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.:

US 8644309 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 04, 2014

Filed:

Sep. 22, 2011
Applicant:

Keisuke Fujita, Tokyo, JP;

Inventor:

Keisuke Fujita, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A quarantine deviceperforms processing on a network provided with a VLAN-aware Layer 2 Switch. The quarantine deviceincludes a terminal detection unitthat, when a single terminal is connected to a specified port of the Layer 2 Switchthrough a VLAN-unaware hub, detects a connection of a new terminalto the hub, and a switch control unitthat, upon detecting the connection of the new terminal, configures the specified port as a trunk port and, furthermore, configures a first VLAN, which transfers only Ethernet frames having preset tags attached thereto, and a second VLAN, which transfers only Ethernet frames having no tags attached thereto, on the specified port.


Find Patent Forward Citations

Fujita, Keisuke. (2014). Quarantine device, quarantine method, and computer-readable storage medium (U.S. Patent No. 8644309). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8644309

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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