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21. 发明申请

US20130142226A1 SIGNAL TRANSMISSION SYSTEM, SIGNAL TRANSMISSION METHOD AND COMMUNICATION DEVICE 审中-公开
标题翻译：信号传输系统，信号传输方法和通信设备
公开(公告)号：US20130142226A1
公开(公告)日：2013-06-06
申请号：US13648614
申请日：2012-10-10
申请人： ALAXALA Networks Corporation
发明人： Toru Sasaki , Junji Baba , Naohisa Koie
IPC分类号： H04B1/38
CPC分类号： H04L25/0272 , H04L1/241
摘要： A signal transmission system comprises: a first circuit; a second circuit; a transmission line configured to transmit data from the first circuit to the second circuit by using a differential signal; a monitor configured to monitor an interval of transmission of the data; and a compensator configured to correct a transmission loss of the differential signal in the interval monitored by the monitor.
摘要翻译：信号传输系统包括：第一电路; 第二电路; 配置为通过使用差分信号将数据从第一电路传输到第二电路的传输线; 监视器，被配置为监视数据的传输间隔; 以及补偿器，被配置为校正由监视器监视的间隔中的差分信号的传输损耗。

22. 发明授权

US08437349B2 Multicast snooping on layer 2 virtual private network 有权
标题翻译：第2层虚拟专用网络上的组播侦听
公开(公告)号：US08437349B2
公开(公告)日：2013-05-07
申请号：US12628455
申请日：2009-12-01
申请人： Teruo Kaganoi , Naoya Kumita
发明人： Teruo Kaganoi , Naoya Kumita
IPC分类号： H04L12/56
CPC分类号： H04L12/185 , H04L12/462 , H04L12/4625 , H04L12/4633 , H04L12/4641
摘要： A network system includes: a core switch; and an edge switch. The edge switch includes: a join message identification unit; and a marking unit. The join message identification unit identifies a join message from among MAC frames from the user network. The marking unit marks mark information to a header of a MAC-in-MAC frame in which the identified join message is encapsulated. The core switch includes: a plurality of input/output ports; a mark identification unit; and a port setup unit. The mark identification unit identifies a MAC-in-MAC frame in which a header is marked with the mark information. The port setup unit associates a multicast group of a join message which is encapsulated in the identified MAC-in-MAC frame, with an input/output port to which the identified MAC-in-MAC frame is input.
摘要翻译：网络系统包括：核心交换机; 和边缘开关。边缘切换器包括：加入消息识别单元; 和标记单元。加入消息识别单元从用户网络识别来自MAC帧的加入消息。标记单元将标记信息标记到其中封装了所标识的加入消息的MAC-in-MAC帧的报头。核心交换机包括：多个输入/输出端口; 标记识别单元; 和端口设置单元。标记识别单元识别标题信息中标有标题的MAC-in-MAC帧。端口设置单元将封装在所识别的MAC-in-MAC帧中的加入消息的多播组与所输入的MAC-in-MAC帧的输入/输出端口相关联。

23. 发明授权

US08412843B2 Network relay apparatus 有权
公开(公告)号：US08412843B2
公开(公告)日：2013-04-02
申请号：US13005672
申请日：2011-01-13
申请人： Yoshihiro Nakao , Shinichi Akahane , Masayuki Shinohara , Atsushi Serizawa
发明人： Yoshihiro Nakao , Shinichi Akahane , Masayuki Shinohara , Atsushi Serizawa
IPC分类号： G06F15/16
CPC分类号： H04L12/10 , H04L45/00 , H04L45/586 , H04L47/10 , H04L47/125 , H04L49/1553
摘要： A network relay apparatus which conducts data transfer by using a plurality of network LSIs includes a transfer engine unit having at least two network LSIs and a central control unit which controls the operation state of the network relay apparatus. The transfer engine unit includes the network LSIs capable of changing over at least one of a clock and an operation which differ every function block, a load judgment unit for judging a load laid upon each of function blocks in the network LSI, and a frequency voltage control unit for individually changing over at least one of the clock and operation voltage supplied to each function block on the basis of the load judged by the load judgment unit.

24. 发明申请

US20130016617A1 NETWORK RELAY DEVICE AND CONTROL METHOD THEREOF 有权
标题翻译：网络继电器及其控制方法
公开(公告)号：US20130016617A1
公开(公告)日：2013-01-17
申请号：US13525729
申请日：2012-06-18
申请人： Koichi NISHIKAWA
发明人： Koichi NISHIKAWA
IPC分类号： H04L12/26
CPC分类号： H04L12/42 , H04L41/06 , H04L43/0811 , H04L43/0817
摘要： The network relay device is provided. The network relay device includes: a plurality of ports, each being configured to be connectable with one physical line; a virtual line controller configured to treat a plurality of physical lines, which are respectively connected with the plurality of ports, to constitute a virtual line; and a status check frame controller configured to send via the virtual line a status check frame for use in checking status of a network, which the network relay device is connected with via the virtual line, wherein the status check frame controller changes a frame-sending port to be used to send a next status check frame, in order to avoid continuously using an identical port as both a frame-sending port to send the status check frame and a frame-receiving port to receive the status check frame from another network relay device.
摘要翻译：提供网络中继设备。网络中继装置包括：多个端口，每个端口被配置为可与一条物理线路连接; 虚拟线路控制器，被配置为处理分别与所述多个端口连接的多条物理线路，以构成虚拟线路; 以及状态检查帧控制器，被配置为经由所述虚拟线路发送用于检查所述网络中继设备经由所述虚拟线路连接的网络的状态的状态检查帧，其中所述状态检查帧控制器改变帧发送端口用于发送下一个状态检查帧，以避免连续使用相同的端口作为帧发送端口发送状态检查帧和帧接收端口，以从另一个网络中继接收状态检查帧设备。

