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1. 发明授权

US07477648B2 Packet forwarding apparatus and access network system 有权
标题翻译：分组转发装置和接入网系统
公开(公告)号：US07477648B2
公开(公告)日：2009-01-13
申请号：US11037114
申请日：2005-01-19
申请人： Migaku Ota , Hiroaki Miyata , Kengo Ijima , Koji Ikeda , Daiki Nozue
发明人： Migaku Ota , Hiroaki Miyata , Kengo Ijima , Koji Ikeda , Daiki Nozue
IPC分类号： H04L12/28
CPC分类号： H04L61/2007 , H04L12/2856 , H04L12/2872 , H04L29/12216 , H04L29/12283 , H04L61/2061 , H04L63/083
摘要： An access network system connected to an ISP network including a subscriber authentication server comprised of a plurality of packet forwarding apparatuses each for connecting user terminals to an Internet network via the ISP network and an address pool management server having an address pool management table for holding, as a sub-address pool, a plurality of IP addresses usable over the ISP network. Each of the packet forwarding apparatuses acquires from the address pool management server an IP address to be allocated to the user terminal having requested connection to the Internet when the subscriber authentication server has succeeded in authentication of the user terminal.
摘要翻译：连接到ISP网络的接入网络系统，包括由多个分组转发装置构成的用户认证服务器，各个用于通过ISP网络将用户终端连接到因特网的分组转发装置和具有用于保持的地址池管理表的地址池管理服务器，作为子地址池，可以通过ISP网络使用多个IP地址。当用户认证服务器成功地认证用户终端时，每个分组转发装置从地址池管理服务器获取要分配给具有请求到因特网的连接的用户终端的IP地址。

2. 发明申请

US20060062228A1 Packet forwarding apparatus and access network system 有权
公开(公告)号：US20060062228A1
公开(公告)日：2006-03-23
申请号：US11037114
申请日：2005-01-19
申请人： Migaku Ota , Hiroaki Miyata , Kengo Ijima , Koji Ikeda , Daiki Nozue
发明人： Migaku Ota , Hiroaki Miyata , Kengo Ijima , Koji Ikeda , Daiki Nozue
IPC分类号： H04L12/56
CPC分类号： H04L61/2007 , H04L12/2856 , H04L12/2872 , H04L29/12216 , H04L29/12283 , H04L61/2061 , H04L63/083
摘要： An access network system connected to an ISP network including a subscriber authentication server comprised of a plurality of packet forwarding apparatuses each for connecting user terminals to an Internet network via the ISP network and an address pool management server having an address pool management table for holding, as a sub-address pool, a plurality of IP addresses usable over the ISP network. Each of the packet forwarding apparatuses acquires from the address pool management server an IP address to be allocated to the user terminal having requested connection to the Internet when the subscriber authentication server has succeeded in authentication of the user terminal.

3. 发明申请

US20060072572A1 Layer 2 switch 有权
标题翻译：二层交换机
公开(公告)号：US20060072572A1
公开(公告)日：2006-04-06
申请号：US11178512
申请日：2005-07-12
申请人： Koji Ikeda , Hiroaki Miyata , Migaku Ota
发明人： Koji Ikeda , Hiroaki Miyata , Migaku Ota
IPC分类号： H04L12/56
CPC分类号： H04L12/18
摘要： A Layer 2 switch manages distribution destinations of a multicast packet and distributes a copy of the multicast packet, so that the bandwidth wasted in a network is reduced. The Layer 2 switch is disposed between a user terminal and a packet transfer apparatus, which are connected by P2P, has a function to manage connected multicast users, receives a multicast packet on behalf of the users, and distributes a copy, to reduce the bandwidth wasted between the Layer 2 switch and the packet transfer apparatus.
摘要翻译：二层交换机管理组播报文的分发目的地，分发组播报文副本，减少网络浪费的带宽。第二层交换机设置在通过P2P连接的用户终端和分组传送装置之间，具有管理连接的组播用户的功能，代表用户接收组播分组，分发副本，减少带宽在第2层交换机和分组传送装置之间浪费。

