What is a false statement regarding PIM-SM Hello packets?

PIM-SM (Protocol Independent Multicast - Sparse Mode) Hello packets play a crucial role in maintaining PIM neighbor relationships, and they are not limited to being sent only during the route establishment phase. Instead, these packets are sent periodically as a way to check on the status of neighbors and ensure that the multicast routing topology remains correctly updated.

The correct choice indicates that the statement about PIM-SM Hello packets being sent only when establishing routes is false because Hello packets are actually exchanged regularly to keep neighbor relationships alive and confirm connectivity between routers. This periodic exchange helps ensure that routers can efficiently participate in the multicast routing process and quickly adapt to any topology changes within the network.

In summary, PIM-SM Hello packets are not only about establishing routes; they are a vital part of ongoing operations, which includes maintaining relationships with other routers in the multicast network, allowing for continued communication and dynamic adjustments as network conditions change.