Apparatus and method for switching a packet
    1.
    发明授权
    Apparatus and method for switching a packet 有权
    用于切换分组的装置和方法

    公开(公告)号:US09495256B2

    公开(公告)日:2016-11-15

    申请号:US13595224

    申请日:2012-08-27

    摘要: An apparatus includes a first switch circuit in an active mode and a second switch circuit in a standby mode. The apparatus receives high-priority packets and low-priority packets. Each switch circuit stores the high-priority packets and the low-priority packets into first and second buffers, respectively. The each switch circuit performs packet-readout processing reading out a packet from the first and second buffers where the packet-readout processing is performed on the first buffer on a priority basis. The apparatus controls the first switch circuit so that a back-pressure time for the high-priority packets becomes longer with increasing amount of data transmitted by the high-priority packets, when a low-priority packet outputted from the first switch circuit is determined to be a packet that has been received at a first time that is later than a second time at which another low-priority packet outputted from the second switch circuit has been received.

    摘要翻译: 一种装置包括处于待机模式的第一开关电路和处于待机模式的第二开关电路。 该设备接收高优先级的报文和低优先级的报文。 每个开关电路分别将高优先级分组和低优先级分组存储到第一和第二缓冲器中。 每个开关电路执行分组读出处理,从第一和第二缓冲器读出分组,其中在第一缓冲器上优先执行分组读出处理。 当从第一开关电路输出的低优先级分组被确定为:第一开关电路时,随着高优先级分组发送的数据量的增加,高优先级分组的背压时间变长, 是在第一时间接收到的分组,该分组晚于在第二时间接收到从第二开关电路输出的另一低优先级分组的分组。

    Routing control method, communication apparatus and communication system
    2.
    发明授权
    Routing control method, communication apparatus and communication system 有权
    路由控制方法,通信装置和通信系统

    公开(公告)号:US08331241B2

    公开(公告)日:2012-12-11

    申请号:US12554278

    申请日:2009-09-04

    申请人: Kazuto Nishimura

    发明人: Kazuto Nishimura

    摘要: A routing control method includes learning a route of receiving a first packet, which first packet has identification information attached thereto, only for the first packet having first arrived among a plurality of first packets that have identification information common to that of the first packet, which route is applied for transmitting a second packet having the same identification information as that of the first packet; and transmitting the first packet, wherein transmitting the first packet is done in a controlled manner depending on a condition of the first packet, wherein the controlled manner of transmitting the first packet includes controlling timing of the transmitting the first packet.

    摘要翻译: 路由选择控制方法包括:在第一分组具有第一分组的路由中,所述第一分组具有附加到其上的标识信息,仅针对具有与第一分组共享的标识信息的多个第一分组中的第一分组首先到达, 路由被应用于发送具有与第一分组相同的标识信息的第二分组; 并且发送所述第一分组,其中根据所述第一分组的条件以受控方式完成发送所述第一分组,其中,所述受控发送所述第一分组的方式包括控制所述发送所述第一分组的定时。

    PACKET BUFFERING DEVICE AND PACKET DISCARDING METHOD
    3.
    发明申请
    PACKET BUFFERING DEVICE AND PACKET DISCARDING METHOD 有权
    分组缓冲设备和分组解决方法

    公开(公告)号:US20110286468A1

    公开(公告)日:2011-11-24

    申请号:US13195109

    申请日:2011-08-01

    IPC分类号: H04L12/56

    摘要: A packet buffering device includes: a queue for temporarily holding an arriving packet; a residence time predicting unit which predicts a length of time during which the arriving packet will reside in the queue; and a packet discarding unit which discards the arriving packet when the length of time predicted by the residence time predicting unit exceeds a first reference value.

    摘要翻译: 分组缓存装置包括:用于临时保持到达分组的队列; 停留时间预测单元,其预测到达的分组将驻留在队列中的时间长度; 以及分组丢弃单元,当由所述停留时间预测单元预测的时间长度超过第一参考值时,丢弃所述到达分组。

    Inter-ring connection method and device
    4.
    发明授权
    Inter-ring connection method and device 有权
    环形连接方式和设备

    公开(公告)号:US07512140B2

    公开(公告)日:2009-03-31

    申请号:US11212284

    申请日:2005-08-26

    摘要: In an inter-ring connection method and device interconnecting a plurality of RPR rings, an inter-ring connecting device (interconnecting station) determines whether or not an RPR frame received from one ring is a broadcast frame; and resets, when the RPR frame determined to be the broadcast frame is relayed to another ring, a ttl of the frame so that a predetermined point between the inter-ring connection device itself and another identical inter-ring connection device opposed within a ring to be relayed is a cleave point. Also, topology information of the one ring is transmitted to another ring; topology information of each ring is held in a topology database; and an RPR frame is relayed (unicasted) between the rings by referring to the topology database based on a destination address of the RPR frame.

