KR100722656B1 - Real-time service qulity providing system, media, and method thereof - Google Patents

Abstract

The present invention relates to a technique for maximizing efficient use of a subscriber line by providing a service quality desired by a subscriber by processing traffic based on a priority set by the subscriber.

To this end, the present invention comprises a first step of receiving QoS setting information from a subscriber terminal through a web; A second step of generating a set of instructions for performing a priority policy corresponding to the QoS setting information; And a third step of transmitting the instruction set to a router accommodated in the subscriber terminal, so that the router processes the traffic transmitted to the subscriber terminal based on the priority policy.

Description

REAL-TIME SERVICE QUALITY PROVIDING SYSTEM, MEDIA, AND METHOD THEREOF BACKGROUND OF THE INVENTION Field of the Invention [0001]

1 is an overall configuration diagram of a real-time service quality providing system according to an embodiment of the present invention;

FIG. 2 is a detailed configuration diagram of the policy server shown in FIG. 1. FIG.

FIG. 3 is a network topology configuration diagram applied to a real-time service quality providing system according to an embodiment of the present invention; FIG.

4 is a flowchart illustrating a method for providing real-time service quality according to an embodiment of the present invention.

The present invention relates to a system and method for providing real-time service quality, and more particularly, to a system and method for providing real-time service quality by processing traffic on the basis of a priority set by a subscriber so as to maximize efficient use of subscriber lines, Lt; / RTI >

As the penetration rate of the Internet increases and the communication technology develops remarkably, the services using the Internet are being developed in various ways, and the types of data transmitted on the internet are also diversified.

For this reason, while the amount of data transmitted on the Internet is increased, network resources are limited, so that carriers manage Quality of Service (QoS) for efficient network management.

Typically, a communication service provider sets a priority level (priprity) for each category by classifying traffic according to the tendency of traffic, and provides a service to guarantee service quality for each traffic. That is, a service quality service is provided by class defined by a telecommunications carrier.

On the other hand, the conventional service quality assurance service typically has the following form.

end. Defining a service class

I. Classify traffic based on defined classes

All. Perform QoS with IP precedence bit and DSCP definition

This is a service through prioritization of services by class classification. That is, the criterion of the traffic classification is the service to which the traffic belongs. This is less scalable to providing on-demand QoS services for subscribers.

Assuming that each subscriber is an enterprise customer, business traffic with high priority, which should be minimized in loss, is different for each enterprise customer. Therefore, if traffic is simply provided by the carrier class defined by the carrier without considering the above-mentioned circumstances, it can not sufficiently reflect the needs of the subscriber.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a QoS management server on the web, to provide a subscriber with priority over traffic in real time through the QoS management server, And to provide a real-time service quality providing system and method for allowing traffic processing to be performed in a real-time manner.

In order to achieve the above object, a real-time service quality providing system according to the present invention includes: a subscriber aggregation switch for aggregating a plurality of subscriber terminals; And a core router configured to establish a logical interface to the subscriber terminal through the subscriber aggregation switch to perform routing for traffic, the system comprising: a QoS setting unit configured to receive a QoS setting condition from a subscriber via the web, And a QoS management server for transmitting the command set to the core router and processing the traffic transmitted to the subscriber terminal according to the priority order, The QoS management server includes a web server for providing a QoS setting function and a QoS inquiry function to the subscriber terminal on the web.
According to an aspect of the present invention, there is provided a method for providing real-time service quality, the method comprising: receiving QoS setting information from a subscriber terminal via the web; A second step of generating a set of instructions for performing a priority policy corresponding to the QoS setting information; And a third step of transmitting the instruction set to a router accommodated in the subscriber terminal, so that the router processes the traffic transmitted to the subscriber terminal based on the priority policy.

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

The system for providing real-time service quality according to an embodiment of the present invention includes a subscriber aggregation switch 102 for aggregating a plurality of subscriber terminals 100 and 101, A core router 104 for transmitting the traffic output from the subscriber aggregation switch 102 to the communication network 200 and transmitting the traffic transmitted from the communication network 200 to the subscriber aggregation switch 102 in consideration of the priority, A QoS management server 300 that receives information for providing a QoS service to the subscriber connected to the core router 104 and receives a data transmission service based on the traffic priority specified by the subscriber, Respectively.

The network topology of the subscriber network in the present invention is an Ethernet-based network and has a structure that is connected to the subscriber terminals 100 and 101 through the core router 104 and the subscriber aggregation switch 102. At this time, a virtual LAN (VLAN) is allocated to each subscriber in the L2 network section from the core router 104 to each of the subscriber terminals 100 and 101, and two or more queues are provided to each VLAN It is a structure that can be.

In particular, the present invention provides a QoS service for downstream traffic entering each subscriber's network. At this time, the subscriber aggregation switch 9102 operates as an L2 switch, and the interface to the core router 104 is configured as a trunk interface.

The core router 104 may provide the processing result of the traffic transmitted through each queue to the SNMP for each assigned VLAN.

