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Question 5 - 300-410 discussion

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Refer to the exhibit.

The output of the trace route from R5 shows a loop in the network. Which configuration prevents this loop?

A.


Answers
A.


B.


Answers
B.


C.


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C.


D.

Option D

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D.

Option D

Suggested answer: A

Explanation:

The reason for the loop is that R2 is forwarding the packets destined to 10.1.1.1 to R4, instead of R1.

This is because in the redistribute OSPF statement, BW metric has a higher value and delay has a value of 1. So, R2 chooses R4 over R1 for 10.1.1.0/24 subnet causing a loop. Now, R5 learns 10.1.1.0/24 from R3 and advertises the same route to R4, that R4 redistributes back in EIGRP. If R3 sets a tag of 1 while redistributing EIGRP in OSPF, and R4 denies all the OSPF routes with tag 1 while redistributing, it will not advertise 10.1.1.0/24 back into EIGRP. Hence, the loop will be broken.

asked 07/10/2024
Jose M Rivera Vega
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