EIGRP Summary The characteristics of EIGRP follow: - Hybrid routing protocol (distance vector that has link-state protocol characteristics). - Use DUAL, first proposed by E. W. Dijkstra and C. S. Scholten, to perform distributed shortest-path routing while maintaining freedom from loops at every instant. Although many researchers have contributed to the development of DUAL, the most prominent work is that of J. J. Garcia-Luna-Aceves. - Cisco Proprietary created in 1994. - First released in IOS 9.21 - Uses IP protocol 88. - Makes Automatic summarization on network Class boundary. - Classless protocol (supports VLSM). - Have the power to shut the Auto-summarization And make a configured manual Summarization. - Default composite metric of bandwidth and delay. - You can factor load, MTU and reliability into the metric. - Eigrp metric is the same as IGRP*256, It us
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