公开(公告)号：US10469384B2

公开(公告)日：2019-11-05

申请号：US15923568

申请日：2018-03-16

申请人： KDDI CORPORATION

发明人： Kazuaki Ueda ,  Atsushi Tagami ,  Kenji Yokota

IPC分类号： H04L12/743 ,  H04L12/66 ,  H04L12/717 ,  H04L12/747 ,  H04L12/725

摘要： A communication device includes: a forwarding unit configured to determine, if a first packet is directed to the communication device, whether or not a forwarding destination address of the first packet can be specified based on a value contained in a first field of the first packet, the forwarding unit setting, if it can be specified, the specified forwarding destination address as the destination address of the first packet and forwarding the first packet; and a processing unit configured to perform, if no forwarding destination address of the first packet can be specified and the first packet includes a request packet that requests an object according to an object name of the object, processing for specifying the forwarding destination of the first request packet based on the object name.

公开(公告)号：US11212359B2

公开(公告)日：2021-12-28

申请号：US17071626

申请日：2020-10-15

申请人： KDDI CORPORATION

发明人： Kazuaki Ueda ,  Atsushi Tagami

IPC分类号： G06F15/167 ,  H04L29/08

摘要： A transfer apparatus for a content distribution network in which a content is divided into one or more objects and distributed includes: a determination unit configured to, upon receiving a first request packet, determine whether the first request packet is to be processed; a monitor unit configured to, when the first request packet is to be processed, determine a requested content corresponding to a requested object requested by the first request packet, and monitor a second request packet that requests an object of the requested content for a predetermined period; and a transmission unit configured to, when the second request packet satisfies a predetermined condition, generate and transmit a third request packet that requests an object that differs from the objects requested by the first request packet and the second request packet among objects of the requested content.

公开(公告)号：US11184460B2

公开(公告)日：2021-11-23

申请号：US16263719

申请日：2019-01-31

申请人： KDDI CORPORATION

发明人： Kenji Yokota ,  Jun Kurihara ,  Atsushi Tagami

IPC分类号： H04L29/08 ,  H04L12/00 ,  G06F13/00 ,  H04L12/46 ,  H04L12/28 ,  H04L12/725 ,  H04L29/06

摘要： A transfer device includes: a determination unit configured to determine, if a data packet including content and list information is received as a response to a transferred request packet, whether or not the content can be transmitted to a transfer device that has transmitted the request packet, based on an identifier of the transfer device that has transmitted the request packet and the list information. The list information included in the data packet is generated based on an identifier of a transfer device to which the content included in the data packet can be transmitted, of a plurality of transfer devices in the content distribution system, or is generated based on an identifier of a transfer device to which the content included in the data packet cannot be transmitted.

公开(公告)号：US20180205655A1

公开(公告)日：2018-07-19

申请号：US15923568

申请日：2018-03-16

申请人： KDDI CORPORATION

发明人： Kazuaki Ueda ,  Atsushi Tagami ,  Kenji Yokota

IPC分类号： H04L12/743 ,  H04L12/747 ,  H04L12/717

CPC分类号： H04L45/7453 ,  H04L12/66 ,  H04L45/306 ,  H04L45/42 ,  H04L45/742

摘要： A communication device includes: a forwarding unit configured to determine, if a first packet is directed to the communication device, whether or not a forwarding destination address of the first packet can be specified based on a value contained in a first field of the first packet, the forwarding unit setting, if it can be specified, the specified forwarding destination address as the destination address of the first packet and forwarding the first packet; and a processing unit configured to perform, if no forwarding destination address of the first packet can be specified and the first packet includes a request packet that requests an object according to an object name of the object, processing for specifying the forwarding destination of the first request packet based on the object name.