Hi i have scenario two router running ospfv2 connected with two link 5ghz and 60ghz the ospf now working load balancing but i need force traffic goes on 60ghz when fail the traffic goes on 5ghz

i tried change cost but everything go fail

Edit cost on 5Ghz to more than default. 50, 100, 150, anything. Then it will flow to lower cost (60Ghz).

And some feature maybe, add bfd to interface 60Ghz and 5Ghz, then check ospf "use bfd" for faster failover than default dead timer ospf.