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文中介绍了温州日报报业集团网络互联中用到的EAPS环。由于温州日报报业集团是采用美国极进(Extreme)交换机,使用Extreme的EAPS(Ethernet Automatic Protection Switching)技术,IP环的自愈恢复时间可缩短至几十毫秒,达到SDH的自愈效果。在论述EAPS环前有必要简单介绍一下集团的网络构成:温州日报报业集团目前有4报一刊一网组成。日报大楼有两报一网而其它报社、杂志社及印务中心分别在不同地点。因此在外的汇聚层接入集团中心核心层基本采用ESRP(Extreme Standby Router Protocol)等链路备份协议.而考虑到集团今后数据冗灾,在其中一家硬件设施相对较好的报社(温州晚报)采用EAPS环来保证数据链路的畅通。
This paper introduces the EAPS ring used in Wenzhou Daily Newspaper Network. Since Wenzhou Daily Newspaper Group adopts Extreme Switch and uses Extreme’s EAPS (Ethernet Automatic Protection Switching) technology, the self-recovery time of IP ring can be shortened to several tens of milliseconds to reach the self-healing effect of SDH. Before discussing the EAPS ring, it is necessary to briefly introduce the network structure of the group: Wenzhou Daily Newspaper Group currently has 4 newspapers and one magazine. There are two newspapers in the daily newspaper building, while other newspapers, magazines and printing centers are in different locations. Therefore, the external aggregation layer accesses the core layer of the group center basically using the link backup protocol such as Extreme Standby Router Protocol (ESRP), etc. In view of the Group’s data redundancy in the future, one of the relatively well-equipped newspapers (Wenzhou Evening News) EAPS ring to ensure the smooth data link.