Which is faster EIGRP or OSPF?

Summary of the article:

which is faster OSPF or EIGRP? The network convergence time in EIGRP is faster than OSPF networks. EIGRP can learn topology information and updates rapidly, resulting in better performance in terms of packet delay variation. However, OSPF has higher scalability as it is an open standard and can be easily scaled compared to the vendor-specific and complex EIGRP. On the other hand, when it comes to routing protocols, BGP and OSPF are widely used. BGP excels in dynamic routing for large networks, while OSPF offers more efficient path choice and faster convergence speed. The reason OSPF is faster is that it has complete knowledge of network topology, allowing routers to calculate routes based on incoming requests. OSPF has no limitations in hop count, unlike RIP, which has a maximum of 15 hops. As for EIGRP, it is considered the best routing protocol for sharing routes among routers in the same autonomous system. It sends incremental updates, reducing router workload and data transmission. However, EIGRP has the disadvantage of not being extensible and not supporting future applications. In terms of speed, IGRP is the slowest converging routing protocol ever deployed in real networks. On the other hand, OSPF has advantages such as being suitable for large, heterogeneous internetworks and quick recalculation of routes when network topology changes. While it is still used today, the percentage of EIGRP usage would vary depending on the organization and platform. Finally, EIGRP enables routers to exchange data more efficiently and is an evolution of the now obsolete IGRP protocol.

Questions and Answers:

1. Which is faster among OSPF and EIGRP and why?
   The network convergence time is faster in EIGRP compared to OSPF. EIGRP can learn topology information and updates more rapidly, resulting in better packet delay variation performance.
2. Why is OSPF better than EIGRP?
   OSPF has higher scalability compared to EIGRP. It is an open standard and simple protocol, making it easier to scale the network. In contrast, EIGRP is vendor-specific and more complicated.
3. Which routing protocol is faster?
   BGP and OSPF are two common routing protocols. While BGP excels in dynamic routing for large networks, OSPF offers more efficient path choice and faster convergence speed.
4. Why is OSPF faster?
   OSPF has complete knowledge of network topology, allowing routers to calculate routes based on incoming requests. It does not have limitations in hop count like RIP, resulting in faster convergence and better load balancing.
5. Why is EIGRP the best routing protocol?
   EIGRP is considered the best routing protocol for sharing routes within the same autonomous system. Unlike other protocols, it sends incremental updates, reducing router workload and data transmission.
6. What are the disadvantages of EIGRP?
   EIGRP is a distance vector routing protocol that relies on routes provided by neighbors. It is not extensible and does not support future applications.
7. What is the slowest routing protocol?
   IGRP is known as the slowest converging routing protocol, considering default timers, ever deployed in real networks.
8. What is the main advantage of OSPF?
   OSPF is more suitable for large, heterogeneous internetworks compared to distance-vector routing protocols like RIP. It can quickly recalculate routes in response to network topology changes.
9. Is EIGRP still used?
   EIGRP is still used today, but the percentage of usage varies depending on the organization and platform. It is likely below 50% as an IGP aggregated across all implementations, and looking specifically at Cisco platforms, it may be greater than 50% by organization but less than 50% by device count.
10. Why should I use EIGRP?
    EIGRP enables more efficient data exchange between routers compared to earlier network protocols like IGRP and BGP.
11. Is EIGRP obsolete?
    EIGRP is an evolution of the obsolete Cisco protocol called IGRP.