公开(公告)号：US20200036645A1

公开(公告)日：2020-01-30

申请号：US16504412

申请日：2019-07-08

Applicant: ALAXALA Networks Corporation

Inventor： Koyuru NAGAO ,  Kazuo SUGAI ,  Takumi NAKAKI ,  Takayuki MURANAKA ,  Takeshi GOTOU

IPC: H04L12/873 ,  H04L12/863 ,  H04L12/26 ,  H04L12/825 ,  H04L29/12

Abstract: A communication system, comprising: a communication apparatus controlling transmission and reception of data in a network connecting a server and a user terminal; and a management apparatus, the network including an edge apparatus, the communication apparatus including a relay unit which has a queue for each communication flow, and controls the transmission and reception of data using the queue, the management apparatus including a monitoring unit which identifies a communication flow where data loss has occurred, calculates modifications for settings for communication control used for a queue corresponding to the identified communication flow, and transmits to the communication apparatus a modification command including the modifications, and the relay unit modifies settings for communication control using the queue corresponding to the identified communication flow on the basis of the modifications included in the modification command.

公开(公告)号：US10397111B2

公开(公告)日：2019-08-27

申请号：US15846531

申请日：2017-12-19

Applicant: ALAXALA Networks Corporation

Inventor： Keigo Uchizumi

IPC: H04L12/741 ,  H04L29/12

Abstract: A packet relay device automatically generates a whitelist including an authorized communication rule. The packet relay device snoops on communications between a DHCP server and a DHCP client in accordance with DHCP. When the IP address of a DHCP client is changed, the packet relay device also automatically changes IP address information included in a whitelist related to the DHCP client to IP address information newly allocated to the DHCP client.

公开(公告)号：US10003968B2

公开(公告)日：2018-06-19

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.

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：US20170353478A1

公开(公告)日：2017-12-07

申请号：US15591189

申请日：2017-05-10

Applicant: ALAXALA Networks Corporation

Inventor： Yuichi ISHIKAWA ,  Nobuhito MATSUYAMA

IPC: H04L29/06 ,  H04L12/931 ,  H04L12/46

Abstract: A packet relay apparatus, which is configured to transmit from a mirror port a mirror packet copied from one of a packet to be received and a packet to be transmitted, the packet relay apparatus comprising: a packet receiving module configured to receive a packet from an input port; a security judgment module configured to judge whether or not the packet is possibly one of an attack and an attack sign; a mirror processing module configured to generate, when it is judged that the packet is possibly one of an attack and an attack sign, a replica of the packet as the mirror packet; and a transmitting module configured to transmit the mirror packet from the mirror port.

公开(公告)号：US20170339055A1

公开(公告)日：2017-11-23

申请号：US15495060

申请日：2017-04-24

Applicant: ALAXALA Networks Corporation

Inventor： Yasunori YAMAMOTO ,  Motohide NOUMI ,  Kohei OKA

IPC: H04L12/715 ,  H04L12/805 ,  H04L12/46

CPC classification number: H04L45/64 ,  H04L12/4633 ,  H04L47/36

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.

公开(公告)号：US09667548B2

公开(公告)日：2017-05-30

申请号：US14535782

申请日：2014-11-07

Applicant: ALAXALA Networks Corporation

Inventor： Yuichi Ishikawa ,  Kentarou Sugawara ,  Takeshi Kumagai ,  Naoya Kumita

IPC: H04L1/00 ,  H04L12/801 ,  H04L12/741

CPC classification number: H04L47/12 ,  H04L45/74

Abstract: It is provided a relay apparatus, comprising: a plurality of ports coupled to a network; a Layer 2 processing module for relaying, via the network, a frame comprising a Layer 2 header and a Layer 2 data segment, the Layer 2 data segment comprising a Layer 3 header and a Layer 3 data segment; and an output unit, wherein the module updates a value of a particular field of the Layer 3 header, uses a first characteristic value related to the Layer 3 header, which is stored in a given field, and a pre-update value and post-update value of the particular field to compute a second characteristic value related to the Layer 3 header, and updates the value of the given field from the first characteristic value to the second characteristic value, and wherein the output unit outputs the updated frame as an output destination of the updated frame.

