在通信网中,网络的各类资源,如网络带宽、结点中的缓冲器容量等是有限的,当网络的资源分配不平衡或调度不当时,网络的服务质量(Quality of Service,QoS)就会降低,因此,为保证网络的服务质量始终处于较高状态,就必须对网络中的传输进行控制和管理。 与传统的网络不同,ATM网络有支持所有类型信息(例如,声音、电视图像和数据等)在一个线路中传送的潜在能力。它是有更高 In the communication network, all kinds of resources in the network, such as network bandwidth and buffer capacity in nodes, are limited. When the network resources are unbalanced or disproportionately scheduled, the quality of service (QoS) Will be reduced, therefore, in order to ensure that the quality of service of the network is always in a high state, it is necessary to control and manage the transmission in the network. Unlike traditional networks, ATM networks have the potential to support the transmission of all types of information (eg, audio, video, and data, etc.) in one line. It is higher