EIGRP

Jul 05, 2008 @ 05:16 pm by HackingManual

EIGRP stands for Enhanced Interior Gateway Routing Protocol. It is a classless hybrid routing protocol created as an enhanced version of IGRP.

Just like it’s predecessor EIGRP is a Cisco proprietary routing protocol that uses an AS number. It synchronizes routing tables between neighbors at startup, and then it sends specific updates only when topology changes occur.

EIGRP performs path selection by using DUAL(Diffusing Update Algorithm)

EIGRP Supports several protocols including IP, IPX, and Apple Talk. It stored it’s data in the ram for fast retrieval. The three databases it uses are:

The Neighbor table
The Topology table
The Routing table

EIGRP Uses RTP and Supports multiple AS numbers It’s administrative distance is Internal:90 and External:270

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