公开(公告)号：US06490622B1

公开(公告)日：2002-12-03

申请号：US09038159

申请日：1998-03-11

申请人： Kenichi Nagami ,  Yasuhiro Katsube ,  Shigeo Matsuzawa

发明人： Kenichi Nagami ,  Yasuhiro Katsube ,  Shigeo Matsuzawa

IPC分类号： G06F1516

CPC分类号： H04Q11/0478 ,  H04L2012/563 ,  H04L2012/5642

摘要： A scheme for sharing a common virtual connection identifier between end-nodes, which enable sharing of a common identifier of a sufficient information length at both end-nodes of a virtual connection. In this scheme, the first message containing a first identifier for provisionally identifying a virtual connection commonly between neighboring nodes is exchanged between neighboring nodes, at a time of setting up the virtual connection. Then, the second message containing a second identifier having a larger information size than the first identifier for formally identifying the virtual connection commonly between neighboring nodes, in a form that enables establishing of a correspondence between the first identifier and the second identifier, is exchanged between neighboring nodes through another virtual connection different from the virtual connection to be set up. The correspondence between the first identifier and the second identifier is managed at each node according to the first message and the second message so as to share the second identifier between neighboring nodes.

摘要翻译： 用于在终端节点之间共享公共虚拟连接标识符的方案，其使得能够在虚拟连接的两个端点处共享足够的信息长度的公共标识符。 在该方案中，在建立虚拟连接时，在相邻节点之间交换包含临时标识相邻节点之间的虚拟连接的第一标识符的第一消息。 然后，以能够建立第一标识符和第二标识符之间的对应关系的形式，包含具有比第一标识符大的信息大小的第二标识符的第二消息在第一标识符之间进行交换，所述第二标识符在第一标识符之间正常地标识相邻节点之间的虚拟连接， 相邻节点通过另一虚拟连接不同于虚拟连接进行设置。 根据第一消息和第二消息，在每个节点处管理第一标识符和第二标识符之间的对应关系，以便在相邻节点之间共享第二标识符。

公开(公告)号：US6167051A

公开(公告)日：2000-12-26

申请号：US891447

申请日：1997-07-10

申请人： Kenichi Nagami ,  Hisako Tanaka ,  Yasuhiro Katsube

发明人： Kenichi Nagami ,  Hisako Tanaka ,  Yasuhiro Katsube

IPC分类号： H04L12/46 ,  H04L12/18 ,  H04L12/70 ,  H04L12/701 ,  H04L12/913 ,  H04Q3/00 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04L12/1886 ,  H04L12/1854 ,  H04L2012/5614 ,  H04L2012/5619 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A mechanism for performing multicast packet transfer when a certain one of the destination nodes participating in the multicast communication requires resource reservation for a certain packet flow specified among the packet flows to that destination node. A system may transfer multicast packets using a plurality of virtual connections based on which flow the packets to be transferred belong to, so that each node receives the packets without duplication. Alternatively, a system may selectively discard received packets to avoid processing duplicated packets, although duplicated packets are received at each node.

公开(公告)号：US07747753B2

公开(公告)日：2010-06-29

申请号：US10437059

申请日：2003-05-14

申请人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

发明人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

IPC分类号： G06F15/16

CPC分类号： H04L12/4608 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

摘要： A packet transfer scheme in a network system capable of realizing a high speed, large capacity inter-network communication under an internet environment. A network interconnection apparatus (router) has a memory for storing a correspondence relationship between a virtual connection used in receiving a packet from one logical network and a virtual connection used in transmitting a packet to another logical network, and a transfer at a datalink layer is carried out according to the registered correspondence relationship, to effectively form a bypass pipe capable of transferring a packet by an datalink layer level processing alone over a plurality of networks from the transmission terminal to the destination terminal, so that a high speed packet transfer between networks can be realized.

