The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2008
Filed:
Feb. 24, 2003
Applicant:
Noriyasu Katoh, Shinagawa-ku, JP;
Inventor:
Noriyasu Katoh, Shinagawa-ku, JP;
Assignee:
Allied Telesis K.K., , JP;
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
The frame disassembly unit receives the MAC frame to insert/identify a destination address and tag. The information retrieval unit retrieves the VLAN information DB to discover the tag and port which correspond to the destination address. The type determination unit determines whether the MAC frame received is unicast, multicast or broadcast. The unicast transmission control unit controls the switching device so as to transmit the MAC frame to the communication node of the destination. The multicast transmission control unit controls the switching device so as to confine within a VLAN to transmit the MAC frame by multicast or broadcast.