公开(公告)号：US20060077915A1

公开(公告)日：2006-04-13

申请号：US11020484

申请日：2004-12-27

申请人： Masayuki Takase ,  Minoru Hidaka ,  Takeki Yazaki ,  Tomoyuki Oku

发明人： Masayuki Takase ,  Minoru Hidaka ,  Takeki Yazaki ,  Tomoyuki Oku

IPC分类号： H04L5/22

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/21

摘要： To control a bandwidth without the need for a large-capacity buffer. This invention provides a packet transfer apparatus connected to first device and second device, with a network therebetween, including: an input unit that receives a packet from the first device; a packet storage unit that stores the packet; a packet processing unit that stores the packet in the packet storage unit; a packet checking unit that checks whether the packet is related to data request; a packet analyzing unit that analyzes the amount of data requested by the data request; a transfer control unit that controls transfer of the packet on the basis of the analyzed amount of data; and an output unit that sends the received packet to the second device.

摘要翻译： 控制带宽，无需大容量缓冲区。 本发明提供了一种连接到第一设备和第二设备的分组传送设备，其间具有网络，包括：输入单元，其从第一设备接收分组; 存储分组的分组存储单元; 分组处理单元，其将分组存储在分组存储单元中; 分组检查单元，检查分组是否与数据请求相关; 分组分析单元，其分析由所述数据请求请求的数据量; 传送控制单元，其基于分析的数据量来控制分组的传送; 以及将接收到的分组发送到第二设备的输出单元。

公开(公告)号：US20050157752A1

公开(公告)日：2005-07-21

申请号：US10889139

申请日：2004-07-13

申请人： Masayuki Takase ,  Takeki Yazaki

发明人： Masayuki Takase ,  Takeki Yazaki

IPC分类号： H04L12/815 ,  H04L12/829 ,  H04L12/863 ,  H04L12/951 ,  H04L29/08 ,  H04L12/56

CPC分类号： H04L49/205 ,  H04L49/35 ,  H04L67/1097 ,  H04L69/329

摘要： A storage switch with bandwidth control function for preventing discarding of packets for bandwidth breach when sending or receiving storage data using an iSCSI protocol on a wide area network having a covenant (guaranteed) bandwidth, when the quantity of storage data traffic sent by the initiator or target was judged a bandwidth breach or violation. The traffic amount is predicted from the Expected Data Transfer Length contained in the read request of the iSCSI command and the Desired Data Transfer Length contained in the R2T command, when that command is sent to the target and the initiator and the bandwidth is regulated by controlling the transmission timing of that command.

摘要翻译： 具有带宽控制功能的存储交换机，用于在发起或接收存储数据时使用iSCSI协议在具有契约（保证）带宽的广域网上发送或接收存储数据时防止数据包丢弃，当启动器发送的存储数据流量或 目标被判定为带宽违规或违规。 根据iSCSI命令的读取请求中包含的预期数据传输长度和R2T命令中包含的期望数据传输长度来预测流量，当该命令发送到目标端并且启动器和带宽被控制时 该命令的发送定时。

公开(公告)号：US07133363B2

公开(公告)日：2006-11-07

申请号：US10889139

申请日：2004-07-13

申请人： Masayuki Takase ,  Takeki Yazaki

发明人： Masayuki Takase ,  Takeki Yazaki

IPC分类号： H04J1/16 ,  H04J3/14

CPC分类号： H04L49/205 ,  H04L49/35 ,  H04L67/1097 ,  H04L69/329

摘要： A storage switch with bandwidth control function for preventing discarding of packets for bandwidth breach when sending or receiving storage data using an iSCSI protocol on a wide area network having a covenant (guaranteed) bandwidth, when the quantity of storage data traffic sent by the initiator or target was judged a bandwidth breach or violation. The traffic amount is predicted from the Expected Data Transfer Length contained in the read request of the iSCSI command and the Desired Data Transfer Length contained in the R2T command, when that command is sent to the target and the initiator and the bandwidth is regulated by controlling the transmission timing of that command.

