Comprehensive and Detailed Explanation (200-250 words):
In a VXLAN-based virtualized campus network, user terminals located in different access locations communicate with each other overVXLAN tunnelsestablished between VXLAN Tunnel Endpoints (VTEPs).
These VXLAN tunnels form the overlay network, which abstracts the physical underlay and enables flexible Layer 2 and Layer 3 connectivity across the campus.
When communication is confined within the virtualized campus network, traffic remains inside the VXLAN overlay and is encapsulated and forwarded between VTEPs. However, when users or services inside the VXLAN network need to accessexternal networks, such as traditional IP networks, the Internet, or data centers that do not support VXLAN, traffic must exit the VXLAN overlay. This function is performed by border nodes.
Border nodes act as the boundary between the VXLAN overlay and non-VXLAN networks. They are responsible for VXLAN encapsulation and decapsulation, routing between VXLAN segments and external networks, and enforcing security and policy controls at the network edge. According to HCIP Datacom Campus Network architecture principles, all traffic entering or leaving the VXLAN-based campus must pass through border nodes to ensure proper routing, policy enforcement, and service control.
Therefore, the statement is TRUE, and option A is correct.