In the HSRP failover process, what occurs after the forwarding router fails?

In the HSRP failover process, what occurs after the forwarding router fails?

• A. The standby router stops seeing hello messages from the forwarding router
• B. The virtual router assumes both the IP and MAC addresses of the original router
• C. The standby router takes over the active role immediately
• D. All routers reset and traffic stops

Answer: (A)

In the HSRP (Hot Standby Router Protocol) failover process, when the forwarding router fails, the first notable event is that the standby router no longer receives hello messages from the forwarding router. Hello messages are periodically sent by the active router to inform the standby router that it is still operational. When these messages cease for a defined interval, the standby router determines that the active router is down. This loss of hello messages prompts the standby router to initiate the failover process, where it transitions to the active role and takes over the responsibility for routing traffic. To further clarify, while the assumption of IP and MAC addresses occurs as part of the failover process, it is predicated on the standby router no longer detecting hello messages from the active router. Hence, the first observable change is indeed the cessation of hello messages. In contrast, the other options do not accurately describe the sequence following the failure of the forwarding router. The standby router does not take over immediately; it must first confirm the active router's failure by not receiving hello messages. The reset of all routers and traffic stoppage also doesn't occur in a typical HSRP failover scenario, as the standby router is designed specifically to ensure continued routing operations even during a fail

In the HSRP (Hot Standby Router Protocol) failover process, when the forwarding router fails, the first notable event is that the standby router no longer receives hello messages from the forwarding router. Hello messages are periodically sent by the active router to inform the standby router that it is still operational. When these messages cease for a defined interval, the standby router determines that the active router is down.

This loss of hello messages prompts the standby router to initiate the failover process, where it transitions to the active role and takes over the responsibility for routing traffic. To further clarify, while the assumption of IP and MAC addresses occurs as part of the failover process, it is predicated on the standby router no longer detecting hello messages from the active router. Hence, the first observable change is indeed the cessation of hello messages.

In contrast, the other options do not accurately describe the sequence following the failure of the forwarding router. The standby router does not take over immediately; it must first confirm the active router's failure by not receiving hello messages. The reset of all routers and traffic stoppage also doesn't occur in a typical HSRP failover scenario, as the standby router is designed specifically to ensure continued routing operations even during a fail