# Bad Influence story: Javier Bits explains wiring four DGX Sparks in a ring without a switch

Active · 1 article · 1 source · First reported 11-07 13:24. Times are ET.
Story page: https://badinfluence.news/story/b1e2c3ff-72e6-4107-99f8-09d3754d345f

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[Bad Influence external source material begins]
Latest update (11-07 13:24): Javier Bits explains a switchless four-node DGX Spark ring

Overview: Javier Bits says he connected four NVIDIA DGX Sparks in a closed ring without a switch, a setup he says NVIDIA's documentation does not support at four nodes. He cabled the units as 1 → 2 → 4 → 3 → 1 so that no link spans more than two machines, and he rebuilt the NFS mounts and SSH keys for the fourth Spark. He published a bash script for the setup.

According to his post, a switch is still required for more than four nodes, or for adding and removing machines without recabling.

Coverage timeline (newest first):
1. 11-07 13:24 · X search: indie AI launches (I built, solo founder) · [Javier Bits explains a switchless four-node DGX Spark ring](https://badinfluence.news/items/hoo08dcw2kitokf8wg3budsgl)
[Bad Influence external source material ends]

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