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Unit 5 Assignment 5.1 Eigrp vs Ospf

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Unit 5 Assignment 1: Cisco Networks EIGRP versus OSPF

EIGRP: Enhanced Interior Gateway Routing Protocol
Is another routing protocol just like RIP and OSPF. EIGRP converges very quickly and it takes about the same time or not less than OSPF takes to converge, but without the negatives of OSPF. EIGRP’s benefit requires much less processing time, memory and less design than say OSPF. The downside with EIGRP is that it is Cisco-proprietary, so if an internet work areas uses non-Cisco routers it cannot be used on those routers. EIGRP is neither distance-vector nor link-state. Sometimes Cisco refers to EIGRP as an enhanced distance vector protocol but in some cases calls it a balanced hybrid routing protocol. EIGRP has some similarities to routing protocols but the differences far outweigh them.
OSPF: Open Shortest Path First Is a link-state routing protocol for Internet Protocol (IP) networks. It uses a link state routing algorithm and falls into the group of interior routing protocols, operating within a single autonomous system (AS). It is defined as OSPF Version 2 in RFC 2328for IPv4. The updates for IPv6 are specified as OSPF Version 3 in RFC 5340 . OSPF is perhaps the most widely used interior gateway protocol (IGP) in large enterprise networks. IS-IS, another link-state dynamic routing protocol, is more common in large service provider networks. The most widely used exterior gateway protocol is the Border Gateway Protocol (BGP), the principal routing protocol between autonomous systems on the Internet.

| EIGRP | OSPF | Protocol Support | | | Type | Enhanced Distance Vector | Link State | Algorithm for path selection | | | Metrics | | | Scalability | | | Administrative distance | | |

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