网络设备的管理控制一般来讲由两种方式实现,带内网管和带外网管。所谓带内网管是指网络的管理控制信息与网络的承载业务信息通过同一个逻辑信道传送,即网管信息和业务共同使用带宽,无需设置专用设备,能够实现网络监控管理、流量分析等通用网管 Network equipment management and control in general by the two ways to achieve, with in-band network management and out-band network management. The so-called in-band network management refers to the network management control information and network bearer service information transmitted through the same logical channel, that is, network management information and services to use the bandwidth, without setting up special equipment, to achieve network monitoring and management, traffic analysis and other common network management