公开(公告)号：US09088490B2

公开(公告)日：2015-07-21

申请号：US13872383

申请日：2013-04-29

Applicant: ALAXALA Networks Corporation

Inventor： Hiroto Ogaki ,  Hideo Kodaka

IPC: H04L1/00 ,  H04L12/24 ,  H04L12/12

CPC classification number: H04L41/0833 ,  H04L12/12 ,  H04L41/0663 ,  Y02D50/40

Abstract: A first network switching device communicates to and from a second network switching device different in at least one of a device configuration and a device performance. The network switching device has at least one of plurality of network interface units and packet forwarding unit which is a power state control subject. A power state control unit of the first network switching device transmits, in order to change the power state of the second network switching device, a forwarding performance notification including the forwarding performance of a power state control subject after the change to the second network switching device.

Abstract translation: 第一网络交换设备与设备配置和设备性能中的至少一个不同的第二网络交换设备进行通信。 网络交换装置具有作为电力状态控制对象的多个网络接口单元和分组转发单元中的至少一个。 第一网络交换设备的电源状态控制单元为了改变第二网络交换设备的电力状态，发送包括在改变为第二网络交换设备之后的电力状态控制对象的转发性能的转发性能通知 。

公开(公告)号：US09060013B2

公开(公告)日：2015-06-16

申请号：US13770550

申请日：2013-02-19

Applicant: ALAXALA Networks Corporation

Inventor： Yoshihiro Nakao ,  Masayuki Shinohara ,  Yoshinori Watanabe

IPC: H04L29/06

CPC classification number: H04L63/1408 ,  H04L63/1416 ,  H04L63/1441 ,  H04L63/1458

Abstract: A history management unit within a discard determination unit manages transmission and reception packets related to a resource to be protected for each of users, and records communication history information for users high in use frequency through stateful measurement. A priority determination unit determines the priority of a communication on a per received packet basis on the basis of communication history information. A load determination unit determines a load level of the resource to be protected, and combines the load level with the priority of the communication determined on the per received packet basis. A discard rate determination unit and a packet discard unit implement forwarding processing, determine the priority of the communication on the per user basis, and discard communications low in the priority at a high ratio.

Abstract translation: 丢弃判定单元内的历史管理单元管理与每个用户需要保护的资源相关的发送和接收分组，并通过有状态测量来记录用户频率高的用户的通信历史信息。 优先级确定单元基于通信历史信息确定每个接收到的分组的通信的优先级。 负载确定单元确定要保护的资源的负载水平，并且将负载水平与基于每个接收到的分组确定的通信的优先级进行组合。 丢弃率确定单元和分组丢弃单元实现转发处理，以每个用户为基础确定通信的优先级，并以高比率丢弃优先级低的通信。

公开(公告)号：US09030929B2

公开(公告)日：2015-05-12

申请号：US13662007

申请日：2012-10-26

Applicant: ALAXALA Networks Corporation

Inventor： Shohei Fukuzaki ,  Ken Watanabe

IPC: H04L1/22 ,  G06F11/20

CPC classification number: H04L1/22 ,  G06F11/2007 ,  G06F2201/845

Abstract: Network repeaters which each implement a redundant switching function previously grasp connection states of ports of a network system by using an inquiry frame and an exchange frame. At the time when a line is broken, when actively confirming a state of a port connected to a port in which a line is broken via a downstream device, the network repeaters each grasp that which portion of the line is broken and determine whether a switchover is required. Through the process, the network repeaters each prevent a useless switchover such as switching-back immediately after the switchover, and at the same time since a mechanism of waiting for a given length of times is not required, they each perform a fast switchover.

Abstract translation: 每个实现冗余切换功能的网络中继器先前通过使用查询帧和交换帧来掌握网络系统的端口的连接状态。 当线路断开时，当通过下游设备主动确认连接到其中线路断开的端口的端口的状态时，网络中继器各自掌握线路的哪个部分被破坏并且确定是否切换 是必须的。 通过该过程，网络中继器在切换后立即避免无切换的切换，如切换回切，同时由于不需要等待一段时间的机制，因此它们各自进行快速切换。

公开(公告)号：US20150113339A1

公开(公告)日：2015-04-23

申请号：US14585287

申请日：2014-12-30

Applicant: ALAXALA NETWORKS CORPORATION ,  HITACHI, LTD.

Inventor： Hideyuki MAGOSHI ,  Satoshi KIYOTOU

IPC: G06F11/07 ,  H04B7/15 ,  H04L12/24

CPC classification number: G06F11/0751 ,  H04B7/15 ,  H04L1/0091 ,  H04L41/0686 ,  H04L47/193 ,  H04L47/34 ,  H04L49/555 ,  H04L67/00 ,  H04L69/163

Abstract: A first network device includes: a forwarding controller configured to forward received data; and a fault detector configured to detect occurrence of a failure in a remote second relay node. The forwarding controller includes: a forwarding unit configured to forward the received data; and a modifier configured to modify the received data for detection of the occurrence of a failure in the second relay node. The modifier includes (i) a flag option marker configured to attach a flag to data; (ii) a sequence adding unit configured to add a protocol specific number to a sequence number; and (iii) a sequence subtracting unit configured to subtract the protocol specific number from an acknowledgement number. The fault detector detects the occurrence of a failure in the remote second relay node, based on at least one of the flag and the acknowledgement number.

