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. 23, 2007
Filed:
Oct. 28, 2003
Kazuo Sugai, Ebina, JP;
Takeshi Aimoto, San Jose, CA (US);
Takeki Yazaki, Hachioji, JP;
Nobuhito Matsuyama, Hadano, JP;
Yoshihito Sako, Sagamihara, JP;
Tomohiko Tanabe, Hadano, JP;
Kazuo Sugai, Ebina, JP;
Takeshi Aimoto, San Jose, CA (US);
Takeki Yazaki, Hachioji, JP;
Nobuhito Matsuyama, Hadano, JP;
Yoshihito Sako, Sagamihara, JP;
Tomohiko Tanabe, Hadano, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A network relaying apparatus and method for routing and transferring packets at high speed. A transfer engine stores the packets received through a network interface in a packet buffer, and stores the header information in a header RAM. A search engine searches the transfer control information including the transfer destination information and the action information in accordance with the header information, and writes it in the header RAM. The transfer engine produces an output packet based on the information stored in the packet buffer and the header RAM and outputs it to the transfer destination. A switch switches the output packet to the routing process of the destination. The transfer engine executes the receiving process and the transmission process, and the search engine executes the input search process and the output search process. Each of these processes is executed by pipelining control using a required table independently.