KR100415583B1 - Service Management System and Method for supporting Differentiated Service on the Internet - Google Patents

Abstract

The present invention relates to a service management system and a differential service providing method for providing a differential service on the Internet by improving the existing Internet to provide only the best service. In order to receive the priority service, the host may access the service management system in the corresponding Internet service provider network and receive the priority service by being assigned an IP address corresponding to the priority. In order to provide a priority service, an Internet service provider can do this by assigning a specific IP address range to a specific service and setting the access router to provide a priority service for this address. In addition, the host using the priority service has to pay more than the host using the basic service. The charging method is calculated in proportion to the amount of bandwidth of the link allocated to the priority service based on the cost of the basic service.

Description

Service Management System and Method for Supporting Differentiated Service on the Internet

The present invention relates to a service management system for providing a differential service on the Internet and a service method thereof, and in particular, to a service management system capable of providing differentiation of Internet service quality based on a differential service (hereinafter referred to as Diffserv) and its service. It relates to a service method.

With the proliferation of the web over the last few years, the number of users has exploded, and as the multimedia services such as video conferencing, virtual reality, virtual university, video-on-demand, as well as the existing telephone, radio, and TV services are provided through the Internet, It's exploding. To accommodate the development and requirements of these applications, networks are evolving while absorbing high-speed link technologies and various quality of service guarantees. The Internet, a representative wired data network, is developing into a high-speed wired data network to improve the quality of service (QoS) in order to improve current limited functions and services.

As mentioned earlier, the main applications in the future Internet data network are the World Wide Web (WWW) application, which currently accounts for most of the traffic on the Internet, and the increasing number of video conferencing, on-demand media services, Internet broadcasting, and media distribution services. Because of the many real-time applications that are latency sensitive and require high bandwidth, such as multimedia stream applications, the best services of existing Internet protocols alone can support enhanced QoS such as high bandwidth, reduced packet queuing latency, and low packet loss. You need a service other than the best service.

In response to these demands, the IETF is now standardizing methods for ensuring quality of service on the Internet. The representative ones are Integrated Service (IntServ) and Differentiated Service (Diffserv). The integrated service allocates resources to network nodes using a resource reservation protocol (RSVP), which is a signaling protocol. However, since the integrated service model allocates resources to specific packet streams or flows, information on the streams and flows must be maintained at each node. In particular, in the case of the Internet backbone router, the integrated service model has a scalability problem when the transmission speed is high and the flow is large. In contrast, the differential service model does not manage traffic on a flow-by-stream basis, and processes packets by classifying them into classes (sets), so that no scalability problem such as an integrated service model occurs.

The differential service is an improvement of the IPv4 priority marking service defined in RFC791, and is based on the application of well-defined services to provide various quality of service on the Internet. . To this end, differential services predefine a set of useful end-to-end services that may be required by an application program that uses a particular quality of service. This is called PHB (Per Hop Behavior). Currently, the IETF defines only basic best-practice services and those with a few priorities. In the differentiated service network, since an input packet is processed according to a contracted service, a router in the network does not need to maintain state or resource reservation information for each flow.

Differential services are scalable, and even though they are already implemented in several commercial routers, they are not currently available for commercial use.

Accordingly, an object of the present invention is to provide a service management system and a service method thereof required for an Internet service provider to provide a differential service to an Internet user.

1 is a diagram illustrating a network model capable of general differential service.

2 is a diagram showing a network model capable of a differential service proposed in the present invention.

3 is a diagram showing the structure of a service management system according to the present invention;

4 is a process flowchart when a service management system according to the present invention receives a service request from a host.

5 is a process flowchart when the service management system according to the present invention receives a service termination request from a host.

Explanation of symbols on the main parts of the drawings

31: communication module with the host 32: service allocation determination module

33: DHCP server module 34: Database (DB)

35: router and communication module

According to an aspect of the present invention, there is provided a management system comprising: a host and communication means for authenticating user information input from a host and transmitting an assigned service Internet Protocol (IP) address to the host;

Service determination means for guiding a type of service to the host and receiving a response from the host;

According to the type of the service determined by the service determination means, one of a predetermined range of IP addresses are assigned and transmitted to the host through the communication means with the host, the service usage time and the assigned IP address, the IP allocation means for recording the identifier information of the host in the database; And

A router and communication means for communicating with a router, wherein if the IP address assigned by the IP assignment means is not assigned to receive a service from the router, the IP assignment means is connected to the router through the router and the communication means. It is characterized by assigning a specific IP address to a specific service.

