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If a service (or application) wishes to use a broadband network (an ATM network in particular) to transport a particular kind of traffic, it must first inform the network about what kind of traffic is to be transported, and the performance requirements of that traffic.〔Hiroshi Saito, Teletraffic Technologies in ATM Networks, Artech House, 1993. ISBN 0-89006-622-1.〕 The application presents this information to the network in the form a traffic contract. == The Traffic descriptor == When a connection is requested by an application, the application indicates to the network:〔Ferguson P., Huston G., Quality of Service: Delivering QoS on the Internet and in Corporate Networks, John Wiley & Sons, Inc., 1998. ISBN 0-471-24358-2.〕 *The Type of Service required *The Traffic Parameters of each data flow in both directions *The Quality of Service (QoS) Parameters requested in each direction These parameters form the ''traffic descriptor'' for the connection. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「traffic contract」の詳細全文を読む スポンサード リンク
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