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1. 发明申请

US20050078673A1 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US20050078673A1
公开(公告)日：2005-04-14
申请号：US10919393
申请日：2004-08-17
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L12/863 , H04L12/865 , H04L12/867 , H04L12/869 , H04L12/931 , H04L12/933 , H04L12/937 , H04L12/947 , H04L12/951 , H04L12/56
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

2. 发明授权

US06836479B1 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US06836479B1
公开(公告)日：2004-12-28
申请号：US09362134
申请日：1999-07-28
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L1228
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

3. 发明授权

US07869441B2 Variable length packet communication device 失效
标题翻译：可变长度分组通信设备
公开(公告)号：US07869441B2
公开(公告)日：2011-01-11
申请号：US10919393
申请日：2004-08-17
申请人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
发明人： Kenichi Sakamoto , Nobuhito Matsuyama , Takeshi Aimoto , Noboru Endo , Koji Wakayama , Norihiko Moriwaki
IPC分类号： H04L12/28
CPC分类号： H04L49/30 , H04L12/5601 , H04L45/302 , H04L45/60 , H04L49/101 , H04L49/20 , H04L49/254 , H04L49/3009 , H04L49/3018 , H04L49/3027 , H04L49/508 , H04L49/608 , H04L2012/5651 , H04L2012/5652 , H04L2012/5681
摘要： An input interface segments a variable length packet into plurality of fixed length cells and generates an internal switching information based on the header information of the variable length packet. The input interface transmits the information to a switch and, after that, transmits the cells as the following cells of the information to the switch. The switch performs switching processing to the succeeding cells based on the information. Therefore, the information is not added to the cells. When an input interface starts to transmit cells generated from a packet to its destination output interface through the switch, the switch is reserved until all the cells arrive at the output interfaces.
摘要翻译：输入接口将可变长度分组划分成多个固定长度单元，并且基于可变长度分组的报头信息生成内部切换信息。输入接口将信息发送给交换机，然后将信元作为信息的下列单元发送给交换机。交换机根据该信息对后续的小区进行切换处理。因此，信息不会添加到单元格中。当输入接口开始通过交换机将从数据包生成的单元传输到其目标输出接口时，保留交换机直到所有单元到达输出接口。

4. 发明授权

US07633954B2 Apparatus and method for interworking between MPLS network and non-MPLS network 有权
标题翻译： MPLS网络与非MPLS网络互通的设备和方法
公开(公告)号：US07633954B2
公开(公告)日：2009-12-15
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： H04L12/56
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.
摘要翻译：在VLAN间和MPLS网络的设备中，VLAN ID与MPLS标签相关联。在从VLAN网络到MPLS网络进行互通的设备中，输出MPLS标签由一对VLAN ID和数据包的第3层或第4层报头中的信息确定。输出MPLS标签为每个VLAN分配一个独立的值。在从MPLS网络到另一个VLAN网络进行互通的设备中，输入的MPLS标签与VLAN ID相关联。

5. 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.

6. 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.

7. 发明授权

US08774001B2 Relay device and relay method 有权
标题翻译：继电器和继电器方式
公开(公告)号：US08774001B2
公开(公告)日：2014-07-08
申请号：US13357927
申请日：2012-01-25
申请人： Takeshi Kumagai , Nobuhito Matsuyama , Takeshi Aimoto , Toshio Doi , Kazuo Sugai
发明人： Takeshi Kumagai , Nobuhito Matsuyama , Takeshi Aimoto , Toshio Doi , Kazuo Sugai
IPC分类号： H04L12/26
CPC分类号： H04L47/6275 , H04L47/2441 , H04L47/60 , H04L49/9036
摘要： A relay device of relaying a communication packet is disclosed, which comprises: an input module configured to receive the communication packet as an input; a buffer configured to have a plurality of queues and temporarily accumulated the received communication packet; a sorter configured to sort the received communication packet to one of the plurality of queues, depending on a specific value obtained by a predetermined function that gives an aggregate output from an input which is transfer information regarding transfer of the communication packet; and a band controller configured to control a bandwidth for each of the plurality of queues and output communication packets accumulated in the plurality of queues for transmission of the communication packets. This ensures the quality of service, while saving the capacity of the buffer used for the queues.
摘要翻译：公开了一种中继通信分组的中继装置，包括：输入模块，用于接收通信分组作为输入; 配置为具有多个队列并临时累积所接收的通信分组的缓冲器; 分拣机，被配置为根据通过给出来自关于通信分组的传送的传输的信息的输入的聚合输出的预定功能获得的特定值，将接收到的通信分组排序到多个队列中的一个队列; 以及频带控制器，被配置为控制所述多个队列中的每一个的带宽，并且输出在所述多个队列中累积的通信分组，以发送所述通信分组。这确保了服务质量，同时节省了用于队列的缓冲区的容量。

