Patents by Inventor Yuya Ikuta
Yuya Ikuta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11206224Abstract: A switch device includes: a memory; and a processor coupled to the memory and configured to: identify an adjacent switch device using a function that is operable even when a function of relaying communication is inoperable; confirm communication with the adjacent switch device which is identified, by using the function of relaying communication; and determine whether or not there is a silent failure in the switch device, based on a result of the communication confirmation.Type: GrantFiled: November 18, 2019Date of Patent: December 21, 2021Assignee: FUJITSU LIMITEDInventors: Yuya Ikuta, Takeshi Umezuki
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Patent number: 10897391Abstract: A first node device is included in a network including a plurality of node devices including a plurality of terminals and a plurality of relay devices relaying a packet transmitted and received between the plurality of terminals. The first node device includes a memory, and a processor coupled to the memory and the processor configured to determine whether a second node device detects a possibility of disappearance of a first packet in the network, the first packet being transmitted from a third node device to the second node device, and when determining that the second node device detects the possibility, transmit first information to a respective node device on one or more paths present between the first node device and the third node device in the network, the first information requesting to determine whether the respective node device transmits or receives the first packet.Type: GrantFiled: January 18, 2019Date of Patent: January 19, 2021Assignee: FUJITSU LIMITEDInventors: Yuya Ikuta, Takeshi Umezuki
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Patent number: 10769041Abstract: Each information processing apparatus judges a busy flag of a first port thereof based on a result of comparison of a busy level of the first port and a busy level of a second port of another information processing apparatus. A monitoring apparatus determines from among the information processing apparatuses, a first information processing apparatus and a second information processing apparatus, based on the results of judgment by the information processing apparatuses. An L2 switch changes to the second information processing apparatus, a destination of a frame whose destination is the first information processing apparatus and changes to the first information processing apparatus, a transmission source of the frame whose transmission source is the second information processing apparatus.Type: GrantFiled: July 10, 2018Date of Patent: September 8, 2020Assignee: FUJITSU LIMITEDInventors: Masanori Takaoka, Naoyoshi Toshine, Yuya Ikuta, Junichi Murakami, Hideki Nagatomo, Sei Murata, Akihide Otawa
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Publication number: 20200177520Abstract: A switch device includes: a memory; and a processor coupled to the memory and configured to: identify an adjacent switch device using a function that is operable even when a function of relaying communication is inoperable; confirm communication with the adjacent switch device which is identified, by using the function of relaying communication; and determine whether or not there is a silent failure in the switch device, based on a result of the communication confirmation.Type: ApplicationFiled: November 18, 2019Publication date: June 4, 2020Applicant: FUJITSU LIMITEDInventors: Yuya Ikuta, Takeshi Umezuki
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Patent number: 10511502Abstract: An information processing method executed by a processor included in an information processing device includes acquiring, when an error occurred at the information processing device is detected, first identification information that include identification information of a transmission source of a first packet transmitted or received when the error has occurred and identification information of a transmission destination of the first packet; receiving a second packet; determining whether second identification information included in the second packet matches with the first identification information, the second identification information including identification information of a transmission source of the second packet and identification information of a transmission destination of the second packet; storing data corresponding to the second packet when it is determined that the second identification information matches with the first identification information; and transmitting the data to a management deviceType: GrantFiled: June 6, 2017Date of Patent: December 17, 2019Assignee: FUJITSU LIMITEDInventors: Yuya Ikuta, Hideki Nagatomo, Hiroshi Otsuka, Tooru Kobayashi, Hiroshi Shiomi
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Publication number: 20190229982Abstract: A first node device is included in a network including a plurality of node devices including a plurality of terminals and a plurality of relay devices relaying a packet transmitted and received between the plurality of terminals. The first node device includes a memory, and a processor coupled to the memory and the processor configured to determine whether a second node device detects a possibility of disappearance of a first packet in the network, the first packet being transmitted from a third node device to the second node device, and when determining that the second node device detects the possibility, transmit first information to a respective node device on one or more paths present between the first node device and the third node device in the network, the first information requesting to determine whether the respective node device transmits or receives the first packet.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: FUJITSU LIMITEDInventors: Yuya Ikuta, Takeshi Umezuki
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Publication number: 20190018743Abstract: Each information processing apparatus judges a busy flag of a first port thereof based on a result of comparison of a busy level of the first port and a busy level of a second port of another information processing apparatus. A monitoring apparatus determines from among the information processing apparatuses, a first information processing apparatus and a second information processing apparatus, based on the results of judgment by the information processing apparatuses. An L2 switch changes to the second information processing apparatus, a destination of a frame whose destination is the first information processing apparatus and changes to the first information processing apparatus, a transmission source of the frame whose transmission source is the second information processing apparatus.Type: ApplicationFiled: July 10, 2018Publication date: January 17, 2019Applicant: FUJITSU LIMITEDInventors: Masanori Takaoaka, Naoyoshi Toshine, Yuya Ikuta, Junichi Murakami, Hideki Nagatomo, Sei Murata, Akihide Otawa
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Patent number: 10097450Abstract: A relay device includes a target port coupled to another device; and a processor coupled to the target port and configured to extract identification information on the other device and identification information on a link aggregation group (LAG) configuration applied to the other device, from a frame received through the target port, and determine LAG configuration to be applied to the target port based on the identification information on the other device and the identification information on the LAG configuration applied to the other device.Type: GrantFiled: October 4, 2016Date of Patent: October 9, 2018Assignee: FUJITSU LIMITEDInventor: Yuya Ikuta
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Publication number: 20170366424Abstract: An information processing method executed by a processor included in an information processing device includes acquiring, when an error occurred at the information processing device is detected, first identification information that include identification information of a transmission source of a first packet transmitted or received when the error has occurred and identification information of a transmission destination of the first packet; receiving a second packet; determining whether second identification information included in the second packet matches with the first identification information, the second identification information including identification information of a transmission source of the second packet and identification information of a transmission destination of the second packet; storing data corresponding to the second packet when it is determined that the second identification information matches with the first identification information; and transmitting the data to a management deviceType: ApplicationFiled: June 6, 2017Publication date: December 21, 2017Applicant: FUJITSU LIMITEDInventors: Yuya IKUTA, Hideki NAGATOMO, Hiroshi OTSUKA, Tooru KOBAYASHI, Hiroshi SHIOMI
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Publication number: 20170171062Abstract: A relay device includes a target port coupled to another device; and a processor coupled to the target port and configured to extract identification information on the other device and identification information on a link aggregation group (LAG) configuration applied to the other device, from a frame received through the target port, and determine LAG configuration to be applied to the target port based on the identification information on the other device and the identification information on the LAG configuration applied to the other device.Type: ApplicationFiled: October 4, 2016Publication date: June 15, 2017Applicant: FUJITSU LIMITEDInventor: Yuya Ikuta