EIGRP Topology

[gauravpundir231]

Hi All,

Eigrp topology table contains successor , feasible successor  & non successor  routes. If eigrp looses successor & feasible successor routes will it re run dual for best route in spite of having non successor route.

Is there any difference between sh ip ei topology & sh ip ei topology all-links

Please advise

[Jon Marshall]

Short answer is yes it will go active although note that even with a feasible successor it could still go active ie. not necessarily just install the route. 

"show ip eigrp topology" shows successor and feasible successor routes" 

"show ip eigrp topology all-links" shows all EIGRP learned routes

For a far more detailed answer about all of this see - 

https://community.cisco.com/t5/switching/eigrp-successor-and-feasible-successor/td-p/2257563

Jon