4. 发明授权

US07417990B2 Layer 2 switch 有权
标题翻译：二层交换机
公开(公告)号：US07417990B2
公开(公告)日：2008-08-26
申请号：US11178512
申请日：2005-07-12
申请人： Koji Ikeda , Hiroaki Miyata , Migaku Ota
发明人： Koji Ikeda , Hiroaki Miyata , Migaku Ota
IPC分类号： H04L12/28
CPC分类号： H04L12/18
摘要： A Layer 2 switch manages distribution destinations of a multicast packet and distributes a copy of the multicast packet, so that the bandwidth wasted in a network is reduced. The Layer 2 switch is disposed between a user terminal and a packet transfer apparatus, which are connected by P2P, has a function to manage connected multicast users, receives a multicast packet on behalf of the users, and distributes a copy, to reduce the bandwidth wasted between the Layer 2 switch and the packet transfer apparatus.
摘要翻译：二层交换机管理组播报文的分发目的地，分发组播报文副本，减少网络浪费的带宽。第二层交换机设置在通过P2P连接的用户终端和分组传送装置之间，具有管理连接的组播用户的功能，代表用户接收组播分组，分发副本，减少带宽在第2层交换机和分组传送装置之间浪费。

5. 发明申请

US20070171918A1 Frame forwarding apparatus for converting VLAN identifiers 失效
标题翻译：用于转换VLAN标识符的帧转发设备
公开(公告)号：US20070171918A1
公开(公告)日：2007-07-26
申请号：US11482100
申请日：2006-07-07
申请人： Migaku Ota , Hiroaki Miyata , Masahiro Kimura , Jun Nakajima
发明人： Migaku Ota , Hiroaki Miyata , Masahiro Kimura , Jun Nakajima
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L12/4645 , H04L12/2856 , H04L12/2861 , H04L12/2885 , H04L45/04 , H04L45/54
摘要： A frame forwarding apparatus connected between an ISP router and a plurality of subscriber terminals comprises a frame forwarding processing unit and a VLAN bundling table defining the correspondence of subscriber side line information with ISP router side line information and subscriber terminal's MAC address. The subscriber side line information includes a physical line number and a subscriber VLAN identifier, and the ISP router side line information includes a physical line number connected to the ISP router and a group VLAN identifier. By referring to the VLAN bundling table, the frame forwarding processing unit operates to convert a VLAN identifier given in a frame received from a subscriber terminal into a group VLAN identifier and to convert a VLAN identifier given in a frame received from the ISP router into a subscriber VLAN identifier, before forwarding the frame to its destination.
摘要翻译：连接在ISP路由器和多个用户终端之间的帧转发装置包括帧转发处理单元和定义用户侧线信息与ISP路由器侧线信息和用户终端的MAC地址的对应关系的VLAN绑定表。用户侧线信息包括物理线路号和用户VLAN标识符，ISP路由器侧线信息包括连接到ISP路由器的物理线路号和组VLAN标识符。通过参考VLAN捆绑表，帧转发处理单元将从用户终端接收到的帧中给出的VLAN标识转换为组VLAN标识符，并将从ISP路由器接收到的帧中给出的VLAN标识转换为用户VLAN标识符，然后将帧转发到目的地。

6. 发明申请

US20060274744A1 Dynamic VLAN ID assignment and packet transfer apparatus 失效
公开(公告)号：US20060274744A1
公开(公告)日：2006-12-07
申请号：US11391417
申请日：2006-03-29
申请人： Minoru Nagai , Hiroaki Miyata , Migaku Ota
发明人： Minoru Nagai , Hiroaki Miyata , Migaku Ota
IPC分类号： H04L12/56
CPC分类号： H04L12/4645 , H04L12/467
摘要： Any or unique VLAN ID is dynamically assigned to a user terminal connected to a network, and communication by the assigned VLAN ID is enabled. A connection request from a user terminal is directed to L2GWs by a tagged VLAN frame having a common VLAN ID on the network. The L2GWs determine whether the connection request can be met, obtain a VLAN ID that can be assigned to the user terminal from a VLAN ID management server, configure themselves to communicate by the assigned VLAN ID, and report the VLAN ID to the user terminal. The user terminal performs subsequent communication by the reported VLAN ID. L2SWs monitor communication between the user terminal and the L2GWs and configure themselves to allow communication between the user terminal and the L2GWs by the VLAN ID assigned to the user terminal.