    摘要翻译: 在互联连接方法和互连多个RPR环的设备之间,环形连接设备(互连站)确定从一个环接收的RPR帧是否是广播帧; 并且当确定为广播帧的RPR帧被中继到另一个环时,将该帧的ttl重置,使得在环形连接设备本身与另一个相同的环形连接设备之间的预定点在环内相对 被传递是一个切入点。 此外,一个环的拓扑信息被传送到另一个环; 每个环的拓扑信息保存在拓扑数据库中; 并且通过参考基于RPR帧的目的地址的拓扑数据库,在环之间中继(单播)RPR帧。

    Inquiry responding apparatus and method, and program used therewith
    5.
    发明授权
    Inquiry responding apparatus and method, and program used therewith 有权
    查询响应装置和方法以及与其一起使用的程序

    公开(公告)号:US07099874B2

    公开(公告)日:2006-08-29

    申请号:US10419747

    申请日:2003-04-22

    IPC分类号: G06F7/00 G06F17/30 G06F17/00

    摘要: An inquiry respondinq apparatus receives an inquiry and stores a response to the inquiry in a first database. The apparatus determines whether or not the first database can be searched for the response to the inquiry, and when it is determined that the first database can be searched for the response to the inquiry, and when it is determined that the first database can be searched, a search for the response is performed. However, when it is determined that the first database cannot be searched, the apparatus transmits the inquiry to an external information processing device, and the apparatus receives a response to the inquiry which is transmitted from the external information processing device. Then, one of the response obtained by searching the first database and the response received from the external device is displayed on a display.

    摘要翻译: 询问回复设备接收查询并将对该查询的响应存储在第一数据库中。 该装置确定可以搜索第一数据库对于查询的响应,以及当确定可以搜索第一数据库以查询对该查询的响应时,以及当确定可以搜索第一数据库时 ,执行响应的搜索。 然而,当确定不能搜索第一数据库时,设备将查询发送到外部信息处理设备,并且该设备从外部信息处理设备接收对查询的响应。 然后,通过搜索第一数据库获得的响应和从外部设备接收的响应之一显示在显示器上。

    Relay device
    6.
    发明申请
    Relay device 有权
    继电器

    公开(公告)号:US20060140167A1

    公开(公告)日:2006-06-29

    申请号:US11102690

    申请日:2005-04-11

    申请人: Kazuto Nishimura

    发明人: Kazuto Nishimura

    IPC分类号: H04L12/28 H04L12/56

    摘要: A relay device includes a plurality of physical ports physically connected to a plurality of other relay devices on a network to form physical links; a setting unit for setting one or more logical links for each of the physical links; an evaluation unit for automatically adding an evaluated value based on communication characteristics of the logical link when a control packet is received from a first relay device through the logical link or the control packet is transferred to a second relay device through the logical link; and a unit for selecting, when there are a plurality of routes that merge at the relay device, one of the routes based on evaluated values accumulated by the other relay devices.

    摘要翻译: 中继设备包括物理上连接到网络上的多个其他中继设备的多个物理端口以形成物理链路; 设置单元,用于为每个物理链路设置一个或多个逻辑链路; 当通过逻辑链路或控制分组从第一中继装置接收到控制分组时,基于逻辑链路的通信特性自动添加评估值的评估单元通过逻辑链路传送到第二中继装置; 以及用于当存在在中继装置处合并的多个路由时,基于由其他中继装置累积的评估值来选择一个路由的单元。

    Packet transmitting apparatus and network system
    7.
    发明授权
    Packet transmitting apparatus and network system 有权
    分组发送装置和网络系统

    公开(公告)号:US08811376B2

    公开(公告)日:2014-08-19

    申请号:US11934236

    申请日:2007-11-02

    申请人: Kazuto Nishimura

    发明人: Kazuto Nishimura

    摘要: A packet transmitting apparatus according to the present invention includes a plurality of ports. When the same unlearned packets have arrived at the plurality of ports, the packet transmitting apparatus judges through packet processing section that the first arrived one of the packets is a previous arrival packet. Then, through previous arrival group judging section, the packet transmitting apparatus selects from the plurality of ports a plurality of ports satisfying a previous arrival port condition for determining a port at which the previous arrival packet arrives as a previous arrival port. The packet transmitting apparatus judges the thus selected plurality of ports as the previous arrival ports having an equal previous arrival characteristic of packets, and includes the ports in a previous arrival port group.

