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    Packet forwarding device
    1.
    发明授权
    Packet forwarding device 有权
    分组转发设备

    公开(公告)号：US08514741B2

    公开(公告)日：2013-08-20

    申请号：US12414725

    申请日：2009-03-31

    申请人： Takeki Yazaki ,  Mitsuru Nagasaka

    发明人： Takeki Yazaki ,  Mitsuru Nagasaka

    IPC分类号： H04L12/26

    CPC分类号： H04L49/40 ,  H04L49/205

    摘要： A packet forwarding device changes packet transfer performance according to a packet load, and ensures communication quality of an important packet while transfer performance is made minimum to suppress power consumption. The packet forwarding device includes a measuring section to measure the packet load for each packet importance degree, an estimation section to estimate a future packet load for each importance degree based on the measurement result, a performance determination section to determine performance for an operation based on the estimated load, which are provided in, for example, a traffic estimation/performance determination section. Reduction in the power consumption and assurance of the communication quality of the important packet are realized by a minimum performance determination based on an important packet estimation load in the performance determination section and a preferential process of the important packet in the packet forwarding device.

    摘要翻译： 分组转发设备根据分组负载改变分组传输性能，确保重要分组的通信质量，同时降低传输性能，抑制功耗。 分组转发装置包括：测量部分，用于测量每个分组重要度的分组负载;估计部分，用于基于测量结果估计每个重要度的未来分组负载;性能确定部分，用于基于 估计负载，其例如在业务估计/性能确定部分中提供。 通过基于性能确定部分中的重要分组估计负载的最小性能确定和分组转发设备中的重要分组的优先处理来实现功率消耗的降低和重要分组的通信质量的保证。

    Packet transfer method, packet transfer device, and packet transfer system
    2.
    发明授权
    Packet transfer method, packet transfer device, and packet transfer system 有权
    分组传送方法，分组传送装置和分组传送系统

    公开(公告)号：US08848714B2

    公开(公告)日：2014-09-30

    申请号：US12640592

    申请日：2009-12-17

    申请人： Takeki Yazaki ,  Tomoyuki Oku ,  Mitsuru Nagasaka

    发明人： Takeki Yazaki ,  Tomoyuki Oku ,  Mitsuru Nagasaka

    IPC分类号： H04L12/24 ,  H04L12/26 ,  H04L12/12 ,  H04L12/701 ,  G06F1/32 ,  H04L12/715

    CPC分类号： H04L43/0882 ,  G06F1/3209 ,  H04L12/12 ,  H04L41/0896 ,  H04L45/00 ,  H04L45/04 ,  Y02D50/20 ,  Y02D50/40

    摘要： An edge router measures a traffic volume inputted into a network, and the measurement result is notified to a network management server. If the network management server judges that the notified traffic volume is “smaller” than a capacity of a second core router, it will direct a first core router to shift to a power saving mode. The first core router notifies the edge router of the shift to the power saving mode, and the edge router updates a routing table so that the packet to the first core router may be bypassed to the second core router. The first core router shifts to the power saving mode that does not perform packet transfer, and reduction in electric power is realized.

    摘要翻译： 边缘路由器测量输入到网络的流量，并将测量结果通知给网络管理服务器。 如果网络管理服务器判断所通知的业务量比第二核心路由器的容量“小”，则它将引导第一核心路由器转移到省电模式。 第一个核心路由器通知边缘路由器转移到省电模式，边缘路由器更新一个路由表，使得到第一个核心路由器的数据包可能被旁路到第二个核心路由器。 第一核心路由器转移到不执行分组传输的省电模式，并实现电力的降低。

    Packet forwarding device
    5.
    发明申请
    Packet forwarding device 审中-公开
    分组转发设备

    公开(公告)号：US20120008623A1

    公开(公告)日：2012-01-12

    申请号：US13137916

    申请日：2011-09-21

    申请人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    发明人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    IPC分类号： H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/60 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/602

    摘要： A power-saving packet forwarding device realizing electric power that accords to the number of lines in which communication is performed and a traffic volume inputted from the lines. A header processing unit with which the packet forwarding device is equipped has a plurality of packet processing circuits for performing a packet processing. A line number decision circuit monitors the number of lines in which communication is performed and a traffic volume inputted from the line, and decides presence or absence of an operation of a packet processing circuit. Based on this decision result, a power supply and a clock of the packet processing circuit that does not need to operate are interrupted, and accordingly power saving of the packet forwarding device is realized.