公开(公告)号：US09602304B2

公开(公告)日：2017-03-21

申请号：US14592488

申请日：2015-01-08

Applicant: ALAXALA Networks Corporation

Inventor： Shigeo Mochida ,  Yoshihisa Tanaka

IPC: H04L12/28 ,  H04L12/437 ,  H04L12/427 ,  H04L12/24 ,  H04L12/933 ,  H04L12/939 ,  H04L12/703

CPC classification number: H04L12/437 ,  H04L12/427 ,  H04L41/0668 ,  H04L45/28 ,  H04L49/102 ,  H04L49/557

Abstract: To improve fault tolerance of a ring network, provided is a data transfer device system belonging to a ring network system. The data transfer device system includes a plurality of data transfer devices; the plurality of data transfer devices including a first data transfer device and a second data transfer device connected with the first data transfer device; the first data transfer device having a first ring port; and the second data transfer device having a second ring port. The first data transfer device controls whether to permit the first ring port and the second ring port to transfer data based on a state of the network system, an attribute of the first data transfer device in the data transfer device system, and an attribute of the data transfer device system in the network system.

公开(公告)号：US20170041253A1

公开(公告)日：2017-02-09

申请号：US15220435

申请日：2016-07-27

Applicant: ALAXALA Networks Corporation

Inventor： Kouichi NISHIKAWA

IPC: H04L12/861

CPC classification number: H04L49/9031 ,  H04L47/29 ,  H04L49/1523 ,  H04L49/252 ,  H04L49/9047 ,  H04L49/9089

Abstract: A packet communication apparatus is configured to relay packets transmitted and received between information processing apparatuses. The packet communication apparatus includes: a network interface connectable to a network; a CPU to be a destination of at least one of a plurality of packets to be received through the network interface; a first buffer configured to hold the packets destined to the CPU in order to output the packets to the CPU; a second buffer having a plurality of planes and configured to hold copies of the packets destined to the CPU held in the first buffer in one of the plurality of planes; and a reception history controller configured to store a copy of a packet to a specified plane of the second buffer or to save copies of packets held in the second buffer to another storage area based on usage of the first buffer.

Abstract translation: 分组通信装置被配置为中继在信息处理装置之间发送和接收的分组。 分组通信装置包括：可连接到网络的网络接口; CPU作为要通过网络接口接收的多个分组中的至少一个的目的地; 第一缓冲器，配置为保存目的地为CPU的分组，以将分组输出到CPU; 第二缓冲器，具有多个平面，并且被配置为将保留在所述第一缓冲器中的所述CPU的分组的副本保存在所述多个平面中的一个平面中; 以及接收历史控制器，被配置为将分组的副本存储到第二缓冲器的指定平面，或者基于第一缓冲器的使用将保存在第二缓冲器中的分组的副本保存到另一存储区域。

公开(公告)号：US20160261427A1

公开(公告)日：2016-09-08

申请号：US15156491

申请日：2016-05-17

Applicant: ALAXALA NETWORKS CORPORATION

Inventor： Hiroto Sakurai

IPC: H04L12/437 ,  H04L12/26 ,  H04L25/20

CPC classification number: H04L12/437 ,  H04L25/20 ,  H04L43/0805 ,  H04L43/0823 ,  H04L43/0876 ,  H04L43/10 ,  H04L49/30

Abstract: A first communication apparatus to be coupled to a second communication apparatus and a third communication apparatus via a ring network, including: a first port to coupled to the ring network; and a second port to coupled to the ring network; wherein the first port and the second port is set to receive a control frame from the second communication apparatus and the third communication apparatus, and either the first port or the second port is set to be disabled to relay a user frame.