350-401 · Question #1145
In a Cisco SD-Access environment, which function is performed by the border node?
The correct answer is D. Provide connectivity to traditional Layer 3 networks.. In a Cisco SD-Access environment, the border node is responsible for providing connectivity between the fabric domain and traditional Layer 3 networks.
Question
Options
- AConnect users and devices to the fabric domain.
- BGroup endpoints into IP pools.
- CProvide reachability information to fabric endpoints.
- DProvide connectivity to traditional Layer 3 networks.
How the community answered
(33 responses)- A3% (1)
- C6% (2)
- D91% (30)
Why each option
In a Cisco SD-Access environment, the border node is responsible for providing connectivity between the fabric domain and traditional Layer 3 networks.
Connecting users and devices to the fabric domain is primarily the role of the fabric edge node, which provides host onboarding.
Grouping endpoints into IP pools is a function configured in Cisco DNA Center and applied across the fabric, not exclusively a primary role of the border node itself.
Providing reachability information to fabric endpoints is a function of the Control Plane node, which uses LISP to map endpoint identifiers to their routable locations.
The border node in Cisco SD-Access acts as the gateway to external networks, translating fabric encapsulation like VXLAN into standard IP routing and exchanging routing information with non-fabric domains. It facilitates north-south connectivity for the fabric.
Concept tested: Cisco SD-Access Border Node function
Source: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
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