Nokia Exam 4A0-115 Topic 10 Question 36 Discussion

Actual exam question for Nokia's 4A0-115 exam

Question #: 36
Topic #: 10

[All 4A0-115 Questions]

Based upon the exhibit,

which of the following statements about the forwarding of BUM traffic is FALSE?

APE3 replicates the traffic and sends it to all PES in its VPLS I flooding list.

BPE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet segment.

CPEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.

DPE2 decapsulates the packets received from PE3 and forwards the frames to CE2.

Show Suggested Answer

Suggested Answer: A

The local AC tag ID configured on PE2 must match the local AC tag ID configured on PE1. This ensures that the tag IDs are consistent across both ends of the VPWS service.The remote AC tag ID configured on PE2 does not need to match the remote AC tag ID configured on PE3, as long as they are unique within each PE1.

Verified Reference:Ethernet Virtual Private Networks (EVPNs)

by Margurite at Feb 10, 2025, 12:59 AM

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Rusty

1 months ago

This exam question is a real head-scratcher. It's like trying to herd cats while juggling bowling balls! But hey, at least it's not a trick question about unicorns and rainbows, right?

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Mitzie

1 months ago

I think Option A is false. PE3 should be replicating the traffic and sending it to all PEs in its VPLS flooding list, not just the PEs.

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Meaghan

5 days ago

I agree, Option A is definitely false. PE3 should be replicating the traffic to all PEs in its VPLS flooding list.

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Lindsey

2 months ago

Option D is the correct answer. PE2 would decapsulate the packets received from PE3 and forward the frames to CE2.

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Alva

21 days ago

C) PEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.

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Kris

1 months ago

B) PE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet segment.

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Annamaria

1 months ago

A) PE3 replicates the traffic and sends it to all PEs in its VPLS I flooding list.

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Carin

2 months ago

Option B is incorrect. The ESI label is used to identify the Ethernet segment, not to send the traffic to PEI.

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Corrie

21 days ago

D) PE2 decapsulates the packets received from PE3 and forwards the frames to CE2.

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Justine

1 months ago

C) PEI forwards the traffic received from PE3 to CEI, and CEI discards it based upon the ESI label.

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Carlee

1 months ago

B) PE3 adds an ESI label to packets forwarded to PEI because PEI is connected to the same Ethernet segment.

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Noel

2 months ago

A) PE3 replicates the traffic and sends it to all PEs in its VPLS I flooding list.

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Starr

2 months ago

Option C is definitely false. The ESI label is added to identify the Ethernet segment, not to discard the traffic. PEI would forward the traffic to CE1, not discard it.

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