Which node provides the endpoints to a single anycast Layer 3 gateway?
- control plane node
- border node
- edge node
- intermediate node
Explanation: In a Cisco SD-Access fabric, the edge node is the component that provides first-hop services for users and devices (endpoints) connected to the fabric. A critical function of the edge node is providing the anycast Layer 3 gateway.
The anycast gateway uses a common IP and MAC address that is present on every edge node sharing a common EID (Endpoint Identifier) subnet. This mechanism ensures that when an endpoint moves from one edge node to another, it does not need to change its default gateway configuration, facilitating seamless host mobility and optimal forwarding. While the control plane node manages the host tracking database and the border node acts as the exit point for the fabric, it is the edge node that directly interfaces with endpoints to provide this unified gateway service.
Related exam: Modules 23 – 26: Checkpoint Exam: Software-Defined Networking Answers (CCNP ENCOR v9)
