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    • 1. 发明授权
    • Packet transferring node
    • 分组传送节点
    • US08953591B2
    • 2015-02-10
    • US13570675
    • 2012-08-09
    • Masaki YamadaMitsuru NagasakaTakayuki MuranakaYoshihiro NakaoShinichi Akahane
    • Masaki YamadaMitsuru NagasakaTakayuki MuranakaYoshihiro NakaoShinichi Akahane
    • H04L12/28H04L12/703H04L12/751H04L12/721
    • H04L45/28H04L45/02H04L45/44
    • In a conventional “distributed” integrated network node architecture, specific judgment processes cannot be executed in any routing and transferring unit. The routing and transferring unit is required to share judgment process related information with an enhanced processing unit or other routing and transferring units. Thus, when using enhanced processing units, manufacturing costs increase, while processing speed decreases when routing and transferring units cooperate. If any flow is disposed during a transfer from a packet transferring unit in a routing and transferring unit to a processing unit, the packet is disposed regardless of packet priority. In the present invention, a packet related to a specific judgment process is always transmitted to a specific routing and transferring unit from a line interface unit. If an inputted flow is over the transferring capacity, the line interface unit analyzes the packet header and determines the type, transport priority, and disposal priority of the packet.
    • 在传统的“分布式”集成网络节点架构中,不能在任何路由和传送单元中执行特定的判断过程。 路由和传送单元需要与增强处理单元或其他路由和传送单元共享判断过程相关信息。 因此,当使用增强的处理单元时,制造成本增加,而路由和传送单元协作时处理速度降低。 如果在从路由和传送单元中的分组传送单元传送到处理单元的过程中布置任何流程,则不管分组优先级如何,分组被布置。 在本发明中,与特定判断处理相关的分组总是从线路接口单元发送到特定的路由和传送单元。 如果输入的流量超过传输容量,则线路接口单元分析分组报头并确定分组的类型,传输优先级和处置优先级。
    • 2. 发明授权
    • Network relay device and memory control method
    • 网络中继设备和内存控制方式
    • US08812754B2
    • 2014-08-19
    • US12813891
    • 2010-06-11
    • Kentaroh SugawaraShinichi AkahaneHiroki YanoYuichi Ishikawa
    • Kentaroh SugawaraShinichi AkahaneHiroki YanoYuichi Ishikawa
    • G06F3/00H04L12/28
    • H04L49/10
    • A network relay device includes a packet buffer for temporarily storing a received packet, and a packet buffer control section for changing an effective buffer number depending on the received amount of packet. When a traffic amount is small, the packet buffer control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the packet buffers. The network relay device further includes plural table memories storing a table for deciding the transfer destination of packet, and a table memory control section for changing an effective table number according to a required number of table entries. When the required table entry number is small, the table memory control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the table memories.
    • 网络中继装置包括用于临时存储接收到的分组的分组缓冲器,以及用于根据接收到的分组数量改变有效缓冲器数目的分组缓冲器控制部分。 当业务量小时,分组缓冲器控制部分通过停止向一部分分组缓冲器供电或提供时钟来降低功耗。 网络中继装置还包括多个表存储器,其存储用于决定分组的传送目的地的表,以及表存储器控制部,用于根据所需的表条目数来更改有效的表号。 当所需的表格入口号小时,表存储器控制部分通过停止向台式存储器的一部分供电或提供时钟来降低功耗。
    • 3. 发明授权
    • Network switching device
    • 网络交换设备
    • US08472618B2
    • 2013-06-25
    • US13149029
    • 2011-05-31
    • Masayuki ShinoharaNobuhito MatsuyamaTakayuki MuranakaIsao KimuraShinichi Akahane
    • Masayuki ShinoharaNobuhito MatsuyamaTakayuki MuranakaIsao KimuraShinichi Akahane
    • H04M1/00
    • H04L49/25H04L49/40H04L49/552
    • Network switching arrangements including: setting an operation mode of a target switching block to a operation mode that is different from an operation mode of a first switching block while the first switching block is handling a switching process, the target switching block being one switching block selected from second switching blocks; performing a switchover process including starting the switching process using the target switching block instead of the first switching block, after completion of setting the operation mode of the target switching block; and copying the switching information held by the first switching block to the target switching block, prior to starting the switching process using the target switching block, after completion of setting the operation mode of the target switching block.
