作为企业网的一部分,ATM 给网络管理者带来一定的压力。首先,ATM 支持声音、图像和数据通信,而每一种通信方式各具独色,因而网络管理人员必须集中管理这三种通信。其次,这几种通信方式占用的带宽不同,需要为它们分配相应的带宽。第三,ATM 网络与其说是物理网络,不如说是建立在虚拟电路上的逻辑网络,通常情况下,网络管理人员对物理局域网更熟悉。为了解释这些问题,请看 As part of the corporate network, ATM brings some pressure to network managers. First, ATM supports voice, video, and data communications, each with a unique color scheme, so network managers must centrally manage these three communications. Second, these types of communications take up different bandwidths and need to allocate the appropriate bandwidth for them. Third, ATM networks are not so much physical networks as logical networks built on virtual circuits, and network managers are often more familiar with physical LANs. To explain these questions, see