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:
Aug. 29, 2017
Filed:
Oct. 04, 2013
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Tomoyoshi Tatsumi, Tsuchiura, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A communication system and a network relay device capable of improving failure tolerance are provided. For example, three port switches, fabric switches, and user switches are provided, and two of the port switches configure a multi-chassis link aggregation device. Each of the fabric switches detects the number of the port switches (for example, two switches) connected without failure while logically regarding the port switches configuring the multi-chassis link aggregation device as one switch, and transmits the number of the switches (two switches) from three ports. Each of the port switches sets a link aggregation group for two of the ports which have received the largest number of the switches (two switches).