    • 网络交换装置包括:在第一切换块正在处理切换处理的同时,将目标切换块的操作模式设置为与第一切换块的操作模式不同的操作模式,所述目标切换块是被选择的一个切换块 从第二切换块; 在完成所述目标切换块的操作模式之后,执行包括使用所述目标切换块而不是所述第一切换块开始切换处理的切换处理; 以及在完成对目标切换块的操作模式的设置之后,在开始使用目标切换块的切换处理之前,将由第一切换块保持的切换信息复制到目标切换块。
    • 7. 发明申请
    • COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION FAULT DETECTION METHOD
    • 通信设备,通信系统和通信故障检测方法
    • US20120026894A1
    • 2012-02-02
    • US13270305
    • 2011-10-11
    • Shinichi AKAHANETeruo KaganoiTomohiko KohnoKazuo Sugai
    • Shinichi AKAHANETeruo KaganoiTomohiko KohnoKazuo Sugai
    • G01R31/08
    • H04L1/22H04L1/24
    • The communication device has a frame transfer unit that executes frame transfer via the first communication link and the second communication link, a link confirmation frame sending unit, and a return link confirmation frame monitoring unit. The link confirmation frame sending unit causes the frame transfer processing unit to send a link confirmation frame for use in confirming a normal link status via the first communication link from the communication device to the counterpart communication device. The return link confirmation frame monitoring unit performs fault detection of the first and second communication links by monitoring a return link confirmation frame which is to be returned from the counterpart communication device to the communication device via the second communication link when the counterpart communication device receives the link confirmation frame via the first communication link.
    • 通信装置具有经由第一通信链路和第二通信链路执行帧传送的帧传送单元,链路确认帧发送单元和返回链路确认帧监视单元。 链接确认帧发送单元使得帧传送处理单元经由第一通信链路从通信装置向对方通信装置发送用于确认正常链路状态的链路确认帧。 返回链路确认帧监视单元,当对方通信装置接收到所述第一和第二通信链路时,通过监视从对方通信装置向通信装置返回的返回链路确认帧,对第一通信链路和第二通信链路进行故障检测 链路确认帧通过第一通信链路。
    • 8. 发明申请
    • NETWORK RELAY DEVICE AND MEMORY CONTROL METHOD
    • 网络继电器和存储器控制方法
    • US20110058564A1
    • 2011-03-10
    • US12813891
    • 2010-06-11
    • Kentaroh SUGAWARAShinichi AKAHANEHiroki YANOYuichi ISHIKAWA
    • Kentaroh SUGAWARAShinichi AKAHANEHiroki YANOYuichi ISHIKAWA
    • H04L12/56
    • H04L49/10
    • A network relay device includes a packet buffer for temporarily storing a received packet, and a packet buffer control section for changing an effective buffer number depending on the received amount of packet. When a traffic amount is small, the packet buffer control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the packet buffers. The network relay device further includes plural table memories storing a table for deciding the transfer destination of packet, and a table memory control section for changing an effective table number according to a required number of table entries. When the required table entry number is small, the table memory control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the table memories.
    • 网络中继装置包括用于临时存储接收到的分组的分组缓冲器,以及用于根据接收到的分组数量改变有效缓冲器数目的分组缓冲器控制部分。 当业务量小时,分组缓冲器控制部分通过停止向一部分分组缓冲器供电或提供时钟来降低功耗。 网络中继装置还包括多个表存储器,其存储用于决定分组的传送目的地的表,以及表存储器控制部,用于根据所需的表条目数来更改有效的表号。 当所需的表格入口号小时,表存储器控制部分通过停止向台式存储器的一部分供电或提供时钟来降低功耗。