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:
Jan. 29, 2008
Filed:
Dec. 16, 2004
Yoshiaki Horinouchi, Yokohama, JP;
Hiroshi Yamada, Yokohama, JP;
Hironori Ochiai, Yokohama, JP;
Takashi Yamamoto, Yokohama, JP;
Yoshiaki Horinouchi, Yokohama, JP;
Hiroshi Yamada, Yokohama, JP;
Hironori Ochiai, Yokohama, JP;
Takashi Yamamoto, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a router supporting a packet relay function based on a routing table, and also a VPN (Virtual Private Network) function, an output port deciding portion decides an output port different from a normal output port indicated as an output port corresponding to a destination address of a communication confirming packet based on the routing table, and packet transmitter transmits the communication confirming packet through the decided output port. A communication confirming packet determining portion determines a communicating state based on a response packet for the communication confirming packet received from the destination router of the communication confirming packet returned from another router connected to the output port and relayed by its own router.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile