Setting EIGRP Route Preference on subinterfaces

[Pkirchgessner1]

I have a 2921 with G0/0 plugged into a trunk port on a catalyst 3850. The 2921 has multiple 802.1q subinterfaces defined on it. Both the 3850 and the 2921 are running EIGRP. Two VLANS (20 and 21) are in the same AS. Right now their metrics are the same and some routes use the VLAN20 subinterface and others use the VLAN21 subinterface as their next hop. 

I want VLAN20 (G0/0.20) to be the preferred route with VLAN21 being the FS. I have tried adjusting the delay of the 2921 subinterface G0/0.21 to 2000useconds however the 3850 still shows that both are equal successors instead of one being a feasible successor.

What am I doing wrong? I've attached some of the output of the 2921 and the 3850.

[Jon Marshall · Accepted solution]

You are applying the delay to the wrong device.

If you want to influence the route(s) the 3850 uses then apply the delay to the SVI on the 3850.

Jon

[Pkirchgessner1]

ok, thanks got it!.