公开(公告)号：US08243745B2

公开(公告)日：2012-08-14

申请号：US12699221

申请日：2010-02-03

申请人： Hideki Endo ,  Akihiko Tanaka ,  Takayuki Kanno ,  Masayuki Takase ,  Taisuke Ueta

发明人： Hideki Endo ,  Akihiko Tanaka ,  Takayuki Kanno ,  Masayuki Takase ,  Taisuke Ueta

IPC分类号： H04L12/56 ,  G06F3/00

CPC分类号： H04L49/9015 ,  H04L49/90

摘要： A packet communication apparatus includes a frame buffer of a linked list method and holds chain information and buffer size information, for structuring a linked list buffer for each user flow, in two areas consisting of an operation area and an update area. While usually in service, the buffer is structured by using the chain information in the operation area and the buffer size information in the same area such that the frame is read/written in the frame buffer. When the chain information in the update area and the buffer size information in the same area have been changed, a queue size is changed by reflecting the updated chain information and the updater buffer size information into the operation area, when both the read pointer and the write pointer respectively have gone around the buffer, or when there is no frame stored in the buffer.

摘要翻译： 分组通信装置包括链表列表方法的帧缓冲器，并且在由操作区域和更新区域组成的两个区域中保存用于为每个用户流构造链接列表缓冲器的链信息和缓冲器大小信息。 通常在使用中，通过使用操作区域中的链接信息和相同区域中的缓冲器大小信息来构造缓冲器，使得帧被读取/写入帧缓冲器。 当更新区域中的链路信息和相同区域中的缓冲器大小信息已经改变时，当读取指针和读取指针都被读取时，通过将更新的链接信息和更新的缓冲器大小信息反映到操作区域来改变队列大小 写指针分别绕过缓冲区，或者当没有帧存储在缓冲区中时。

公开(公告)号：US08320238B2

公开(公告)日：2012-11-27

申请号：US12479201

申请日：2009-06-05

申请人： Masayuki Takase ,  Hideki Endo ,  Taisuke Ueta ,  Takayuki Kanno

发明人： Masayuki Takase ,  Hideki Endo ,  Taisuke Ueta ,  Takayuki Kanno

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L12/1868 ,  H04L41/0668 ,  H04L45/00 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

摘要： Provided is a network system including a start device and multiple end devices. A point-to-point (P-to-P) logical path is set to be used for unicast communication between the start device and each of the end devices. A first point-to-multipoint (P-to-M) logical path and a second P-to-M logical path are set to be used for multicast communication from the start device to the multiple end devices. The start device transmits data over the first P-to-M logical path. When one of the end devices detects a defect along the first P-to-M logical path, the end device that has detected the defect transmits a switch request over the P-to-P logical path set between this end device and the start device. The start device receives the switch request and transmits data over the second P-to-M logical path.

摘要翻译： 提供了一种包括启动设备和多个终端设备的网络系统。 点对点（P到P）逻辑路径被设置为用于启动设备和每个终端设备之间的单播通信。 将第一点对多点（P到M）逻辑路径和第二P到M逻辑路径设置为用于从起始设备到多端设备的多播通信。 起始装置通过第一P-M逻辑路径发送数据。 当终端设备中的一个检测到沿着第一P-to-M逻辑路径的缺陷时，检测到缺陷的终端设备通过在该终端设备和起始设备之间设置的P-to-P逻辑路径发送切换请求 。 启动设备接收切换请求，并通过第二个P-to-M逻辑路径发送数据。

公开(公告)号：US09083602B2

公开(公告)日：2015-07-14

申请号：US13512480

申请日：2009-11-30

申请人： Hideki Endo ,  Taisuke Ueta ,  Yoshihiro Ashi ,  Norio Miyazaki

发明人： Hideki Endo ,  Taisuke Ueta ,  Yoshihiro Ashi ,  Norio Miyazaki

IPC分类号： H04L12/28 ,  H04L12/701 ,  H04L12/26 ,  H04L12/733 ,  H04L12/723

CPC分类号： H04L45/00 ,  H04L43/0811 ,  H04L45/20 ,  H04L45/50

摘要： Provided is a communication system which is provided with a plurality of communication devices and transfers a packet between the plurality of communication devices through a communication path. When a packet is looped back at any of the communication devices on the communication path to verify connectivity of the communication path, a first communication device of the plurality of communication devices stores, in a first region of header information of the packet, first information for designating the communication device at which the packet is looped back, further stores, in a second region of the header information of the packet, second information on a loopback point in the designated communication device at which the packet is looped back, and sends the packet to which the first information and the second information have been added.

摘要翻译： 提供了一种通信系统，其具有多个通信设备，并且通过通信路径在多个通信设备之间传送分组。 当分组环回在通信路径上的任何通信设备上以验证通信路径的连通性时，多个通信设备的第一通信设备在分组的报头信息的第一区域中存储用于 指定分组环回的通信设备，还在分组的报头信息的第二区域中存储关于分组环回的指定通信设备中的回送点的第二信息，并发送分组 添加了第一个信息和第二个信息。

公开(公告)号：US20120236866A1

公开(公告)日：2012-09-20

申请号：US13512480

申请日：2009-11-30

申请人： Hideki Endo ,  Taisuke Ueta ,  Yoshihiro Ashi ,  Norio Miyazaki

发明人： Hideki Endo ,  Taisuke Ueta ,  Yoshihiro Ashi ,  Norio Miyazaki

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L43/0811 ,  H04L45/20 ,  H04L45/50

摘要： Provided is a communication system which is provided with a plurality of communication devices and transfers a packet between the plurality of communication devices through a communication path. When a packet is looped back at any of the communication devices on the communication path to verify connectivity of the communication path, a first communication device of the plurality of communication devices stores, in a first region of header information of the packet, first information for designating the communication device at which the packet is looped back, further stores, in a second region of the header information of the packet, second information on a loopback point in the designated communication device at which the packet is looped back, and sends the packet to which the first information and the second information have been added.

摘要翻译： 提供了一种通信系统，其具有多个通信设备，并且通过通信路径在多个通信设备之间传送分组。 当分组环回在通信路径上的任何通信设备上以验证通信路径的连通性时，多个通信设备中的第一通信设备在分组的报头信息的第一区域中存储用于 指定分组环回的通信设备，还在分组的报头信息的第二区域中存储关于分组环回的指定通信设备中的回送点的第二信息，并发送分组 添加了第一个信息和第二个信息。