Greetings,

Two buildings are connected with each other via Fiber link. I also have P2p2 wireless connectivity between both ends. now I want that if Fiber link goes down, the link should auto switch Wireless link and when revert back if fiber link restore.
Some one told me that I can do it with creating Bridge , what is the best way to do it? what options should I select in bridge ?

Use RSTP within a bridge interface.