Virtual Tenant Network

Virtual Tenant Network (VTN) is a set of technology components that provides a multi-tenant virtual network through a controller. Traditionally, physical networks have been configured as silos for each department within an organization (or for each customer) by a service provider. This incurs huge, unneeded hardware investments and operating expenses due to the underutilized, redundant network equipment required to implement this scheme. The VTN addresses this problem by providing an abstraction that enables the complete separation of logical plane from physical plane of the network. This allows users to design and deploy virtual networks for their customers without needing to know the physical network topology or underlying operating characteristics. Once a network is defined using VTN, it is automatically mapped onto the underlying physical network by the controller. VTN in the Extreme Networks SDN Platform is an open source product from the OpenDaylight project (for more information, see https://wiki.opendaylight.org/view/OpenDaylight_Virtual_Tenant_Network_(VTN)).