Final answer:
If one CNI-MS SP fails and redundancy is in place, the system will switch to a standby SP with minimal disruption. Without redundancy, there could be a loss of network connectivity or service degradation until the issue is resolved.
Step-by-step explanation:
If one CNI-MS SP (Control Network Interface - Main Switch Processor) fails, several outcomes could occur depending on the system's redundancy configurations. High availability systems are designed to handle such failures smoothly. Typically, the system would failover to a standby or secondary SP, ensuring continued network operations with minimal disruption.
During this transition, there might be a very brief outage as the failover mechanism activates, but well-designed systems keep this to a minimum. In a scenario where redundancy is not in place, the failure of an SP could lead to loss of network connectivity or degradation of network services until the failed component is replaced or repaired.