In addition, the differential service providing method according to the present invention, in the method for providing a differential service on the Internet,

A first step of performing user authentication when a user accesses a service;

A second step of informing a user of a service type and receiving a response after performing user authentication;

If a user selects a priority service, allocating one of a specific range of IP addresses assigned to the priority service;

If the user selects a basic service, allocating one of IP addresses of a specific range different from IP addresses of a range allocated to the priority service assigned to the basic service;

A fifth step of recording the allocated IP address, time and user information in a database; And

And a sixth step of setting an IP address assigned to the priority service to the router as a priority service so as to provide a priority service, and transmitting the assigned IP address to the user computer.

In addition, the present invention, the computer connected to the Internet, when the user accesses the service, a first function for performing user authentication;

A second function of notifying a user of a service type and receiving a response after performing user authentication;

A third function of allocating one of a specific range of IP addresses assigned to the priority service when the user selects the priority service;

A fourth function of allocating one of IP addresses of a specific range different from IP addresses of a range allocated to the priority service assigned to the basic service when the user selects a basic service;

A fifth function of recording the allocated IP address, time and user information in a database;

A sixth function of setting an IP address assigned to the priority service as a priority service in a router to provide a priority service, and transmitting the assigned IP address to the user computer; And

When the service termination is received from the user computer, a program for executing the seventh function of recovering the allocated IP address, calculating billing based on the received service time and service type, and storing the billing information in the database. Provide a computer readable recording medium having recorded thereon.

In the present invention, a module that accepts the initial connection from the communication network, a module for determining whether to connect the host as a basic service or a priority service, a DHCP server module for assigning an IP address according to the desired service to the host, When the service is provided by the rank service, a module for setting the access router and a storage module for recording the start and end time of the service and the user information are provided.

In the module that accepts the initial connection from the network, the connection is made through the user ID and password. For hosts that do not use a static IP address, the DHCP server assigns an IP. DHCP server has IP address storage for priority service and basic service, and assigns priority service IP address to host who wants priority service. If it is unavoidable to assign the priority service IP address, the default service IP address is assigned.

To this end, an access router of an Internet service provider classifies services by IP of a host, fills a Type of Service (TOS) area with a code corresponding to a priority service, and then transmits a packet. The priority service and the basic service can be independently operated by an internet service provider using various queuing and scheduling methods.However, when a packet is delivered to another internet service provider's network, a contract between the two service providers is provided. Support should be available for priority services.

In addition, in the method of classifying the packet in the access router, as mentioned above, the range of the specific IP address and the service are mapped. For example, if 203.255.250.1 to 203.255.250.128 is a priority service address, and 203.255.250.129 to 203.255.250.255 is set as the default service address, the access router will look at the address of the host sending the packet and use the code for the service. Convert the service type (TOS) area of the packet and classify it into the appropriate class. To do this, the operator may set the router in advance, or the router may be set through communication between the service management system and the router.

In order to provide a priority service, an Internet service provider must define a specific code for the service itself and at the same time specify what percentage of the link bandwidth should be allocated to a packet having the priority code. This percentage will later be used for billing of priority services. If all the bandwidth allocated to the priority service is not used, the basic service can use this bandwidth. If the bandwidth of the basic service remains, the priority service can use the bandwidth to increase the bandwidth efficiency.

Hosts that receive priority services receive more money than hosts that receive basic services, and therefore pay more. At this time, high speed internet access is operated at a flat rate, and this service basically requires billing based on usage time. The average Internet usage time is calculated to set the price of the basic service per hour, and the billing is set in proportion to the percentage of the bandwidth allocated to the priority service.

In the charging method, if the fee per minute of the basic service is one won and p% of the bandwidth of the entire link is allocated to the priority service, the fee f per minute of the priority service will be calculated as follows.

f = a * (1 + p * b), p <1

In Equation 1, b is a parameter that can be arbitrarily determined by the Internet service provider. The service provider should limit the service allocation of priority services to ensure the quality of priority services. The amount of the limit is determined by the service provider.

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

1 is a block diagram showing a general differential service overview.

As shown in the drawing, a differential service is provided between a user and a user at both ends of a network, and a user and a server. Users and servers are connected to the edge routers in the Internet Service Provider's network to receive Internet access and services. In addition, different Internet service providers have connections through their perimeter routers. In addition, the boundary router between Internet service providers provides a differential service by entering into a service level agreement (SLA).

2 is a block diagram showing an overview of the differential service proposed by the present invention.