    摘要翻译： 实现符合进行通信的线路数和从线路输入的话务量的电力的省电分组转发装置。 配备有分组转发设备的报头处理单元具有用于执行分组处理的多个分组处理电路。 行号决定电路监视进行通信的线路数和从线路输入的话务量，决定分组处理电路的动作的有无。 基于该决定结果，不需要操作的分组处理电路的电源和时钟被中断，从而实现了分组转发装置的省电。

    Packet forwarding device
    6.
    发明申请
    Packet forwarding device 有权
    分组转发设备

    公开(公告)号：US20090109985A1

    公开(公告)日：2009-04-30

    申请号：US12222153

    申请日：2008-08-04

    申请人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    发明人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    IPC分类号： H04L12/56

    CPC分类号： H04L45/00 ,  H04L45/60 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/602

    摘要： A power-saving packet forwarding device realizing electric power that accords to the number of lines in which communication is performed and a traffic volume inputted from the lines. A header processing unit with which the packet forwarding device is equipped has a plurality of packet processing circuits for performing a packet processing. A line number decision circuit monitors the number of lines in which communication is performed and a traffic volume inputted from the line, and decides presence or absence of an operation of a packet processing circuit. Based on this decision result, a power supply and a clock of the packet processing circuit that does not need to operate are interrupted, and accordingly power saving of the packet forwarding device is realized.

    摘要翻译： 实现符合进行通信的线路数和从线路输入的话务量的电力的省电分组转发装置。 配备有分组转发设备的报头处理单元具有用于执行分组处理的多个分组处理电路。 行号决定电路监视进行通信的线路数和从线路输入的话务量，决定分组处理电路的动作的有无。 基于该决定结果，不需要操作的分组处理电路的电源和时钟被中断，从而实现了分组转发装置的省电。

    Packet forwarding device
    7.
    发明授权
    Packet forwarding device 有权
    分组转发设备

    公开(公告)号：US08040889B2

    公开(公告)日：2011-10-18

    申请号：US12222153

    申请日：2008-08-04

    申请人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    发明人： Takeki Yazaki ,  Mitsuru Nagasaka ,  Shinichi Akahane

    IPC分类号： H04L12/28

    CPC分类号： H04L45/00 ,  H04L45/60 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3009 ,  H04L49/351 ,  H04L49/602

    摘要： A power-saving packet forwarding device realizing electric power that accords to the number of lines in which communication is performed and a traffic volume inputted from the lines. A header processing unit with which the packet forwarding device is equipped has a plurality of packet processing circuits for performing a packet processing. A line number decision circuit monitors the number of lines in which communication is performed and a traffic volume inputted from the line, and decides presence or absence of an operation of a packet processing circuit. Based on this decision result, a power supply and a clock of the packet processing circuit that does not need to operate are interrupted, and accordingly power saving of the packet forwarding device is realized.

