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:
Feb. 05, 2013
Filed:
Mar. 03, 2010
Koji Hachiya, Fukuoka, JP;
Tetsuo Ehara, Fukuoka, JP;
Yasuyuki Mitsumori, Kawasaki, JP;
Kanta Yamamoto, Kawasaki, JP;
Junichi Kawaguchi, Fukuoka, JP;
Yuichiro Katsura, Fukuoka, JP;
Koji Hachiya, Fukuoka, JP;
Tetsuo Ehara, Fukuoka, JP;
Yasuyuki Mitsumori, Kawasaki, JP;
Kanta Yamamoto, Kawasaki, JP;
Junichi Kawaguchi, Fukuoka, JP;
Yuichiro Katsura, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A packet processing apparatus includes a plurality of communication connecting unit each connected with a communication partner apparatus using one of a work path and a protection path, connecting unit for connecting, using a data bus, the plurality of communication connecting unit with one another; determination unit for, when a packet sent from the communication partner apparatus is received by one of the communication connecting unit, determining whether the packet is a maintenance packet that is used for monitoring a connection state with the communication partner apparatus; and transmitting unit for, when it is determined that the packet is a maintenance packet by the determination unit, transmitting the maintenance packet to the plurality of communication connecting unit using the data bus via the connecting unit.