KR20000042919A - Method for transmitting messages between asynchronous transfer mode switch and web clients of personal computers - Google Patents

Abstract

PURPOSE: A method for transmitting messages is provided to make a user easily transmit the messages by connecting the messages between an exchange and web clients of personal computers. CONSTITUTION: A method for transmitting messages by connecting an exchange to web clients of personal computers, with a graphic user interface server, comprises the steps of: forming and registering a user data protocol file descriptor between the exchange and the graphic user interface server; forming and registering a transmission control protocol(TCP) listen file descriptor for recognizing a web client transmitting the messages; and recognizing a file descriptor kind to execute operations according to the kind.

Description

How to Transfer Messages Between an Asynchronous Transfer Mode Switch and a Web Client on a Personal Computer

The present invention relates to a message transfer method between an asynchronous transfer mode switch and a web site of a personal computer, and more particularly to a message transfer method between a plurality of personal computers and exchanges.

1 shows a connection between a conventional exchange and a personal computer.

Referring to FIG. 1, in the conventional asynchronous transfer mode switch 110, signal transmission out of an exchange processes a message on a workstation 120 connected to an exchange and a block (HANDF) responsible for external input / output on the exchange processor. Connect the application (HMI Server) first. Then, the Human Man Interface Client is run on an external workstation 140 or a personal computer (requires X-Emulation) to input the exchange command, and then exchanges the exchange control command through the graphic input window. ), And output a response message to the command output window.

The message to the conventional exchange is transmitted in a string called MMCmeta, and the response message is composed of a method of receiving a line from the exchange and simply outputting it to the output window so that an efficient message exchange is not made. The sender shall send the next message referring to the exchange's response message. In addition, due to the conventional configuration of outputting only a result value without receiving a response message for a transmission message, an inefficient operation occurs.

Accordingly, an object of the present invention is to provide an efficient message transmission method between an exchange and a personal computer.

Another object of the present invention is to provide a method for connecting a message between an exchange and a web client of a personal computer.

Another object of the present invention is to provide a method for easily sending a message by connecting a switch and a web client on a personal computer.

The present invention for achieving these objectives is to construct a message connection structure between the exchange and a web client on an external personal computer to send a command message from the web client to the exchange, and again receive a response message from the exchange. The response message may be analyzed to recreate the next message configuration window or to display data on the screen, and to transmit a control message input from the user to the exchange.

1 is a connection configuration diagram between a conventional exchange and a command input terminal.

2 is a connection diagram between a switch and a personal computer according to the present invention;

3 is a diagram illustrating a process of transmitting a message according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 illustrates a connection structure between an exchange and a personal computer according to the present invention.

Referring to FIG. 2, in the workstation 220 connected to the switch 210, a graphic user interface server 221 for establishing a connection between the switch 210 and a web server 230 may be used. To drive. The GUI server 221 makes a UDP connection with the OMP via SROSD (a daemon developed to use SROS on a workstation; 222). Next, the GUI server 221 executes a listen for opening a TCP socket from the web client 241, 251, and then executes a select for UDP and a listen fd (File Discriptor). Here comes the message from listen fd first. If the TCP socket is configured, the waiting fd includes the TCP socket. Then select executes the following for each incoming message to fd. The listen fd configures a TCP socket between the GUI server 221 and the web clients 241 and 251 and adds it to fd_set for selecting a TCP socket. TCP fd sends a message coming through the web client 241,251 to the exchange. UDP fd sends a response message from the switch to the web client.

The operator sends an exchange operation message from the web clients 241 and 251 to the exchange. At this time, the GUI server 221 transfers the socket fd of the TCP connection configured between the web clients 241 and 251 to send the message to the switch 210 in the message. When the GUI server 220 receives the response message from the switch 210, the GUI server 220 may refer to the fd included in the message and send the message back to the web client that transmitted the message. Thus, the operator can receive a response in the form of a message from the web client.

Message delivery according to the present invention includes the message entered in the TCP fd of the GUI server 221 in fd and delivers to the switch 210. After executing the command, the exchange's application processor sends the response message and fd to the UDP server's UDP fd. The GUI server 221 sends a response message to the web client that sends the command after seeing the fd in the response message entered into the UDP fd.

3 shows a process of transmitting a message according to an embodiment of the present invention.

A method of transmitting a message between an asynchronous transfer mode switching system and a web client of a personal computer according to the present invention will be described with reference to FIGS. In operation 310, the GUI server 221 forms a User Data Protocol (UDP) fd with the switch 210. In operation 320, the GUI server 221 registers the formed UDP fd.

In step 330, the GUI server 221 forms a TCP listen fd. In step 340, the GUI server 221 registers the formed TCP listen fd. In operation 350, the GUI server 221 determines what kind of fd is.

If it is determined that it is a listen fd, in step 361, the GUI server 221 approves the listen fd, forms a TCP fd in step 362, and registers the formed TCP fd in step 363. do.

On the other hand, if it is determined to be TCP fd, the GUI server 221 reads the message transmitted from the predetermined web client through TCP fd in step 371, and the message read is abnormal in step 372. Determine whether or not.

If the read message is determined to be a normal message rather than an abnormal message, in step 373, the GUI server 221 adds fd to the transmitted message. (Message = message + fd) That is, the GUI server 221 ) Adds fd to the message to indicate from which fd the message was sent. In operation 374, the GUI server 221 transmits a message to the switch 210 through the UDP fd.

In contrast, if it is determined that the UDP fd, in step 381, the GUI server 221 reads the message transmitted from the switch 210 through the UDP fd. In operation 382, the GUI server 221 extracts fd from the read message (message = message-fd) to determine a client to which the message is to be transmitted. In operation 383, the GUI server 221 transmits the message to the client identified as fd.

As described above, the present invention can configure the next message using the response message using the response message, thereby efficiently transmitting the message. In addition, in the case of the conventional HMI is driven based on the X window of the workstation, expensive X emulation is required when using in a personal computer, but the present invention can reduce the operating cost by using a web browser on the personal computer.

Claims (5)

In the method of transmitting a message by connecting the web client of the exchange and a plurality of personal computers to the graphical user interface server, Forming and registering a user data protocol file descriptor between the exchange and the graphical user interface server; Forming and registering a TCP listen file descriptor for identifying a state of a web client to which a message is to be delivered; A method of transmitting a message between an asynchronous transfer mode switch and a web client of a personal computer, characterized by determining the type of file descriptor and performing the corresponding operation. The method of claim 1, If it is determined that the file descriptor is a listen file descriptor, the method of transmitting a message between the asynchronous transfer mode switch and the web client of the personal computer further comprising the step of forming and registering a TPC file descriptor. The method of claim 1, If it is determined that the file descriptor is a TPC file descriptor, reading a message transmitted from a web client through a TPC file descriptor; Determining whether the read message is normal; If it is determined that the read message is normal, adding the file descriptor that transmitted the message to the read message, and transmitting the same to the switch. How to send a message. The method of claim 1, If it is determined that the type of the file descriptor is a user data protocol file descriptor, reading a message transmitted from the switch through a user data protocol file descriptor; Extracting a file descriptor of a web client to be transmitted from the read message; And transmitting the message to the web client extracted from the read message. The message transmission method between the asynchronous transmission mode switch and the web client of the personal computer. The method of claim 3, If it is determined that the message is abnormal, deregistering the TPC file descriptor of the web client to which the message is transmitted; And a step of blocking a TPC file descriptor between the web client and the graphical user interface server.