25. 发明授权

US08335934B2 Assessing conditions of power consumption in computer network 有权
标题翻译：评估计算机网络中的功耗条件
公开(公告)号：US08335934B2
公开(公告)日：2012-12-18
申请号：US12636182
申请日：2009-12-11
申请人： Yasuhiro Kodama , Mitsuru Nagasaka , Shinichi Akahane , Tomohiko Kouno , Teruo Kaganoi , Takeki Yazaki
发明人： Yasuhiro Kodama , Mitsuru Nagasaka , Shinichi Akahane , Tomohiko Kouno , Teruo Kaganoi , Takeki Yazaki
IPC分类号： G06F1/32
CPC分类号： G06F11/3062 , H04L43/045 , H04L43/062 , H04L43/065 , H04L43/08
摘要： A network system forms a computer network, and includes: a collecting unit; a calculating unit; and a display unit. The collecting unit collects power consumption information from a connecting device. The power consumption information shows power consumption of the connecting device. The calculating unit calculates power consumption of the computer network based on the collected power consumption information. The calculated power consumption is itemized into constituent units based on a configuration of the computer network. The display unit displays the calculated power consumption.
摘要翻译：网络系统形成计算机网络，包括：收集单元; 计算单位和显示单元。收集单元从连接装置收集功耗信息。功耗信息显示连接设备的功耗。计算单元基于收集的功耗信息来计算计算机网络的功耗。基于计算机网络的配置将计算出的功耗逐项分为组成单元。显示单元显示计算出的功耗。

26. 发明授权

US08325645B2 Network relay apparatus 有权
标题翻译：网络中继装置
公开(公告)号：US08325645B2
公开(公告)日：2012-12-04
申请号：US12834636
申请日：2010-07-12
申请人： Norio Shiroko , Tetsu Okubo , Shinji Nozaki
发明人： Norio Shiroko , Tetsu Okubo , Shinji Nozaki
IPC分类号： H04H20/71
CPC分类号： H04L12/185 , H04L45/16 , H04L45/745
摘要： Network relay apparatus includes: relay apparatus selector configured to, in response to reception of a join request for a preset multicast group from an external device connecting with the network, refer to information for identifying respective network relay apparatuses on a segment which the own network relay apparatus belongs to, and, at least one of information for identifying the preset multicast group and information for identifying a source, wherein the information for identifying the preset multicast group and the information for identifying a source are included in the received join request, and unequivocally select one network relay apparatus among at least part of the network relay apparatuses on the segment as a designated network relay apparatus according to a predetermined rule, wherein the designated network relay apparatus is assigned to relay a multicast packet to the external device; and a multicast route setter.
摘要翻译：网络中继装置包括：中继装置选择器，被配置为响应于从与网络连接的外部设备接收对预设组播组的加入请求，参考用于识别自身网络中继的段上的各个网络中继装置的信息以及用于识别预设多播组的信息和用于识别源的信息中的至少一个，其中用于识别预设多播组的信息和用于识别源的信息被包括在接收到的加入请求中，并且明确地根据预定规则，在所述段上的所述网络中继装置的至少一部分中选择一个网络中继装置作为指定的网络中继装置，其中，所述指定的网络中继装置被分配用于将组播分组中继到所述外部装置; 和组播路由设置器。

27. 发明授权

US08295160B2 Data communication system, device and method of detecting a failure on an access line in a network 有权
标题翻译：数据通信系统，检测网络中接入线路故障的方法
公开(公告)号：US08295160B2
公开(公告)日：2012-10-23
申请号：US11471656
申请日：2006-06-21
申请人： Manabu Fujita , Masaya Arai , Ken Watanabe , Kensuke Ino
发明人： Manabu Fujita , Masaya Arai , Ken Watanabe , Kensuke Ino
IPC分类号： G06F11/16
CPC分类号： H04L45/04 , H04L43/0811 , H04L45/02 , H04L45/22 , H04L45/28 , H04L45/502
摘要： When the provider edge PE1 detects the occurrence of a failure at the access line AL1, it sends the label withdraw message to the virtual circuit VC1, and when the provider edge PE2 receives the label withdraw message sent via the virtual circuit VC1, the access line AL2 is put to a link down state, and when the customer edge CE2 detects the link down state of the access line AL2, it switches from the normal path to the redundant path.
摘要翻译：当提供商边缘PE1检测到接入线路AL1发生故障时，它向虚拟电路VC1发送标签提取消息，当提供商边缘PE2接收到经由虚拟电路VC1发送的标签提取消息时，接入线路 AL2处于链路断开状态，当客户端CE2检测到接入线路AL2的链路断开状态时，它从正常路径切换到冗余路径。

