What is the role of a fabric border node in Cisco SD-Access?
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Correct answer: To connect the Cisco SD-Access fabric to another fabric or external Layer 3 networks..
Why this is the answer
A fabric border node in Cisco SD-Access is responsible for connecting the SD-Access fabric to external Layer 3 networks or other SD-Access fabrics. It acts as the gateway for traffic entering and exiting the fabric, performing routing lookups and enforcing policies between the fabric and external domains. Collecting traffic flow information (NetFlow/IPFIX) is typically a function of a control plane node or dedicated monitoring tools, not the primary role of a border node. Attaching and registering clients to the fabric is the role of a fabric edge node. Handling an ordered list of IP addresses and locations for endpoints is the function of the control plane node (LISP Map-Server/Map-Resolver).
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