| 摘要 |
PURPOSE: A communication method between a switch and a computer is provided to perform communication without composing a specific communication network between the switch and the computer. CONSTITUTION: An upper layer of a computer generates corresponding message information and transmits generated message information to a signaling protocol layer of the computer. The signaling protocol layer of the computer generates transmitted message information as a signaling message, and requests a service to an X.25 layer by using a logic channel number. The X.25 layer of the computer receives the request of the service, assigns the logic channel number, generates X.25 packet data, and transmits the X.25 packet data to an X.25 layer of a switch. The X.25 layer of the switch receives the generated X.25 packet data. If the logic channel number of the packet data is not the assigned number(29), the X.25 layer of the switch performs a packet switch service. If the logic channel number of the packet data is the assigned number(29), the X.25 layer of the switch transmits the packet data to a signaling protocol layer(30) and searches a switch corresponding to a destination of the packet(31,34-37). The X.25 layer of the switch transmits information to an upper layer of the switch corresponding to the destination of the packet(32) and the upper layer of the switch receives information(33).
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