350-401 Question 55
Select 3An organization is transitioning from a traditional campus network to a hybrid network with SD-Access. They want to ensure that devices in the traditional campus network can communicate with devices in the SD-Access fabric without issues. Which of the following steps must be taken to achieve interoperability between the two network types?
- A
Configure an external Border Node in the SD-Access fabric to handle traffic to and from the traditional network.
- B
Enable LISP on all devices in the traditional campus network.
- C
Use VRFs to ensure segregation of traffic between the traditional network and the SD-Access fabric.
- D
Ensure that the IP addressing scheme is consistent between the traditional network and the SD-Access fabric.
- E
Deploy a shared DNS server for both the traditional network and the SD-Access fabric.
Show answer and explanation
Correct answers: A, C, D
Explanation
To enable interoperability between a traditional campus network and an SD-Access fabric, it is critical to configure an external Border Node to serve as the gateway between the two networks. Additionally, traffic segmentation using VRFs ensures that traffic is logically separated and routed correctly. Lastly, a consistent IP addressing scheme across the networks avoids communication issues. Other options, like enabling LISP on traditional devices or deploying a shared DNS server, are not necessary for basic interoperability.
- A. Correct.
Correct: An external Border Node serves as the integration point between the SD-Access fabric and the traditional network, allowing traffic to flow between the two.
- B. Incorrect.
Incorrect: LISP (Locator/ID Separation Protocol) is a key protocol within the SD-Access fabric, but it is not required to be enabled on the traditional campus network.
- C. Correct.
Correct: VRFs (Virtual Routing and Forwarding) allow logical separation of traffic between different parts of a network, ensuring proper traffic segmentation and interoperability.
- D. Correct.
Correct: Ensuring a consistent IP addressing scheme is crucial for seamless communication between the traditional network and the SD-Access fabric.
- E. Incorrect.
Incorrect: While a shared DNS server may provide name resolution for devices, it is not a requirement for achieving interoperability between the two networks.