What is the most unlikely cause for a VRRP group experiencing a two-master fault?

What is the most unlikely cause for a VRRP group experiencing a two-master fault?

• A. The two devices have differing configurations.
• B. There is a fault in the link for transmitting VRRP Advertisement packets.
• C. The backup group incorrectly discards packets due to lower priority.
• D. The master device sends a VRRP Advertisement packet every 5 seconds.

Answer: (D)

In a Virtual Router Redundancy Protocol (VRRP) setup, a two-master fault occurs when both routers in the VRRP group believe they are the master and thus attempt to forward packets. The scenario outlined in the correct choice describes a situation that is highly unlikely to contribute to this fault. The master device sending VRRP Advertisement packets every 5 seconds is, in fact, a standard behavior of VRRP. VRRP is designed to send these advertisements at regular intervals to inform the backup routers about which router is currently the master. This periodic communication helps ensure that backup routers remain informed and can take over reliably if the master fails. Since this is a normal operating procedure and does not influence the election process adversely, it is unlikely to be a cause of a two-master situation. In contrast, the other options present scenarios that are more plausible causes for a two-master condition. For example, differing configurations between the two devices could lead to each device considering itself the master based on distinct priorities or advertisements. A fault in the link that transmits VRRP Advertisement packets could also prevent one of the routers from receiving the advertisements, causing it to assume that it must take on the master role. Lastly, if a backup group incorrectly discards packets due to a

In a Virtual Router Redundancy Protocol (VRRP) setup, a two-master fault occurs when both routers in the VRRP group believe they are the master and thus attempt to forward packets. The scenario outlined in the correct choice describes a situation that is highly unlikely to contribute to this fault.

The master device sending VRRP Advertisement packets every 5 seconds is, in fact, a standard behavior of VRRP. VRRP is designed to send these advertisements at regular intervals to inform the backup routers about which router is currently the master. This periodic communication helps ensure that backup routers remain informed and can take over reliably if the master fails. Since this is a normal operating procedure and does not influence the election process adversely, it is unlikely to be a cause of a two-master situation.

In contrast, the other options present scenarios that are more plausible causes for a two-master condition. For example, differing configurations between the two devices could lead to each device considering itself the master based on distinct priorities or advertisements. A fault in the link that transmits VRRP Advertisement packets could also prevent one of the routers from receiving the advertisements, causing it to assume that it must take on the master role. Lastly, if a backup group incorrectly discards packets due to a