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:
Apr. 21, 2009
Filed:
Mar. 10, 2005
Hironori Mieno, Kawasaki, JP;
Youichi Konuma, Kawasaki, JP;
Jyunichi Shimada, Kawasaki, JP;
Koichi Saiki, Kawasaki, JP;
Takashi Okuda, Kawasaki, JP;
Takanori Sasaki, Yokohama, JP;
Hironori Mieno, Kawasaki, JP;
Youichi Konuma, Kawasaki, JP;
Jyunichi Shimada, Kawasaki, JP;
Koichi Saiki, Kawasaki, JP;
Takashi Okuda, Kawasaki, JP;
Takanori Sasaki, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.