300-420 Question 233
Select 3A company is designing its Cisco SD-WAN network to interconnect 50 branch offices with two data centers. The design must ensure high availability for the control plane, provide redundancy for the overlay fabric, and support future scalability. Which of the following design considerations should the company prioritize to meet these requirements?
- A
Deploy multiple vBond orchestrators in geographically diverse data centers.
- B
Use a single vManage instance to simplify management and reduce costs.
- C
Implement dual WAN edge routers at each branch office and data center.
- D
Ensure the use of OSPF or BGP for LAN-side routing at all branches.
- E
Segment the overlay fabric into VPNs for different business functions.
Show answer and explanation
Correct answers: A, C, E
Explanation
To meet the requirements for high availability, redundancy, and scalability in an SD-WAN environment, it is essential to deploy redundant control plane components (vBond), use dual WAN edge devices for overlay redundancy, and segment the overlay fabric for scalability. These design considerations ensure that the network remains robust, reliable, and scalable for future growth.
- A. Correct.
Deploying multiple vBond orchestrators in geographically diverse data centers improves control plane high availability and ensures redundancy in case one orchestrator becomes unavailable.
- B. Incorrect.
Using a single vManage instance may simplify management but introduces a single point of failure, which is unsuitable for high availability and scalability requirements.
- C. Correct.
Implementing dual WAN edge routers at each site ensures overlay fabric redundancy and provides high availability for both branch and data center connectivity.
- D. Incorrect.
While OSPF or BGP can improve LAN-side routing, it does not directly address control plane high availability, overlay redundancy, or scalability.
- E. Correct.
Segmenting the overlay fabric into VPNs supports scalability and allows for separation of different business functions, which is critical for a growing organization.