What function does VXLAN perform in a Cisco SD-Access deployment?
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A. B. C. D.C.
In a Cisco SD-Access (Software-Defined Access) deployment, VXLAN (Virtual Extensible LAN) is used for data plane forwarding.
VXLAN is a tunneling protocol used to extend Layer 2 networks over Layer 3 networks. It is commonly used in data center environments to create overlay networks and provide network virtualization. In a Cisco SD-Access deployment, VXLAN is used to create overlay networks between the SD-Access fabric edge nodes (also called border nodes) and the core nodes (also called control plane nodes).
The SD-Access fabric edge nodes are responsible for connecting endpoints (such as user devices, servers, and IoT devices) to the network. The edge nodes encapsulate the Layer 2 traffic from the endpoints into VXLAN packets and forward them to the core nodes. The core nodes then de-encapsulate the VXLAN packets and forward the original Layer 2 traffic to its destination.
By using VXLAN, SD-Access can create a unified fabric that spans across multiple physical locations and supports a large number of endpoints. VXLAN also allows for the use of network segmentation and policy-based forwarding, which enhances the security and performance of the network.
Therefore, the correct answer to the question is C. data plane forwarding. VXLAN is used for data plane forwarding in a Cisco SD-Access deployment.