I have three buildings, they're all daisy-chained to each other via a fiber optic link. All of them have 2910al switches in them where the fiber optic terminates. Each fiber optic link is actually two pairs trunked as one link.
But I want to add a WiFi link as a backup, in case either one of the two fiber links gets cut. The fiber optic link would bypass building B, and go straight between buildings A and C.
I'm a little unclear as to how I should configure the spanning tree for this situation. The WiFi link is slower obviously, so I would want the switches only to use it if the fiber link was down.
