Discuss Nokia 4A0-115 Exam Topic 10 Question 36

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.

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)

Get Premium 4A0-115 Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

34 comments · newest first

Odette 11 months ago

B seems off to me, PEI shouldn't need an ESI label.

Shawn 11 months ago

I think D is the false statement here.

Elsa 11 months ago

Wait, is PEI really discarding packets based on the ESI label?

Florinda 11 months ago

Totally agree, that's how VPLS works!

Aleshia 12 months ago

PE3 sends traffic to all PES in the flooding list.

Kindra 12 months ago

I feel like option D is the false one because I thought PE2 only forwards traffic to CE2 if it’s not BUM traffic.

Bonita 1 year ago

I practiced a similar question where PEI had to discard traffic based on labels, so option C might be true, but I'm not 100% confident.

Carli 1 year ago

I'm not entirely sure about option B; I remember something about ESI labels but can't recall if they are added when PEI is on the same segment.

Hana 1 year ago

I think option A sounds correct because PE3 should replicate and send BUM traffic to all PES in the flooding list, right?

Pearline 1 year ago

Okay, let me think this through step-by-step. I need to focus on the forwarding of BUM traffic and determine which statement is incorrect.

Crista 1 year ago

I'm feeling confident about this one. The key is to identify the statement that is false based on the information given in the exhibit.

Slyvia 1 year ago

The exhibit provides a good visual to help understand the network topology. I'll use that to methodically evaluate each answer choice.

Della 1 year ago

Hmm, I'm a bit confused by the VPLS and ESI label concepts. I'll need to review those topics before attempting this question.

Cecilia 1 year ago

This question looks tricky, but I think I can figure it out if I carefully analyze the exhibit and the answer choices.

Rusty 1 year 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?

Mitzie 1 year 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.

Benton 1 year ago

↳ replying to Mitzie

I think Option C is the false statement. PEI forwards the traffic to CEI, not discards it based on the ESI label.

Nadine 1 year ago

↳ replying to Mitzie

But what about Option B? PE3 adding an ESI label to packets forwarded to PEI seems correct to me.

Meaghan 1 year ago

↳ replying to Mitzie

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

Lindsey 1 year ago

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

Alva 1 year ago

↳ replying to Lindsey

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

Kris 1 year ago

↳ replying to Lindsey

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

Annamaria 1 year ago

↳ replying to Lindsey

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

Carin 2 years ago

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

Corrie 1 year ago

↳ replying to Carin

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

Justine 1 year ago

↳ replying to Carin

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

Carlee 1 year ago

↳ replying to Carin

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

Noel 1 year ago

↳ replying to Carin

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

Starr 2 years 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.

Minna 1 year ago

↳ replying to Starr

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

Billy 1 year ago

↳ replying to Starr

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

Berry 2 years ago

But C makes sense because CEI would discard the traffic based on the ESI label.

Gilma 2 years ago

I disagree, I believe the answer is D.

Berry 2 years ago

I think the answer is C.

Nokia 4A0-115 Exam - Topic 10 Question 36 Discussion