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31. 发明授权

US07586947B2 Label switching type of packet forwarding apparatus 失效
标题翻译：标签交换类型的分组转发设备
公开(公告)号：US07586947B2
公开(公告)日：2009-09-08
申请号：US10894058
申请日：2004-07-20
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
IPC分类号： H04J3/22
CPC分类号： H04L49/3009 , H04L49/602
摘要： A label switching type packet forwarding apparatus having a routing information table in which a forwarding type of a reception packet, output port identification information, and output routing information of a specific layer in the OSI reference model determined by the forwarding type are defined in correspondence with routing information which is found upon reception of a packet, for converting a header of a reception packet in accordance with the packet forwarding type and the output routing information obtained by a table search.
摘要翻译：一种标签交换型分组转发装置，具有路由信息表，其中，由转发类型确定的OSI参考模型中的接收分组的转发类型，输出端口识别信息和特定层的输出路由信息被定义为与在接收到分组时发现的路由信息，用于根据分组转发类型转换接收分组的报头，以及通过表搜索获得的输出路由信息。

32. 发明申请

US20090034479A1 Network system, control method, and gateway 审中-公开
标题翻译：网络系统，控制方式和网关
公开(公告)号：US20090034479A1
公开(公告)日：2009-02-05
申请号：US12219258
申请日：2008-07-18
申请人： Koji Wakayama , Hirotake Wakai
发明人： Koji Wakayama , Hirotake Wakai
IPC分类号： H04Q7/00
CPC分类号： H04W36/02 , H04L45/16 , H04W36/0007 , H04W72/005
摘要： To prevent a packet loss during hand over, provided is a network system including: a gateway coupled with a wired network; and at least two base stations coupled with the gateway over the wired network and providing a wireless access method, in which the gateway is configured to: calculate, for each of the at least two base stations, a delay in information transmission between the gateway and each of the at least two base stations; choose a maximum delay from among the calculated delays of each of the at least two base stations; calculate, as a delay difference of each of the at least two base stations, a difference between the chosen maximum delay and the delay of each of the at least two base stations; and notify each of the at least two base stations of the calculated delay difference of each of the at least two base stations.
摘要翻译：为了防止在切换期间的分组丢失，提供了一种网络系统，包括：与有线网络耦合的网关; 以及至少两个基站，其经由所述有线网络与所述网关耦合并且提供无线接入方法，其中所述网关被配置为：针对所述至少两个基站中的每一个，计算所述网关与所述网关之间的信息传输的延迟所述至少两个基站中的每一个; 从所述至少两个基站中的每一个的所计算的延迟中选择最大延迟; 作为所述至少两个基站中的每一个的延迟差，计算所选择的最大延迟与所述至少两个基站中的每一个的所述延迟之间的差; 并且向所述至少两个基站中的每一个通知所述至少两个基站中的每一个的所计算的延迟差。

33. 发明授权

US07079544B2 Apparatus and method for interworking between MPLS network and non-MPLS network 有权
公开(公告)号：US07079544B2
公开(公告)日：2006-07-18
申请号：US09780413
申请日：2001-02-12
申请人： Koji Wakayama , Kenichi Sakamoto , Takeshi Aimoto , Takahisa Miyamoto
发明人： Koji Wakayama , Kenichi Sakamoto , Takeshi Aimoto , Takahisa Miyamoto
IPC分类号： H04L12/56
CPC分类号： H04L49/602 , H04L45/00 , H04L49/3009 , H04L49/354
摘要： In a device that interworks a VLAN network and an MPLS network, a VLAN ID is associated with an MPLS label. In a device that performs interworking from a VLAN network to an MPLS network, an output MPLS label is determined from a pair of a VLAN ID and the information in the layer 3 or layer 4 header of a packet. The output MPLS label is assigned an independent value for each VLAN. In a device that performs interworking from the MPLS network to another VLAN network, the input MPLS label is associated with a VLAN ID.