摘要翻译： 一种能够在互联网环境下实现高速，大容量的网络间通信的网络系统中的分组传送方案。 网络互连装置（路由器）具有用于存储用于从一个逻辑网络接收分组的虚拟连接与将数据包发送到另一个逻辑网络所使用的虚拟连接之间的对应关系的存储器，并且数据链路层的传输是 根据注册的对应关系进行，以便有效地形成能够通过多个网络从传输终端到目的地终端的数据链路层级处理来传送分组的旁路管，使得网络之间的高速分组传送 可以实现。

公开(公告)号：US06598080B1

公开(公告)日：2003-07-22

申请号：US09472181

申请日：1999-12-27

申请人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

发明人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

IPC分类号： G06F1516

CPC分类号： H04L12/4608 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

摘要： At a time of transmitting a packet from a node connected with one logical network to another logical network, a control message is transmitted to a network interconnection apparatus connecting the one logical network and the another logical network, when a new node is activated beyond the network interconnection apparatus, the control message including information for a registration in the network interconnection apparatus of a correspondence relationship between a first virtual path to be used in receiving a packet from the one logical network and a second virtual path to be used in transmitting the packet to the another logical network.

摘要翻译： 在从与一个逻辑网络连接的节点发送分组到另一个逻辑网络的时间，当新节点被激活超出网络时，控制消息被发送到连接一个逻辑网络和另一个逻辑网络的网络互连设备 互联装置，所述控制消息包括用于在所述网络互连装置中登记的用于在从所述一个逻辑网络接收分组中使用的第一虚拟路径与用于将所述分组发送的第二虚拟路径之间的对应关系的信息 另一个逻辑网络。

公开(公告)号：US5822319A

公开(公告)日：1998-10-13

申请号：US649514

申请日：1996-05-17

申请人： Kenichi Nagami ,  Yasuhiro Katsube

发明人： Kenichi Nagami ,  Yasuhiro Katsube

IPC分类号： H04L29/06 ,  H04L12/46 ,  H04L12/66 ,  H04L12/723 ,  H04L12/851 ,  H04L12/951 ,  H04M3/00 ,  H04Q3/00 ,  H04Q11/04 ,  H04L12/56

CPC分类号： H04Q11/0478 ,  H04L45/10 ,  H04L2012/5616 ,  H04L2012/562 ,  H04L2012/5653 ,  H04L2012/5665 ,  H04L2012/5667 ,  H04L2012/5679

摘要： A router device realizing a datagram transfer method for improving the datagram transfer efficiency by ascertaining the transfer target and/or the requested quality of service without referring to the datagram content. The router device has network interfaces connected with networks including at least one virtual connection oriented network, a table for registering a correspondence between a virtual connection identifier and a transfer target network interface and/or a quality of service, a connection identifier analysis unit for determining a transfer target network interface and/or a quality of service for a datagram entered from one virtual connection, by referring to the table according to a virtual connection identifier of that one virtual connection. The datagram can be transferred to the determined transfer target network interface, while applying a priority control for datagrams to be transferred by the router device according to the determined quality of service.

摘要翻译： 实现数据报传输方法的路由器设备，用于通过在不参考数据报内容的情况下确定传输目标和/或所请求的服务质量来提高数据报传输效率。 路由器设备具有与包括至少一个面向虚拟连接的网络的网络连接的网络接口，用于注册虚拟连接标识符和传送目标网络接口之间的对应关系的表和/或服务质量的连接标识符分析单元，用于确定 通过根据该一个虚拟连接的虚拟连接标识符参考该表，从一个虚拟连接输入的数据报的传送目标网络接口和/或服务质量。 数据报可以被传送到确定的传送目标网络接口，同时根据确定的服务质量对路由器设备传送的数据报应用优先级控制。

公开(公告)号：US06356553B1

公开(公告)日：2002-03-12

申请号：US09631976

申请日：2000-08-03

申请人： Kenichi Nagami ,  Hisako Tanaka ,  Yasuhiro Katsube

发明人： Kenichi Nagami ,  Hisako Tanaka ,  Yasuhiro Katsube

IPC分类号： H04L1228

CPC分类号： H04L12/1886 ,  H04L12/1854 ,  H04L2012/5614 ,  H04L2012/5619 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A mechanism for performing multicast packet transfer when a certain one of the destination nodes participating in the multicast communication requires resource reservation for a certain packet flow specified among the packet flows to that destination node. A system may transfer multicast packets using a plurality of virtual connections based on which flow the packets to be transferred belong to, so that each node receives the packets without duplication. Alternatively, a system may selectively discard received packets to avoid processing duplicated packets, although duplicated packets are received at each node.