    摘要翻译： 实现符合进行通信的线路数和从线路输入的话务量的电力的省电分组转发装置。 配备有分组转发设备的报头处理单元具有用于执行分组处理的多个分组处理电路。 行号决定电路监视进行通信的线路数和从线路输入的话务量，决定分组处理电路的动作的有无。 基于该决定结果，不需要操作的分组处理电路的电源和时钟被中断，从而实现了分组转发装置的省电。

    PACKET TRANSFER METHOD, PACKET TRANSFER DEVICE, AND PACKET TRANSFER SYSTEM
    9.
    发明申请
    PACKET TRANSFER METHOD, PACKET TRANSFER DEVICE, AND PACKET TRANSFER SYSTEM 有权
    分组传送方法，分组传送装置和分组传送系统

    公开(公告)号：US20100157830A1

    公开(公告)日：2010-06-24

    申请号：US12640592

    申请日：2009-12-17

    申请人： Takeki YAZAKI ,  Tomoyuki Oku ,  Mitsuru Nagasaka

    发明人： Takeki YAZAKI ,  Tomoyuki Oku ,  Mitsuru Nagasaka

    IPC分类号： H04L12/26 ,  H04L12/56 ,  G06F1/26

    CPC分类号： H04L43/0882 ,  G06F1/3209 ,  H04L12/12 ,  H04L41/0896 ,  H04L45/00 ,  H04L45/04 ,  Y02D50/20 ,  Y02D50/40

    摘要： An edge router measures a traffic volume inputted into a network, and the measurement result is notified to a network management server. If the network management server judges that the notified traffic volume is “smaller” than a capacity of a second core router, it will direct a first core router to shift to a power saving mode. The first core router notifies the edge router of the shift to the power saving mode, and the edge router updates a routing table so that the packet to the first core router may be bypassed to the second core router. The first core router shifts to the power saving mode that does not perform packet transfer, and reduction in electric power is realized.

    摘要翻译： 边缘路由器测量输入到网络的流量，并将测量结果通知给网络管理服务器。 如果网络管理服务器判断所通知的业务量比第二核心路由器的容量“小”，则它将引导第一核心路由器转移到省电模式。 第一个核心路由器通知边缘路由器转移到省电模式，边缘路由器更新一个路由表，使得到第一个核心路由器的数据包可能被旁路到第二个核心路由器。 第一核心路由器转移到不执行分组传输的省电模式，并实现电力的降低。

    Method of monitoring quality of communication for each flow
    10.
    发明授权
    Method of monitoring quality of communication for each flow 失效
    监测每个流量通信质量的方法

    公开(公告)号：US07020085B2

    公开(公告)日：2006-03-28

    申请号：US10994432

    申请日：2004-11-23

    申请人： Itaru Mimura ,  Mitsuru Nagasaka ,  Noboru Endo

    发明人： Itaru Mimura ,  Mitsuru Nagasaka ,  Noboru Endo

    IPC分类号： G01R31/08

    CPC分类号： H04L43/065 ,  H04L1/0026 ,  H04L1/20 ,  H04L41/5003 ,  H04L41/5009 ,  H04L43/02 ,  H04L43/026 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0876 ,  H04L43/0888 ,  H04L43/106 ,  H04L2012/5628

    摘要： A packet switch identifies a communication flow carried across an IP network, observes the communication flow, and acquires statistics data thereof, such as the number of packets that passed through the switch, the number of discarded packets, time at which the packets arrived at the switch, and time at which the packets were sent out from the switch. The packet switch continues to acquire the statistics data on the communication flow while the communication flow continues. If the packet switch performs a relay function, it sends the locally obtained statistics data to the adjoining packet switch placed downstream. If the packet switch is a node placed on either end edge of the network, it gathers the statistics data obtained by and delivered from other switches in the network and sends the gathered statistics data to the network management system.

    摘要翻译： 分组交换机识别通过IP网络携带的通信流，观察通信流，并获取其统计数据，例如通过交换机的分组数量，丢弃分组的数量，分组到达的时间 交换机以及数据包从交换机发出的时间。 当通信流继续时，分组交换机继续获取关于通信流的统计数据。 如果分组交换机执行中继功能，则将本地获取的统计数据发送到下游的邻接分组交换机。 如果分组交换机是网络任一端的节点，则收集网络中其他交换机获取的统计数据，并将收集的统计数据发送给网络管理系统。