公开(公告)号：US09559986B2

公开(公告)日：2017-01-31

申请号：US13924963

申请日：2013-06-24

Applicant: ALAXALA Networks Corporation

Inventor： Masayuki Shinohara ,  Nobuhito Matsuyama ,  Takayuki Muranaka ,  Isao Kimura ,  Shinichi Akahane

IPC: H04M1/00 ,  H04L12/947 ,  H04L12/931 ,  H04L12/939

CPC classification number: H04L49/25 ,  H04L49/40 ,  H04L49/552

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09830403B2

公开(公告)日：2017-11-28

申请号：US14579132

申请日：2014-12-22

Applicant: ALAXALA Networks Corporation

Inventor： Shinichi Akahane ,  Kazuo Sugai ,  Tomohiko Kouno ,  Takao Nara

IPC: G06F11/00 ,  G06F17/30 ,  G11C15/00 ,  G11C29/56 ,  G11C29/04

CPC classification number: G06F17/30982 ,  G11C15/00 ,  G11C29/56008 ,  G11C2029/0401

Abstract: A communication apparatus comprises a CAM, an action determination unit, and a CAM diagnosis unit. The CAM includes, a plurality of entries each storing therein at least a portion of header information of frame, and a search circuit for each entry configured to determine whether or not a search key matches data stored at the entry. The search key is correlated with information indicating whether or not an entry matching the search key and an expected value of a search result including identification information of an entry matching the search key. The CAM diagnosis unit causes the CAM to search for an entry matching the search key. The CAM diagnosis unit diagnoses a failure occurring at the search circuit of an entry to be the test object when the result of the search does not match the expected value of a search result correlated to the search key.

公开(公告)号：US10389626B2

公开(公告)日：2019-08-20

申请号：US15912606

申请日：2018-03-06

Applicant: ALAXALA Networks Corporation

Inventor： Takeshi Kumagai ,  Kazuo Sugai ,  Shinichi Akahane ,  Takayuki Muranaka

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/743 ,  H04L12/749 ,  H04L12/745 ,  H04L12/773 ,  H04L12/801 ,  H04L12/935 ,  G06F11/00

Abstract: A transfer device transfers communication data, comprising: a search unit having a first search means that includes a first table and a first search circuit, the search unit referring to the first table using the first search circuit to search for the first transfer destination information from the first destination information; a search control unit that is a reconfigurable mechanism that creates search designation information and executes a first search designation information creation process of creating first search designation information; a control unit that controls the search unit and creates in the search unit at least a second search means including a second table and a second search circuit, the control unit controlling the search control unit to add to the search control unit a second search designation information creation process; and a transfer unit that receives the communication data and transmits the communication data to a transfer destination.

公开(公告)号：US20170104693A1

公开(公告)日：2017-04-13

申请号：US15383990

申请日：2016-12-19

Applicant: ALAXALA NETWORKS CORPORATION

Inventor： Masayuki Shinohara ,  Nobuhito Matsuyama ,  Takayuki Muranaka ,  Isao Kimura ,  Shinichi Akahane

IPC: H04L12/947 ,  H04L12/931 ,  H04L12/939

CPC classification number: H04L49/25 ,  H04L49/40 ,  H04L49/552

Abstract: 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.

公开(公告)号：US09935897B2

公开(公告)日：2018-04-03

申请号：US15383990

申请日：2016-12-19

Applicant: ALAXALA NETWORKS CORPORATION

Inventor： Masayuki Shinohara ,  Nobuhito Matsuyama ,  Takayuki Muranaka ,  Isao Kimura ,  Shinichi Akahane

IPC: H04M1/00 ,  H04L12/947 ,  H04L12/939 ,  H04L12/931

CPC classification number: H04L49/25 ,  H04L49/40 ,  H04L49/552

Abstract: 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.

公开(公告)号：US09276876B2

公开(公告)日：2016-03-01

申请号：US14096439

申请日：2013-12-04

Applicant: ALAXALA Networks Corporation

Inventor： Yasuhiro Kodama ,  Shinichi Akahane ,  Kazuo Sugai ,  Takao Nara

IPC: G06F15/167 ,  H04L12/933 ,  H04L12/741

CPC classification number: H04L49/10 ,  H04L45/745

Abstract: A data transfer apparatus includes a first memory, a second memory, a search unit, and a data transmitting/receiving unit. The first memory holds information that associates a search key with an address. The second memory holds information that associates the address with verification information which is generated by a predetermined generation method based on at least a portion of the search key. The search unit generates the search key based on the received data, obtains, from the first memory, the address that is associated with the generated search key, obtains, from the second memory, the verification information that is associated with the obtained address, and verifies the verification information that is generated by the predetermined generation method based on at least a portion of the generated search key with the verification information obtained from the second memory. The data transmitting/receiving unit executes processing based on a result of the verification.

Abstract translation: 数据传送装置包括第一存储器，第二存储器，搜索单元和数据发送/接收单元。 第一个存储器保存将搜索关键字与地址相关联的信息。 第二存储器保存将地址与基于搜索关键字的至少一部分的预定生成方法生成的验证信息相关联的信息。 搜索单元基于接收到的数据生成搜索关键字，从第一存储器获取与生成的搜索关键字相关联的地址，从第二存储器获得与获得的地址相关联的验证信息，以及 基于从第二存储器获得的验证信息，基于生成的搜索关键字的至少一部分来验证由预定生成方法生成的验证信息。 数据发送/接收单元基于验证结果执行处理。

公开(公告)号：US10887241B2

公开(公告)日：2021-01-05

申请号：US16267415

申请日：2019-02-05

Applicant: ALAXALA Networks Corporation

Inventor： Shinichi Akahane ,  Nobuhito Matsuyama ,  Mitsuru Nagasaka ,  Kazuo Sugai ,  Takayuki Muranaka

IPC: H04L12/851 ,  H04L12/46 ,  H04L12/823 ,  H04L12/841 ,  H04L12/801

Abstract: A communication device: stores flow condition information for identifying a flow and flow counter information that indicates, for each flow, an input flow volume of a flow inputted to the communication device, and an output flow volume of a flow outputted by the communication device; identifies a flow to which data inputted to the communication device belongs, with reference to the flow condition information; updates the input flow volume of the flow in the flow counter information; identifies a flow to which data outputted by the communication device belongs, with reference to the flow condition information; updates the output flow volume of the flow in the flow counter information; and identifies a flow in which a communication anomaly has occurred on the basis of results of a comparison process for comparing the input flow volume to the output flow volume with reference to the flow counter information.