Based on years of experience on the design and construction of audio production and broadcast network,this paper first makes a comprehensive analysis on the general network security measures,then introduces in detail the specific security solutions such as the backup broadcast system as well as the secure interconnection between the intra-network and the public network for Henan Radio.

This paper describe some basic Broadcasting Algorithms such as: flooding based broadcasting algorithm,counter-based broadcasting algorithm, orientation-based broadcasting algorithm,competition-based broadcasting algorithm and so on.