A Comparison of Enhanced Interior Gateway Routing and Open Shortest Path First Protocols
EIGRP
OSPF
Protocol support
IPX, IPv4, IPv6, AppleTalk can be tuned to work with anything with minimal effort.
IPv4, IPv6
Type
Hybrid of both link-state and distance-vector
Link-state
Algorithm for path selection
Diffusing Update Algorithm
Dijkstra’s algorithm
Metrics
Minimum bandwidth, delay, load, reliability, and maximum transmission unit external Scalability
Difficulty scaling in to a large network
Works great with large networks scales great
Admin distance
5
110
EIGRP stands for Enhances Interior Gateway Routing Protocol; EIGRP is an enhanced distance vector protocol, relying on the Diffused Update Algorithm (DUAL) to calculate the shortest path to a destination within a network. (CISCO, 2005) OSPF (Open Shortest Path First) is a classless, link-state routing protocol. The current version of OSPF for IPv4 is OSPFv2 introduced in RFC 1247 and updated in RFC 2328 by John Moy. In 1999, OSPFv3 for IPv6 was published in RFC 2740. (The Open University, 2014)
The strengths of EIGRP are Fast convergence EIGRP is an advance distance vector protocol, one of its core strengths is its fast network convergence capabilities, unlike other routing protocols EIGRP keeps feasible successor routes right into the routing table, and this allows millisecond convergence should the successor route fail. Flexible in summarization Unlike OSPF, EIGRP allows you to summarize anywhere, in bigger environments where routers are advertising hundreds of networks, route summarization can greatly enhance router's and network operational capabilities, its less taxing on CPU / memory and cheaper to run / maintain. Unequal cost load-balancing EIGRP allows unequal cost load balancing, which means you can use 2 different cost links to load balance traffic, no other protocol can do this. VLSM friendly unlike other distance vector protocols, EIGRP supports VLSM and discontinuous networks; it supports class less routing and its 100 % loop free protocol. (CISCO, 2005)
One of the most
OSPF
Protocol support
IPX, IPv4, IPv6, AppleTalk can be tuned to work with anything with minimal effort.
IPv4, IPv6
Type
Hybrid of both link-state and distance-vector
Link-state
Algorithm for path selection
Diffusing Update Algorithm
Dijkstra’s algorithm
Metrics
Minimum bandwidth, delay, load, reliability, and maximum transmission unit external Scalability
Difficulty scaling in to a large network
Works great with large networks scales great
Admin distance
5
110
EIGRP stands for Enhances Interior Gateway Routing Protocol; EIGRP is an enhanced distance vector protocol, relying on the Diffused Update Algorithm (DUAL) to calculate the shortest path to a destination within a network. (CISCO, 2005) OSPF (Open Shortest Path First) is a classless, link-state routing protocol. The current version of OSPF for IPv4 is OSPFv2 introduced in RFC 1247 and updated in RFC 2328 by John Moy. In 1999, OSPFv3 for IPv6 was published in RFC 2740. (The Open University, 2014)
The strengths of EIGRP are Fast convergence EIGRP is an advance distance vector protocol, one of its core strengths is its fast network convergence capabilities, unlike other routing protocols EIGRP keeps feasible successor routes right into the routing table, and this allows millisecond convergence should the successor route fail. Flexible in summarization Unlike OSPF, EIGRP allows you to summarize anywhere, in bigger environments where routers are advertising hundreds of networks, route summarization can greatly enhance router's and network operational capabilities, its less taxing on CPU / memory and cheaper to run / maintain. Unequal cost load-balancing EIGRP allows unequal cost load balancing, which means you can use 2 different cost links to load balance traffic, no other protocol can do this. VLSM friendly unlike other distance vector protocols, EIGRP supports VLSM and discontinuous networks; it supports class less routing and its 100 % loop free protocol. (CISCO, 2005)
One of the most