Celluster™ AI Fabric Immune System

Protecting GPUs, NVLink & RoCE from DoS / NoS.
AI Clusters • HPC Fabrics • GPU / NVLink / RoCE
No one protects the fabric. Celluster makes it immune.

Most “AI security” tools stop at pods, VMs, APIs, or models. Meanwhile, attackers can quietly drain GPUs, saturate NVLink, or flood RoCE, turning an AI cluster into a very expensive heater while dashboards stay green.

Celluster is an AI fabric immune system: Reflex Cells sit beside GPUs and NICs, enforcing declared intent and shutting down DoS / NoS at the hardware edge, before it becomes an outage.

See Why Fabric Is Exposed How Reflex Cells Defend

The Category

Celluster = Fabric Immune System, not another scanner.

Celluster is not runtime scanning, not EDR, and not a container or model security product. It is a reflexive substrate that makes NVLink, RoCE and GPU fabrics self-defending.

Think of it as: “immune system for the AI fabric”
sitting under today’s clusters and meshes, enforcing intent where packets and DMA actually flow.

Cartoon comparing today’s AI fabric on fire with Celluster Reflex Cells acting as an immune system around GPUs, NVLink and RoCE.
Left: AI fabric DoS / NoS hiding behind green dashboards.
Right: Reflex Cells enforcing intent at the GPU, NVLink and RoCE edge — a true fabric immune system.

AI Cluster & Fabric DoS / NoS

When the GPUs are melting, the logs still look fine.

A modern attacker doesn’t need a science-fiction “AI virus.” They just need to turn your AI fabric against you:

  • GPU DoS: wasteful kernels keep SMs at 100% and VRAM exhausted.
  • Thermal pressure: sustained overload forces throttling and node dropouts.
  • NVLink saturation: pointless traffic keeps gradient sync permanently late.
  • RoCE / RDMA floods: low-value memory transfers clog east–west bandwidth.

To users and SREs, this just looks like “the cluster is slow today.” To an attacker, it’s a very quiet, very effective DoS.

Pods are fine. TLS is fine. Dashboards are green. The fabric is on fire.

Why Today’s Stack Can’t See It

Workload security ≠ fabric security.

Most tooling was built for CPU-era problems and control planes:

  • Kubernetes / Slurm: schedule jobs; they don’t understand NVLink or RDMA intent.
  • SDN / meshes: enforce L3/L4/L7 policy; the fabric is just “fast pipes.”
  • EDR / workload agents: see processes and syscalls, not GPU training flows.
  • Control planes: react at API and human speeds, not at fabric speeds.

We have excellent research on side-channels, timing and vulnerabilities — but production defenses are still glued to pods, IPs and YAML.

In other words: we built a helmet for the rider and forgot the brakes on the bike.

Celluster: Reflex Cells on the Fabric

From “observe and pray” → to “detect and reflex.”

Celluster introduces Reflex Cells as a substrate that lives beside GPUs, NICs and fabrics — not just in front of services.

Each Cell carries:

  • Identity: who this Cell is.
  • Intent: how much GPU / fabric it should consume and how.
  • Lineage: where it came from — which tenant, app family, or job.
  • Reflex rules: what to do when behavior doesn’t match intent.

Instead of waiting for a controller to notice a problem, the fabric reacts locally:

  • Misbehaving Cells can be isolated or decayed at the edge.
  • Suspicious patterns trigger rate limits or reroutes in milliseconds.
  • Healthy Cells continue uninterrupted; only the noisy lineage gets contained.

Today’s Defenses vs Fabric-Native Reflex

What changes when security becomes part of the substrate.

Attack Type Today’s Reality With Celluster Reflex Cells
GPU compute flood Cluster slows down; looks like “busy but healthy.” Usage that violates intent is pinned to a lineage and automatically constrained or shut down.
NVLink saturation Training jobs miss windows; root cause unclear. Cells causing abnormal intra-node chatter are slowed or isolated before they starve everyone else.
RoCE / RDMA flood Inter-node congestion, timeouts, paging SREs at 3am. Reflex rules cut low-value fabric traffic from the offending Cells before congestion cascades.
Cryptojacking on GPUs Looks like “high utilization” in dashboards. Patterns that don’t match declared intent are flagged and decayed automatically.

Outages as Comic Relief (Until They’re Real)

What the comic shows — and why it matters.

Close-up cartoon of GPUs and fabric links under attack on the left, and Reflex Cells enforcing limits on the right.
Left: GPUs sweating, NVLink and RoCE abused while graphs stay green.
Right: Reflex Cells quietly enforcing intent on the fabric in real-time.

The cartoon is funny because it’s true: most AI outages start in places our tools don’t look. Celluster’s claim is simple:

Don’t bolt “AI security” onto the side.
Make the AI fabric itself reflexive and self-protecting.