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1. 发明授权

US06490246B2 System and method for using active and standby routers wherein both routers have the same ID even before a failure occurs 有权
标题翻译：使用主备路由器的系统和方法，其中即使在发生故障之前，两个路由器都具有相同的ID
公开(公告)号：US06490246B2
公开(公告)日：2002-12-03
申请号：US09478376
申请日：2000-01-06
申请人： Hidehiro Fukushima , Masato Tsukakoshi , Shigeki Morimoto , Tohru Setoyama
发明人： Hidehiro Fukushima , Masato Tsukakoshi , Shigeki Morimoto , Tohru Setoyama
IPC分类号： H04J116
CPC分类号： H04L45/02 , H04L45/021 , H04L45/54 , H04L45/586 , H04L69/40
摘要： A multiplex router device, having a multiplex configuration, is instrumental in reducing internal and external traffic flows for a routing protocol process that occurs at a time of system switchover. A data base integration module, in a route calculation unit in the active mode, stores network link-state information collected by a routing protocol packet transmission-reception module in a link-state data base, and at the same time sends the information to a route calculation unit, but does not send routing protocol information collected. In the route calculation unit in the standby mode, a data base integration module that received the network link-state information stores its contents into its own link-state data base. When a failure occurs in the route calculation unit in the active mode, the route calculation unit performs the routing protocol process by using the stored link-state data base.
摘要翻译：具有多路复用配置的复用路由器设备有助于减少在系统切换时发生的路由协议进程的内部和外部流量。在活动模式的路由计算单元中，数据库积分模块将由路由协议分组发送接收模块收集的网络链路状态信息存储在链路状态数据库中，同时将信息发送到路由计算单位，但不发送路由协议信息收集。在待机模式的路由计算单元中，接收到网络链路状态信息的数据库积分模块将其内容存储在其自身的链路状态数据库中。当在活动模式中路由计算单元发生故障时，路由计算单元通过使用所存储的链路状态数据库来执行路由协议处理。

2. 发明授权

US5018133A Network system comprising a plurality of LANs using hierarchical routing 失效
标题翻译：网络系统包括使用分层路由的多个LAN
公开(公告)号：US5018133A
公开(公告)日：1991-05-21
申请号：US582781
申请日：1990-09-06
申请人： Masato Tsukakoshi , Yasuhiro Takahashi , Matsuaki Terada , Nobuyuki Takagishi
发明人： Masato Tsukakoshi , Yasuhiro Takahashi , Matsuaki Terada , Nobuyuki Takagishi
IPC分类号： H04L12/46 , H04L12/715 , H04L12/753 , H04L29/12
CPC分类号： H04L29/12254 , H04L12/462 , H04L29/12839 , H04L45/04 , H04L45/48 , H04L61/2038 , H04L61/6022
摘要： In a network system according to the hierarchical routing method, in which at least one main LAN and a plurality of sub-LANs are connected hierarchically through bridges, bridge IDs having the smallest values in the network are given to a plurality of bridges (first bridges) connected to the main LAN. Bridge IDs unique to each other having values greater than the bridge IDs of the first bridges are given to a plurality of bridges (second bridges) connecting sub-LANs. Each of the first bridges transmits periodically a control message (Hello message) for making the network in a tree structure by using some of the second bridges as backup bridges to the side of the sub-LANs. When a change takes place in the topology of the network, the reconstruction of the tree structure is effected in a localized part of the network including a position of hindrance, the root of the network being constituted by a particular first bridge.
摘要翻译：在根据分层路由方法的网络系统中，其中至少一个主LAN和多个子LAN通过网桥分层连接，网络中具有最小值的网桥ID被提供给多个网桥（第一网桥）连接到主局域网。将具有大于第一桥的桥ID的值彼此唯一的桥ID提供给连接子LAN的多个网桥（第二桥）。每个第一桥接器周期性地发送控制消息（Hello消息），用于通过使用一些第二网桥作为子LAN侧面的备用网桥来使网络成树结构。当在网络的拓扑中发生变化时，树结构的重构在网络的局部部分中实现，包括阻碍位置，网络的根由特定的第一桥构成。

3. 发明授权

US06577634B1 Method for sharing network information and a router apparatus 有权
公开(公告)号：US06577634B1
公开(公告)日：2003-06-10
申请号：US09343242
申请日：1999-06-30
申请人： Masato Tsukakoshi , Shinsuke Suzuki , Shigeki Morimoto
发明人： Masato Tsukakoshi , Shinsuke Suzuki , Shigeki Morimoto
IPC分类号： H04L1228
CPC分类号： H04L45/586 , H04L45/02 , H04L45/021 , H04L45/54 , H04L45/583 , H04L45/60 , H04L69/18 , H04L69/40
摘要： A highly-expandable router configuration technology which flexibly meets the need to increase lines as a network grows. A network information sharing unit is provided in a route calculation unit of each router in a clustered router. The network information sharing unit receives an update notification of network information collected by routing protocol units and sends this update information to all other routers in the clustered router as a network information notification packet. The network information sharing units in the receiving router notifies the routing protocol units of the contents of the received updated information. The routing protocol unit updates the network information thereof based on the notified contents, thereby allowing the network information obtained from all routers outside the clustered router to be shared and the clustered router to be recognized externally as a single router.

