. In other words, it is necessary to extract all the information needed to monitor the traffic type for specific ADSL subscribers or to analyze the subscriber information for the specific traffic.

However, such a monitoring method for traffic analysis has a problem that it takes a long time to analyze because many user tasks need to analyze and verify all information in order to analyze the traffic type. In addition, conventionally, the traffic information of the ADSL network is analyzed in terms of network operation and design, and thus there is a problem that comprehensive and systematic actual subscriber-oriented traffic analysis is not performed.

The present invention was created to solve the above problems, and separates the traffic collected in the ADSL network for each subscriber, connects it with subscriber information, maps traffic information, and makes a database of DSLAM and NAS facility information. The purpose is to make it available.

1 is a block diagram of the ADSL network for explaining a traffic analysis system according to the present invention.

2 is a block diagram of a traffic analysis system according to the present invention.

3 is a flowchart illustrating a subscriber information mapping process of the traffic analysis method according to the present invention;

4 is a flowchart illustrating a traffic information mapping process of the traffic analysis method according to the present invention;

5 is a flow chart showing a DSLAM facility information database construction process of the traffic analysis method according to the present invention.

6 is a flowchart illustrating a NAS facility information database construction process of the traffic analysis method according to the present invention;

The traffic analysis system of the present invention for achieving the above object, the subscriber facility table for storing the facility information assigned to the subscriber in the ADSL network, and the VP / VC mapping table for mapping and storing the virtual call and virtual path information for each subscriber And a subscriber information mapping unit and a VP / VC mapping table for extracting unique virtual call and virtual path information for a specific subscriber from the VP / VC mapping table and mapping subscriber information related to the measured traffic using the subscriber facility table. Extracts the virtual call and the virtual path information allocated to the DSLAM port of the specific subscriber, and uses a NAS information connected to the DSLAM port to map traffic information related to the specific subscriber.

In addition, the traffic analysis method of the present invention, the first step of mapping the facility information assigned to the subscriber in the ADSL network, the virtual call and virtual path information for each subscriber, and the unique virtual call and virtual path information for a specific subscriber Extracting the virtual call and virtual path information allocated to the DSLAM port of the specific subscriber and the second step of mapping the subscriber information related to the measured traffic, and using the NAS information connected to the corresponding DSLAM port, And a third step of mapping traffic information.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a block diagram of the ADSL network according to the present invention.

First, the data applied from the subscriber PC 1 in the subscriber's premises is output to the copper wire section through the modem 2, and the micro filter 4 separates the audio signal and the data signal applied from the telephone 3. do. The DSLAM (Digital Subscriber Line Access Multiplexer) of the operating station 5 is an ADSL modem rack that directly connects the contractor line to aggregate subscriber line traffic. Information about the facility allocated to the subscriber in the DSLAM 5 is stored in the element management system (EMS). The NAS (Network Access Server) connects the DSLAM 5 and the Internet backbone network section, and performs subscriber protocol termination, subscriber authentication, and IP address assignment. In addition, the traffic of all subscribers belonging to the DSLAM 5 is aggregated into one Synchronous Transport Mode level 1 (STM-1) interface. Information about the NAS 7 can be queried by the EMS 9 through a Giga switch 8. In this way, the NAS 7 handles the traffic of multiple DSLAM 5 devices through multiple STM-1 interfaces. In addition, the router 10 is connected to the traffic analysis system 100 through the cornet network 11 and the internal network 12.

In particular, since the connection between the DSLAM 5 and the NAS 7 uses an Asynchronous Transfer Mode (ATM) network, the VC (ATM) of the ATM is connected between one DSLAM 5 and one STM-1 interface. Connections are made through virtual calls and virtual paths. That is, each subscriber connected to one DSLAM 5 has its own VP and VC and communicates using the corresponding STM-1 interface.