摘要翻译： 具有带宽控制功能的存储交换机，用于在发起或接收存储数据时使用iSCSI协议在具有契约（保证）带宽的广域网上发送或接收存储数据时防止数据包丢弃，当启动器发送的存储数据流量或 目标被判定为带宽违规或违规。 根据iSCSI命令的读取请求中包含的预期数据传输长度和R2T命令中包含的期望数据传输长度来预测流量，当该命令发送到目标端并且启动器和带宽被控制时 该命令的发送定时。

公开(公告)号：US08094558B2

公开(公告)日：2012-01-10

申请号：US11020484

申请日：2004-12-27

申请人： Masayuki Takase ,  Minoru Hidaka ,  Takeki Yazaki ,  Tomoyuki Oku

发明人： Masayuki Takase ,  Minoru Hidaka ,  Takeki Yazaki ,  Tomoyuki Oku

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/21

摘要： To control a bandwidth without the need for a large-capacity buffer. This invention provides a packet transfer apparatus connected to first device and second device, with a network therebetween, including: an input unit that receives a packet from the first device; a packet storage unit that stores the packet; a packet processing unit that stores the packet in the packet storage unit; a packet checking unit that checks whether the packet is related to data request; a packet analyzing unit that analyzes the amount of data requested by the data request; a transfer control unit that controls transfer of the packet on the basis of the analyzed amount of data; and an output unit that sends the received packet to the second device.

摘要翻译： 控制带宽，无需大容量缓冲区。 本发明提供了一种连接到第一设备和第二设备的分组传送设备，其间具有网络，包括：输入单元，其从第一设备接收分组; 存储分组的分组存储单元; 分组处理单元，其将分组存储在分组存储单元中; 分组检查单元，检查分组是否与数据请求相关; 分组分析单元，其分析由所述数据请求请求的数据量; 传送控制单元，其基于分析的数据量来控制分组的传送; 以及将接收到的分组发送到第二设备的输出单元。

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：US08290369B2

公开(公告)日：2012-10-16

申请号：US12379281

申请日：2009-02-18

申请人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

发明人： Kenichi Sakamoto ,  Yoshihiro Ashi ,  Tohru Kazawa ,  Ryosuke Nishino ,  Masayuki Takase ,  Masahiko Mizutani

IPC分类号： H04B10/00

CPC分类号： H04J3/1694 ,  H04J3/0682

摘要： An optical access system capable of avoiding cutoffs or interruption in the periodically transmitted signals that occur during the ranging time is provided. A first method to avoid signal cutoffs is to stop periodic transmit signals at the transmitter during the ranging period, and transmit all the periodic transmit signals together when the ranging ends, and buffer the signals at the receiver to prepare for ranging. A second method is to fix definite periods ahead of time for performing ranging, then cluster the multiple periodic transmit signals together in sets at the transmitter and send them, and then disassemble those sets back into signals at the receiver. The transmitting and receiving is then controlled so that the transmit periods do not overlap with the ranging periods. In this way an optical access system is provided that can send and receive signals requiring periodic transmissions without interruption even during ranging operation.

摘要翻译： 提供一种能够避免在测距时间期间发生的周期性发射信号中的截断或中断的光接入系统。 避免信号截止的第一种方法是在测距周期期间在发射机处停止周期性发射信号，并且在测距结束时将所有周期性发射信号传输到一起，并且在接收机处缓冲信号以准备测距。 第二种方法是提前确定一段时间进行测距，然后将多个周期性发射信号集合在一起，并将其发送给发射机，然后将它们分组回接收机的信号。 然后控制发送和接收，使得发送周期不与测距周期重叠。 以这种方式，提供光接入系统，即使在测距操作期间也可以发送和接收需要周期性传输的信号而不中断。

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：US20090210553A1

公开(公告)日：2009-08-20

申请号：US12379280

申请日：2009-02-18

申请人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

发明人： Masayuki Takase ,  Yoshihiro Ashi ,  Masahiko Mizutani ,  Tohru Kazawa ,  Kenichi Sakamoto ,  Taishi Shinagawa

IPC分类号： G06F15/16

CPC分类号： H04L47/10 ,  H04L47/20 ,  H04L47/21 ,  H04L47/215 ,  H04L47/22 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： A packet forwarding apparatus and network system for providing different types of bandwidth control services to the user; in which a packet forwarding apparatus for transferring data comprises an interface unit for sending and receiving packets, and a traffic shaper for controlling the packet transmission timing and a packet switch for sending an output to the interface unit as the destination of the received packet; and the traffic shaper uses a token bucket algorithm when transmitting a packet to guarantee the minimum frame rate, and uses a leaky bucket algorithm when limiting the peak frame rate.