Abstract translation: 第一网络设备包括：转发控制器，被配置为转发接收到的数据; 以及故障检测器，被配置为检测远程第二中继节点中的故障的发生。 转发控制器包括：转发单元，配置为转发接收到的数据; 以及修改器，被配置为修改所接收的数据，以检测第二中继节点中的故障的发生。 修饰符包括（i）被配置为将标志附加到数据的标志选项标记; （ii）序列添加单元，被配置为向序列号添加协议特定号码; 以及（iii）被配置为从确认号减去协议特定号码的序列减法单元。 故障检测器基于标志和确认号码中的至少一个来检测远程第二中继节点中的故障的发生。

公开(公告)号：US20150058682A1

公开(公告)日：2015-02-26

申请号：US14309247

申请日：2014-06-19

Applicant: ALAXALA Networks Corporation

Inventor： Takashi NAGUMO

IPC: G06F11/34 ,  G06F11/30

CPC classification number: G06F11/076 ,  G06F11/0724 ,  G06F11/3024 ,  G06F11/3055

Abstract: To detect a failure in each processor core appropriately. It is provided a network apparatus for transferring a packet, comprising: a control unit; and a network processor including a plurality of processor cores, each configured to perform a process of transferring a packet input over a network. The control unit being configured to: transmit a packet to the network processor; acquire a packet processing status of each of the plurality of processor cores; and monitor a status of the each of the plurality of processor cores based on the acquired packet processing status.

Abstract translation: 以适当地检测每个处理器核心的故障。 提供了一种用于传送分组的网络装置，包括：控制单元; 以及包括多个处理器核心的网络处理器，每个处理器核心被配置为执行传送通过网络输入的分组的处理。 所述控制单元被配置为：向所述网络处理器发送分组; 获取所述多个处理器核心中的每一个的分组处理状态; 并且基于所获取的分组处理状态来监视所述多个处理器核心中的每一个的状态。

公开(公告)号：US20150036688A1

公开(公告)日：2015-02-05

申请号：US14450552

申请日：2014-08-04

Applicant: ALAXALA Networks Corporation

Inventor： Yuichi ISHIKAWA ,  Takao NARA

IPC: H04L12/743 ,  H04L12/851 ,  H04L12/56

CPC classification number: H04L45/7457 ,  H04L45/38 ,  H04L47/2441

Abstract: A packet relay device has a packet receiving unit, a switch, a packet sending unit, an associative memory, and a packet search unit. The packet search unit has action registers which hold information specifying an action to be executed, holds address range information including consecutive address ranges of the associative memory and the action registers in association with each other, and registers a plurality of flow entries at a plurality of addresses in the same address range. The flow entries have conditions identifying the flows associated with the same action. The device inputs header information of the packets into the associative memory, determines the action to be executed in accordance with information read out from the action register corresponding to the address range including an address output from the associative memory, and executes the determined action.

Abstract translation: 分组中继装置具有分组接收单元，交换机，分组发送单元，关联存储器和分组搜索单元。 分组搜索单元具有保存指定要执行的动作的信息的动作寄存器，保持包括关联存储器和动作寄存器的连续地址范围的地址范围信息，并且将多个流条目记录在多个 地址范围相同。 流条目具有标识与相同动作相关联的流的条件。 该设备将分组的报头信息输入到关联存储器中，根据从包括从关联存储器输出的地址的地址范围对应的动作寄存器读出的信息来确定要执行的动作，并执行确定的动作。

公开(公告)号：US20140373112A1

公开(公告)日：2014-12-18

申请号：US14474666

申请日：2014-09-02

Applicant: ALAXALA Networks Corporation

Inventor： Hidemitsu HIGUCHI ,  Motohide NOMI

IPC: H04W12/06 ,  H04L29/06

CPC classification number: H04W12/06 ,  H04L63/08 ,  H04L63/205

Abstract: A communication apparatus including: a plurality of physical ports to be coupled to different terminals via a network; a plurality of authentication processing units configured to execute an authentication process; and a controller configured to determine which one of the physical ports on which a packet was received from a terminal, to specify a preset authentication process corresponding to the determined physical port on which a packet was received, and to distribute the specified authentication process of the packet from the terminal to an authentication processing unit for executing.

