由于各运营商的单关口局网络结构给网间业务安全带来隐患,为了达到监管部门“双节点、双路由、负荷分担”的网络架构,移动、联通开始建设第二关口局,而中国电信宝鸡分公司也通过将原汇接单一业务的固网、C网关口局改造为综合关口局的工作,实现了网间业务网间业务双节点、双路由、负荷分担的网络架构,使网络更加安全。 As each operator’s single-gateway structure brings hidden dangers to the security of inter-network services, in order to achieve the regulatory authority’s “dual-node, dual-route, load sharing” network architecture, China Unicom started to build its second gateway office China Telecom Baoji Branch also transformed the fixed-line and single-service fixed-line business of CETC into a comprehensive gateway business and realized the network structure of dual-node, dual-route and load sharing in the inter-network business, Make the network more secure.