VXLAN VTEP

In VXLAN, a VTEP (VXLAN Tunnel Endpoint) is a device or software component that facilitates the encapsulation and decapsulation of Layer 2 Ethernet frames for transport over a Layer 3 IP network. It serves as the entry and exit point in a VXLAN overlay, adding a VXLAN header, including the VXLAN Network Identifier (VNI), to the original Ethernet frame during encapsulation.

This encapsulated frame is then routed over the IP infrastructure using UDP. Upon reaching the destination VTEP, the VXLAN header is removed, and the original Ethernet frame is delivered to the appropriate device or virtual machine. VTEPs are critical for mapping VLANs to VNIs and ensuring seamless communication across the VXLAN network, whether implemented in physical network switches or virtualized hypervisors.

Link:

https://networklessons.com/vxlan/introduction-to-virtual-extensible-lan-vxlan