Research on information isolation scheme of smart distribution

The information security and isolation is an important and central part of smart distribution communication grid. This paper presents a scheme which can solve this question. The scheme in bone network used the QoS and traffic engineering mechanism of the MPLS_VPN technology and Router-Target, Router-Distinguisher characteristics, and ensure the substation information transmit quickly and effectively. At the access side, the IPSec encryption and authentication functions ensure the critical business information has a strict confidentiality, and owe the prevention of network attacks. According to the simulation result, we can conclude that the scheme has achieved the information isolation by using different VPN and the real-time requirements. The scheme has strong isolation characteristic, improving the level of smart distribution grid security.