360 Smart Cloud

Mar 6, 2024 · Cloud Computing

Overlay Networking and Inter‑Node Traffic Forwarding in Virtualized Cloud Environments

This article explains how virtual machine traffic is forwarded across compute nodes in an IAAS cloud using overlay protocols such as VXLAN, detailing L2/L3 inter‑node forwarding, control‑plane designs, and forwarding‑plane implementations with Linux‑Kernel OVS, DPDK, NIC offload, and VDPA.