Nec Corporation

Shingo Furuhashi

Toshio Ishizuka

In an ATM-LAN network, a number of ports of a bridge are uniquely identified by port numbers and connected to LAN segments and an ATM network. A MAC frame from a source terminal is received at a first port and buffered in a FIFO and a search is made through a memory for an entry containing the destination address of the frame. If the entry is found, the frame is forwarded onto a second port identified by a port number contained in the entry. If the entry is not found, an address resolution request is sent to a LAN emulation server via the ATM network to obtain an ATM address corresponding to the destination address of the frame. A connection setup request is sent to the ATM network to establish a virtual connection in the ATM network according to the destination ATM address. The frame is then forwarded onto the port to which the ATM network is connected.

Growing community of inventors

Tokyo, Japan

Shingo Furuhashi