7. 发明授权

US07388877B2 Packet transfer apparatus 失效
标题翻译：分组传送装置
公开(公告)号：US07388877B2
公开(公告)日：2008-06-17
申请号：US10898430
申请日：2004-07-26
申请人： Migaku Ota , Hiroaki Miyata , Jun Nakajima
发明人： Migaku Ota , Hiroaki Miyata , Jun Nakajima
IPC分类号： H04J3/26 , H04L12/56 , H04L12/66
CPC分类号： H04L12/4633
摘要： An LAC manages multicast destinations, and forms and distributes copies of the multicast packets. An L2TP tunnel and an L2TP session are formed between LAC 1-i and LNS 2-i, and LNS 2-i is connected to network NW2 such as the Internet. Data is transferred between a subscriber and the network through the L2TP connection. LNS 2-i and sever S1 are connected through network NW2 which has routers. A packet transfer apparatus enables LAC 1-i to manage subscriber information and to form and distribute copies of the packets to the subscribers when server S1 on network NW2 distributes multicast packets of a program or the like to the subscribers.
摘要翻译： LAC管理组播目的地，形成和分发组播报文的副本。在LAC 1 -i和LNS 2 -i之间形成L2TP隧道和L2TP会话，并且LNS 2 -i连接到诸如因特网的网络NW 2。数据通过L2TP连接在用户和网络之间传输。 LNS 2 -i和服务器S1通过具有路由器的网络NW 2连接。分组传送装置使得LAC 1 -i能够管理用户信息，并且在网络NW2上的服务器S1将节目的组播分组等分配给用户时，将分组的副本形式和分发给用户。

8. 发明申请

US20060023733A1 Packet transfer apparatus 审中-公开
标题翻译：分组传送装置
公开(公告)号：US20060023733A1
公开(公告)日：2006-02-02
申请号：US11028309
申请日：2005-01-04
申请人： Shinsuke Shimizu , Hiroaki Miyata , Jun Nakajima , Yoshitaka Sakamoto , Migaku Ota
发明人： Shinsuke Shimizu , Hiroaki Miyata , Jun Nakajima , Yoshitaka Sakamoto , Migaku Ota
IPC分类号： H04L12/56
CPC分类号： H04L63/083 , H04L12/185
摘要： Upon receiving a connection request from a terminal, a packet transfer apparatus registers information on the terminal with a memory and forwards information necessary for the authentication of the terminal and an authentication request to an authentication server. The apparatus then receives authentication permission and a multicast group address list associated with the terminal that has made the connection request from the server. The apparatus then associates the multicast group address list received with the terminal information stored in the memory for registration. Upon receiving a participation request from the terminal, the apparatus determines whether or not the group address contained in the participation request is present in the list in the memory. If the group address is present in the list in the memory, the apparatus permits the delivery of a packet to the terminal from a content delivery server and transmits the packet to the terminal.
摘要翻译：在从终端接收到连接请求时，分组传送装置向存储器登记终端的信息，并且向认证服务器转发终端认证所需的信息和认证请求。然后，该装置接收到从服务器发出连接请求的与终端相关联的认证许可和多播组地址列表。然后，该装置将接收到的多播组地址列表与存储在存储器中的用于注册的终端信息相关联。在从终端接收到参与请求时，设备确定参与请求中包含的组地址是否存在于存储器中的列表中。如果组地址存在于存储器中的列表中，则该设备允许从内容传送服务器向终端传送分组，并将该分组发送到终端。

