What are the Major Pros and Cons of Routing Protocols OSPF and EIGRP?

OSPF:

Pros:

The main advantage of OSPF routing protocol is that it has a complete knowledge of network topology, allowing routers to calculate routes based on incoming requests. In addition, OSPF does not have limitations in hop count, converges faster than RIP, and has better load balancing.

Cons:

The disadvantage with OSPF is that it doesn’t scale when there are more routers added to the network. This is because it maintains multiple copies of routing information. OSPF networks with intermittent links can increase traffic every time a router sends the information. This lack of scalability means that a link state routing protocol like OSPF is not suitable for routing across the Internet.

EIGRP

Pros:

The main advantage of EIGRP protocol is that it converges much more quickly than do distance vector protocols, mainly because EIGRP does not need the loop-avoidance features that slow down  distance vector convergence. EIGRP takes less memory and processing than link-state protocols.

Cons:

Disadvantage of EIGRP protocol is that it is a Cisco  proprietary protocol which  can only work on Cisco routers.