When a switch with dual route processors using stateful switchover (SSO) loses the primary RP, which two conditions occur?
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Correct answer: Data forwarding can continue along known paths until routing protocol information is restored., The standby route processor is fully initialized and state information is maintained..
Why this is the answer
When a switch with SSO loses its primary Route Processor (RP), the standby RP immediately takes over as the new active RP. This is because the standby RP is already fully initialized and has been continuously synchronizing state information (like forwarding tables and interface states) from the primary RP. This state synchronization allows data forwarding to continue uninterrupted along known paths, as the new active RP has the necessary information to maintain the data plane. Routing protocols will then reconverge in the background to update any dynamic routing information. User sessions are not immediately recreated; instead, they are maintained because the stateful information is preserved during the switchover. The standby RP is not initialized after the failure; it is already initialized and ready to take over before the failure.
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