34. 发明申请

US20060034292A1 Apparatus and method for interworking between MPLS network and non-MPLS network 有权
公开(公告)号：US20060034292A1
公开(公告)日：2006-02-16
申请号：US11245332
申请日：2005-10-07
申请人： Koji Wakayama , Kenichi Sakamoto , Takeshi Aimoto , Takahisa Miyamoto
发明人： Koji Wakayama , Kenichi Sakamoto , Takeshi Aimoto , Takahisa Miyamoto
IPC分类号： H04L12/28
CPC分类号： H04L49/602 , H04L45/00 , H04L49/3009 , H04L49/354
摘要： In a device that interworks a VLAN network and an MPLS network, a VLAN ID is associated with an MPLS label. In a device that performs interworking from a VLAN network to an MPLS network, an output MPLS label is determined from a pair of a VLAN ID and the information in the layer 3 or layer 4 header of a packet. The output MPLS label is assigned an independent value for each VLAN. In a device that performs interworking from the MPLS network to another VLAN network, the input MPLS label is associated with a VLAN ID.

35. 发明申请

US20110268129A1 VPN COMPOSING METHOD, INTERWORK ROUTER, PACKET COMMUNICATION METHOD, DATA COMMUNICATION APPARATUS, AND PACKET RELAYING APPARATUS 失效
标题翻译： VPN组合方法，接口路由器，分组通信方法，数据通信设备和分组中继设备
公开(公告)号：US20110268129A1
公开(公告)日：2011-11-03
申请号：US13178906
申请日：2011-07-08
申请人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
发明人： Kenichi Sakamoto , Kazuyoshi Hoshino , Koji Wakayama , Shiro Tanabe , Noboru Endo
IPC分类号： H04L12/56
CPC分类号： H04L45/50 , H04L12/2856 , H04L12/2874 , H04L12/4633 , H04L12/4641
摘要： A data communication apparatus to be coupled to a first network and a Multiprotocol Label Switching (MPLS) network, includes a receiving unit which receives a data including header information indicating a destination and first header information used to identify a first Virtual Private Network (VPN) in the first network. The apparatus also includes a transmitter which transmits data having added thereto a MPLS header information used to identify one of the plurality of second VPNs in the MPLS network, the MPLS header information corresponding to both the header information indicating the destination and the first header information used to identify the first VPN in the first network included in the received data.
摘要翻译：一种要耦合到第一网络和多协议标签交换（MPLS）网络的数据通信设备，包括：接收单元，其接收包括用于标识第一虚拟专用网（VPN）的首标信息和用于标识第一虚拟专用网（VPN）在第一个网络。所述装置还包括发送器，其向所述MPLS网络中发送添加了用于标识所述多个第二VPN中的一个的MPLS标题信息的数据，所述MPLS标题信息对应于表示所述目的地的报头信息和所述第一报头信息识别包含在接收数据中的第一个网络中的第一个VPN。

36. 发明申请

US20090323694A1 LABEL SWITCHING TYPE OF PACKET FORWARDING APPARATUS 有权
标题翻译：标签切换类型的分组装置
公开(公告)号：US20090323694A1
公开(公告)日：2009-12-31
申请号：US12550945
申请日：2009-08-31
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
IPC分类号： H04L12/56
CPC分类号： H04L49/3009 , H04L49/602
摘要： A label switching type packet forwarding apparatus having a routing information table in which a forwarding type of a reception packet, output port identification information, and output routing information of a specific layer in the OSI reference model determined by the forwarding type are defined in correspondence with routing information which is found upon reception of a packet, for converting a header of a reception packet in accordance with the packet forwarding type and the output routing information obtained by a table search.
摘要翻译：一种标签交换型分组转发装置，具有路由信息表，其中，由转发类型确定的OSI参考模型中的接收分组的转发类型，输出端口识别信息和特定层的输出路由信息被定义为与在接收到分组时发现的路由信息，用于根据分组转发类型转换接收分组的报头，以及通过表搜索获得的输出路由信息。