The core router 104 has an internal server capable of parsing a command set in XML format as well as a general CLI format for communication with the policy server 306 constituted in the QoS management server 300 exist. The internal server of the core router 104 interacts with the policy applier 201 in the policy server 306.

The core router 104 of the present invention analyzes the instruction set transmitted from the policy server 306 and processes the downstream traffic according to the priority and bandwidth indicated through the instruction set.

The QoS management server 300 according to the present invention includes a web server 302, a DB server 304, and a policy server 306, as shown in FIG.

The Web server 302 is a means for providing a QoS policy request for each subscriber and an interface for application of the QoS policy to the core router 104 by the manager of the communication service provider and the request status of each subscriber. In addition, it supports the status of priority traffic guaranteed by the applied result in real time. This is achieved by collecting the traffic throughput through the priority queue of the core router 104 and the general rank queue through the SNMP poller 309 of the policy server 306 and transmitting the QoS processing result to the subscriber terminal upon request of the subscriber on the web Is notified.

The DB server 304 stores the QoS policy request status of each subscriber and a history of policies applied to the core router 104, and stores authentication information, network block information, assigned VLAN information for each subscriber, And the connection port information of each subscriber line. The above information is referred to when a service provider applies a QoS policy to each subscriber. In addition, the result of communication with the router and all log of command execution are also stored.

The policy server 306 is configured to actually apply the content to the core router 104 by a communication service provider manager who has confirmed the request of the subscriber through the web service.

The policy server 306 includes a policy applier 307, an instruction generation unit 308, and an SNMP poller 309, as shown in Fig.

The policy applier 307 reads network block information, connection interface information, and the like of the subscriber stored in the DB server 304 and generates a command set corresponding to the priority policy through the command generation unit 308 And then transmits it to the core router 104 in which the subscriber is accommodated. The policy applier 307 communicates with the core router 104 to confirm the transmission state of the instruction set and in particular to form a secure channel using the core router 104 and SSH (Secure Shell) (Command Line Interface) type and XML type command set.

In addition, the SNMP poller 309 periodically collects the amount of traffic that has passed through the priority queue of the subscriber and the amount of traffic that has passed through the general rank queue in the core router 104, and stores the amount of traffic in the DB server 304 Function. The traffic quantity information stored in the DB server 304 is notified to the subscriber as a result of traffic priority processing when the subscriber requests it.

3 is a diagram illustrating a network topology between a core router 104 and subscriber terminals 100 and 101 applied to a real-time service quality providing system according to the present invention.

3, it is connected to the subscriber aggregation switch 102 via one physical interface 107 of the core router 104 and the physical interface 107 is divided into as many logical interfaces 105 and 106 as the number of subscribers . VLANs are assigned to each of the logical interfaces 105 and 106, and two or more independent queues are allocated to the VLAN. The queue is used as a queue for priority traffic and a queue for general traffic.

As another embodiment of the present invention, if the class of traffic that can be selected by the subscriber is not divided into two classes such as priority / general rank, and if the classes are divided into two or more classes, Can be configured with two or more queues.

Next, the real-time service quality providing method of the present invention will be described in detail with reference to a flowchart shown in FIG.

When a specific subscriber terminal connected to the web server 302 via the Web, for example, the A subscriber terminal 100, requests a log-in on the homepage provided through the web server 302, the web server 302 accesses the DB server 304, And performs authentication for the subscriber terminal 100 (S2).

When the subscriber authentication is successful and the QoS setting is requested from the subscriber (Yes in S4), the subscriber inputs the conditions for QoS setting (S6). Priority The conditions for setting the traffic are pair information of the service port and the protocol to be given priority, and the allowable percentage of the bandwidth to be always guaranteed. Here, the allowed percentage of the bandwidth means the bandwidth allocated to the priority among the entire bandwidths.

The web server 302 stores the inputted QoS setting information in the DB server 304. [

On the other hand, the policy server 306 inquires QoS setting information stored in the DB server 304, network block information, VLAN information, connection port information, and the like for the corresponding subscriber, and generates a command based on the inquired information, To generate a command set for applying the QoS corresponding to the priority order policy to the subscriber (S8). At this time, the command generation unit 308 generates the command set in the form of CLI (Command Line Interface) and XML, and transmits the command set to the policy applier 307 of the policy server. The instruction set includes pair information of protocol and port number corresponding to the priority, and bandwidth allocation information.

The policy applier 307 of the policy server 306 transmits the instruction set in the form of a secure channel with the core router 104 and the core router 104 analyzes the transmitted instruction set, And if the command set is normal, it transmits a reception completion signal to the policy applier 307 of the policy server 306.

The policy applier 307 of the policy server 306 receiving the reception completion signal stores the QoS setting log in the DB server 34 (S14).

On the other hand, if the reception completion signal is not received from the core router 104, the policy applier 307 of the policy server 306 stores the error log in the DB server 34 (S16).

On the other hand, if it is determined in step S4 that the QoS service setting is not requested from the subscriber (No in step S4) and the QoS inquiry is requested from the subscriber (Yes in step S20), the Web server 302 transmits, (S22), and notifies the subscriber of the QoS inquiry result (throughput of priority traffic, throughput of general rank traffic) using the inquired traffic throughput (S24).