8. 发明授权

US06874033B1 Network repeater and network next transfer desitination searching method 有权
标题翻译：网络中继器和网络下一代转移寻找方法
公开(公告)号：US06874033B1
公开(公告)日：2005-03-29
申请号：US09622484
申请日：1998-03-23
申请人： Kazuo Sugai , Takeshi Aimoto , Nobuhito Matsuyama , Shinichi Akahane , Noboru Tanabe , Yoshihito Sako
发明人： Kazuo Sugai , Takeshi Aimoto , Nobuhito Matsuyama , Shinichi Akahane , Noboru Tanabe , Yoshihito Sako
IPC分类号： G06F17/30 , H04L12/66 , H04L12/701 , H04L12/745 , G06F15/173
CPC分类号： H04L45/00 , H04L45/48 , H04L45/742
摘要： The present invention improves a network forwarding device, such as a router, in a computer network system. When an address to which a received packet is to be forwarded is searched for based on path information, a path search data structure is changed to the one in which, in a 2-branch tree search in which a destination address of the received packet is checked, one bit at a time beginning at a highest-order bit, p (p is an integer equal to or larger than 2) levels are combined into one 2P-branch tree to perform a search of the p levels of the 2-branch tree as a one-level search. This data structure speeds up path search processing.
摘要翻译：本发明改进了计算机网络系统中的诸如路由器的网络转发设备。当基于路径信息搜索要转发接收到的分组的地址时，将路径搜索数据结构改变为在其中所接收分组的目的地地址为2的分支树搜索中的路径搜索数据结构检查，一个位从一个最高位开始，p（p是等于或大于2的整数）的级别被组合成一个2 分支树，以执行对p 2分支树作为一级搜索。该数据结构加速了路径搜索处理。

9. 发明授权

US06778532B1 Packet relaying apparatus and high speed multicast system 有权
标题翻译：分组中继设备和高速组播系统
公开(公告)号：US06778532B1
公开(公告)日：2004-08-17
申请号：US09389301
申请日：1999-09-02
申请人： Shinichi Akahane , Kazuo Sugai , Takeshi Aimoto , Nobuhito Matsuyama , Yoshihito Sako , Hiroshi Sekino
发明人： Shinichi Akahane , Kazuo Sugai , Takeshi Aimoto , Nobuhito Matsuyama , Yoshihito Sako , Hiroshi Sekino
IPC分类号： H04J110
CPC分类号： H04L45/742 , H04L12/18 , H04L12/46 , H04L45/00 , H04L45/16
摘要： In a high speed multicast route searching method of searching information of a transmission port to which a received multicast packet is next transferred: a route address is formed by coupling a receiver address and a sender address in this order; one p-th power-of-2-branch tree node is configured by a collection of one two-branch tree node and two-branch tree nodes of p−1 stages totalling ((p-th power of 2)−1) nodes just under the one two-branch tree node to form a p-th power-of-2-branch tree which is stored in a memory; not one bit but consecutive p bits of the route address coupling the receiver address and sender address in a received multicast packet in this order are checked at the same time; and in accordance with the values of the consecutive bits, a search tree stored in the memory is searched. In this manner, a search process can be completed by tracing nodes (the number of bits of a search key divided by p) times at a maximum, independently from the number of entries.
摘要翻译：在高速多播路由搜索方法中，搜索接收到的多播分组的下一个传输的传输端口的信息：通过按照该顺序耦合接收机地址和发送方地址来形成路由地址; 一个p个2分支树状节点由一个两分支树节点和总共（（p-th功率为2）-1）个节点的p-1级的两分支树节点的集合来配置恰好在一个双分支树节点之下，以形成存储在存储器中的第p个2分支树枝; 不是一个位，而是同时检查在接收到的组播数据包中按顺序耦合接收器地址和发送方地址的路由地址的连续p位; 并且根据连续比特的值，搜索存储在存储器中的搜索树。以这种方式，可以独立于条目的数量，通过跟踪节点（搜索关键字的比特数除以p）乘以最大值来完成搜索处理。

10. 发明授权

US06671277B1 Network relaying apparatus and network relaying method capable of high quality transfer of packets under stable service quality control 有权
标题翻译：网络中继设备和网络中继方式，能够在稳定的业务质量控制下实现高质量的数据包传输
公开(公告)号：US06671277B1
公开(公告)日：2003-12-30
申请号：US09511797
申请日：2000-02-23
申请人： Kazuo Sugai , Takeshi Aimoto , Takeki Yazaki , Nobuhito Matsuyama , Yoshihito Sako , Tomohiko Tanabe
发明人： Kazuo Sugai , Takeshi Aimoto , Takeki Yazaki , Nobuhito Matsuyama , Yoshihito Sako , Tomohiko Tanabe
IPC分类号： H04L1256
CPC分类号： H04L45/00 , H04L45/583 , H04L45/60 , H04L49/205 , H04L49/254 , H04L49/30 , H04L49/3009 , H04L49/3063 , H04L49/309 , H04L2012/5618
摘要： A network relaying apparatus and method for high quality transfer of packets under stable quality-of-service (QoS) control. A transfer engine stores the packets received through a network interface, in a packet buffer, and the header information in a RAM. A search engine searches the transfer control information including the transfer destination information and the action information according to the header information and writes the resulting information in the header RAM. The transfer engine produces an output packet based on the information stored in the packet buffer and the header RAM and outputs it to the transfer destination. A switch operates to switch the output packet to the routing processor of the destination. The QoS control is performed at each of a plurality of points including the input-side routing processor, the output-side routing processor 10 and the switch.
摘要翻译：一种用于在稳定的服务质量（QoS）控制下高质量传输数据包的网络中继设备和方法。传输引擎将通过网络接口接收的分组存储在分组缓冲器中，并将报头信息存储在RAM中。搜索引擎根据头信息搜索包括传送目的地信息和动作信息的传送控制信息，并将得到的信息写入标题RAM。传输引擎基于存储在分组缓冲器和头部RAM中的信息产生输出分组，并将其输出到传送目的地。交换机用于将输出分组切换到目的地的路由处理器。在包括输入侧路由处理器，输出侧路由处理器10和交换机的多个点的每一个处执行QoS控制。

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