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The maintained version now lives at ProxMox Cluster - Soup-to-Nutz, part of scyto/homelab-docs.

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geosp

Thunderbolt Networking Setup on Linux

This guide documents the steps to enable and configure Thunderbolt networking on your Linux system (e.g., Ubuntu, Proxmox). It covers loading the necessary kernel modules, ensuring persistent interface naming, configuring a fixed IP address, and testing throughput with iperf3. Note that Thunderbolt 3/4 hardware advertises a raw bandwidth of 40 Gbps, but practical throughput is typically lower due to half‑duplex operation, protocol overhead, and system constraints.

Hardware Used in This Guide

This guide was developed and tested with the following hardware:

• CPU: AMD Ryzen 9 PRO 6950H
  • 8 cores / 16 threads
• 3.3 GHz base frequency / 4.94 GHz boost