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VIRTUAL CIRCUIT TRANSMISSION QUALITY GUARANTEEING SYSTEM, FLOW CONTROL SYSTEM, BAND LIMITING SYSTEM AND BAND RESERVING SYSTEM
VIRTUAL CIRCUIT TRANSMISSION QUALITY GUARANTEEING SYSTEM, FLOW CONTROL SYSTEM, BAND LIMITING SYSTEM AND BAND RESERVING SYSTEM
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机译:虚拟电路传输质量保证系统,流量控制系统,带宽限制系统和带宽保留系统
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摘要
PURPOSE:To guarantee the transmission quality of a virtual circuit(VC) and further to cause a time needed for the set of the VC to be minimum by receiving a transmission band where the VC is used from a terminal to output the setting request of the VC and executing the reservation of resources needed for communication when the VC is set to a communication network. CONSTITUTION:A network termination equipment(NT) executes incoming call processing (814) to an incoming terminal. For the incoming call processing, for example, the bell of a telephone set is rung in an existing telephone network and the telephone set becomes off-hook. Namely, when there is a response from the incoming terminal, the NT regards the set of the VC is completed and prepares a VC set ending packet. Then, the packet is delivered to a node (815). The VC set ending packet is transferred (816, 817, 818) in the communication network along a reverse direction VP set by a VP setting order, and delivered to the NT receiving a calling terminal. A terminal receiving the VC set ending packet instructs a terminal, which executes the communication, to start the output of a data packet.
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