公开(公告)号：US20070047467A1

公开(公告)日：2007-03-01

申请号：US11349607

申请日：2006-02-08

申请人： Tohru Enoki ,  Kenichi Ishii ,  Yuji Ito ,  Yoshiaki Horinouchi ,  Shinichi Hayashi ,  Shinichi Kuranari

发明人： Tohru Enoki ,  Kenichi Ishii ,  Yuji Ito ,  Yoshiaki Horinouchi ,  Shinichi Hayashi ,  Shinichi Kuranari

IPC分类号： H04L12/28

CPC分类号： H04L45/10 ,  H04L45/02 ,  H04L45/18 ,  H04L45/22 ,  H04L45/28 ,  H04L45/507

摘要： A router includes a label-mapping-message receiving unit, a passing-node managing unit, and a passing-node selecting unit. The label-mapping-message receiving unit receives a label-mapping message including label information and PV TLV information from all adjacent nodes. The passing-node managing unit registers received label information and PV TLV information to manage the information. When a line fault occurs in a network, the passing-node selecting unit selects PV TLV information that does not include an identifier of the router itself from among registered PV TLV information. Thus, an optimal path is determined based on selected PV TLV information so that a loop does not occur in the network.

摘要翻译： 路由器包括标签映射消息接收单元，通过节点管理单元和通过节点选择单元。 标签映射消息接收单元从所有相邻节点接收包括标签信息和PV TLV信息的标签映射消息。 通过节点管理单元注册接收到的标签信息和PV TLV信息以管理信息。 当网络发生线路故障时，通过节点选择单元从注册的PV TLV信息中选择不包含路由器本身的标识符的PV TLV信息。 因此，基于选择的PV TLV信息确定最佳路径，使得在网络中不发生循环。

公开(公告)号：US07035226B2

公开(公告)日：2006-04-25

申请号：US09754802

申请日：2001-01-04

申请人： Tohru Enoki ,  Yoshio Aoyagi

发明人： Tohru Enoki ,  Yoshio Aoyagi

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/12 ,  H04L45/00 ,  H04L45/122

摘要： Upon reception of a label request for a new flow, a path setup device searches label switched paths (LPSs) which have already been set up for comparison with a path contained in the label request. If there exists an LSP of the same path as that in the label request, the same label as that of the LSP is allocated. If no such LSP exists, a new label is allocated. An LSP is set up based on the allocated label.

摘要翻译： 在接收到新流程的标签请求时，路径设置设备搜索已经被设置用于与包含在标签请求中的路径进行比较的标签交换路径（LPS）。 如果存在与标签请求中相同路径的LSP，则分配与该LSP相同的标签。 如果不存在这样的LSP，则分配新的标签。 基于分配的标签建立LSP。

公开(公告)号：US06421345B1

公开(公告)日：2002-07-16

申请号：US09027966

申请日：1998-02-23

申请人： Tohru Enoki ,  Shigeru Nakagawahara

发明人： Tohru Enoki ,  Shigeru Nakagawahara

IPC分类号： H04L1256

CPC分类号： H04L12/5602 ,  H04L2012/5632

摘要： An ATM device which can be connected to an ATM network via lines includes a first part setting connections on the lines, and a second part moving a connection on a line to another line if a call setup requests a band greater than idle bands of the lines so that the band requested by the call setup can be set on the line from which the connection is moved.

摘要翻译： 可以经由线路连接到ATM网络的ATM设备包括设置线路上的连接的第一部分，以及如果呼叫建立请求大于线路的空闲频带的频带的第二部分，将线路上的连接移动到另一线路 使得呼叫建立请求的频带可以在连接移动的行上设置。

公开(公告)号：US06895008B2

公开(公告)日：2005-05-17

申请号：US09818352

申请日：2001-03-27

申请人： Tohru Enoki ,  Yoshio Aoyagi ,  Yuji Oohara

发明人： Tohru Enoki ,  Yoshio Aoyagi ,  Yuji Oohara

IPC分类号： H04L12/723 ,  H04L12/927 ,  H04L12/56

CPC分类号： H04L45/00 ,  H04L45/50

摘要： In a label switching router placed at one end of an LSP set by using CRLDP, a bidirectional LSP setup TLV preparing portion prepares a bidirectional LSP setup TLV included in a bidirectional setup label request message transmitted in an up direction to a label switching router placed at the other end of the LSP. Based on an external bidirectional LSP setup request accepted by a bidirectional LSP setup accepting portion, a bidirectional LSP setup TLV analyzer analyzes the bidirectional LSP setup TLV in the message. When the message is received from the label switching router at the other end, a bidirectional LSP processor performs an LSP setup request in a down direction as opposed to the up direction. Based on the analyzed result by the bidirectional LSP setup TLV analyzer, and an explicit route preparing portion prepares an explicit route on which a router to be relayed in the down direction is prescribed. Based on an explicit route preparing request from the bidirectional LSP processor, explicit route preparing portion notifies the prepared route to the bidirectional LSP processor.

摘要翻译： 在通过使用CRLDP设置在LSP的一端的标签交换路由器中，双向LSP建立TLV准备部分准备在向上发送的双向建立标签请求消息中包含的双向LSP建立TLV到放置在 LSP的另一端。 基于双向LSP建立接受部分接受的外部双向LSP建立请求，双向LSP建立TLV分析器分析消息中的双向LSP建立TLV。 当从另一端的标签交换路由器接收到该消息时，双向LSP处理器与向上方向相反地沿下行方向执行LSP建立请求。 基于双向LSP建立TLV分析器的分析结果，并且显式路由准备部分准备明确路由，在其上规定要向下传送的路由器。 基于来自双向LSP处理器的显式路由准备请求，显式路由准备部分将准备好的路由通知给双向LSP处理器。