Based on the concept of network logic isolation

network architecture planning is carried out using new network technologies such as free mobility

Vx LAN

and SDN. Under the premise of reducing infrastructure investment

the overall architecture design of a scientifi c research institute’s offi ce network

scientific research network and data center network is carried out through precise logical isolation. Under the condition that the network cannot be separately formed（traditional physical isolation）

the controllable access and authority control of the network terminal

server and test device have been achieved by this method. This method can not only ensure that the overall network of scientifi c research institutes runs in a relatively safe environment

but also improve the network performance

reduce labor costs

and provide a relatively complete network platform for the construction of "intelligent scientifi c research institutes".