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. 08, 2013
Filed:
Sep. 19, 2008
Seigo Sawada, Osaka, JP;
Takumi Iwai, Osaka, JP;
Yoshinari Oshio, Osaka, JP;
Takao Nakamura, Osaka, JP;
Tsuneyuki Takai, Osaka, JP;
Seigo Sawada, Osaka, JP;
Takumi Iwai, Osaka, JP;
Yoshinari Oshio, Osaka, JP;
Takao Nakamura, Osaka, JP;
Tsuneyuki Takai, Osaka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An IP address and a MAC address of each of communication devices connected to a plurality of communication ports provided in a switching hub device are associated in an ARP table. Also, priority information representing the communication priority of each communication device is received, and the received priority information is associated with the MAC address of the communication device. When no IP address of a transmission source included in a data packet received at each communication port exists in the ARP table, the IP address and the MAC address of the transmission source are added to the ARP table and priority information is attached to the ARP table.