A network engineer is deciding whether to use stateful or stateless failover when configuring two ASAs for high availability. What is the connection status in both cases?
A.
need to be reestablished with stateful failover and preserved with stateless failover
B.
preserved with stateful failover and need to be reestablished with stateless failover
C.
preserved with both stateful and stateless failover
D.
need to be reestablished with both stateful and stateless failover
Stateful failover means that the connection state information is replicated from the active ASA to the standby ASA, so that in the event of a failover, the connections are preserved and do not need to be reestablished. Stateless failover means that the connection state information is not replicated, so that in the event of a failover, the connections are dropped and need to be reestablished by the end hosts. Stateful failover provides a smoother transition and less disruption to the network traffic, while stateless failover is simpler and less resource-intensive. References:
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