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Cisco Exam 400-007 Topic 3 Question 34 Discussion

Actual exam question for Cisco's 400-007 exam
Question #: 34
Topic #: 3
[All 400-007 Questions]

Refer to the exhibit.

Company XYZ BGP topology is as shown in the diagram. The interface on the LA router connected toward the 10.1.5.0/24 network is faulty and is going up and down, which affects the entire routing domain. Which routing technique can be used in the routing policy design so that the rest of the network is not affected by the flapping issue?

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Suggested Answer: D

by Nobuko at Mar 04, 2024, 10:32 AM

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Deangelo
20 days ago
You know, I was just thinking the same thing. Route filtering is a more direct approach and might be a better option if the flapping is really problematic.
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Bernadine
21 days ago
But what if the flapping is really severe? Route dampening might not be enough to completely isolate the issue. Option B, using route filtering on the Chicago router to block the 10.1.5.0/24 network, could be a more reliable solution.
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Tequila
22 days ago
I think option A is the way to go. Using route dampening on the LA router for the 10.1.5.0/24 network will help suppress the route updates when the interface is flapping, so the rest of the network won't be affected.
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Jaime
23 days ago
Hmm, this is a tricky one. The issue seems to be with the interface on the LA router, which is causing the 10.1.5.0/24 network to flap up and down. We need to find a way to isolate that problem and prevent it from affecting the rest of the network.
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Beckie
3 days ago
C: Good point, route filtering might be too broad of a solution in this case
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Lenita
4 days ago
D: It might be better to isolate the problem at the source, the LA router, to avoid unnecessary traffic filtering
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Regenia
5 days ago
C: What about using route filtering on Chicago router to block the 10.1.5.0/24 network?
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Werner
6 days ago
A: Yes, route dampening can help stabilize the routing table in case of flapping interfaces
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Jade
7 days ago
B: That sounds like a good solution to prevent the flapping from affecting the rest of the network
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Dewitt
8 days ago
A: Use route dampening on LA router for the 10 1 5 0/24 network so that it does not get propagated when it flaps up and down
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