9. 发明申请

US20050207411A1 Packet transfer apparatus 失效
标题翻译：分组传送装置
公开(公告)号：US20050207411A1
公开(公告)日：2005-09-22
申请号：US11033386
申请日：2005-01-12
申请人： Migaku Ota , Hiroaki Miyata , Jun Nakajima , Yoshitaka Sakamoto
发明人： Migaku Ota , Hiroaki Miyata , Jun Nakajima , Yoshitaka Sakamoto
IPC分类号： H04L12/721 , H04L12/28 , H04L12/46 , H04L12/729 , H04L12/919 , H04L29/06 , H04L12/56
CPC分类号： H04L12/2859 , H04L12/2856 , H04L12/4633 , H04L45/00 , H04L45/30 , H04L45/34 , H04L45/66 , H04L69/16 , H04L69/168
摘要： A packet transfer apparatus which can switch a communication path for each of a plurality of users using the same L2TP tunnel is provided. Packet transfer apparatuses terminating L2TP contain a table specifying a flow threshold level and a priority level of each subscriber; the amount of packet flow of each subscriber is measured in accordance with the information in the table; if the threshold level is exceeded, the packet communication path is switched in accordance with the priority level specified for each subscriber. The OSPF protocol is used to manage the path information, and the information of a plurality of paths to a destination is stored in a path management table. The path is switched by specifying destination routers with the source routing option in the IP header of a packet after L2TP encapsulation.
摘要翻译：提供了可以使用相同的L2TP隧道来切换多个用户中的每一个的通信路径的分组传送装置。终止L2TP的分组传送装置包含指定每个用户的流量阈值水平和优先级的表; 根据表中的信息测量每个用户的数据包流量; 如果超过阈值级别，则根据为每个用户指定的优先级来切换分组通信路径。 OSPF协议用于管理路径信息，并且到目的地的多条路径的信息存储在路径管理表中。通过在L2TP封装后，通过指定目的地路由器与源路由选项在数据包的IP头中进行切换。

10. 发明授权

US07636360B2 Dynamic VLAN ID assignment and packet transfer apparatus 失效
标题翻译：动态VLAN ID分配和数据包传输设备
公开(公告)号：US07636360B2
公开(公告)日：2009-12-22
申请号：US11391417
申请日：2006-03-29
申请人： Minoru Nagai , Hiroaki Miyata , Migaku Ota
发明人： Minoru Nagai , Hiroaki Miyata , Migaku Ota
IPC分类号： H04L12/28 , H04L12/56 , G06F15/16
CPC分类号： H04L12/4645 , H04L12/467
摘要： Any or unique VLAN ID is dynamically assigned to a user terminal connected to a network, and communication by the assigned VLAN ID is enabled. A connection request from a user terminal is directed to L2GWs by a tagged VLAN frame having a common VLAN ID on the network. The L2GWs determine whether the connection request can be met, obtain a VLAN ID that can be assigned to the user terminal from a VLAN ID management server, configure themselves to communicate by the assigned VLAN ID, and report the VLAN ID to the user terminal. The user terminal performs subsequent communication by the reported VLAN ID. L2SWs monitor communication between the user terminal and the L2GWs and configure themselves to allow communication between the user terminal and the L2GWs by the VLAN ID assigned to the user terminal.
摘要翻译：任何或唯一的VLAN ID被动态地分配给连接到网络的用户终端，并且分配的VLAN ID的通信被使能。来自用户终端的连接请求通过网络上具有公共VLAN ID的标记VLAN帧引导到L2GW。 L2GW确定是否满足连接请求，从VLAN ID管理服务器获取可以分配给用户终端的VLAN ID，配置自己通过分配的VLAN ID进行通信，并向用户终端报告VLAN ID。用户终端通过报告的VLAN ID进行后续通信。 L2SW监控用户终端和L2GW之间的通信，并配置自身，通过分配给用户终端的VLAN ID来允许用户终端和L2GW之间的通信。

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