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山东省税务行业已经建立了基于 ATM 光纤专网的省、市、县三级联网体系结构。在“风筝之都”潍坊市,为了使税务信息网延伸到基层。更好地服务于纳税用户,潍坊市急需建设一个连接县乡地税部门网点的税务四级高速联网系统。基于网络稳定性和长期运行成本的考虑,DDN(帧中继)和扩频无线两种建网方式进入选择范围之中。在测试中选择潍坊地方税务局相关负责人员在不同县局分别对DDN 和无线扩频两种联网方式进行了应用测试。潍坊地方税务局首先采用 DDN 方式在县局试点。在2002年使用过程中,线路出现故障6次,每次维修周期需要7天左右,甚至出现过一个月未完成维修的情况。另外,基层分局反映数据查询速度太慢,月终结账需要半天或更长时间。
Shandong Province tax industry has established a provincial, municipal and county networked architecture based on ATM optical fiber private network. In Weifang, the “Kite Capital”, in order to extend the tax information network to the grassroots level. To better serve the taxpayers, Weifang urgently needs to build a four-tiered tax high-speed network connecting the county and township tax department outlets. Based on the consideration of network stability and long-term operation cost, DDN (Frame Relay) and Spread-Spectrum Wireless are two ways to enter the selection range. Weifang Local Taxation Bureau in charge of selecting the relevant responsible officers in different county offices DDN and wireless spread spectrum, respectively, two networking applications were tested. Weifang Local Taxation Bureau first adopted DDN pilot program in the county. In the course of using in 2002, the line breaks down 6 times, each maintenance cycle needs about 7 days, even have not finished the maintenance situation in one month. In addition, the basic branch office to reflect the data query is too slow, month-end checkout takes half a day or longer.