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Open Switch (OPX)

Open Switch (OPX) is an open-source network Operating System (OS) (network infrastructure) for data center and enterprise switches built on Linux and disaggregated hardware.

  • Linux-based network OS (network OS) for white-box and open networking switches.
  • Supports disaggregated switching architectures with separate hardware and software procurement (network infrastructure).
  • Provides a Hardware Abstraction Layer (HAL) and switch services for Layer 2/Layer 3 forwarding (routing and switching).
  • Integrates with standard Linux tools and interfaces for configuration, management, and automation (infrastructure automation).
  • Targets data center and enterprise deployments requiring programmable, open switching platforms (data center networking).

More About Open Switch (OPX)

Open Switch (OPX) is an open-source network OS (network OS) designed to run on open networking and white-box switches in data center and enterprise environments. It builds on a Linux base and provides switching and routing functions through a set of switch-related services and abstraction layers that interface with merchant silicon and platform hardware.

The project addresses the problem space of disaggregated networking (network infrastructure), where organizations separate the choice of switch hardware from the choice of network OS. OPX allows operators to deploy a consistent software stack across different supported hardware platforms while retaining the Linux user space environment familiar to many infrastructure and operations teams.

OPX provides a HAL (hardware abstraction) that maps generic switch services to vendor-specific Application-Specific Integrated Circuit (ASIC) and platform drivers. Above this layer, OPX includes components for Layer 2 switching and Layer 3 routing (routing and switching), VLANs, link aggregation, and related data plane functions where supported by the underlying hardware. The system exposes standard Linux interfaces, enabling the use of common tools for system management, logging, and automation (infrastructure automation), as well as integration with higher-level orchestration frameworks.

From an architectural perspective, OPX runs as a Linux distribution tailored for switching platforms (network infrastructure), with user space daemons implementing switch and routing control logic and kernel-level modules or drivers interfacing with the forwarding hardware. This structure allows operators to use familiar package management, configuration file patterns, and scripting approaches, aligning network switch operations with general Linux server operations.

In enterprise or institutional environments, OPX can be used to build data center leaf-spine fabrics, aggregation layers, or other switching roles, depending on platform support and deployment design (data center networking). Its open-source model enables organizations and vendors to extend platform support, integrate additional monitoring or telemetry agents (observability), or customize configuration workflows while still relying on a common base distribution.

Within a technical directory and taxonomy, Open Switch (OPX) maps to categories such as network operating systems, data center switching software, and open networking platforms (network infrastructure). It is relevant for teams evaluating disaggregated switching, Linux-based network OS stacks, and programmable switching environments that align operationally with existing Linux-based tooling and practices.