We have a building that is connected to us via a layer 2 FSO link. The switch in that remote building routes over to a small transport lan on vlan 44 to make this happen. For DR we are considering bringing in Comcast fiber which will provide an Ethernet hand-off from a Ciena 1RU edge device. We already have an established Comcast WAN with other locations.
Basically can this 3750x switch stack run ip sla so if it detects loss of network via ping to our HQ via the FSO link, it can switch in secondary routes that steer the traffic over the backup (and slower) provider wan link?
Or do we have to slot in a router like a 1911 or 2901 with the data licence?