Availability is one of the most important concerns in the networking world. For any high available network, the people need to maintain 99.99999% availability. That is why it is one of the most important factors to find out the single point of failure in the network architecture and eliminate that Single Point Of Failure (SPOF) from physical network and logical network. SPOF in their server infrastructure has been analyzed in terms of communicating with the router for forwarding traffic with multiple routers.