摘要翻译： 当参与多播通信的目的地节点中某一个目的地节点需要资源预留时，在到该目的地节点的分组流中指定的特定分组流时，执行组播分组传送的机制。 系统可以根据要转移的分组属于哪个流，使用多个虚拟连接传输多播分组，使得每个节点不重复地接收分组。 或者，系统可以选择性地丢弃所接收的分组以避免处理复制的分组，尽管在每个节点处接收到重复分组。

公开(公告)号：USRE41772E1

公开(公告)日：2010-09-28

申请号：US10629735

申请日：2003-07-30

申请人： Kenichi Nagami ,  Yasuhiro Katsube

发明人： Kenichi Nagami ,  Yasuhiro Katsube

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04Q11/0478 ,  H04L45/10 ,  H04L2012/5616 ,  H04L2012/562 ,  H04L2012/5653 ,  H04L2012/5665 ,  H04L2012/5667 ,  H04L2012/5679

摘要： A router device realizing a datagram transfer method for improving the datagram transfer efficiency by ascertaining the transfer target and/or the requested quality of service without referring to the datagram content. The router device has network interfaces connected with networks including at least one virtual connection oriented network, a table for registering a correspondence between a virtual connection identifier and a transfer target network interface and/or a quality of service, a connection identifier analysis unit for determining a transfer target network interface and/or a quality of service for a datagram entered from one virtual connection, by referring to the table according to a virtual connection identifier of that one virtual connection. The datagram can be transferred to the determined transfer target network interface, while applying a priority control for datagrams to be transferred by the router device according to the determined quality of service.

摘要翻译： 实现数据报传输方法的路由器设备，用于通过在不参考数据报内容的情况下确定传输目标和/或所请求的服务质量来提高数据报传输效率。 路由器设备具有与包括至少一个面向虚拟连接的网络的网络连接的网络接口，用于注册虚拟连接标识符和传送目标网络接口之间的对应关系的表和/或服务质量的连接标识符分析单元，用于确定 通过根据该一个虚拟连接的虚拟连接标识符参考该表，从一个虚拟连接输入的数据报的传送目标网络接口和/或服务质量。 数据报可以被传送到确定的传送目标网络接口，同时根据确定的服务质量对路由器设备传送的数据报应用优先级控制。

公开(公告)号：US20050100025A1

公开(公告)日：2005-05-12

申请号：US11013468

申请日：2004-12-17

申请人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

发明人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

IPC分类号： H04Q3/00 ,  H04L12/28 ,  H04L12/46 ,  H04L12/66 ,  H04L12/701 ,  H04L12/721 ,  H04L12/747 ,  H04L12/751 ,  H04L12/801 ,  H04L12/911 ,  H04L12/951 ,  H04Q11/04 ,  H04L12/56

CPC分类号： H04L12/4608 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

摘要： A packet transfer scheme in a network system capable of realizing a high speed, large capacity inter-network communication under an internet environment. A network interconnection apparatus (router) has a memory for storing a correspondence relationship between a virtual connection used in receiving a packet from one logical network and a virtual connection used in transmitting a packet to another logical network, and a transfer at a datalink layer is carried out according to the registered correspondence relationship, to effectively form a bypass pipe capable of transferring a packet by an datalink layer level processing alone over a plurality of networks from the transmission terminal to the destination terminal, so that a high speed packet transfer between networks can be realized.

