Advanced enterprise applications are driving the demand for metropolitan - area network ( MAN ) services.

先进的企业应用正在推动 城域 网业务的发展.

互联网

Metropolitan Area Network ( MAN ) , packet services occupy far more bandwidth than the traditional voice services.

城域 网内分组业务占用的带宽资源已远远超过了传统的语音业务.

互联网

DQDB metropolitan area network is a promising solution for the evolution from current networks to B - ISDN .

DQDB城域网是实现现有通信网络向B -ISDN 过渡的优选网络.

互联网