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Question 320 - 350-601 discussion

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Refer to the exhibit.

Refer to the exhibit. SVR-A in EPG-A/BD-A fails to reach SVR-B in EPG-B/BD-B. Which two conditions should be verified to analyze the traffic between the two EPGs? (Choose two.)

A.

A contract exists between EPG-A and EPG-B and allows the traffic.

Answers
A.

A contract exists between EPG-A and EPG-B and allows the traffic.

B.

Limit Endpoint Learning is disabled on the bridge domain for EPG-B.

Answers
B.

Limit Endpoint Learning is disabled on the bridge domain for EPG-B.

C.

SVR-B is learned as an endpoint in EPG-B from Node-112.

Answers
C.

SVR-B is learned as an endpoint in EPG-B from Node-112.

D.

EPG-A and EPG-B are excluded from the preferred group.

Answers
D.

EPG-A and EPG-B are excluded from the preferred group.

E.

The bridge domain for EPG-B floods ARP packets.

Answers
E.

The bridge domain for EPG-B floods ARP packets.

Suggested answer: A, C

Explanation:

When SVR-A in EPG-A/BD-A cannot reach SVR-B in EPG-B/BD-B, it's crucial to ensure that a contract exists between EPG-A and EPG-B that permits the traffic (Option A). Contracts in Cisco ACI act as a policy framework that dictates the types of traffic allowed between EPGs. Without an appropriate contract, traffic will not be allowed to pass between these entities.

Additionally, verifying that SVR-B is learned as an endpoint in EPG-B from Node-112 (Option C) is essential. Endpoint learning within ACI is a process where the leaf switch learns about the endpoints connected to it. If Node-112 has not learned SVR-B as an endpoint, it will not be able to forward traffic to it, resulting in connectivity issues.

asked 10/10/2024
Michał Wojciechowski
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