What is the difference between rip eigrp and ospf

Unlike other well known routing protocols, such as RIP, EIGRP only sends incremental updates, reducing the workload on the router and the amount of data that needs to be transmitted. OSPF can only summarize between areas. A dynamic routing protocol is an agreed-on method of routing that the sender, receiver, and all routers along the path route support. Typically the routing protocol involves a process running on all computers and routers along that route to enable each router to handle routes in the same way as the others.

RIPv1 use broadcast to update the routing table. RIPv2 uses multicasts EIGRP maintains all of the advantages of distance-vector protocols, while avoiding the concurrent disadvantages. EIGRP is a simple protocol to understand and deploy. In every 30 seconds, it delivers an entire routing table to all active interfaces. Hop count is the only metrics to describe the best path to a remote network, but it can be 15 at max.

It prevents routing loops, through restricting the number of hop counts permitted in the path. Convergence is a process of collecting the topological information or updating the information for the other routers through the implemented routing protocol.

Convergence occurs when the router is transitioned from either to forwarding or blocking states, and it prevents data forwarding at that instant. The main issue with convergence is the time it takes to update information in a device. Slow convergence can result in inconsistent routing table and routing loops.

Routing loops forms when routing information is not updated or the when the information propagated throughout the network is wrong. Split horizons and route poisoning is the solution to the routing loop problem. Split horizon enforces a rule which prevents the information form sending back to the source from which it was received.

Although, it is a complex protocol but we can configure and run it easily in small and large networks. It was devised to overcome the shortcomings of the classical distance vector routing protocols like IGRP and RIP which were hard to scale according to the needs of the network.

EIGRP is considered as a hybrid because it merges the features of the distance vector routing and link-state routing protocol. The convergence time in a network is the time that is consumed for all the routers in the network to accept the network change. If the convergence time is less the router can swiftly adapt the network topology change. The EIGRP does not send full periodic routing updates, that is the reason it has fast convergence time.

The main idea behind the development of the OSPF protocol is to develop a link-state protocol which could provide more efficiency and scalability than RIP. It has a reliable mechanism for transportation rather than having a transport protocol like TCP. To send Hello and updates it uses multicast addresses — RIP enables hosts and routers to exchange information for computing routes through an IP-based network.

RIP is a distance vector protocol. IGRP is also a distance vector protocol. The OSPF protocol is a link-state routing protocol, which means that the routers exchange topology information with their nearest neighbors.

The main advantage of a link state routing protocol like OSPF is that the complete knowledge of topology allows routers to calculate routes that satisfy particular criteria.

It performs a much easier transition with a multi-address family. When an interface goes down, EIGRP takes down the neighbors that are reachable through that interface and flushes all routes learned through that neighbor. Misconfigured hello and hold intervals. Routing Information Protocol RIP is a stable protocol that uses a distance-vector algorithm to calculate routes.