利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.018 秒)

    Router
    32.
    发明公开
    Router 审中-公开
    路由器

    公开(公告)号：EP1246410A2

    公开(公告)日：2002-10-02

    申请号：EP01117760.7

    申请日：2001-07-31

    申请人： Hitachi, Ltd.

    发明人： Akahane, Shinichi ,  Aimoto, Takeshi

    IPC分类号： H04L12/56

    CPC分类号： H04L47/10 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28 ,  H04L45/302 ,  H04L45/54 ,  H04L45/60 ,  H04L47/125 ,  H04L47/2441 ,  H04L47/32 ,  H04L47/34

    摘要： A router (100) comprising a priority level distinguishing means for distinguishing the priority level of a packet by referring to the information contained in the header part (210) of the packet, a routing table (800) where an output path (802) comprising one or more output lines (160-1, 160-2, 160-M) can be mapped to each level of priority (Qos), an output path determining unit (603) that searches the routing table (800) and determines an output path (802) to be used for sending out packets, and a preferential delivery controller (504) that executes delivery control in accordance with the priority level (Qos) for each output line (160-1, 160-2, 160-M) corresponding to the output path (802). In response to a fault state in a preferred output line (160-1), the router can reroute high priority packets over an alternative output line (160-2) while maintaining priority. The router (100) may also calculate a distribution ratio to determine the optimal load for each output line (160-1, 160-2, 160-M) for a given packet priority.

    摘要翻译： 一种路由器（100），包括优先级等级识别装置，用于通过参考包含在分组的报头部分（210）中的信息来区分分组的优先级;路由表（800），其中输出路径（802）包括 可以将一个或多个输出线（160-1,160-2,160-M）映射到每个优先级（Qos），输出路径确定单元（603），其搜索路由表（800）并确定输出 用于发送分组的路径（802），以及根据每个输出线（160-1,160-2,160-M）的优先级（Qos）执行传送控制的优先传送控制器（504） 对应于输出路径（802）。 响应于优选输出线路（160-1）中的故障状态，路由器可以通过替代输出线路（160-2）重新路由高优先级分组，同时保持优先级。 路由器（100）还可以计算分配比率，以确定针对给定分组优先级的每条输出线路（160-1,160-2,160-M）的最佳负载。

    Bandwidth monitoring method and device
    33.
    发明公开
    Bandwidth monitoring method and device 有权
    Vorrichtung und Verfahren zurBandbreitenüberwachung

    公开(公告)号：EP1058424A2

    公开(公告)日：2000-12-06

    申请号：EP00111053.5

    申请日：2000-06-02

    申请人： Hitachi, Ltd.

    发明人： Yazaki, Takeki ,  Aimoto, Takeshi

    IPC分类号： H04L12/56 ,  H04Q11/04

    CPC分类号： H04L12/5602 ,  H04L2012/5636 ,  H04L2012/5651 ,  H04Q11/0478

    摘要： A bandwidth monitoring device for use in a network for transferring priority packets in preference to non priority packets as far as the amount of the priority packets is within a contract bandwidth established between a network user and a network operator, comprising a bandwidth check result decision unit (520, 1320) for detecting whether the bandwidth of the priority packets is less than the contract bandwidth, and a DSCP decision unit (530) for determining that a non priority packet may be transferred as a priority packet when the bandwidth of the priority packets is less than the contract bandwidth thereby to sufficiently use the contract bandwidth.

    摘要翻译： 一种用于网络中的带宽监视设备，用于优先于非优先级分组传输优先级分组，直到所述优先级分组的数量在网络用户和网络运营商之间建立的合同带宽内，包括带宽检查结果决定单元 （520,1320），用于检测所述优先级分组的带宽是否小于所述合同带宽;以及DSCP决定单元（530），用于当所述优先级分组的带宽作为优先分组时，确定所述非优先分组可以作为优先分组传送 小于合同带宽，从而充分利用合同带宽。

    ATM switch and congestion control method
    34.
    发明公开
    ATM switch and congestion control method 失效
    ATM交换机和过载控制方法

    公开(公告)号：EP0847219A3

    公开(公告)日：1999-12-08

    申请号：EP97121249.3

    申请日：1997-12-03

    申请人： Hitachi, Ltd.

    发明人： Yazaki, Takeki ,  Aimoto, Takeshi

    IPC分类号： H04Q11/04 ,  H04L12/56

    CPC分类号： H04L49/505 ,  H04L49/103 ,  H04L49/108 ,  H04L49/3009 ,  H04L49/3081 ,  H04L49/501 ,  H04L2012/5619 ,  H04L2012/5636 ,  H04L2012/5651 ,  H04L2012/5681 ,  H04Q11/0478

    摘要： An ATM switch having a packet level discard function includes an upstream congestion detection circuit (127) for detecting a congestion state of an ATM switch provided in the upstream and a packet level discard control table (129) for holding at every connection a packet level discard priority (703-2j) indicating whether the ATM switch provided in the upstream has the packet level discard function or not, and wherein cells transmitted via an ATM switch not having a packet level discard function or an ATM switch which is not in the congestion state are packet-level-discarded with a priority to other cells. Thus, it is possible to improve a goodput of the ATM network in which ATM switches having a packet level discard function and ATM switches not having a packet level discard function are provided in a mixed state.