VXLAN is an overlay technology used to build large virtual networks across existing Layer 2 and Layer 3 infrastructures. Spirent TestCenter VXLAN emulation, now part of VIAVI, offers an intuitive interface for creating large multi‑segment environments with multiple virtual machines and VTEPs to validate VXLAN‑enabled devices. It supports reporting VTEP forwarding rates at various table sizes using benchmarking methods such as RFC 2544, 2889, and 3918. The solution also enables testing of network delay, buffer capacity, and overall VXLAN performance, ensuring reliable operation in scalable virtualized data center networks.

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