EIGRP feasibility condition explained

Eigrp Topology Table Diagram Showing Successor And Feasible Successor Routes
CCNA

EIGRP Topology Table: The Complete Guide to Successors, Feasible Successors, and DUAL

The EIGRP topology table is the database that separates EIGRP from every distance-vector protocol that came before it. It holds every loop-free route an EIGRP router learns from its neighbors, not just the one it currently uses. That single design choice is why EIGRP can recover from a link failure in milliseconds instead of waiting...

Muhammad Khattak 8 min read
Diagram Showing Eigrp'S Three Tables In Sequence — Neighbor Table, Topology Table, And Ip Routing Table — With The Topology Table Emphasized As Holding Every Candidate Route
CCNA

EIGRP Topology Table: Successors, Feasible Successors, and How It’s Built

EIGRP maintains three tables on every router: a neighbor table, a topology table, and an IP routing table. The neighbor table tracks the state of directly connected EIGRP neighbors. The topology table is where the real decision-making material lives — it stores every route each neighbor has advertised, not just the winner. This guide covers...

Muhammad Khattak 8 min read
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