Cisco Certified Network Professional 2025 – 400 Free Practice Questions to Pass the Exam

In RPR (Redundant Port Router) mode, the role of the backup supervisor is critical for ensuring seamless network operations in case the active supervisor fails. When the active supervisor goes down, the backup supervisor must take over the responsibilities to maintain the network's functionality.

Choosing to fully load and initialize Layer 2 (L2) information is essential because it enables the backup supervisor to have all the necessary L2 state information to effectively manage traffic and communications in the network. This process involves acquiring and configuring details such as MAC address tables, VLAN configurations, and other Layer 2 protocols that are critical for data link layer operations. By properly loading this information, the backup supervisor can ensure that the transition is smooth and that any ongoing traffic continues without disruption.

In scenarios where the backup supervisor would instead boot from scratch, load configuration for immediate operations, or start with degraded performance, there might be limitations in terms of capabilities or efficiency. Booting from scratch could lead to a prolonged downtime as the system initializes and loads necessary configurations. Loading configuration for immediate operations may not guarantee that all relevant L2 state information is immediately available, which could lead to data loss or misdirected traffic during failover. Starting with degraded performance indicates that the supervisor is not operating at