LANforge Ice can be used to simulate a Wide Area Network with multiple locations.
Simulates WAN or LAN latencies - WAN Emulation
Some users may want to simulate an entire LAN or WAN network. LANforge ICE supports this with it's Netsmith feature. Netsmith shown below is a click-and-drag virtual network builder. It supports Bridges (switches) including spanning tree protocol, as well as OSPF, BGP, RIP and multicast routers. IPv4 and IPv6 routing protocols are supported, and the bridge will handle any Ethernet frame. LANforge is running real router and bridge software, so it can exchange messages with external equipment to populate routes and set up spanning trees.
Software and Hardware for a Virtual Network solution is customized for a users requirements.