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.

Date of Patent:
Feb. 16, 2021

Filed:

Jan. 16, 2019
Applicant:

Fujitsu Limited, Kawasaki, JP;

Inventor:

Masayuki Ono, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 41/0813 (2013.01); H04L 41/0681 (2013.01); H04L 43/10 (2013.01); H04L 43/0811 (2013.01);
Abstract

A device includes a first port in which a first address as a monitoring point is set and which is connected to one communication line belonging to a link aggregation group to which another communication line for another device also belongs, and a processor configured to transmit and receive a monitoring frame based on the first address through the first port, switch an operating state of the first port to an active state or a standby state, and restrict the transmission and the reception of the monitoring frame through the first port when the operating state of the first port is switched to the standby state, wherein the first address is identical to a second address which is set as a monitoring point in a second port of the other device connected to the other communication line belonging to the link aggregation group to which the one communication line belongs.


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