County Area Informatization On Network Planning And Technical Solutions

County Area Informatization is important component part of the National Informatization,also it is the important means to promote the county economic development.County Area Informatization Network(CAIN)is the county information technology infrastructurethis paper,I present the technical planning and network solutions about the County Area Informatization Network.County Area Informatization Network is computer networks with broadband IP technology.Generally it can be classified three levels:the core layer,access layer and clustering layer.Unified IP address allocation,reliable access authentication and billing management,comprehensive network management and security management are integral parts in County Informatization Networks planning.Based on SDH,telecommunications Ethernet,ATM and other business networking platforms for the technical analysis,the paper explains County Area Informatization Network Access layers such as LAN,XDSL,WLAN,NGN and Integrated Access suitable for the rural.In addition to providing access to individual users,commercial users internet with fiber optics and VPN technology is the key topic of County Area Informatization Network.For example,county's education informatization network,and the county's rural informatization network planning and construction,the paper analyzes County Area Informatization Network.On the underlying network,County Area Informatization Network is transforming from existing broadband business to next generation network evolution including gradually functional integration,a flat structure,centralized control,Business Development flexible.