Refer to the exhibit.

The customer requires fast failover if any one link or core device fails. Which additional technology should the architect plan on the core VSF fabric to meet these criteria?
Refer to the exhibit.
The customer requires fast failover if any one link or core device fails. Which additional technology should the architect plan on the core VSF fabric to meet these criteria?
The customer requires fast failover if any one link or core device fails. OSPF graceful restart ensures non-stop routing in such scenarios by allowing the routers to restart the OSPF process without disrupting the routing stability. It helps maintain the routing tables and reduces downtime during failovers.
Answer is A. - OSPF graceful restart ensures non-stop routing when a VSF of backplane stacking master fails. The master maintains routing tables and routing protocol information in its control plane. The master proxies this information to other member's control planes, but if the master fails, the routing processes must restart on the new master.
Answer should be A
Why not D (VRRP)?