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:
Sep. 10, 2024

Filed:

Feb. 05, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventor:

Tetsuro Nakamura, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2018.01); H04L 49/25 (2022.01); H04L 49/90 (2022.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); H04L 49/25 (2013.01); H04L 49/90 (2013.01); G06F 2009/45562 (2013.01); G06F 2009/45595 (2013.01);
Abstract

A patch controller, when removal of a to-be-deleted node on a virtual path is detected, extracts a node immediately before deletion located adjacently to and on an upstream side of the to-be-deleted node on the virtual path and a node immediately after deletion located adjacently to and on a downstream side of the to-be-deleted node, forms a bypass path for discharging a queued packet being processed by the to-be-deleted node to the node immediately after deletion, and a changed path excluding the to-be-deleted node from the virtual path, by making a connection so as to cause a transfer packet from the node immediately before deletion to flow to the node immediately after deletion, and prioritizes processing of discharging the queued packet to the node immediately after deletion on the bypass path over processing of transferring the transfer packet to the node immediately after deletion on the changed path.


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