The Electric Utility Substation is arguably the most critical link in the real time operations of the utility. Data from the field is brought back in real time to monitor the power system and commands are sent to reliably and cost-effectively control the transmission, generation and distribution subsystems. Modern substation automation systems utilizing LAN technology must be independent of any possible failures of the power systems, as they are essential in recovery operations. Therefore the system design for the backup of the substation LAN hardware, software, communications and management functions is essential. Further, Systems and Network Management tools are essential as they assist in monitoring and maintaining the substation LAN functions, the connected intelligent devices, and provide a means of rapid recovery.