Enhanced Interior Gateway Routing Protocol #2 - EIGRP Startup Messaging

Previously we went over some of the big ideas behind EIGRP. In this video we will talk about some the initial messages exchanged between routers engaging in EIGRP. These will include HELLO, UPDATE and ACK. While we are at it, we will take a look at actual packet captures from an operating topology.

From RFC 7868:
DUAL, the algorithm used to converge the control plane to a single set of loop-free paths is based on research conducted at SRI International. The Diffusing Update Algorithm (DUAL) is the algorithm used to obtain loop freedom at every instant throughout a route computation. This allows all routers involved in a topology change to synchronize at the same time; the routers not affected by topology changes are not involved in the recalculation.

EIGRP Part 1: https://youtu.be/QI3AtMm26ws

Don't forget chapters 5 and 6 from the Packet Guide to Routing and Switching from OReilly. More routing protocol videos:
RIP part 1 - https://youtu.be/uM9M6nX7LsQ
RIP part 2 - https://youtu.be/TbmJze0W7oc
OSPF Basic Build with a RIP comparison p1 - ttps://youtu.be/Dp0eiitAFPA
OSPF Basic Build with a RIP comparison p2 - https://youtu.be/ZsQbtcK4Wm0
OSPF Intro - https://youtu.be/WzTfHMkmUhs
OSPF details part 1 - https://youtu.be/e1Gf67AKRxA
OSPF details part 2 - https://youtu.be/ere-FKEZ_As
OSPF messaging - https://youtu.be/FZw60NWcOK0

A general routing and switching playlist can be found here:
https://www.youtube.com/watch?v=kSSrxnc87Oo&list=PLrancVv1TdY_JHXeSF1B7UOav4KEA1P5q

My books and other products for networkers

Packet Guide to Core Network Protocols: https://www.oreilly.com/library/view/packet-guide-to/9781449308094/

Packet Guide to Routing and Switching: https://www.oreilly.com/library/view/packet-guide-to/9781449311315/

Packet Guide to Voice over IP: https://www.oreilly.com/library/view/packet-guide-to/9781449339661/

Network Engineering Fundamentals: https://www.oreilly.com/videos/network-engineering-fundamentals/9781491932643/

Advanced Network Engineering: https://www.oreilly.com/videos/advanced-network-engineering/9781491952559/

Virtualization, Networking, and Storage: https://www.oreilly.com/videos/virtualization-networking-and/9781491970478/