Accordingly, traffic information and subscriber information collected through the DSLAM 5 and the NAS 7 are transmitted to the traffic analysis system 100 through the internal network 12 using the Simple Network Management Protocol (SNMP). Is sent. Here, traffic measurement of the ADSL subscriber is made for each VP and VC for the STM-1 interface of the NAS 7. Since the traffic analysis system 100 measures the traffic for each STM-1 interface, it is possible to measure the traffic information for all subscribers connected to the DSLAM 5 connected to the corresponding interface.

2 is a block diagram of a traffic analysis system 100 of the present invention.

2, the present invention provides a VP / VC mapping table 101, a subscriber facility table 102, a subscriber information mapping unit 103, a subscriber information database 104, and a traffic information mapping unit 105. ), A traffic information database 106, a DSLAM facility information inquiry module 107, a DSLAM facility information database 108, a NAS facility information inquiry module 109, and a NAS facility information database 110. It consists of.

In the ADSL network, subscriber information stores subscriber information and facility information assigned to subscribers. The subscriber facility table 102, which stores such facility information, stores port information of the DSLAM 5 and the DSLAM 5 of the telephone station for the ADSL service. In addition, the VP / VC mapping table 101 maps and stores subscriber information extracted for each VP and VC. Therefore, the subscriber and traffic information can be mapped according to the information stored in the VP / VC mapping table 101 and the subscriber facility table 102, and the DSLAM and NAS facility information can be inquired and made into a database.

Referring to the operation of the present invention having such a configuration as follows.

The traffic analysis method according to the present invention is classified into four processes, which are divided into subscriber information mapping process related to traffic, traffic information mapping process related to subscriber, facility information construction process of DSLAM, and facility information construction process of NAS. Lose.

First, a subscriber information mapping process related to traffic will be described with reference to FIG. 3.

The subscriber information mapping unit 103 checks the NAS interface ID of the measured traffic in relation to the specific VP and VC. (Step 100) Then, the subscriber information mapping unit 103 confirms the IP address of the DSLAM connected to the corresponding NAS interface (step 110). After checking the DSLAM ID associated with the IP (step 120), the manufacturer and the version of the DSLAM are checked (step 130). Next, information about the port for the DSLAM and information stored in the VP / VC mapping table 101 is checked. (Step 140) As a result of checking the information of the VP / VC mapping table 101, it is determined whether or not there is a DSLAM port for the VP / VC. (Step 150) If the DSLAM port exists, the subscriber The subscriber information is confirmed using the facility table 102 (step 170). If the DSLAM port does not exist, error processing is performed (step 160). Also, the subscriber information mapping unit 103 is mapped. Subscriber information to subscriber information database ( 104).

Meanwhile, a process of mapping traffic information related to a subscriber will be described with reference to FIG. 4.

The traffic information mapping unit 105 checks the DSLAM port and the DSLAM ID of the specific subscriber (step 200). After confirming the manufacturer and version of the DSLAM, the VP assigned to the corresponding port through the VP / VC mapping table 101 is checked. Check the / VC value (step 210). Next, check the ID and interface ID of the NAS connected to the DSLAM of the corresponding ID. (Step 220) Next, the NAS ID, the interface ID, and the VP / VC value are used. The traffic information is collected (step 230). Then, the collected traffic is analyzed to calculate information for each subscriber / product / specific region. (Step 240) In addition, the traffic information mapping unit 105 receives the mapped traffic information. Stored in the traffic information database 106.

Meanwhile, a process of constructing facility information of DSLAM will be described with reference to FIG. 5.

The DSLAM facility information inquiry module 107 selects an EMS of a specific DSLAM for constructing facility information (step 300). Then, the device list of the corresponding EMS is searched (step 310), and whether the corresponding device is the last device. (Step 320) If the device is not the last device, the list of racks, cards, cards, and ports connected to the device is inquired. (Step 330) In addition, the DSLAM facility information inquiry module 107 The inquired DSLAM facility information is stored in the DSLAM facility information database 108.

The facility information building process of the NAS will be described with reference to FIG. 6 as follows.

