China's Ministry of Railways is in charge of the national railway network, which is the main artery of the country's transport system. Their challenge is to ensure effective data exchange and security for compartmentalized network segments of a government transportation entity. They chose Juniper Networks to overcome this challenge. They have implemented Juniper Networks ISG2000 integrated security gateway. The ISG2000 enabled the Ministry of Railways to maintain clean separation of its three network segments, the production network, the administration network and the WAN to maximize security and robustness. The solution also facilitated the smooth delivery of services and support, contributing to sound and secure operation of the network.