Communication device and communication method

    公开(公告)号:US10257087B2

    公开(公告)日:2019-04-09

    申请号:US15495060

    申请日:2017-04-24

    Abstract: Provided is a communication device in which communication between hosts of a layer 2 network is overlaid on a layer 3 network. The communication device manages a first MTU length of each communication path with respect to a plurality of communication paths in the layer 3 network, determines a second MTU length based on information to be added in cases where communication between the hosts of the layer 2 network is overlaid via the plurality of communication paths, and notifies the hosts of the second MTU length.

    PACKET TRANSFER DEVICE AND PACKET TRANSFER SYSTEM

    公开(公告)号:US20190089548A1

    公开(公告)日:2019-03-21

    申请号:US16018114

    申请日:2018-06-26

    Inventor: Naohisa KOIE

    Abstract: A packet transfer device including a PoE port includes a power supply unit that controls power supply to the PoE port and measures a power supply amount, a packet switching unit that transfers a packet via the PoE port and another port of the packet transfer device and measures a communication volume of the PoE port, a profile holding unit that holds a profile indicating a normal operation region of a device connected to the PoE port using a map of a correlation of the power supply amount and the communication volume, a correlation analyzing unit that determines whether or not the device is abnormal on the basis of the power supply amount measured by the power supply unit, the communication volume measured by the packet switching unit, and the profile held in the profile holding unit, and a CPU unit that controls the respective units of the packet transfer.

    Transfer apparatus and recovery control device

    公开(公告)号:US10082967B2

    公开(公告)日:2018-09-25

    申请号:US14857951

    申请日:2015-09-18

    Inventor: Toru Asahina

    Abstract: A transfer apparatus includes a CPU, a memory, a recovery control unit, a non-volatile memory coupled to the recovery control unit, a transfer engine, and a volatile memory, wherein the volatile memory stores a first transfer information base, wherein the non-volatile memory stores a second transfer information base, and the recovery control unit is configured to update the second transfer information base in a case of receiving an instruction to update the second transfer information base, transmit an instruction to update the first transfer information base to the transfer engine, check the consistency of the first transfer information base and the second transfer information base in a case where the transfer apparatus is rebooted, and recover the first transfer information base by using the second transfer information base in a case where the first transfer information base and the second transfer information base are consistent.

    COMMUNICATION DEVICE AND COMMUNICATION METHOD

    公开(公告)号:US20170289055A1

    公开(公告)日:2017-10-05

    申请号:US15455627

    申请日:2017-03-10

    CPC classification number: H04L47/32 H04L47/22 H04L47/30

    Abstract: In a core node, packet related information included in a packet is extracted, a virtual queue length, which is an estimated value of a queue length of a transmission queue addressed to a user in an edge device, is calculated and held on a user basis on the basis of the packet related information and band information of a line between the edge device and the user, and a determination is made, on a user basis, as to whether or not band control is required, on the basis of the virtual queue length and predetermined conditions so as to perform, on the basis of the result of the determination, the band control of the packet addressed to the user on a user basis in a packet relay part.

    Network apparatus and packet processing device

    公开(公告)号:US09680768B2

    公开(公告)日:2017-06-13

    申请号:US14761744

    申请日:2013-02-18

    CPC classification number: H04L49/101 H04W72/044

    Abstract: There is a need for a network interface supporting various line speeds to have a smaller size and provide more flexible accommodation than the related art. In the present invention, provided is a communication device including a transfer processing unit which has four connectors capable of coupling with network interface units to be accommodated in one slot, and a packet processing circuit configured to process a packet input from the network interface via any one of the connectors and output the packet toward the network interface unit to be coupled with the connector, and a path control unit configured to manage a path between the packet processing circuit and the connector.

    COMMUNICATION APPARATUS
    86.
    发明申请
    COMMUNICATION APPARATUS 审中-公开
    通讯设备

    公开(公告)号:US20170063861A1

    公开(公告)日:2017-03-02

    申请号:US15230511

    申请日:2016-08-08

    Abstract: A communication apparatus receives control information of first data and a plurality of types of header information of first data, the first data being received by a first data receiver; selects a parameter from the plurality of types of header information of the first data based on a priority of a first data receiver group to which the first data receiver belongs and a storage condition, the priority being indicated by priority information, the storage condition indicating the number of entries of a whitelist that can be stored in a whitelist storage first memory; and add, to the whitelist, an entry that includes control information of the first data and at least one parameter selected above.

