How does SSO work with HSRP to minimize network disruptions?

Question

Options

• AIt enables HSRP to elect another switch in the group as the active HSRP switch.
• BIt ensures fast failover in the case of link failure.
• CIt enables data forwarding along known routes following a switchover, white the routing protocol
• DIt enables HSRP to failover to the standby RP on the same device.

• B
  7% (2)
• C
  3% (1)
• D
  90% (27)

Explanation

SSO and HSRP Working Together

Why D is Correct: SSO (Stateful Switchover) is a high-availability feature that synchronizes state information between the active and standby Route Processors (RPs) on the same device. When the active RP fails, SSO enables HSRP to seamlessly failover to the standby RP on the same physical switch without losing HSRP state information, minimizing disruption to network traffic.

Why the Distractors Are Wrong:

• A is wrong because SSO operates within a single device between its RPs - it does not involve electing a different switch in the HSRP group; that describes standard HSRP behavior without SSO.
• B is wrong because fast link failover is associated with features like BFD (Bidirectional Forwarding Detection) or HSRP timers, not specifically SSO.
• C is wrong because that description better fits NSF (Non-Stop Forwarding), which maintains data forwarding while routing protocols reconverge after a switchover - a separate but complementary technology to SSO.

Memory Tip: Think of SSO as keeping everything "Staying on the Same bOx" - the failover happens between two RPs within one device, not between separate switches in the network.

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