    摘要翻译: 根据本发明的分组发送装置包括多个端口。 当相同的未分析的分组到达多个端口时,分组发送装置通过分组处理部分来判断分组中的第一个到达的一个是先前的到达分组。 然后,通过前次到达组判定部,分组发送装置从多个端口选择满足先前到达端口条件的多个端口,用于确定先前到达分组到达的端口作为先前到达端口。 分组发送装置将这样选择的多个端口判断为具有相同的分组的先前到达特性的先前到达端口,并且包括先前到达端口组中的端口。

    First-arrival learning method, relay apparatus, and computer product
    8.
    发明授权
    First-arrival learning method, relay apparatus, and computer product 有权
    先到先得的学习方法,中继设备和计算机产品

    公开(公告)号:US07760667B2

    公开(公告)日:2010-07-20

    申请号:US11799134

    申请日:2007-04-30

    IPC分类号: H04L12/66

    摘要: A learning-target packet to be used for a path learning is selected from among a plurality of packets queued by a relay apparatus. A relationship between a transmission-source address and a first-arrival port for the selected learning-target packet is registered as learning information. A packet corresponding to the registered learning information is transferred to the first-arrival port pertaining to the learning information, and a packet that does not correspond to the learning information is transferred to all ports to which the packet is to be transferred.

    摘要翻译: 从由中继装置排队的多个分组中选择用于路径学习的学习目标分组。 将所选择的学习目标分组的发送源地址和第一到达端口之间的关系登记为学习信息。 与注册的学习信息对应的分组被传送到与学习信息有关的第一到达端口,并且不对应于学习信息的分组被传送到要传送分组的所有端口。

    Relay device for selecting an optimal path
    9.
    发明授权
    Relay device for selecting an optimal path 有权
    用于选择最佳路径的中继设备

    公开(公告)号:US07613122B2

    公开(公告)日:2009-11-03

    申请号:US11102690

    申请日:2005-04-11

    申请人: Kazuto Nishimura

    发明人: Kazuto Nishimura

    IPC分类号: G01R31/08 H04L12/28

    摘要: A relay device includes a plurality of physical ports physically connected to a plurality of other relay devices on a network to form physical links; a setting unit for setting one or more logical links for each of the physical links; an evaluation unit for automatically adding an evaluated value based on communication characteristics of the logical link when a control packet is received from a first relay device through the logical link or the control packet is transferred to a second relay device through the logical link; and a unit for selecting, when there are a plurality of routes that merge at the relay device, one of the routes based on evaluated values accumulated by the other relay devices.

    摘要翻译: 中继设备包括物理上连接到网络上的多个其他中继设备的多个物理端口以形成物理链路; 设置单元,用于为每个物理链路设置一个或多个逻辑链路; 当通过逻辑链路或控制分组从第一中继装置接收到控制分组时,基于逻辑链路的通信特性自动添加评估值的评估单元通过逻辑链路传送到第二中继装置; 以及用于当存在在中继装置处合并的多个路由时,基于由其他中继装置累积的评估值来选择一个路由的单元。

    PACKET TRANSMITTING APPARATUS AND NETWORK SYSTEM
    10.
    发明申请
    PACKET TRANSMITTING APPARATUS AND NETWORK SYSTEM 有权
    分组传输设备和网络系统

    公开(公告)号:US20080130650A1

    公开(公告)日:2008-06-05

    申请号:US11934236

    申请日:2007-11-02

    申请人: Kazuto Nishimura

    发明人: Kazuto Nishimura

    IPC分类号: H04L12/56

    摘要: A packet transmitting apparatus according to the present invention includes a plurality of ports. When the same unlearned packets have arrived at the plurality of ports, the packet transmitting apparatus judges through packet processing section that the first arrived one of the packets is a previous arrival packet. Then, through previous arrival group judging section, the packet transmitting apparatus selects from the plurality of ports a plurality of ports satisfying a previous arrival port condition for determining a port at which the previous arrival packet arrives as a previous arrival port. The packet transmitting apparatus judges the thus selected plurality of ports as the previous arrival ports having an equal previous arrival characteristic of packets, and includes the ports in a previous arrival port group.

    摘要翻译: 根据本发明的分组发送装置包括多个端口。 当相同的未分析的分组到达多个端口时,分组发送装置通过分组处理部分来判断分组中的第一个到达的一个是先前的到达分组。 然后,通过前次到达组判定部,分组发送装置从多个端口选择满足先前到达端口条件的多个端口,用于确定先前到达分组到达的端口作为先前到达端口。 分组发送装置将这样选择的多个端口判断为具有相同的分组的先前到达特性的先前到达端口,并且包括先前到达端口组中的端口。