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:
Apr. 14, 2020

Filed:

Aug. 22, 2018
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Ryu Kobayashi, Kanazawa, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/50 (2006.01); H04L 12/715 (2013.01); H04L 29/06 (2006.01); H04L 12/741 (2013.01); H04L 12/46 (2006.01); H04L 12/721 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 45/04 (2013.01); H04L 12/46 (2013.01); H04L 45/66 (2013.01); H04L 45/74 (2013.01); H04L 69/22 (2013.01); H04L 69/324 (2013.01);
Abstract

A method executed in a plurality of domains, each of the plurality of domains including a plurality of switch apparatuses, the method includes receiving, by a first switch apparatus included in a first domain of the plurality of domains, a packet from a second domain, adding, to the packet, a header region in which a hop number of the packet is to be registered, transmitting the packet with the header region from the first switch apparatus to a second switch apparatus of the plurality of switch apparatuses included in the first domain, increasing the hop number registered in the header region in response to the transmitting of the packet from the first switch apparatus to the second switch apparatus, and when the packet is transmitted from the first domain to a third domain of the plurality of domains, resetting the hop number registered in the header region.


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