EIGRP feasible successor

wseyllerwseyller Member Posts: 44 ■■■□□□□□□□
Can someone explain why the second link via f0/0 is not a feasible sucessor route. I used an acl to modify the RD of the route coming in from f0/0 to add 500,000. But when I look at the "show ip eigrp topology all-links" it looks to me like the advertised distance of the route through f0/0 is lower than the feasible distance of the successor which I thought should allow it to become a feasible successor.

show ip eigrp topology all-links
P, 1 successors, FD is 2195456, serno 44
via (2681856/2169856), Serial1/1
via (2695456/2669856), FastEthernet0/0

show ip eigrp topology
P, 1 successors, FD is 2195456
via (2681856/2169856), Serial1/1


  • HappyBearITHappyBearIT Member Posts: 55 ■■■□□□□□□□
    My assumption is it has something to do with your FD for the route still showing as 2195456 which is lower than the AD/RD of the route coming in from F0/0. It looks like your ACL modification is only half way working for some reason.
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  • wseyllerwseyller Member Posts: 44 ■■■□□□□□□□
    I see what you saying about the 2195456. That used to be the feasible distance for the route going out f0/0 before the offset. This is in gns3. May try it on some real equipment to compare.
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