公开(公告)号：US08670444B2

公开(公告)日：2014-03-11

申请号：US13116406

申请日：2011-05-26

Applicant: Masao Kizawa ,  Masaya Arai ,  Shinji Nozaki

Inventor： Masao Kizawa ,  Masaya Arai ,  Shinji Nozaki

IPC: H04L12/66

CPC classification number: H04L49/552 ,  H04L45/586 ,  H04L49/3009

Abstract: In a virtual network apparatus, even when a fault occurs on a private line connecting plural physical network apparatuses to communicate a control signal, the redundancy is maintained, and the lower forwarding capability is prevented. In this network system, a control signal for virtualization to be transmitted and received between plural physical network apparatuses is relayed via a unit spanning LA connecting each physical network apparatus and an adjacent network apparatus in the adjacent network apparatus. Thereby, even when a fault occurs in the private line, it is possible to continue to communicate the control signal between the physical network apparatuses and continuously operate the virtual network apparatus.

Abstract translation: 在虚拟网络装置中，即使在连接多个物理网络装置的专用线上发生故障来通信控制信号的情况下，也能够维持冗余，能够防止较低的转发能力。 在该网络系统中，在多个物理网络装置之间发送和接收用于虚拟化的控制信号经由连接每个物理网络装置的单元和相邻网络装置中的相邻网络装置进行中继。 因此，即使专用线路发生故障，也可以继续在物理网络装置之间通信控制信号，并连续运行虚拟网络装置。

公开(公告)号：US08379649B2

公开(公告)日：2013-02-19

申请号：US12493360

申请日：2009-06-29

Applicant: Keiichirou Yamate ,  Shinji Nozaki ,  Masaya Arai

Inventor： Keiichirou Yamate ,  Shinji Nozaki ,  Masaya Arai

IPC: H04L12/28

CPC classification number: H04L45/00 ,  H04L45/54 ,  H04L45/66

Abstract: An extranet direct route allowing extranet forwarding to a directly linked device is written in a layer 2-layer 3-integrated forwarding table. The procedure of introducing a layer 3 address-to-layer 2 address correspondence relation table entry into the layer 2-layer 3-integrated forwarding table searches the layer 2-layer 3-integrated forwarding table with a layer 3 address of the correspondence relation table entry and a layer 3 interface as search keys to retrieve any forwarding entry relating to an extranet direct route as a forwarding destination. The procedure subsequently extracts a VRF of each retrieved forwarding entry and introduces the correspondence relation table entry for the extracted VRF into the layer 2-layer 3-integrated forwarding table.

Abstract translation: 外部网直接路由允许外部网转发到直连链路的设备被写入第2层3集成转发表。 将第3层地址对地址对应关系表项引入到第2层3集成转发表中的过程，在第2层3综合转发表中搜索对应关系表的第3层地址 条目和第3层接口作为搜索键，以检索与外部网直接路由相关的任何转发条目作为转发目的地。 该过程随后提取每个检索到的转发条目的VRF，并将提取的VRF的对应关系表条目引入到第2层3综合转发表中。

公开(公告)号：US20120051364A1

公开(公告)日：2012-03-01

申请号：US13198237

申请日：2011-08-04

Applicant: MANABU FUJITA ,  Masaya Arai ,  Shinji Nozaki ,  Akihiko Akitaya ,  Kensuke Ino

Inventor： MANABU FUJITA ,  Masaya Arai ,  Shinji Nozaki ,  Akihiko Akitaya ,  Kensuke Ino

IPC: H04L12/56

CPC classification number: H04L45/00 ,  H04L45/04 ,  H04L45/245 ,  H04L45/66

Abstract: A network relay system includes a plurality of internal network relay devices. The network relay system learns multiple pieces of route information to an external network, creates a plurality of allocation route tables designed to allocate the learnt multiple pieces of route information to the internal network relay devices. The network relay system then generates address space information showing a correlation of IP address ranges on an IP address space between the allocation route tables and respectively registers the allocation route tables, along with the generated address space information, in the internal network relay devices. Each of the internal network relay devices transfers a data frame, based on the address space information and the allocation route table registered in the self-device.

