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Huawei Exam H12-261_V3.0 Topic 1 Question 43 Discussion

Actual exam question for Huawei's H12-261_V3.0 exam
Question #: 43
Topic #: 1
[All H12-261_V3.0 Questions]

RTA is the source DR router and RTB is the RP router. The multicast source sends multicast data to the RIA, but the RIB cannot see the multicast source registered to it through the PIM Register message. What are the possible reasons?

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Suggested Answer: A, B, C, D

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Queen
4 months ago
Another possibility could be that the RP is statically configured on the multicast network, while the RTA router is not statically configured with the RP.
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Yvonne
4 months ago
That could definitely be a reason. If the RP elected by RTA is not RTB, then RIB won't be able to see the multicast source.
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Domonique
4 months ago
What about the possibility that the RP elected by RTA is not RTB?
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Queen
4 months ago
I agree with you, Yvonne. If RTB fails the RPF check of the source, RIB won't be able to see the multicast source.
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Yvonne
4 months ago
I think the reason why RIB cannot see the multicast source is because there is no unicast route from RTB to RTA.
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Brock
5 months ago
It could be a possibility. If RTA and RTB are not correctly synchronized in terms of RP, it could lead to issues with multicast routing.
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Jannette
5 months ago
But what if the RP elected by RTA is not RTB? Could that also be a reason?
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Rachael
6 months ago
Yes, that makes sense. If there is no unicast route from RTB to RTA, it could cause problems.
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Jacinta
6 months ago
I think the issue could be related to the RPF check failing on RTB.
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