37. 发明授权

US07518998B2 IP packet communication apparatus 失效
标题翻译： IP分组通信装置
公开(公告)号：US07518998B2
公开(公告)日：2009-04-14
申请号：US11115125
申请日：2005-04-27
申请人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
发明人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
IPC分类号： H04L12/24 , H04L12/26 , H04L1/22
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0241 , H04J14/0278 , H04J14/0283 , H04J14/029 , H04J14/0294 , H04J14/0297 , H04L43/00 , H04L43/0829 , H04L43/0847 , H04L43/10 , H04L43/16
摘要： In an IP packet communication apparatus, an operation and maintenance function capable of monitoring a transmission path is provided to a layer used to process a packet, which corresponds to an upper layer of an optical network. As one method for applying the operation and maintenance function to the packet layer, in the case of IP over PPP over WDM, an operation/maintenance frame is defined to a PPP frame so as to realize the operation/maintenance function of a PPP connection. In the case that a plurality of connections are multiplexed on the same transmission path, a maintenance frame is conducted in order to operate/manage these connections by being grouped, so that a fault occurring in the optical network is monitored. As another method for applying the operation and maintenance function to the packet layer, an operation/maintenance frame is defined to an IP packet so as to realize an operation and maintenance function of an IP flow. Also, since a plurality of flows are multiplexed on the same transmission path, a management packet is defined to operate/manage these flows to be grouped, so that a fault occurring the in the optical network is monitored.
摘要翻译：在IP分组通信装置中，向用于处理对应于光网络的上层的分组的层提供能够监视传输路径的操作和维护功能。作为对分组层应用操作和维护功能的一种方法，在通过WDM通过PPP的IP的情况下，将操作/维护帧定义为PPP帧，以实现PPP连接的操作/维护功能。在多个连接被复用在同一传输路径上的情况下，进行维护帧以通过分组来操作/管理这些连接，从而监视在光网络中发生的故障。作为对分组层应用操作和维护功能的另一种方法，将IP分组定义为操作/维护帧，以实现IP流的操作和维护功能。此外，由于多个流在同一传输路径上多路复用，所以管理分组被定义为对这些流进行分组操作/管理，从而监视在光网络中发生的故障。

38. 发明授权

US07173932B2 Packet switching apparatus 有权
标题翻译：分组交换设备
公开(公告)号：US07173932B2
公开(公告)日：2007-02-06
申请号：US09924768
申请日：2001-08-09
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama , Tetsuhiko Hirata , Hiroaki Miyata
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama , Tetsuhiko Hirata , Hiroaki Miyata
IPC分类号： H04L12/28
CPC分类号： H04W88/005 , H04L12/2856 , H04L12/2859 , H04L12/4633 , H04L45/54 , H04L69/16 , H04L69/168
摘要： An access node run as a packet switching apparatus enables IP connection services for a plurality of access methods; e.g., relatively low-speed IP connection, high-speed IP connection, and mobile network IP connection. By using this apparatus of the present invention, cost can be reduced and upgrading to advanced access networks and access services is easily carried out. Provision of the above access nodes implements upgrade-type network services common for diverse protocols. Each access node retains a pathfinding table to which input port, input tunnel identifier and input session identifier entries in a set are registered per session. When routing a packet, by looking up the set of these entries matching with the packet, the associated output port, output tunnel identifier, and output session identifier are obtained. After processing for the packet, appropriate for one of the plurality of access methods and network services, the node forwards the packet over the routed path.
摘要翻译：作为分组交换装置运行的接入节点能够实现多种接入方式的IP连接业务; 例如，相对低速的IP连接，高速IP连接和移动网络IP连接。通过使用本发明的装置，可以降低成本，容易地进行高级接入网和接入业务的升级。上述接入节点的配置实现了各种协议通用的升级型网络服务。每个访问节点保留路径寻找表，每个会话向其注册一个输入端口，输入隧道标识符和一组中的输入会话标识符条目。当路由数据包时，通过查找与数据包匹配的这些条目的集合，获得相关联的输出端口，输出隧道标识符和输出会话标识符。在针对分组的处理之后，适于多个接入方法和网络服务之一，节点通过路由路径转发分组。

