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    Packet forwarding device
    4.
    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 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 transfer method, packet transfer device, and packet transfer system
    7.
    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。

    Frame switching device
    8.
    发明申请
    Frame switching device 有权
    帧切换装置

    公开(公告)号：US20060072565A1

    公开(公告)日：2006-04-06

    申请号：US11207799

    申请日：2005-08-22

    申请人： Takeki Yazaki ,  Shinichi Akahane

    发明人： Takeki Yazaki ,  Shinichi Akahane

    IPC分类号： H04L12/56

    CPC分类号： H04L12/64 ,  H04L49/3009

    摘要： A header processing unit includes a key information supply unit that manages MAC addresses and MAC key information having a short bit length that corresponds to the addresses, and decides key information corresponding to a source MAC address and a destination MAC address of an input frame. A destination decision unit performs destination decision processing based on corresponding key information instead of destination MAC addresses. A flow decision unit decides a flow based on key information corresponding to a destination MAC address and a source MAC address. Since the key information supply unit does not need to set plural identical MAC addresses, the header processing unit becomes inexpensive. Thus, this invention achieves an inexpensive switch that performs output decision processing and flow decision processing.

    摘要翻译： 标题处理单元包括密钥信息提供单元，其管理具有与地址相对应的短位长度的MAC地址和MAC密钥信息，并且确定与输入帧的源MAC地址和目的地MAC地址对应的密钥信息。 目的地决定单元基于对应的密钥信息而不是目的地MAC地址来执行目的地决定处理。 流决定单元基于与目的地MAC地址和源MAC地址对应的密钥信息来决定流。 由于密钥信息提供单元不需要设置多个相同的MAC地址，所以报头处理单元变得便宜。 因此，本发明实现了执行输出决策处理和流程决策处理的便宜的开关。

    Data transfer device
    9.
    发明授权
    Data transfer device 有权
    数据传输设备

    公开(公告)号：US07529251B2

    公开(公告)日：2009-05-05

    申请号：US11211570

    申请日：2005-08-26

    申请人： Tomoyuki Oku ,  Takeki Yazaki ,  Michitaka Okuno ,  Minoru Hidaka ,  Shinichi Akahane

    发明人： Tomoyuki Oku ,  Takeki Yazaki ,  Michitaka Okuno ,  Minoru Hidaka ,  Shinichi Akahane

    IPC分类号： H04L12/28 ,  H04L12/56 ,  G06F12/00 ,  G06F13/00

    CPC分类号： H04L45/00 ,  H04L45/60 ,  H04L45/742

    摘要： A high quality network is provided that eliminates the sorting time for sorting through registering look-up conditions, such as source and destination MAC addresses, in a content addressable memory, by generating a routing or flow control look-up key, and then selectively activating some of the physical banks in the content addressable memory with the look-up key during look-up for the look-up conditions. The look-up key is generated by extracting a part or all of the data contained in a packet header.

    摘要翻译： 提供了一种高质量的网络，通过生成路由或流量控制查找键，消除了通过在内容可寻址存储器中注册查找条件（例如源和目的地MAC地址）进行排序的排序时间，然后选择性地激活 在查找条件的查找期间，内容可寻址存储器中的一些物理存储库具有查找键。 通过提取分组报头中包含的部分或全部数据来生成查找密钥。

    Packet forwarding device
    10.
    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。