Abstract translation: 一种通信装置，包括：经由网络耦合到不同终端的多个物理端口; 被配置为执行认证处理的多个认证处理单元; 以及控制器，被配置为确定从终端接收到分组的物理端口中的哪一个，以指定与所确定的接收到分组的物理端口相对应的预设认证处理，并且分发所指定的认证过程 分组从终端到认证处理单元执行。

公开(公告)号：US20140237544A1

公开(公告)日：2014-08-21

申请号：US14038052

申请日：2013-09-26

Applicant: ALAXALA Networks Corporation

Inventor： Hidemitsu HIGUCHI ,  Hirotaka SUNAMI ,  Motohide NOMI

IPC: H04L29/06

CPC classification number: H04L63/0884 ,  H04L63/0272 ,  H04L63/0807 ,  H04L63/168 ,  H04L67/02

Abstract: It is provided an authentication method for realizing a network authentication function for an authentication system, the authentication system including an authentication server for authenticating a terminal used by a user, and a switch for mediating an authentication sequence between the terminal and the authentication server. The authentication method includes steps of: providing, by the switch, identification information for identifying the switch to the authentication server in the authentication sequence; authenticating, by the authentication server, an authentication request transmitted from the terminal; transmitting, by the authentication server, an authentication result of the authentication to the switch based on the provided identification information on the switch; and authenticating, by the switch, access from the terminal based on the authentication result received from the authentication server.

Abstract translation: 提供了一种用于实现认证系统的网络认证功能的认证方法，所述认证系统包括用于认证用户使用的终端的认证服务器和用于中介终端与认证服务器之间的认证序列的交换机。 所述认证方法包括以下步骤：由所述交换机提供用于在所述认证序列中识别所述认证服务器的交换机的识别信息; 由认证服务器认证从终端发送的认证请求; 由所述认证服务器根据所述交换机上提供的识别信息向所述交换机发送认证的认证结果; 并且基于从认证服务器接收到的认证结果，通过交换机认证从终端的接入。

公开(公告)号：US20140226678A1

公开(公告)日：2014-08-14

申请号：US14035289

申请日：2013-09-24

Applicant: Alaxala Networks Corporation

Inventor： Tomohiko KONO

IPC: H04L12/935

CPC classification number: H04L49/30 ,  H04L49/10

Abstract: It is provided a communication apparatus for transferring frames, comprising: a controller for controlling operation of the communication apparatus; an interface for inputting/outputting the frames; and a plurality of frame processing parts for processing the input frames. The plurality of frame processing parts each includes: a plurality of storage areas for recording statistics of the frames to be processed; an identifier assigning part for determining, for each of the input frames, one storage area in which the statistics are to be recorded out of the plurality of storage areas, and assigning identification for identifying the determined one storage area to the each of the input frames; and a statistical processing part for updating the statistics that are recorded in the one storage area identified by the identification, by using a result of statistical processing of the frame.

Abstract translation: 提供了一种用于传送帧的通信装置，包括：控制器，用于控制通信装置的操作; 用于输入/输出帧的接口; 以及用于处理输入帧的多个帧处理部分。 多个帧处理部分各自包括：用于记录要处理的帧的统计的多个存储区域; 标识符分配部分，用于为每个输入帧确定要从多个存储区域中记录统计数据的一个存储区域，以及将识别确定的一个存储区域的标识分配给每个输入帧 ; 以及统计处理部分，用于通过使用帧的统计处理的结果来更新记录在由该识别识别的一个存储区域中的统计信息。

公开(公告)号：US20140003443A1

公开(公告)日：2014-01-02

申请号：US13720523

申请日：2012-12-19

Applicant: ALAXALA Networks Corporation

Inventor： TOMOHIKO KONO

IPC: H04L12/12 ,  H04L12/66

CPC classification number: H04L12/12 ,  G06F1/32 ,  G06F1/3206 ,  G06F1/3209 ,  G06F1/3237 ,  G06F1/324 ,  H04J3/0697 ,  H04L12/66 ,  Y02D10/126 ,  Y02D10/128

Abstract: A network relay apparatus includes: a clock generation circuit, a processing circuit, a load detector and a clock cutoff circuit. The clock generation circuit is configured to generate a clock signal having periodical clock pulses. The processing circuit is configured to operate in synchronism with the clock pulses, in order to process data that is to be relayed by the network relay apparatus. The load detector is configured to detect a load of processing by the processing circuit. The clock cutoff circuit is configured to cut off supply of the clock pulses from the clock generation circuit to the processing circuit in order to partially eliminate the clock pulses at a rate corresponding to the load detected by the load detector and to provide the clock signal having the partially eliminated clock pulses to the processing circuit.

Abstract translation: 网络中继装置包括：时钟产生电路，处理电路，负载检测器和时钟截止电路。 时钟发生电路被配置为产生具有周期性时钟脉冲的时钟信号。 处理电路被配置为与时钟脉冲同步地操作，以便处理由网络中继装置中继的数据。 负载检测器被配置为检测处理电路的处理负载。 时钟切断电路被配置为切断从时钟产生电路到处理电路的时钟脉冲的供应，以便以与负载检测器检测到的负载相对应的速率部分地消除时钟脉冲，并提供具有 部分消除的时钟脉冲到处理电路。