300-420 · Question #389
In PIM sparse mode, if an RPF check is successful on a multicast-enabled device, what happens to the multicast packet?
The correct answer is C. It is forwarded to all interfaces within the OIL. In PIM sparse mode, when a multicast-enabled device performs a Reverse Path Forwarding (RPF) check and it is successful, the multicast packet is forwarded to all interfaces listed in the Outgoing Interface List (OIL). The OIL contains the set of interfaces where the multicast…
Question
In PIM sparse mode, if an RPF check is successful on a multicast-enabled device, what happens to the multicast packet?
Options
- AIt is forwarded to all interfaces except for the receiving interface.
- BIt is forwarded to all PIM-enabled interfaces.
- CIt is forwarded to all interfaces within the OIL.
- DForwarded packets are dropped to prevent looping.
How the community answered
(27 responses)- A4% (1)
- B4% (1)
- C93% (25)
Explanation
In PIM sparse mode, when a multicast-enabled device performs a Reverse Path Forwarding (RPF) check and it is successful, the multicast packet is forwarded to all interfaces listed in the Outgoing Interface List (OIL). The OIL contains the set of interfaces where the multicast packet should be sent to reach the interested receivers. This ensures efficient and loop-free multicast traffic delivery.
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