Failover Interface use case

Hello ecoumesh,

If I understood correctly, you use one interface for normal usage, and you want to add a second one for every case(if the first one become down).

If you don't mind to use both of the interfaces simultaneously, you may try with trunk (portchannel).

I hope here you can find explanation:

https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-routing-administration-12-1-0/3.html

Regards,

Preslav