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:
May. 13, 2014
Filed:
Nov. 23, 2011
Tomoyoshi Tatsumi, Tsuchiura, JP;
Shingo Sugawara, Tsuchiura, JP;
Tomoyoshi Tatsumi, Tsuchiura, JP;
Shingo Sugawara, Tsuchiura, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A network relay system () includes a plurality of IFSs () and a plurality of FSs (). The IFSs (to) are each connected to the FSs (to) through physical lines. In the IFSs (), an LAG is set for ports connected to the FSs (). The IFSs () and the FSs () transmit/receive a detection frame to/from each other, and when the detection frame fails to be received, it is determined that a failure has occurred within the network relay system (). When one of the FSs () determines that a failure has occurred, the one of the FSs () transmits a failure notification frame to the plurality of IFSs (), and each of the plurality of IFSs () excludes the port that has received the failure notification frame from the LAG.