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Nokia 4A0-103 Exam - Topic 3 Question 109 Discussion

Click on the exhibit.A fully loose LSP "toR6" is enabled with FRR protection. All links have the same cost. After the link between R2 and R4 goes down, FRR protection repairs the LSP and traffic traverses on R1-R2-R7-R8-R4-R6. Which of the following about this CSPF-enabled LSP on an Alcatel-Lucent 7750 SR is TRUE?
A) The LSP will stay on the current path indefinitely unless another failure occurs.
B) The LSP will stay on the current path until the resignal timer expires.
C) The LSP will switchover to R1-R2-R3-R5-R6 after the resignal timer expires.
D) The LSP will switchover to R1-R3-R5-R6 after the retry timer expires.

Nokia 4A0-103 Exam - Topic 3 Question 109 Discussion

Actual exam question for Nokia's 4A0-103 exam
Question #: 109
Topic #: 3
[All 4A0-103 Questions]

Click on the exhibit.

A fully loose LSP "toR6" is enabled with FRR protection. All links have the same cost. After the link between R2 and R4 goes down, FRR protection repairs the LSP and traffic traverses on R1-R2-R7-R8-R4-R6. Which of the following about this CSPF-enabled LSP on an Alcatel-Lucent 7750 SR is TRUE?

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Suggested Answer: A

by Lachelle at Mar 20, 2025, 08:54 PM

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Fannie
7 months ago
No way, it's definitely not going to R1-R3-R5-R6!
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Brandee
7 months ago
Wait, is it really going to stay there indefinitely?
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Doretha
7 months ago
The LSP will stay on the current path until the resignal timer expires.
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Macy
8 months ago
I think it might switch to R1-R2-R3-R5-R6 after the timer.
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Norah
8 months ago
Totally agree with that!
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Karrie
8 months ago
I recall that FRR is supposed to quickly reroute traffic, but I can't remember if it stays on the new path indefinitely or if it eventually checks for a better route.
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Jackie
8 months ago
I’m a bit confused about the difference between the resignal timer and the retry timer. I feel like I might mix them up during the exam.
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Ceola
8 months ago
This question seems similar to one we practiced where we discussed LSP paths and timers. I think the LSP might stay on the current path until the resignal timer expires.
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Destiny
9 months ago
I remember studying about LSPs and FRR, but I'm not entirely sure how the resignal timer works in this scenario.
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Dell
9 months ago
Okay, I think I've got it. The LSP will stay on the current path indefinitely after the FRR protection kicks in, unless another failure occurs or the resignal timer expires, which could trigger a switchover to a different path. Option B seems to be the correct answer.
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Meaghan
9 months ago
Based on the details provided, I'm leaning towards option B. The LSP should stay on the current path until the resignal timer expires, at which point it may switch to a different path. But I'll double-check my reasoning.
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Patti
9 months ago
I'm a bit confused by the different timer options mentioned. I'll need to review my MPLS knowledge to understand the difference between the resignal and retry timers and how they impact the LSP behavior.
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Long
9 months ago
Okay, the key information seems to be that the LSP is using FRR protection and all links have the same cost. I think the answer has to do with how the LSP reacts after the link failure is repaired.
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Catalina
10 months ago
Hmm, this looks like a tricky MPLS question. I'll need to carefully read through the details and think through the FRR protection and resignal timer behavior.
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Pearline
1 year ago
Option C looks promising, but I'm not convinced. Wouldn't the LSP just try to find the shortest path after the resignal timer expires? I'm going to have to think this one through a bit more.
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Elouise
1 year ago
Let's review the options again to make sure we understand the behavior correctly.
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Henriette
1 year ago
I agree, but I'm not sure if it will switch over to another path after that.
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Zachary
1 year ago
I think the LSP will stay on the current path until the resignal timer expires.
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Keneth
1 year ago
Haha, the question is talking about an Alcatel-Lucent 7750 SR, which sounds like a fancy piece of networking gear. I wonder if they have a 'Shake and Bake' version for the rest of us.
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Arlette
1 year ago
I wonder if they have a 'Shake and Bake' version for us regular folks.
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Stefania
1 year ago
Yeah, that makes sense. It's all about that timer.
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Pamella
1 year ago
I think the LSP will stay on the current path until the resignal timer expires.
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Alline
1 year ago
I'm not sure about this one. The question mentions FRR protection, so I'm guessing the LSP won't switch to a new path unless another failure occurs.
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Keith
1 year ago
Definitely. It's always good to be prepared for any unexpected events.
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Aliza
1 year ago
Yes, FRR protection is crucial for ensuring network reliability.
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Steffanie
1 year ago
That makes sense. It's important to have protection in place in case of failures.
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Coleen
1 year ago
I think you're right. The LSP will stay on the current path indefinitely unless another failure occurs.
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Pete
1 year ago
Option B seems like the correct answer. The LSP will stay on the current path until the resignal timer expires, after which it will re-optimize and find a new path.
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Lucia
1 year ago
But why do you think that?
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Edmond
1 year ago
I disagree, I believe the answer is C.
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Lucia
1 year ago
I think the answer is B.
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