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:
Mar. 31, 2020

Filed:

Jun. 29, 2015
Applicant:

Nec Corporation, Tokyo, JP;

Inventor:

Makoto Fujinami, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/08 (2006.01); H04L 12/931 (2013.01); H04W 36/02 (2009.01); H04W 80/10 (2009.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 67/148 (2013.01); H04L 49/70 (2013.01); H04L 67/141 (2013.01); H04L 67/143 (2013.01); H04W 36/02 (2013.01); H04W 80/10 (2013.01); H04L 12/4641 (2013.01);
Abstract

In a communication system, when a path is switched along with communication apparatus switchover, a packet sent/received via this path may be lost. A communication apparatus according to the present invention is characterized by including: a first means capable of operating a first network node on a virtual machine; and a second means capable of forwarding a control signal for terminating communication performed via a communication session established between the first network node and a third network node, to a virtual machine operating a second network node, in response to switchover from the first network node to the second network node corresponding to the first network node.


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