VIRTUAL PRIVATE NETWORK FORMING SYSTEM AND METHOD

摘要

In a network system composed of an ATM network and a plurality of frame relay networks, a first VPN-capable edge device transfers a packet to a second VPN-capable edge device through a virtual channel connection (VCC) of a virtual private network (VPN), wherein the packet is received from a user router belonging to the VPN and the virtual channel connection is determined depending on a layer-3 destination address of the packet and a VPN identifier assigned to the VPN.