摘要翻译： 一种分组转发装置和网络系统，用于向用户提供不同类型的带宽控制服务; 其中用于传送数据的分组转发装置包括用于发送和接收分组的接口单元，以及用于控制分组传输定时的流量整形器和用于向接口单元发送输出作为接收分组的目的地的分组交换机; 并且流量整形器在发送分组时使用令牌桶算法来保证最小帧速率，并且在限制峰值帧速率时使用泄漏桶算法。

公开(公告)号：US20090016366A1

公开(公告)日：2009-01-15

申请号：US12073766

申请日：2008-03-10

申请人： Hideki Endo ,  Masayuki Takase ,  Shikou Matsushima ,  Akihiko Tanaka ,  Takayuki Kanno ,  Yoshihiro Ashi

发明人： Hideki Endo ,  Masayuki Takase ,  Shikou Matsushima ,  Akihiko Tanaka ,  Takayuki Kanno ,  Yoshihiro Ashi

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/22 ,  H04L45/28

摘要： Disclosed herewith is a packet transfer apparatus that carries out 1+1 protection switching for traffics to be received variably in both length and cycle. The apparatus enables flows to be multiplexed and the link usage efficiency to be improved without generating any buffer overflow errors. The data transfer apparatus, upon receiving the third sequentially numbered data from the first communication route before receiving the preceding second sequentially numbered data, stores the received third data in a buffer. And upon receiving the second sequentially numbered data from the second communication route, the apparatus sends the second and third data sequentially. Then, upon receiving the third sequentially numbered data from the second communication route before receiving the second sequentially numbered data, the apparatus sends the third data when a predetermined waiting time expires.

摘要翻译： 这里公开了一种分组传送装置，其执行1 + 1保护切换以便在长度和周期中可变地接收业务。 该装置能够使流复用，并且链路使用效率得到改善，而不产生任何缓冲器溢出错误。 数据传送装置在接收到先前的第二顺序编号数据之前从第一通信路由接收到第三顺序编号的数据后，将接收的第三数据存储在缓冲器中。 并且在从第二通信路由接收到第二顺序编号的数据时，装置依次发送第二和第三数据。 然后，在接收到第二顺序编号数据之前从第二通信路由接收到第三顺序编号的数据后，当预定的等待时间到期时，装置发送第三数据。

公开(公告)号：US20070264017A1

公开(公告)日：2007-11-15

申请号：US11503246

申请日：2006-08-14

申请人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

发明人： Masahiko Mizutani ,  Takeshi Shibata ,  Tohru Kazawa ,  Yoshihiro Ashi ,  Masanobu Kobayashi ,  Masayuki Takase

IPC分类号： H04J14/00

CPC分类号： H04J3/1694 ,  H04L12/185 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0073 ,  H04Q2011/0079

摘要： Provided is an ONU that suppresses transmission of a useless multicast control message to a PON section and enables a communication bandwidth of the PON section to be effectively used. The ONU of the PON system has a multicast group management table that shows a correspondence between a multicast group identifier and an address of a user terminal participating in a multicast group. When the ONU receives a request message of participation in the multicast group from the user terminal, the ONU registers the correspondence between the multicast group identifier indicated by the received message and the user terminal address. A new received message is deleted without being sent to the OLT if another user terminal address is registered already, along with a correspondence with the same multicast group identifier, in the multicast group management table.

摘要翻译： 提供了抑制对PON部分的无用组播控制消息的发送的ONU，能够有效地使用PON部的通信带宽。 PON系统的ONU具有表示组播组标识与参与组播组的用户终端的地址的对应关系的组播组管理表。 当ONU从用户终端接收到参与组播组的请求消息时，ONU注册由接收到的消息指示的组播组标识符与用户终端地址之间的对应关系。 如果在多播组管理表中已经注册了另一个用户终端地址以及与同一组播组标识符的对应关系，则新的接收到的消息被删除而不被发送到OLT。