I have a network where (6) Layer 2 switches are daisychained together with a router on each end:
Can you think of anyway to provide redundancy if a link failure occurs between one of the switches without making them Layer 3(or spending extra money)? The routers will never know if a link fails between the switches because its directly connected switch will keep the router interface up. Any suggestions? The 2 routers are running HSRP, but when a link fails between the sw's, both routers become active and continue to advertise the route causing a black hole in some instances. All Vlans are being trunked in both directions. Your suggestions are appreciated.