The NAS facility information inquiry module 109 selects an EMS of a specific NAS for building facility information (step 400). Then, the device list of the corresponding EMS is inquired (410), and whether the corresponding device is the last device. In operation 420, if the corresponding device is not the last device, a list of interface cards connected to the corresponding device is queried (step 430). In addition, the NAS facility information inquiry module 109 retrieves the requested NAS facility information. It is stored in the NAS facility information database (110).

As described above, the present invention maps the traffic information and subscriber information of the ADSL subscriber, and makes a database of these information to obtain analysis and statistics by subscriber / region / day / day / daily / specific period / product of the ADSL traffic. do. In addition, the present invention provides an effect of estimating the usage tendency of a subscriber by estimating traffic for a particular subscriber.

Claims (11)

A subscriber facility table storing facility information allocated to subscribers in an ADSL network; A VP / VC mapping table for mapping and storing virtual call and virtual path information for each subscriber; A subscriber information mapping unit for extracting unique virtual call and virtual path information for a specific subscriber from the VP / VC mapping table and mapping subscriber information related to the measured traffic using the subscriber facility table; And A traffic information mapping unit for extracting virtual call and virtual path information allocated to a DSLAM port of a specific subscriber from the VP / VC mapping table and mapping traffic information related to the specific subscriber using NAS information connected to the corresponding DSLAM port. Traffic analysis system, characterized in that provided. The method of claim 1, A subscriber information database storing subscriber information mapped by the subscriber information mapping unit; And And a traffic information database for storing the traffic information mapped by the traffic information mapping unit. The method of claim 1, A DSLAM facility information inquiry module for querying facility information about a DSLAM; And And a NAS facility information inquiry module for inquiring facility information about the NAS. The method of claim 3, wherein A DSLAM facility information database that stores facility information about the DSLAM; And And a NAS facility information database for storing facility information about the NAS. A first step of mapping facility information allocated to subscribers in an ADSL network and virtual call and virtual path information for each subscriber; Extracting unique virtual call and virtual path information for a specific subscriber and mapping subscriber information related to the measured traffic; And And extracting virtual call and virtual path information allocated to the DSLAM port of the specific subscriber and mapping traffic information related to the specific subscriber using NAS information connected to the corresponding DSLAM port. Traffic analysis method. The method of claim 5, wherein the second step Identifying a NAS interface ID of the measured traffic in relation to the specific virtual call and the virtual path information; Checking the IP address of the DSLAM connected to the NAS interface and the ID of the DSLAM associated with the IP address; Identifying the manufacturer and version of the DSLAM and the port for the DSLAM; Determining whether a DSLAM port exists for the virtual call and the virtual path in the VP / VC mapping table; And And if the DSLAM port exists, verifying subscriber information by using a subscriber facility table. The method of claim 5, wherein the third step Checking the IDLA of the specific subscriber and the DSLAM port; Checking a manufacturer and a version of the DSLAM and checking a value of a virtual path and a virtual call assigned to a corresponding port; Checking an ID and an interface ID of the NAS connected to the DSLAM of the corresponding ID; And And collecting the traffic information by using the NAS ID, the interface ID, the virtual path, and the value of the virtual call. The method of claim 7, wherein And analyzing the collected traffic information to calculate information for each subscriber / product / specific region. The method of claim 5, A fourth step of inquiring and storing facility information about the NAS; And And a fifth step of querying and storing facility information about the DSLAM. The method of claim 9, wherein the fourth step Selecting an EMS of a specific DSLAM for establishing facility information; Querying a list of equipment of the corresponding EMS to determine whether the equipment is the last equipment; And If the corresponding device is not the last device, the traffic analysis method comprising the step of querying the rack, self, card, port-specific list connected to the device. The method of claim 9, wherein the fifth step Selecting an EMS of a specific NAS for building facility information; Querying a list of equipment of the corresponding EMS to determine whether the equipment is the last equipment; And If the corresponding device is not the last device, the traffic analysis method comprising the step of querying the list per interface card connected to the device.