28. 发明授权

US08254252B2 Bandwidth control apparatus 有权
标题翻译：带宽控制装置
公开(公告)号：US08254252B2
公开(公告)日：2012-08-28
申请号：US12625595
申请日：2009-11-25
申请人： Hideki Hinosugi , Atsushi Anzai , Takeshi Kumagai
发明人： Hideki Hinosugi , Atsushi Anzai , Takeshi Kumagai
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L47/20 , H04L47/2475 , H04L47/28 , H04L47/32
摘要： A bandwidth calculation section calculates a usable bandwidth from a communication amount of each user or a session connection time stored in a statistic management memory and minimum bandwidth information and maximum bandwidth information recorded in a bandwidth setting memory. The bandwidth calculation section allocates a large usable bandwidth to a user with a small communication amount or a short session connection time. A transmission control section performs transmission scheduling of packet information stored in a packet buffer based on a transmission scheduled time calculated from the usable bandwidth stored in a transmission scheduled time memory.
摘要翻译：带宽计算部分根据存储在统计管理存储器中的每个用户的通信量或会话连接时间来计算可用带宽，以及记录在带宽设置存储器中的最小带宽信息和最大带宽信息。带宽计算部分向具有小通信量或短会话连接时间的用户分配大的可用带宽。传输控制部分根据从发送调度时间存储器中存储的可用带宽计算的传输调度时间，对存储在分组缓冲器中的分组信息执行传输调度。

29. 发明申请

US20120084840A1 TERMINAL CONNECTION STATUS MANAGEMENT WITH NETWORK AUTHENTICATION 有权
标题翻译：终端连接状态管理与网络认证
公开(公告)号：US20120084840A1
公开(公告)日：2012-04-05
申请号：US13230199
申请日：2011-09-12
申请人： HIDEMITSU HIGUCHI , MOTOHIDE NOMI
发明人： HIDEMITSU HIGUCHI , MOTOHIDE NOMI
IPC分类号： G06F17/30 , G06F15/173
CPC分类号： H04L63/08 , H04L49/354 , H04L61/2015
摘要： A network relay device includes a communication unit, an authentication processing unit, a DHCP snooping processing unit, and a terminal search processing unit. The authentication processing unit creates first information specifying an authenticated terminal device according to web authentication, and manages whether relay of communication data between a terminal device and a node on the specified network is permissible based on the first information. The DHCP snooping processing unit executes snooping of DHCP communication data between a terminal device and a DHCP server, and creates second information specifying a layer 3 address allocated to each terminal device. The terminal search processing unit specifies an authenticated terminal device based on the first information, specifies a layer 3 address allocated to the specified authenticated terminal device based on the second information, and causes the communication unit to send, to the specified layer 3 address, confirmation communication data.
摘要翻译：网络中继设备包括通信单元，认证处理单元，DHCP监听处理单元和终端搜索处理单元。认证处理单元根据web认证创建指定认证终端装置的第一信息，并且基于第一信息来管理终端装置与指定网络上的节点之间的通信数据的中继是否被允许。 DHCP Snooping处理单元对终端设备和DHCP服务器之间的DHCP通信数据进行侦听，并创建第二条信息，指定分配给每个终端设备的第3层地址。终端搜索处理单元基于第一信息指定认证终端设备，基于第二信息指定分配给指定的认证终端设备的层3地址，并使通信单元向指定的层3地址发送确认通讯资料

30. 发明授权

US08081637B2 Network apparatus and method for forwarding packet 有权
标题翻译：用于转发数据包的网络设备和方法
公开(公告)号：US08081637B2
公开(公告)日：2011-12-20
申请号：US12717371
申请日：2010-03-04
申请人： Masaya Arai , Manabu Fujita
发明人： Masaya Arai , Manabu Fujita
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/2856 , H04L12/2898 , H04L12/4641 , H04L45/245 , H04L45/502 , Y02D50/30
摘要： When a network apparatus of this invention receives an IEEE 802.3ad link application control packet from a subscriber line with a VPWS function, it processes the packet in a control unit without relaying the packet by VPWS. More specifically, the network apparatus receives an IEEE802.3ad link aggregation control packet along with receiving an IEEE802.3x flow control packet. The network apparatus transmits a link aggregation control packet. The network apparatus also relays other layer 2 control protocol packets without receiving them, and does not transmit the other layer 2 control protocol packets.
摘要翻译：当本发明的网络装置从具有VPWS功能的用户线路接收到IEEE 802.3ad链路应用控制分组时，处理控制单元中的分组，而不用VPWS中继分组。更具体地，网络装置接收IEEE802.3ad链路聚合控制分组以及接收IEEE802.3x流量控制分组。网络装置发送链路聚合控制分组。网络设备也不接收其他层2控制协议报文，不发送其他层2控制协议报文。

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