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Cisco Exam 300-410 Topic 12 Question 96 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 96
Topic #: 12
[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"?

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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 Truman at Aug 29, 2024, 01:15 AM

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Winfred
10 days ago
Option D is like using duct tape to fix a leaky faucet. Nope, not going there. B seems like the appropriate solution to me.
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Kanisha
14 days ago
But wouldn't configuring the ip ospf network broadcast command on the interfaces of R1 and R2 also work?
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Eladia
16 days ago
Aha, I got it! The key is the network type. B is the correct answer to set the interfaces to point-to-point mode.
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Amira
23 days 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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Catarina
23 days ago
Haha, D is a good one. Manually configuring the neighbor is the lazy way out. I'd go with B or C, but I'm still scratching my head on this one.
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Gilma
7 days ago
User2: Yeah, I think B or C would be the better options for resolving the issue.
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Carma
12 days ago
User1: I agree, manually configuring the neighbor seems like a shortcut.
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Honey
1 months ago
Hmm, I'm not sure. The MTU setting seems irrelevant here, so I'll rule out A. D looks like a band-aid fix, so I'm leaning towards B or C.
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Tammara
7 days ago
User1: Let's go with B then.
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Ahmad
9 days ago
User2: I agree, configuring the ip ospf network point-to-point command makes sense.
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Keneth
20 days ago
User1: I think B is the correct option.
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Kanisha
1 months 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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Melina
1 months ago
I think the answer is B. The ip ospf network point-to-point command should resolve the issue by configuring the interfaces for point-to-point communication.
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Carlene
17 days ago
User1: Let's try option B first and see if it resolves the issue.
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Dominga
25 days ago
User3: I'm not sure, maybe we should also consider option D.
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Meaghan
26 days ago
User2: I agree, configuring the ip ospf network point-to-point command should work.
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Boris
1 months ago
User1: I think the answer is B.
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