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EIGRP. Enhanced Interior Gateway Routing Protocol ( EIGRP ) is a Cisco-proprietary routing protocol for TCP/IP. It's actually based on Cisco's proprietary IGRP routing protocol, with many enhancements built into it .
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EIGRP Enhanced Interior Gateway Routing Protocol (EIGRP) is a Cisco-proprietary routing protocol for TCP/IP. It's actually based on Cisco's proprietary IGRP routing protocol, with many enhancements built into it. EIGRP has many link state characteristics that were added to it to allow for greater scalability in enterprise networks.
EIGRP metrics • Bandwidth • Load • Delay • Reliability • MTU • Hop Count Mfawa Alfred Onen - 2013
Successor A successor for a particular destination is a next hop router that satisfies these two conditions: • It provides the least distance to that destination • It is guaranteed not to be a part of a routing loop Mfawa Alfred Onen - 2013
Feasible Successor A feasible successorprovides a working route to the same destination, although with a higher distance. A feasible successor for a particular destination is a next hop router that satisfies this condition: • It is guaranteed not to be a part of a routing loop Mfawa Alfred Onen - 2013
Active and Passive State A destination in the topology table can be marked either as Passive or Active. A Passive state is a state when the router has identified the successor(s) for the destination. Active state is a state where the current successor no longer satisfies the Feasibility Condition and there are no feasible successors identified for that destination (i.e. no backup routes are available). Mfawa Alfred Onen - 2013
Features of EIGRP • EIGRP supports Classless Inter-Domain Routing (CIDR) • EIGRP is not usable in applications where routers need to know the exact network topology • EIGRP can run separate routing processes for Internet Protocol (IP), IPv6 etc Mfawa Alfred Onen - 2013
Useful OSPF Commands (Cisco IOS) Mfawa Alfred Onen - 2013
Useful OSPF Commands (Cisco IOS) CONTD. Mfawa Alfred Onen - 2013
Hands On Lab – Setup EIGRP on All R1,2 and 3 Mfawa Alfred Onen - 2013
Further Reading • http://computernetworkingnotes.com/routing-static-dynamics-rip-ospf-igrp-eigrp/eigrp-routing-configurations.html • http://cs-study.blogspot.com/2012/10/eigrp-on-packet-tracer.html • http://en.wikipedia.org/wiki/Enhanced_Interior_Gateway_Routing_Protocol Mfawa Alfred Onen - 2013
Questions? Mfawa Alfred Onen - 2013