MRG9000数字视频网络安全在电视台的应用  

Application of MRG9000 Digital Video Security Network in TV Stations

作　　者：李立群 

机构地区：[1]富锦广播电视台,黑龙江富锦156100

出　　处：《中国有线电视》2012年第4期505-509,共5页China Digital Cable TV

摘　　要：当前全国电视台纷纷投入大量资金搭建数字电视节目制作网络和播出网络,但是随之而来的病毒传播以及网络(黑客)攻击严重威胁电视台的正常运转,常规的网络安全措施难以满足广电网络的特殊要求,停播、漏播等事故时有发生,以致于很多电视台不敢将内部的各个局域网连接起来,使它们成为一个个数字孤岛,这样既降低了工作效率,又因为重复的上载损害了节目质量。为了克服防火墙在功能上的缺陷,借助目前网络安全领域中先进的隔离交换思想,富锦台应用MRG9000数字视频网络安全产品,部署在电视台各个安全网络的入口,在完成外部数据到内网的传输的同时,实现了数据资料的受控传输、内容审查、内网网络拓扑隐蔽、日志审计等安全功能,确保整个传输过程高速、安全、可控。Currently,the national television stations have invested heavily to build a network of digital TV programming and broadcast network.However,the subsequent transmission of the virus and network（hacker） attacks is a serious threat to the normal operation of television stations.Conventional network security measures are difficult to meet the special requirements of radio and television networks.Off the air leakage and playback accidents have occurred.So many different stations within the LAN will not connect,making them isolated digital islands.This not only reduces the working efficiency,but also reduces the quality of programs because of repeated upload.The core of a traditional network security defense system is a firewall,deployed Based on the ideas of advanced isolated exchange in network security fields,our station uses MRG9000 digital video network security products to overcome the defect of firewall.

关 键 词：网络安全防御体系 代理防火墙 物理隔离 协议隔离 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TN948[自动化与计算机技术—计算机科学与技术]