数字电视双向设备隔离分析与测试  

Bidirectional Digital Television Equipment Isolation Analysis and Test

作　　者：王志炜[1] 汪杏意[1] 黄铭均[1] 

机构地区：[1]奉化市广播电视中心,浙江奉化315500

出　　处：《中国有线电视》2012年第12期1375-1378,共4页China Digital Cable TV

摘　　要：奉化市广播电视中心有线电视双向网络拓扑目前采用的是EPON+EoC/EPON+LAN方式。广电网在数字化、IP化的同时,新问题也随之产生,为了提高大网的可靠性,对一些有源数据交换设备的隔离进行了有益的探索,可以通过多种手段来减少广播风暴对双向网的影响,其中一个重要手段是网络设备的二层隔离,该手段能将故障点锁定在最小范围内,提高整网的可靠性,在实际应用中,我们根据规划进行配置,可防患于未然。Fenghua radio and TV Center of CATV two-way network topology is currently used in EPON ＋ EoC / EPON ＋ LAN. Radio and television network in the digital , IP at the same time, new problems also arise subse- quently, in order to improve the network reliability, some of the active data exchange between equipment isolation undertook beneficial exploration. Through a variety of means to reduce the broadcast storm in two-way network effects, one of the important means for the network layer two isolation. The means of the fault point locking in a minimum range,improve network reliability. In practical application, we according to the plan configura- tion, nip in the bud.

关 键 词：ONU EPON+LAN 网络设备 隔离 IP规划 

分 类 号：TN949.197[电子电信—信号与信息处理]