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Question 563 - 300-410 discussion

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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

Answers
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

Answers
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

Answers
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

Answers
D.

Configure the neighbor 2.2.2.2 command on R1 under the OSPF process

Suggested answer: A

Explanation:

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

asked 07/10/2024
Arushi Rastogi
29 questions
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