EIGRP stands for Enhanced Interior Gateway Routing Protocol. It is used to share the information from one router to the neighbour routers if they exist in the same region. It is also a complex protocol but can be configured and make it work easily in small and large networks. It is also a hybrid protocol because it uses the features of the both distance vector routing and link-state routing protocol.
OSPF stands for Open Shortest Path first. This can be used and deployed in a variety of networks. This is a classless routing protocol which also assists variable-length subnet masking (VLSM) and discontiguous networks.
Difference between EIGRP and OSPF:
|1.||Stands for||Enhanced Interior Gateway Protocol.||Open Shortest Path First.|
|2.||Protocol type||Hybrid.||Link State.|
|3.||Administrative distance||90 (Internal) 170 (External).||110|
|4.||Algorithm||DUAL distance vector.||Dijkstra link state.|
|5.||Standards-based on||Cisco Proprietary.||IETF Open Standard.|
|6.||Routing metrics||Combination of bandwidth, reliability, load and delay.||Interface bandwidth.|
|7.||CPU requirements||Lower CPU and memory needs.||Require high CPU and memory.|
|8.||Ease of implementation||Easy but no provision of auto-summary.||Complicated.|
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