    Abstract translation: 通信装置接收由第一数据接收机接收的第一数据的控制信息和第一数据的多种类型的报头信息,第一数据被接收; 基于第一数据接收器所属的第一数据接收器组的优先级和存储条件,优先级由优先级信息指示的第一数据的标题信息的多种类型的标题信息中选择参数,指示 可以存储在白名单存储第一存储器中的白名单的条目数; 并向所述白名单添加包括所述第一数据的控制信息和至少一个上述选择的参数的条目。

    CONNECTOR HOUSING APPARATUS AND INTER-CONNECTOR CONNECTING SYSTEM
    88.
    发明申请
    CONNECTOR HOUSING APPARATUS AND INTER-CONNECTOR CONNECTING SYSTEM 有权
    连接器外壳和连接器连接系统

    公开(公告)号:US20160248204A1

    公开(公告)日:2016-08-25

    申请号:US15052073

    申请日:2016-02-24

    CPC classification number: H05K7/1409 H05H5/00

    Abstract: A connector housing apparatus includes a main body section that has a plurality of connectors confronting a plurality of external connectors of an external housing and a moving guide section that guides movement of the main body section toward the external housing. The moving guide section has a latching section that latches the moving guide section on the external housing. The main body section is connected to the moving guide section so as to be movable in a fitting direction of the plurality of connectors. The latching section latches the moving guide section on a position at which the plurality of connectors are fitted to the plurality of external connectors. The main body section moves along the moving guide section in the fitting direction of the plurality of connectors, and thereby the plurality of connectors are fitted to the plurality of external connectors.

    Abstract translation: 连接器壳体装置包括:主体部,其具有面对外部壳体的多个外部连接器的多个连接器和引导主体部分朝向外部壳体的移动的移动引导部。 移动引导部具有将移动引导部分锁定在外部壳体上的闩锁部。 主体部与移动引导部连接,能够在多个连接器的嵌合方向上移动。 闩锁部分将移动引导部分锁定在多个连接器装配到多个外部连接器的位置上。 主体部分沿着移动引导部分沿着多个连接器的装配方向移动,从而多个连接器装配到多个外部连接器。

    Packet transfer apparatus and packet relay method
    89.
    发明授权
    Packet transfer apparatus and packet relay method 有权
    分组传送装置和分组中继方法

    公开(公告)号:US09356864B2

    公开(公告)日:2016-05-31

    申请号:US14262831

    申请日:2014-04-28

    CPC classification number: H04L45/745 H04L45/7457

    Abstract: It is provided a packet transfer apparatus comprising: a packet reception part; a packet transmission part; a packet generation part for generating an own-apparatus-originated packet serving as a packet for instructing a predetermined operation and outputting the own-apparatus-originated packet; a packet search part for determining a content of flow control and searching for an output circuit; a search memory for storing the content of the flow control and information for identifying the output circuit outputting the packet; and a packet transfer processing part. The packet reception part determines whether the received packet is the own-apparatus-originated packet; and outputs a self-origination flag indicating a result of the determining and header information of the received packet to the packet search part. The packet search part determines the content of the flow control for the received packet by referring to the search memory based on the self-origination flag and the header information.

    Abstract translation: 提供了一种分组传送装置,包括:分组接收部分; 分组传输部分; 分组生成部,其生成用作指示预定操作的分组的自身装置发起的分组,并输出自身装置发起的分组; 分组搜索部分,用于确定流量控制的内容并搜索输出电路; 用于存储流量控制的内容的搜索存储器和用于识别输出分组的输出电路的信息; 和分组传送处理部分。 分组接收部确定接收到的分组是否是自身装置发起的分组; 并且向分组搜索部分输出指示所确定的结果的自发标志和接收到的分组的报头信息。 分组搜索部分基于自发起始标志和头信息,通过参考搜索存储器来确定接收到的分组的流控制的内容。

    Network relay apparatus
    90.
    发明授权
    Network relay apparatus 有权
    网络中继装置

    公开(公告)号:US09237096B2

    公开(公告)日:2016-01-12

    申请号:US13713038

    申请日:2012-12-13

    Abstract: The network relay apparatus is provided. The network relay apparatus includes: a main controller; a relay processor; and, a network interface unit configured to include: a plurality of line interfaces to which physical lines are respectively connected and send and receive a packet to and from outside of the network relay apparatus; a data storage configured to store circuit data; a programmable logic device by with a logic circuit having a predetermined function is realized; a configuration circuit configured to direct the programmable logic device to configure the logic circuit using the circuit data; and a state controller provided in a circuit structure other than the programmable logic device to control state of each of the plurality of line interfaces to one of an active state which allows data transmission and reception and a standby state which prohibits data transmission and reception.

    Abstract translation: 提供网络中继装置。 网络中继装置包括:主控制器; 中继处理器 以及网络接口单元,被配置为包括:多个线路接口,物理线路分别连接到所述多个线路接口,并向所述网络中继设备外部发送和接收分组; 数据存储器,被配置为存储电路数据; 实现了具有预定功能的逻辑电路的可编程逻辑器件; 配置电路,被配置为引导所述可编程逻辑器件使用所述电路数据配置所述逻辑电路; 以及以可编程逻辑器件以外的电路结构提供的状态控制器,以将多个线路接口中的每一个的状态控制为允许数据发送和接收的活动状态之一以及禁止数据发送和接收的待机状态。

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