We in jiangxi province in the construction of the whole provincial network this year, and our county is required according to the provincial department of education in the construction of our county education department man, put all the county school connected to a LAN, in room stocked with the two core switches connected county schools, and then through a firewall and Internet use routers, end in the school, the school exit with a small core and center room core switch connection without router, do not know can not?