Abstract translation: 网络中继系统包括多个内部网络中继设备。 网络中继系统向外部网络学习多条路由信息，创建多条分配路由表，用于将学习到的多条路由信息分配给内部网络中继设备。 然后，网络中继系统生成表示分配路由表之间的IP地址空间上的IP地址范围的相关性的地址空间信息，并且在内部网络中继设备中分别登记分配路由表以及生成的地址空间信息。 每个内部网络中继设备基于登记在自身设备中的地址空间信息和分配路由表传送数据帧。

公开(公告)号：US20100158014A1

公开(公告)日：2010-06-24

申请号：US12717371

申请日：2010-03-04

Applicant: Masaya Arai ,  Manabu Fujita

Inventor： Masaya Arai ,  Manabu Fujita

IPC: H04L12/56

CPC classification number: H04L12/2856 ,  H04L12/2898 ,  H04L12/4641 ,  H04L45/245 ,  H04L45/502 ,  Y02D50/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08854949B2

公开(公告)日：2014-10-07

申请号：US13399296

申请日：2012-02-17

Applicant: Masaya Arai

Inventor： Masaya Arai

IPC: H04L12/26 ,  H04L12/46 ,  H04L12/18 ,  H04L12/437 ,  H04L12/703 ,  H04L12/761

CPC classification number: H04L12/185 ,  H04L12/437 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/28

Abstract: A network relay device relays data in a layer 2 network. The network relay device includes first and second communication ports, a snooping module, a transfer information storage unit, a multicast sending module, a failure detector and a port adding module. The snooping module generates snooping information. The snooping information correlates the first communication port set to a multicast transfer port to a destination MAC address. The multicast sending module refers to the snooping information stored in the transfer information storage unit and sends a multicast frame received from the layer 2 network, from the correlated multicast transfer port. The failure detector detects a communication failure in the layer 2 network. The port adding module additionally, in response to detection of the communication failure by the failure detector, set the second communication port, in addition to the first communication port, to the multicast transfer port.

Abstract translation: 网络中继设备中继二层网络中的数据。 网络中继装置包括第一和第二通信端口，侦听模块，传输信息存储单元，组播发送模块，故障检测器和端口添加模块。 snooping模块生成窥探信息。 侦听信息将第一通信端口设置为组播传输端口与目的MAC地址相关联。 组播发送模块参考存储在传输信息存储单元中的监听信息，并从相关组播转发端口发送从第2层网络接收到的组播帧。 故障检测器检测第2层网络中的通信故障。 端口添加模块另外，响应于由故障检测器检测到通信故障，除了第一通信端口之外，将第二通信端口设置到多播传送端口。

公开(公告)号：US20120236863A1

公开(公告)日：2012-09-20

申请号：US13482006

申请日：2012-05-29

Applicant: Masaya ARAI ,  Manabu FUJITA ,  Ken WATANABE ,  Kensuke INO

Inventor： Masaya ARAI ,  Manabu FUJITA ,  Ken WATANABE ,  Kensuke INO

IPC: H04L12/56

CPC classification number: H04L45/22 ,  H04L45/28 ,  H04L49/354 ,  H04L49/552

Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the first edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

Abstract translation: 提供商边缘PE3复制接收到的分组，并将它们中继到虚拟电路VC1，VC2，并且提供商边缘PE2，PE2分别接收来自虚拟电路VC1，VC2的分组，由此提供者边缘PE2，PE2基于 它们之间的协议决定处理接收到的数据包，使得第一个边缘之一将数据包中继到客户端CE1以转发到主机A，而另一个边缘丢弃数据包而不将其转发到客户端CE1。

公开(公告)号：US08208464B2

公开(公告)日：2012-06-26

申请号：US12623583

申请日：2009-11-23

Applicant: Masaya Arai ,  Manabu Fujita ,  Ken Watanabe ,  Kensuke Ino

Inventor： Masaya Arai ,  Manabu Fujita ,  Ken Watanabe ,  Kensuke Ino

IPC: H04L12/56 ,  H04J1/16

CPC classification number: H04L45/22 ,  H04L45/28 ,  H04L49/354 ,  H04L49/552

Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the first edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

Abstract translation: 提供商边缘PE3复制接收到的分组，并将它们中继到虚拟电路VC1，VC2，并且提供商边缘PE2，PE2分别接收来自虚拟电路VC1，VC2的分组，由此提供者边缘PE2，PE2基于 它们之间的协议决定处理接收到的数据包，使得第一个边缘之一将数据包中继到客户端CE1以转发到主机A，而另一个边缘丢弃数据包而不将其转发到客户端CE1。

