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Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
Select 2 answers.
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A. Requires synchronization between supervisors to guarantee continuous connectivity. — Stateful Switchover (SSO) synchronizes state information between the active and standby supervisors so the standby can take over if the active supervisor fails. C. Must be combined with NSF to support uninterrupted Layer 3 operations. — Nonstop Forwarding (NSF) works with SSO to maintain Layer 3 packet forwarding during a supervisor switchover while routing protocols re-establish their control-plane adjacencies.
A&C answer are cirrect
I agree with A+C NSF Operation Cisco NSF always runs with SSO and provides redundancy for Layer 3 traffic. NSF works with SSO to minimize the amount of time that a network is unavailable to its users following a switchover. The main purpose of NSF is to continue forwarding IP packets following a supervisor engine switchover. https://www.cisco.com/en/US/docs/general/Test/dwerblo/broken_guide/nsfsso.html#wp1023627