The traffic information stored in the DB server 304 corresponds to the traffic throughput collected from the priority queue and the general rank queue of the core router 104 by the SNMP poller 309 of the policy server 306.

The web server 302 can check the throughput of the priority traffic and the throughput of the general rank traffic using the traffic throughput inquired by the DB server 304. [

In the embodiment of the present invention, the policy applier 307 of the policy server 306 reads the QoS condition information stored in the DB server 304 and generates the instruction set. However, The network manager connected to the web server 302 confirms the QoS condition information stored in the policy server 306 and transmits the confirmed QoS condition information to the policy server 306. The policy applier 307 of the policy server 306 May be generated.

Since the QoS management server 300 described above is configured on the web, the network administrator can access the web server 302 using the IP address or the URL of the web server 302, It is possible to check the result of QoS processing for each subscriber by inquiring of the subscriber station 304.

Accordingly, the present invention provides a command set for QoS requests of many subscribers automatically, thereby minimizing an administrator's mistake when making different settings for each subscriber. In addition, there is an advantage in that it is possible to set different QoS settings for each subscriber while reducing the work load of the manager.

As described above, the system and method for providing real-time service quality according to the embodiment of the present invention define traffic to be given priority by each subscriber (an entity customer) themselves, out of a uniform and integrated QoS service, It is possible to maximize the efficient use of the subscriber line by providing an interface that can define the bandwidth to which the corresponding traffic is to be guaranteed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. will be.

Claims (15)

A subscriber aggregation switch for aggregating a plurality of subscriber terminals; And a core router for establishing a logical interface to a subscriber terminal through the subscriber aggregation switch to perform routing for traffic, the system comprising: A QoS setting condition is received from a subscriber through the Web, a command set for performing a priority policy corresponding to the QoS setting condition is generated, and the command set is transmitted to the core router to transmit traffic to the subscriber terminal And a QoS management server for performing processing based on the priority, The QoS management server And a web server for providing a QoS setting function and a QoS inquiry function to the subscriber terminal on the web. The system according to claim 1, wherein the QoS management server A DB server for storing authentication information for the subscriber terminal, network information, QoS setting information according to the QoS setting function, QoS measurement information according to the QoS inquiry function, and the like; And Generates the command set corresponding to the priority policy using the network information stored in the DB server and the QoS setting information, transmits the command set to the core router, collects traffic processing results of the core router, And a policy server for providing the real-time quality of service. 3. The system of claim 2, wherein the subscriber station registers a protocol, a port number, and bandwidth allocation information for priority traffic when setting the QoS. 3. The method of claim 2, wherein the policy server A command generation unit for generating a command set for performing a policy; A policy applier for controlling the command generation unit to generate a command set corresponding to the QoS setting information stored in the DB server and transmitting the generated command set to the core router accommodated by the subscriber using the network information; And And an SNMP poller for periodically connecting to the core router to collect traffic throughput and storing the collected result in the DB server. 5. The method of claim 4, wherein the policy applier Wherein the core router communicates with the core router while forming a secure channel. 6. The method of claim 5, (SSH) is used in the real-time service quality providing system. 5. The apparatus of claim 4, wherein the command generation unit Wherein the command set is generated in a CLI (Command Line Interface) format. 5. The apparatus of claim 4, wherein the command generation unit Wherein the instruction set is generated in an extensible markup language (XML) format. The system according to claim 2, wherein the web server Wherein when the QoS inquiry is requested from the subscriber terminal, the result of the traffic processing for the subscriber is inquired from the DB server, the QoS processing result is generated based on the traffic processing result, and the result is notified to the subscriber terminal Service quality system. A first step of receiving QoS setting information from a subscriber terminal via the web; A second step of generating a set of instructions for performing a priority policy corresponding to the QoS setting information; And And a third step of transmitting the instruction set to a router accommodated by the subscriber terminal, and allowing the router to process traffic transmitted to the subscriber terminal based on the priority policy. The method of claim 10, further comprising a fourth step of collecting traffic throughput from the router using a simple network management protocol (SNMP). 12. The method of claim 11, If the QoS inquiry is requested from the subscriber terminal, calculating a priority traffic throughput and a general order traffic throughput for the subscriber terminal based on the collected traffic throughput, and notifying the subscriber terminal of the computed priority traffic throughput A method for providing real-time service quality. A first step of receiving QoS information for priority setting from a subscriber terminal through the web; A second step of generating a set of instructions for performing a priority policy corresponding to the QoS setting information; And And a third step of transmitting the command set to a router accommodated in the subscriber terminal, wherein the program providing real-time service quality is stored and readable by a computer. 14. The method of claim 13, A computer-readable recording medium storing a program for providing service quality in real time, further comprising a fourth step of collecting traffic throughput from the router using SNMP. 14. The method of claim 13, Calculating a priority traffic throughput and a generalized traffic throughput for the subscriber station based on the collected traffic throughput when the QoS inquiry is requested from the subscriber terminal, A computer-readable recording medium on which a program for providing a service quality is stored.

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