Abstract: - As we can see today new technology provides many services and fast communications, such as the Internet. We need to think about how information moves from source to destination. In fact, there is a device that manages this operation and called router, this device explores the path from source to destination at low cost. However, in this report we will present one of the most widespread algorithms in routing, its Distance Vector algorithm which is the basis of the well-known Routing Information Protocol (RIP), then we will explain how this protocol works, what the problem is and how we can manage and solve it when we use this protocol. Next we will find the advantage and disadvantage of this protocol and compare it with another protocol. Finally, find the accuracy of this algorithm.Keywords: routing protocol, distance vector algorithm, routing information protocol, open shortest path protocol.I. INTRODUCTIONTraffic is one of the major problems in networks and to avoid congestion in the network and transfer data from source to destination with a short path an algorithm is needed to implement to obtain the optimal path. So, now we know what the route is and it is not necessary to get the best route depending on the algorithm applied. Also, when transferring data from one network to another there is a router that decides which path the packet will take and at least the router will connect to two networks. The router will occupy any place in the network and will take care of creating and improving the routing table. In fact, there are the conditions that decide the route, the distance measurement and the cost algorithm to determine...... middle of paper...... Garza, (August 4, 2010). RIP protocol tutorial[online]. Available: http://www.ehow.com/list_6812685_rip-protocol-tutorials.html[3] D.Parker.(2006, October 5). Routing Protocol [online]. Available: http://www.windowsnetworking.com/articles_tutorials/Routing-Protocols.html[4] TP Lambrou and CG Panayiotou, (2009, March 4). Survey of routing techniques to support mobility in sensor networks [online]. Available: http://www.hindawi.com/journals/asp/2009/750657.htm1.[5] B.WANG, J. ZHANG, W. CHEN, and Y.fei GUO, “A fast redirection mechanism for the RIP protocol,” Circuits, Communications and Systems, 2009. PACCS '09. Asia-Pacific Conference, pp. 74 – 77, 2009.[6] D. Pei, D. Massey, and L. Zhang, “Detecting Invalid Routing Advertisements in RIP Protocol,” Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE. vol. 3, pages. 1450 – 1455, 2003.