Patent Number: 7,787,476

Title: Layer 2 switch network system

Abstract: A layer 2 switch network system includes a terminal, an edge switch, and a Radius server that notifies the edge switch of a temporary MAC address allocated to the terminal. The edge switch stores therein swap data for associating the temporary MAC address with a real MAC address. When receiving a MAC frame from the terminal, the edge switch replaces the real MAC address of a source set in the MAC frame with the temporary MAC address of the source. When transmitting a MAC frame to the terminal, the edge switch replaces the temporary MAC address of a destination set in the MAC frame with the real MAC address of the destination.

Inventors: Shimizu; Keiichi (Tokyo, JP), Kuroda; Masahiro (Tokyo, JP)

Assignee: Mitsubishi Electric Corporation

International Classification: H04L 12/28 (20060101)

Expiration Date: 8/31/12018