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Cisco 300-410 Exam - Topic 13 Question 92 Discussion

Refer to the exhibit.Refer to the exhibit R1 cannot establish a neighbor relationship with R2 Which action resolves the issue"?
A) Configure the mtu Ignore command on the Interfaces of R1 and R2
B) Configure the ip ospf network point-to-point command on the interfaces of R1 and R2
C) Configure the ip ospf network broadcast command on the interfaces of R1 and R2
D) Configure the neighbor 2.2.2.2 command on R1 under the OSPF process

Cisco 300-410 Exam - Topic 13 Question 92 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 92
Topic #: 13
[All 300-410 Questions]

Refer to the exhibit.

Refer to the exhibit R1 cannot establish a neighbor relationship with R2 Which action resolves the issue"?

Show Suggested Answer Hide Answer
Suggested Answer: A

In OSPF (Open Shortest Path First), the MTU (Maximum Transmission Unit) size must match on both sides of a link for OSPF neighbors to form an adjacency12.If the MTU sizes do not match, the OSPF adjacency will not form, and the routers will not become neighbors12.

In this case, R1 cannot establish a neighbor relationship with R2.One possible reason for this could be a mismatch in the MTU size on the interfaces of R1 and R212.

To resolve this issue, you can configure themtu ignorecommand on the interfaces of R1 and R2 (Option A).This command allows OSPF to ignore the MTU size when determining if it can form an adjacency with a neighbor12.This means that even if the MTU sizes do not match, OSPF will still form an adjacency, and R1 and R2 will become neighbors12.


OSPF MTU Mismatch - NetworkLessons.com

Understanding OSPF MTU Mismatch Conditions and Solutions - Cisco

by Blair at Jun 30, 2024, 02:53 AM

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Francesco
9 months ago
I thought D was the answer, but I guess not!
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Teri
9 months ago
C is also a valid option, but B seems more straightforward.
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Jodi
10 months ago
Wait, are we sure about that? What if the MTU is the issue?
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Britt
10 months ago
Definitely agree with B, it’s the standard fix.
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Bernardo
10 months ago
I think option B is the right choice for OSPF.
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Elmer
10 months ago
I vaguely recall that specifying a neighbor IP can help with establishing relationships, but I’m not confident if that’s the best solution here.
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Georgene
11 months ago
I’m a bit confused about the broadcast vs. point-to-point commands. I feel like I need to double-check which one applies to this scenario.
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Cecil
11 months ago
I think we practiced a question similar to this where configuring OSPF network types was key. Maybe the point-to-point option is correct?
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Andree
11 months ago
I remember something about MTU settings affecting neighbor relationships, but I'm not sure if "mtu ignore" is the right command here.
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Shawnna
11 months ago
I'm pretty confident this is a point-to-point network, so I'll go with option B and configure the ip ospf network point-to-point command.
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Freeman
11 months ago
Okay, I've got a strategy. I'll focus on the network type configuration first, since that seems to be the root cause of the problem.
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Latanya
11 months ago
Hmm, I'm a bit confused by the options here. I'll need to carefully review the OSPF network types and how they impact neighbor relationships.
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Keva
11 months ago
This looks like a classic OSPF configuration issue. I think the key is to determine the network type between the two routers.
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Vincenza
11 months ago
Okay, let me take my time with this. I'll methodically go through each image, make notes on the key features, and then choose the best match.
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Verdell
11 months ago
Option B looks like the clear winner to me. Exporting the logs to BigQuery and setting the table expiration to 60 days is the most efficient way to analyze the data and follow Google's best practices. I feel confident in this solution.
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Ronny
11 months ago
Hmm, this looks like a tricky one. I'll need to think carefully about the features available to Global applications.
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Edward
2 years ago
Wait, are we sure this isn't just a typo in the configuration? Maybe we need to double-check the interfaces before jumping to any conclusions.
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Stephane
2 years ago
We should verify before making any changes.
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Karrie
2 years ago
Maybe it's just a typo in the configuration.
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Maurine
2 years ago
Let's double-check the interfaces first.
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Frankie
2 years ago
We should verify before making any changes.
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Lynelle
2 years ago
Maybe there's a typo in the configuration.
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Carmelina
2 years ago
Let's double-check the interfaces first.
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Vivan
2 years ago
Haha, the neighbor command? Really? That's like trying to set a blind date for your routers. I'd go with the OSPF network broadcast option.
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Stephanie
2 years ago
Neighbor command seems like a long shot. OSPF network broadcast sounds more reasonable.
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Larae
2 years ago
I would go with the point-to-point option instead.
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Pedro
2 years ago
Yeah, I agree. I think OSPF network broadcast is the way to go.
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Marion
2 years ago
Haha, blind date for routers? That's funny.
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Felton
2 years ago
But wouldn't configuring the ip ospf network broadcast command on the interfaces of R1 and R2 also work?
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Ruby
2 years ago
I'm not sure about that. Shouldn't we be looking at the OSPF network type instead? The point-to-point command seems like the right fix to me.
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Lina
2 years ago
Let's go ahead and try that fix on both R1 and R2 interfaces.
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Isaiah
2 years ago
I think you're right. Configuring the ip ospf network point-to-point command should help establish the neighbor relationship.
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Lemuel
2 years ago
I disagree, I believe the correct answer is D) Configure the neighbor 2.2.2.2 command on R1 under the OSPF process.
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Felton
2 years ago
I think the answer is B) Configure the ip ospf network point-to-point command on the interfaces of R1 and R2.
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Alyce
2 years ago
The MTU issue is definitely the culprit here. Configuring the MTU Ignore command is the way to go.
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Francisca
2 years ago
B) I agree, that should fix the problem.
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Rima
2 years ago
A) Configure the mtu Ignore command on the Interfaces of R1 and R2
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