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The current status of mine network was summarized. According to development goal of mine Internet of things and changing trend of information processing modes in future mine, developing requirements and trend of mine network were analyzed form aspects of network capacity, manageability, dense access, real-time performance, intelligentization, emergency communication after disaster, etc. Design principles of network of mine Internet of things were proposed including flattening, intelligentization, resource abstraction, etc. The application and developing requirements of key technologies in mine Internet of things were introduced such as wireless transmission coding, software-defined network, flow offloading, edge computation, network function virtualization, cognitive radio, energy capture, semantic network and so on.

With the development of wired broadband services,new requirements on the carrying ability of network was put forward by video-dominated services.The demand on bandwidth and network quality of wired broadband traffic grooming was analyzed,and a feasible network evolution solution were presented from the perspective of multicast technology application,BRAS and CDN deployment,backbone network architecture evolution and other point of view.

With the development of wired broadband services,new requirements on the carrying ability of network was put forward by video-dominated services.The demand on bandwidth and network quality of wired broadband traffic grooming was analyzed,and a feasible network evolution solution were presented from the perspective of multicast technology application,BRAS and CDN deployment,backbone network architecture evolution and other point of view.