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:
May. 25, 2010
Filed:
Sep. 28, 2007
Yoshiyuki Maeda, Fukuoka, JP;
Hironori Kadota, Fukuoka, JP;
Yoko Toyozumi, Fukuoka, JP;
Yumiko Ogata, Fukuoka, JP;
Yoshiko Sakamoto, Fukuoka, JP;
Seiji Miyata, Fukuoka, JP;
Hiromu Yoshi, Fukuoka, JP;
Yoshiyuki Maeda, Fukuoka, JP;
Hironori Kadota, Fukuoka, JP;
Yoko Toyozumi, Fukuoka, JP;
Yumiko Ogata, Fukuoka, JP;
Yoshiko Sakamoto, Fukuoka, JP;
Seiji Miyata, Fukuoka, JP;
Hiromu Yoshi, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A frame forwarding apparatus comprises a receiving unit receiving a frame including a source address, a destination address and a VWAN identifier; a converting unit converting a VWAN identifier in the frame into one of degenerate VWAN identifiers that the number of adoptable values thereof is smaller than the number of VWAN identifiers; a storage unit containing at least one entry containing the source address in the frame, a degenerate VWAN identifier that a VWAN identifier in the frame is converted, and path information representing a path via which the frame is received; a retrieving unit retrieving, from said storage unit, an entry corresponding to the destination address in the frame and the degenerate VWAN identifier in the frame; a restoring unit restoring the degenerate VWAN identifier in the frame into the original VWAN identifier; and a transmitting unit transmitting the frame based on the path information in the entry retrieved.