EVN

Easy Virtual Network (EVN) is an IP-based virtualization technology that provides end-to-end virtualization of multiple networks. With EVN, you can use a single IP infrastructure to provide separate virtual networks whose traffic paths remain isolated from each other. You can leverage the same physical infrastructure multiple times by supporting multiple groups, each with their own logical network and unique routing and forwarding tables.
A switched virtual circuit (SVC) is a virtual circuit that is dynamically established on demand and is torn down when transmission is complete. SVCs are used in situations where data transmission is sporadic. SVCs are not virtualization solutions that will allow you to create two separate virtual networks.
A virtual LAN (VLAN) is a group of devices on a LAN that are configured so that they can communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. VLANs are not virtualization solutions that will allow you to create two separate virtual networks.
A virtual private network (VPN) connects two private networks over a publicly-accessible network such as the Internet. VPNs are often used by employees working from home, employees on the road, customers, or business partners wishing to share information. VPNs are not virtualization solutions that will allow you to create two separate virtual networks.