公开(公告)号：US20110032939A1

公开(公告)日：2011-02-10

申请号：US12835261

申请日：2010-07-13

Applicant: Shinji NOZAKI ,  Masaya ARAI

Inventor： Shinji NOZAKI ,  Masaya ARAI

IPC: H04L12/56 ,  H04L29/06

CPC classification number: H04L67/2814 ,  H04L45/54 ,  H04L45/72 ,  H04L63/08 ,  H04L63/164

Abstract: A network system includes: a first network; an authentication server; a second network; a network; and a packet forwarding apparatus, wherein the packet forwarding apparatus includes: a forwarding route table storage storing a first forwarding route table containing packet routing information to the second network, and a second forwarding route table containing packet routing information to the second network and the third network; and a forwarding route table selector that, prior to determination of successful authentication for the terminal apparatus, selects the first forwarding route table as a search forwarding route table, and that upon receipt of determination of successful authentication for the terminal apparatus, selects the second forwarding route table as the search forwarding route table.

Abstract translation: 网络系统包括：第一网络; 认证服务器; 第二个网络 一个网络; 以及分组转发装置，其中，所述分组转发装置包括：转发路由表存储部，其将包含分组路由信息的第一转发路由表存储到所述第二网络;以及第二转发路由表，所述第二转发路由表包含到所述第二网络的分组路由信息， 网络; 以及转发路由表选择器，其在确定所述终端装置的成功认证之前，选择所述第一转发路由表作为搜索转发路由表，并且在接收到所述终端装置的成功认证的确定后，选择所述第二转发 路由表作为搜索转发路由表。

公开(公告)号：US20100080235A1

公开(公告)日：2010-04-01

申请号：US12493360

申请日：2009-06-29

Applicant: Keiichirou Yamate ,  Shinji Nozaki ,  Masaya Arai

Inventor： Keiichirou Yamate ,  Shinji Nozaki ,  Masaya Arai

IPC: H04L12/56

CPC classification number: H04L45/00 ,  H04L45/54 ,  H04L45/66

Abstract: An extranet direct route allowing extranet forwarding to a directly linked device is written in a layer 2-layer 3-integrated forwarding table. The procedure of introducing a layer 3 address-to-layer 2 address correspondence relation table entry into the layer 2-layer 3-integrated forwarding table searches the layer 2-layer 3-integrated forwarding table with a layer 3 address of the correspondence relation table entry and a layer 3 interface as search keys to retrieve any forwarding entry relating to an extranet direct route as a forwarding destination. The procedure subsequently extracts a VRF of each retrieved forwarding entry and introduces the correspondence relation table entry for the extracted VRF into the layer 2-layer 3-integrated forwarding table.

Abstract translation: 外部网直接路由允许外部网转发到直连链路的设备被写入第2层3集成转发表。 将第3层地址对地址对应关系表项引入到第2层3集成转发表中的过程，在第2层3综合转发表中搜索对应关系表的第3层地址 条目和第3层接口作为搜索键，以检索与外部网直接路由相关的任何转发条目作为转发目的地。 该过程随后提取每个检索到的转发条目的VRF，并将提取的VRF的对应关系表条目引入到第2层3综合转发表中。

公开(公告)号：US20100067530A1

公开(公告)日：2010-03-18

申请号：US12623583

申请日：2009-11-23

Applicant: Masaya ARAI ,  Manabu Fujita ,  Ken Watanabe ,  Kensuke Ino

Inventor： Masaya ARAI ,  Manabu Fujita ,  Ken Watanabe ,  Kensuke Ino

IPC: H04L12/56

CPC classification number: H04L45/22 ,  H04L45/28 ,  H04L49/354 ,  H04L49/552

Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the first edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

Abstract translation: 提供商边缘PE3复制接收到的分组，并将它们中继到虚拟电路VC1，VC2，提供者边缘PE2，PE2分别接收来自虚拟电路VC1，VC2的分组，由此提供者边缘PE2，PE2基于 它们之间的协议决定处理接收到的数据包，使得第一个边缘之一将数据包中继到客户端CE1以转发到主机A，而另一个边缘丢弃数据包而不将其转发到客户端CE1。