A network design shows two routers that are directly connected to an Ethernet switch using optical
connections. There is an OSPF adjacency between the routers. In this design, which solution
ensures that interface-down detection is reported as quickly as possible to the IGP?
optimized OSPF SPF timers
Bidirectional Forwarding Detection
automatic protection switching
optimized OSPF LSA timers
Ethernet OAM CFM monitoring