39. 发明授权

US06907006B1 Method and apparatus for detecting faults in IP packet communication 失效
标题翻译：用于检测IP分组通信中的故障的方法和装置
公开(公告)号：US06907006B1
公开(公告)日：2005-06-14
申请号：US09259051
申请日：1999-03-01
申请人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
发明人： Kenichi Sakamoto , Noboru Endo , Toshiki Sugawara , Koji Wakayama , Kazuyoshi Hoshino
IPC分类号： H04L12/56 , H04J14/02 , H04L12/26 , H04L12/24 , H04L1/22
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0241 , H04J14/0278 , H04J14/0283 , H04J14/029 , H04J14/0294 , H04J14/0297 , H04L43/00 , H04L43/0829 , H04L43/0847 , H04L43/10 , H04L43/16
摘要： In an IP packet communication apparatus, an operation and maintenance function capable of monitoring a transmission path is provided to a layer used to process a packet, which corresponds to an upper layer of an optical network. As one method for applying the operation and maintenance function to the packet layer, in the case of IP over PPP over WDM, an operation/maintenance frame is defined to a PPP frame so as to realize the operation/maintenance function of a PPP connection. In the case that a plurality of connections are multiplexed on the same transmission path, a maintenance frame is conducted in order to operate/manage these connections by being grouped, so that a fault occurring in the optical network is monitored. As another method for applying the operation and maintenance function to the packet layer, an operation/maintenance frame is defined to an IP packet so as to realize an operation and maintenance function of an IP flow. Also, since a plurality of flows are multiplexed on the same transmission path, a management packet is defined to operate/manage these flows to be grouped, so that a fault occurring in the optical network is monitored.
摘要翻译：在IP分组通信装置中，向用于处理对应于光网络的上层的分组的层提供能够监视传输路径的操作和维护功能。作为对分组层应用操作和维护功能的一种方法，在通过WDM通过PPP的IP的情况下，将操作/维护帧定义为PPP帧，以实现PPP连接的操作/维护功能。在多个连接被复用在同一传输路径上的情况下，进行维护帧以通过分组来操作/管理这些连接，从而监视在光网络中发生的故障。作为对分组层应用操作和维护功能的另一种方法，将IP分组定义为操作/维护帧，以实现IP流的操作和维护功能。此外，由于多个流被复用在相同的传输路径上，所以定义管理分组来操作/管理要分组的流，从而监视在光网络中发生的故障。

40. 发明授权

US06771662B1 Label switching type of packet forwarding apparatus 有权
标题翻译：标签交换类型的分组转发设备
公开(公告)号：US06771662B1
公开(公告)日：2004-08-03
申请号：US09629706
申请日：2000-07-31
申请人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
发明人： Kazuho Miki , Kenichi Sakamoto , Koji Wakayama
IPC分类号： H04J316
CPC分类号： H04L49/3009 , H04L49/602
摘要： A label switching type packet forwarding apparatus having a routing information table in which a forwarding type of a reception packet, output port identification information, and output routing information of a specific layer in the OSI reference model determined by the forwarding type are defined in correspondence with routing information which is found upon reception of a packet, for converting a header of a reception packet in accordance with the packet forwarding type and the output routing information obtained by a table search.
摘要翻译：一种标签交换型分组转发装置，具有路由信息表，其中，由转发类型确定的OSI参考模型中的接收分组的转发类型，输出端口识别信息和特定层的输出路由信息被定义为与在接收到分组时发现的路由信息，用于根据分组转发类型转换接收分组的报头，以及通过表搜索获得的输出路由信息。

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