| 摘要 |
<p>In a network system composed of an ATM network (10) and a plurality of frame relay networks (11-13, a first VPN-capable edge device (101-103) transfers a packet to a second VPN-capable edge device (101-103) through a virtual channel connection (VCC) of a virtual private network (VPN), wherein the packet is received from a user router (105-107) 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. <IMAGE></p> |
