EIGRP stands for Enhanced Interior Gateway Routing Protocol. It is used to share information between routers lying in same region. It can be easily implemented in small as well as large networks. It is a hybrid protocol and uses distance vector routing and link-state routing protocol.
OSPF stands for Open Shortest Path first. It is used on variable-length subnet masking (VLSM) and discontinuous networks. It is a classless routing protocol.
Following are the important difference between EIGRP and OSPF.
|1||Protocol Type||Hybrid||Link State|
|2||Administration Distance||90 internal and 170 as external.||110|
|3||Algorithm used||Dual Distance Vector.||Dijkstra link state.|
|4||Standard||Cisco Proprietary.||IETF Open Standard.|
|5||Routing Metrices||Bandwidth.||Load and delay Bandwidth.|
|6||CPU Usage||Low CPU and Memory requirements.||High CPU and Memory requirements.|