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:
Jun. 02, 2015
Filed:
Feb. 18, 2011
Youichi Hidaka, Tokyo, JP;
Masashi Hayashi, Tokyo, JP;
Shihomi Sato, Tokyo, JP;
Tsugio Okamoto, Tokyo, JP;
Takashi Yokota, Tokyo, JP;
Masanori Takashima, Tokyo, JP;
Koichi Tsuchiya, Tokyo, JP;
Minaxay Philavong, Tokyo, JP;
Tetsu Izawa, Tokyo, JP;
Youichi Hidaka, Tokyo, JP;
Masashi Hayashi, Tokyo, JP;
Shihomi Sato, Tokyo, JP;
Tsugio Okamoto, Tokyo, JP;
Takashi Yokota, Tokyo, JP;
Masanori Takashima, Tokyo, JP;
Koichi Tsuchiya, Tokyo, JP;
Minaxay Philavong, Tokyo, JP;
Tetsu Izawa, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
In a switching node, high-speed and advanced service protocol processing function is achieved by utilizing an external control server without affecting performance of conventional service protocol processing. Specifically, a forwarding engine has PCI express and an LAN interface. Depending on a type of an input packet, destination of the packet is switched to the PCI express side for conventional network service and to the LAN interface side for extended network service that cooperates with the external control server. A CPU having the PCI express and the LAN interface is provided ahead of the LAN interface. The CPU performs communication of service inquiry with the external control server at high speed via the LAN interface. After response from the control server is obtained, setting of the forwarding engine is performed through the PCI express.