4. 发明授权

US5086426A Communication network system having a plurality of different protocal LAN's 失效
标题翻译：具有通过桥连接的多个不同原型LAN的通信网络系统
公开(公告)号：US5086426A
公开(公告)日：1992-02-04
申请号：US286847
申请日：1988-12-20
申请人： Masato Tsukakoshi , Yasuhiro Takahashi , Matsuaki Terada , Kenji Kusaka
发明人： Masato Tsukakoshi , Yasuhiro Takahashi , Matsuaki Terada , Kenji Kusaka
IPC分类号： H04L12/46
CPC分类号： H04L12/4616
摘要： In a network system comprising a plurality of secondary LAN's of different types operable at a relatively low speed, a single primary LAN accommodating the secondary LAN's and operable at a relatively high speed, and a plurality of bridges for connecting the primary LAN and the secondary LAN's, a communication frame transmitting on the primary LAN includes an identifier representative of the type of a secondary LAN to which a source terminal belongs and a bridge receiving the primary LAN frame carries out a protocol processing on the basis of the identifier representative of the type of the secondary LAN.
摘要翻译：在包括可以相对较低速度操作的多个不同类型的辅助LAN的网络系统中，容纳辅助LAN并且可以相对较高速度操作的单个主LAN，以及用于连接主LAN和辅助LAN的多个桥在主LAN上发送的通信帧包括代表源终端所属的辅助LAN的类型的标识符，并且接收主LAN帧的桥接器基于表示类型的标识符的标识符执行协议处理次要LAN。

5. 发明授权

US06496510B1 Scalable cluster-type router device and configuring method thereof 有权
标题翻译：可扩展集群式路由器设备及其配置方法
公开(公告)号：US06496510B1
公开(公告)日：2002-12-17
申请号：US09190437
申请日：1998-11-13
申请人： Masato Tsukakoshi , Shigeki Morimoto
发明人： Masato Tsukakoshi , Shigeki Morimoto
IPC分类号： H04L1228
CPC分类号： H04L45/586 , H04L45/02 , H04L45/021 , H04L45/54
摘要： A router device is provided with a plurality of router node devices interconnected via internal transmission lines, in which each of the plurality of router node devices comprises a unit for connecting to a plurality of networks; a routing table describing paths via which packets are forwarded; a forwarding unit for forwarding a packet between one network and another, and for forwarding the packet between the network connected to the router node device and the network connected to some other router node device of the router device via some other router node device, according to the routing table; a routing information collection unit for collecting routing information from each router device connected to the network, not via other router node devices, to the router node device to create a routing table in each router device, the routing information being information to be exchanged among router devices, a distribution unit for distributing the collected routing information to other router node devices via the internal transmission lines; and a routing table generation unit for generating the routing table based on the collected routing information and the routing information distributed from the other router node devices.
摘要翻译：路由器设备设置有经由内部传输线互连的多个路由器节点设备，其中多个路由器节点设备中的每一个包括用于连接到多个网络的单元; 描述数据包转发的路径的路由表; 转发单元，用于在一个网络和另一个网络之间转发分组，并且用于在连接到路由器节点设备的网络和连接到路由器设备的某个其他路由器节点设备的网络之间经由某个其他路由器节点设备转发分组，根据路由表; 路由信息收集单元，用于从连接到网络的每个路由器设备收集路由信息，而不是经由其他路由器节点设备到路由器节点设备，以在每个路由器设备中创建路由表，路由信息是路由器之间要交换的信息设备，分配单元，用于经由内部传输线路将收集的路由信息分发到其他路由器节点设备; 以及路由表生成单元，用于基于所收集的路由信息和从其他路由器节点设备分发的路由信息来生成路由表。

6. 发明授权

US6049524A Multiplex router device comprising a function for controlling a traffic occurrence at the time of alteration process of a plurality of router calculation units 有权
标题翻译：多路径路由器装置，具有控制多个路由器运算部的变更处理时的交通事件的功能
公开(公告)号：US6049524A
公开(公告)日：2000-04-11
申请号：US195707
申请日：1998-11-19
申请人： Hidehiro Fukushima , Masato Tsukakoshi , Shigeki Morimoto , Tohru Setoyama
发明人： Hidehiro Fukushima , Masato Tsukakoshi , Shigeki Morimoto , Tohru Setoyama
IPC分类号： H04L12/40 , H04L12/46 , H04L12/707 , H04L12/775 , H04L29/14 , H04L12/28
CPC分类号： H04L45/02 , H04L45/021 , H04L45/54 , H04L45/586 , H04L69/40
摘要： A multiplex router device, having a multiplex configuration, is instrumental in reducing internal and external traffic flows for a routing protocol process that occurs at a time of system switchover. A data base integration module, in a route calculation unit in the active mode, stores network link-state information collected by a routing protocol packet transmission-reception module in a link-state data base, and at the same time sends the information to a route calculation unit, but does not send routing protocol information collected. In the route calculation unit in the standby mode, a data base integration module that received the network link-state information stores its contents into its own link-state data base. When a failure occurs in the route calculation unit in the active mode, the route calculation unit performs the routing protocol process by using the stored link-state data base.
摘要翻译：具有多路复用配置的复用路由器设备有助于减少在系统切换时发生的路由协议进程的内部和外部流量。在活动模式的路由计算单元中，数据库积分模块将由路由协议分组发送接收模块收集的网络链路状态信息存储在链路状态数据库中，同时将信息发送到路由计算单位，但不发送路由协议信息收集。在待机模式的路由计算单元中，接收到网络链路状态信息的数据库积分模块将其内容存储在其自身的链路状态数据库中。当在活动模式中路由计算单元发生故障时，路由计算单元通过使用所存储的链路状态数据库来执行路由协议处理。

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