摘要翻译： 一种能够在互联网环境下实现高速，大容量的网络间通信的网络系统中的分组传送方案。 网络互连装置（路由器）具有用于存储用于从一个逻辑网络接收分组的虚拟连接与将数据包发送到另一个逻辑网络所使用的虚拟连接之间的对应关系的存储器，并且数据链路层的传输是 根据注册的对应关系进行，以便有效地形成能够通过多个网络从传输终端到目的地终端的数据链路层级处理来传送分组的旁路管，使得网络之间的高速分组传送 可以实现。

公开(公告)号：US06185213B2

公开(公告)日：2001-02-06

申请号：US08960429

申请日：1997-10-29

申请人： Yasuhiro Katsube ,  Hisako Tanaka ,  Kenichi Nagami

发明人： Yasuhiro Katsube ,  Hisako Tanaka ,  Kenichi Nagami

IPC分类号： H04L514

CPC分类号： H04L5/14 ,  H04L12/5601 ,  H04L49/251 ,  H04L49/3009 ,  H04L49/602

摘要： A packet transfer control method and a node device which are capable of providing a dedicated cut-through path for a specific end-to-end packet flow, while reducing a time required until the cut-through path is established, so as to be able to reduce the load of the address analysis processing at the router. One node belonging to one logical network stores an information indicating an existence of a first dedicated virtual path for transferring packet flows specified by a first condition, which is capable of transferring packets without applying a network layer processing up to another node belonging to another logical network, and the communicates an identifier information for identifying a second dedicated virtual path for transferring a packet flow specified by a second condition which is more specific than the first condition by utilizing the first dedicated virtual path, and a condition information for indicating the second condition, in order to set up the second dedicated virtual path up to a termination point node of the first dedicated virtual path or a further downstream side node, between that one node and the termination point node.

摘要翻译： 一种分组传送控制方法和节点装置，其能够为特定的端到端分组流提供专用的直通路径，同时减少直到通过路径建立所需的时间，以便能够 以减少路由器上的地址分析处理的负担。 属于一个逻辑网络的一个节点存储指示用于传送由第一条件指定的分组流的第一专用虚拟路径的存在的信息，该第一条件能够在不应用网络层处理直到另一个逻辑网络的另一个节点 并且通过利用第一专用虚拟路径来传送用于识别用于传送由比第一条件更具体的第二条件指定的分组流的第二专用虚拟路径的标识符信息，以及用于指示第二条件的条件信息， 以便建立第二专用虚拟路径直到第一专用虚拟路径的终端点节点或另一个下游侧节点，在该一个节点和终止点节点之间。

公开(公告)号：US5835710A

公开(公告)日：1998-11-10

申请号：US924825

申请日：1997-09-05

申请人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

发明人： Kenichi Nagami ,  Junko Ami ,  Yasuhiro Katsube ,  Takeshi Saito ,  Hiroshi Esaki

IPC分类号： H04Q3/00 ,  H04L12/28 ,  H04L12/46 ,  H04L12/66 ,  H04L12/701 ,  H04L12/721 ,  H04L12/747 ,  H04L12/751 ,  H04L12/801 ,  H04L12/911 ,  H04L12/951 ,  H04Q11/04 ,  G06F13/14

CPC分类号： H04L12/4608 ,  H04Q11/0478 ,  H04L2012/562 ,  H04L2012/5667

摘要： A packet transfer scheme in a network system capable of realizing a high speed, large capacity inter-network communication under an internet environment. A network interconnection apparatus (router) has a memory for storing a correspondence relationship between a virtual connection used in receiving a packet from one logical network and a virtual connection used in transmitting a packet to another logical network, and a transfer at a datalink layer is carried out according to the registered correspondence relationship, to effectively form a bypass pipe capable of transferring a packet by an datalink layer level processing alone over a plurality of networks from the transmission terminal to the destination terminal, so that a high speed packet transfer between networks can be realized.

摘要翻译： 一种能够在互联网环境下实现高速，大容量的网络间通信的网络系统中的分组传送方案。 网络互连装置（路由器）具有用于存储用于从一个逻辑网络接收分组的虚拟连接与将数据包发送到另一个逻辑网络所使用的虚拟连接之间的对应关系的存储器，并且数据链路层的传输是 根据注册的对应关系进行，以便有效地形成能够通过多个网络从传输终端到目的地终端的数据链路层级处理来传送分组的旁路管，使得网络之间的高速分组传送 可以实现。