VLANy

VLANy is a software platform for configuring and managing virtual LANs in modern multi-switch networks. It provides a centralized controller that defines VLANs, assigns ports, and enforces segmentation policies across devices from multiple vendors. The system supports standard 802.1Q tagging and both trunk and access port configurations, enabling consistent VLAN provisioning and traffic isolation across distributed networks.

VLANy can operate as an on-premises appliance, a software-only deployment, or a cloud-based service, with options for high availability and disaster recovery. It offers a RESTful API and a web-based user interface, along with command-line tools for automation and scripting.

Its core features include policy-based segmentation, VLAN templating, and automated provisioning. The platform maintains a centralized inventory of VLANs, port assignments, and device capabilities, and provides change management, auditing, and role-based access control to support governance.

VLANy uses a modular architecture comprising a central controller, device adapters or plugins, and optional agents running on network devices. It can integrate with existing network management systems and supports standard management protocols such as SNMP, NETCONF/RESTCONF, and vendor APIs.

Typical use cases include enterprise campus networks, data center cabling, and service provider environments where consistent VLAN policies must be enforced across multiple devices and geographies. The platform also supports design validation and what-if simulations to test configurations before deployment.

Limitations include reliance on device API availability and compatibility, potential licensing costs, and the need for operator training to leverage the automation features. As with any centralized control plane, security and access control are critical considerations.

See also: Virtual LAN, 802.1Q, VLAN tagging, network automation, software-defined networking.