Art-Net vs sACN vs ALPINE

This guide compares three approaches to moving lighting control over IP networks. Art-Net and sACN are transport protocols for DMX. ALPINE is a secure, stateful control protocol designed for modern lighting systems. Understanding the difference helps you choose the right stack for reliability, scale, and trust.

What these protocols solve

Art-Net and sACN answer a transport question: how do we send DMX over IP? They are intentionally stateless and assume a trusted network.

ALPINE answers a control-system question: who is allowed to control what, under which conditions, and how can this be verified? It introduces identity, authenticated discovery, negotiated sessions, and explicit ownership.

Art-Net: fast, simple, legacy-friendly

What it is: A UDP-based protocol that carries DMX universes over IP networks.

• Strengths: Easy to deploy, widely supported, low overhead, good for quick rigs.

• Limitations: Stateless, no authentication, no device identity, assumes a trusted local network.

Art-Net is excellent for fast setups and legacy compatibility, but it provides little control over who can send or receive data.

sACN (E1.31): scalable and standardized

What it is: An ANSI standard that streams DMX over IP with a more structured approach than Art-Net.

• Strengths: Better scaling semantics, multicast support, broader standardization.

• Limitations: Still transport-focused and largely trust-based, with no native authentication or ownership model.

sACN is a strong choice for large installations, but it remains a best-effort transport protocol.

ALPINE: secure, stateful control

What it is: A protocol that treats lighting as a system, not just a data stream. It supports cryptographic identity, authenticated discovery, negotiated control sessions, and structured messaging.

• Strengths: Identity-first devices, explicit ownership, secure discovery, and session-based control.

• Limitations: Beta status, with ecosystem maturity still developing across diverse real-world deployments.

ALPINE can tunnel raw DMX for compatibility, but its core model is higher-level intent and stateful control. It is open source and designed to replace transport-only models because identity and ownership are architectural concerns that cannot be bolted onto stateless protocols without redefining them.

Repository: https://github.com/alpine-core/protocol

Compatibility and migration

ALPINE can bridge to legacy DMX networks by tunneling DMX universes. This allows gradual migration: keep existing fixtures while introducing authenticated control and structured messaging at the system level.

How to choose today

• Small, fast, legacy rigs: Art-Net is often sufficient when the risk profile is low and the network is trusted.

• Large, structured installs: sACN provides clearer scaling and standardization when predictable distribution matters more than identity.

• Security-sensitive or modern systems: ALPINE is the right direction when device identity, ownership, and auditability are required.

If you need strong guarantees around control authority, traceability, and system integrity, a stateful protocol is essential.

Key takeaways

• Art-Net and sACN are transport protocols for DMX over IP.

• ALPINE is a secure, stateful control protocol that adds identity, authentication, and ownership.

• ALPINE is open source and in beta; the core protocol is stable, while the broader ecosystem is still maturing through field validation.

• Transport-only protocols cannot gain identity and session semantics without becoming fundamentally different protocols.

Choose the protocol that matches your system’s risk profile, scale, and need for control.