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:
Dec. 20, 2016

Filed:

Feb. 17, 2015
Applicant:

Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;

Inventors:

Makoto Yasuda, Tsuchiura, JP;

Shigeru Tsubota, Tsuchiura, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/24 (2006.01); H04L 12/741 (2013.01); H04L 12/939 (2013.01); H04L 12/709 (2013.01);
U.S. Cl.
CPC ...
H04L 41/0654 (2013.01); H04L 45/245 (2013.01); H04L 45/745 (2013.01); H04L 49/557 (2013.01);
Abstract

Each of MCLAG devices has a MCLAG table, a port control unit, and a relay processing unit. The MCLAG table retains one or a plurality of first ports in association with a first identifier. The port control unit controls a first port group to transmission/reception permitted state when the first port group is set to active, and controls the first port group to a transmission prohibited state when the first port group is set to standby. The relay processing unit relays a frame containing the first identifier as a destination port to the first port group when the first port group is controlled to the transmission/reception permitted state, and relays the same to a bridge port when the first port group is controlled to the transmission prohibited state.


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