Internet service providers have a service management system in their network to assign services to specific users.

FIG. 3 is a detailed diagram of a service management system in FIG. 2.

The host and communication module 31 is not only a module to which the host initially accesses to be assigned a service but also informs the host of the assigned service IP address. It also uses identifiers, passwords, and other authentication methods to restrict unauthorized users from accessing it. The service assignment determination module 32 receives a response by asking which service is currently available and what service the host wants, and passes the result to the DHCP server module 33. The DHCP server module transmits a predetermined range of IP addresses to the host through the host and the communication module according to the type of service, and records the time, IP address, and identifier of the host in the DB 34 for later charging. use. If the IP address assigned by the DHCP server 33 is not assigned to receive services from the access router, the DHCP server module 33 assigns specific services to specific routers to specific IP addresses through the router and the communication module 35. shall.

4 is a flowchart illustrating a service processing method of modules illustrated in FIG. 3, which will be described in detail as follows.

First, in order to receive the Internet service, the host connects 41 to the network of the Internet service provider. The service determination module asks the type of service desired by the host (42), and if the service desired by the host is a priority service, allocates a corresponding IP address (43). If the service desired by the host is a basic service, the corresponding IP address is allocated (44), and the information is recorded in the DB (45). If the IP address corresponding to the priority service is assigned, it is determined whether the IP address is set as the priority service in the access router (46). If not, the IP address is set in the router through the router and the communication module. 47) By sending the assigned address to the host, the host can receive service.

FIG. 5 is a flowchart illustrating a flow of a processing method when the host has notified the service termination among the methods in which the modules illustrated in FIG. 3 process a service.

First, when the host notifies the end of the service (51), retrieves the assigned IP address for use by another host (52), calculates the billing based on the service time and type of service (53), and calculates this information. By storing 54 in the DB, all processes are completed.

The present invention as described above has the effect of providing a priority service to the user who wants more than the basic service, to receive the Internet differentiated service, and to provide a commercialization model of the current standardized differential service. In addition, by providing differentiated services, Internet service providers can not only satisfy user requirements, but also increase profits by requesting more charges from priority service users.

Claims (5)

A host and communication means for authenticating user information input from the host and transmitting an assigned service Internet Protocol (IP) address to the host; Service determination means for guiding a type of service to the host and receiving a response from the host; According to the type of the service determined by the service determination means, one of a predetermined range of IP addresses are assigned and transmitted to the host through the communication means with the host, the service usage time and the assigned IP address, the IP allocation means for recording the user identifier information of the host in a database; And Router and communication means for communication with the router, When the IP address assigned by the IP assignment means is not assigned to receive a service from a router, the IP assignment means assigns a specific IP address to the router through a communication means with the router as a specific service. Service management system for providing differential services on the Internet. The method of claim 1, And means for calculating billing using the service usage time stored in the database, the allocated IP address, and the user identifier of the host. In the method for providing a differential service on the Internet, A first step of performing user authentication when a user accesses a service; A second step of informing a user of a service type and receiving a response after performing user authentication; If a user selects a priority service, allocating one of a specific range of IP addresses assigned to the priority service; If the user selects a basic service, allocating one of IP addresses of a specific range different from IP addresses of a range allocated to the priority service assigned to the basic service; A fifth step of recording the allocated IP address, time and user information in a database; And And a sixth step of setting an IP address assigned to the priority service as a priority service in a router so as to provide a priority service, and transmitting the allocated IP address to the user computer. How to Provide Differential Services. The method of claim 3, wherein And when the service termination is received from the user computer, recovering the allocated IP address, calculating the billing based on the service time and the type of the service, and storing the billing information in the database. How to Provide Differential Services on the Internet. On a computer connected to the internet, A first function of performing user authentication when a user accesses a service; A second function of notifying a user of a service type and receiving a response after performing user authentication; A third function of allocating one of a specific range of IP addresses assigned to the priority service when the user selects the priority service; A fourth function of allocating one of IP addresses of a specific range different from IP addresses of a range allocated to the priority service assigned to the basic service when the user selects a basic service; A fifth function of recording the allocated IP address, time and user information in a database; A sixth function of setting an IP address assigned to the priority service as a priority service in a router to provide a priority service, and transmitting the assigned IP address to the user computer; And When the service termination is received from the user computer, a program for executing the seventh function of recovering the allocated IP address, calculating billing based on the received service time and service type, and storing the billing information in the database. The computer-readable recording medium that recorded the data.