OSPF Traffic Routing Protocol in Hybrid Network

In financial busines, the reliability of any company is important factor to success, in our IT world all data is sent electronically to central processing by network connections. Thus, it should be more than one line connection from branches to head office; many companies prefer to rent a standby network connection from another internet service provider (ISP) with other technology. In this paper we discuss a problem occurs when we apply Open Shortest Path First (OSPF) protocol on a computer network which consist of two lines with different technologies. The first technology is frame relay and the second is MultiProtocol Label Switching (MPLS). We propose three solutions to this problem. First solution is using access list, second solution is using redistribute ang the final is using virtual routing and forwarding (Vrj). We implement our solutions on real environment, we see that using virtual routing and forwarding method is the best solution.