300-420 · Question #68
Which feature is required for graceful restart to recover from a processor failure?
The correct answer is C. Stateful Switchover. Cisco Nonstop Forwarding (NSF) with Stateful Switchover (SSO) provides increased network service availability and protection against unplanned downtime due to hardware or software Cisco Nonstop Forwarding and Stateful Switchover are designed to be deployed together. NSF relies…
Question
Which feature is required for graceful restart to recover from a processor failure?
Options
- ACisco Express Forwarding
- BVirtual Switch System
- CStateful Switchover
- DBidirectional Forwarding Detection
How the community answered
(15 responses)- C93% (14)
- D7% (1)
Explanation
Cisco Nonstop Forwarding (NSF) with Stateful Switchover (SSO) provides increased network service availability and protection against unplanned downtime due to hardware or software Cisco Nonstop Forwarding and Stateful Switchover are designed to be deployed together. NSF relies on SSO to ensure that links and interfaces remain up during switchover, and that lower layer protocol state is maintained. NSF is, however, configured separately and it is possible to enable SSO without NSF.
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