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:
Dec. 15, 2015
Filed:
May. 22, 2012
Kentaro Sonoda, Tokyo, JP;
Hideyuki Shimonishi, Tokyo, JP;
Masayuki Nakae, Tokyo, JP;
Masaya Yamagata, Tokyo, JP;
Yoichiro Morita, Tokyo, JP;
Kentaro Sonoda, Tokyo, JP;
Hideyuki Shimonishi, Tokyo, JP;
Masayuki Nakae, Tokyo, JP;
Masaya Yamagata, Tokyo, JP;
Yoichiro Morita, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A communication system includes an information acquisition unit that acquires information for determining an isolation level to which a user terminal belongs, from the user terminal; an isolation level determination unit that determines an isolation level to which the user terminal belongs, based on the acquired information; an isolation level information storage unit that defines whether or not access is possible to respective access destinations for each isolation level; an access control unit that causes a forwarding node(s) to implement forwarding or dropping of a packet, in accordance with whether or not access is possible to the respective access destinations; and a forwarding node(s) that forwards a packet in accordance with control of the access control unit. Stepwise access control is realized using isolation levels.