利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.016 秒)

    NODE DEVICE AND COMMUNICATION METHOD
    4.
    发明公开
    NODE DEVICE AND COMMUNICATION METHOD 有权
    节点设备和通信方法

    公开(公告)号：EP2432164A1

    公开(公告)日：2012-03-21

    申请号：EP09844564.6

    申请日：2009-05-11

    申请人： Fujitsu Limited

    发明人： IWAO, Tadashige ,  TAKAHASHI, Yuji ,  KOGA, Syunsuke ,  NOGUCHI, Yuri ,  MIYAKE, Masato ,  TOYOZUMI, Tatsuya

    IPC分类号： H04L12/28

    CPC分类号： H04L45/18

    摘要： A first node apparatus transmits a first frame from a first port; stores, as loop detection information, information for distinguishing the first port and first identification information for identifying the first frame, in association with each other; and receives a second frame from a second node apparatus. When second identification information for identifying the second frame is identical with the first identification information, the first node apparatus updates port state information stored in association with a destination node apparatus of the second frame so as to indicate that transmission from the first port is not feasible. According to the updated information, the first node apparatus then selects a second port from which transmission is feasible, and transmits the second frame.

    NODE DEVICE AND PROGRAM
    5.
    发明授权
    NODE DEVICE AND PROGRAM 有权
    节点设备和程序

    公开(公告)号：EP2273732B1

    公开(公告)日：2018-03-21

    申请号：EP09734953.4

    申请日：2009-04-27

    申请人： Fujitsu Limited

    发明人： IWAO, Tadashige ,  MASUBUCHI, Kentaro ,  NAKAJIMA, Chiaki ,  IKEMOTO, Kentaro ,  KOGA, Syunsuke ,  TAKAHASHI, Yuji

    IPC分类号： H04L12/751 ,  H04L12/741 ,  H04L12/721 ,  H04L12/755 ,  H04W40/12 ,  H04B7/26

    CPC分类号： H04L45/54 ,  H04B7/2606 ,  H04L45/02 ,  H04L45/021 ,  H04L45/026 ,  H04L45/26 ,  H04W40/12

    摘要： A node device and a program of simple structures autonomously select an appropriate route without imposing a load on a network. In a node device 1 in a communication network, an FID management table 5 stores an FID for unique identification of a frame and the information about a destination node of the frame, and a weighting table 7 stores weighting information about another node as a destination for relay of the frame for each final destination node of the frame. When a frame transmitted to a local node is received, and if the FID of the received frame is stored in the FID management table 5, the data about the destination node associated with the FID is updated. If the FID of the frame received from the frame reception device is not stored in the FID management table 5, the FID management table 5 corresponding to the destination node of the frame is referred to, and another node as a destination for relay of the frame is determined.

    NODE DEVICE AND PROGRAM
    9.
    发明公开
    NODE DEVICE AND PROGRAM 有权
    节点设备和程序

    公开(公告)号：EP2273732A1

    公开(公告)日：2011-01-12

    申请号：EP09734953.4

    申请日：2009-04-27

    申请人： Fujitsu Limited

    发明人： IWAO, Tadashige ,  MASUBUCHI, Kentaro ,  NAKAJIMA, Chiaki ,  IKEMOTO, Kentaro ,  KOGA, Syunsuke ,  TAKAHASHI, Yuji

    IPC分类号： H04L12/56 ,  H04B7/15 ,  H04W40/02 ,  H04W84/18

    CPC分类号： H04L45/54 ,  H04B7/2606 ,  H04L45/02 ,  H04L45/021 ,  H04L45/026 ,  H04L45/26 ,  H04W40/12

    摘要： A node device and a program of simple structures autonomously select an appropriate route without imposing a load on a network. In a node device 1 in a communication network, an FID management table 5 stores an FID for unique identification of a frame and the information about a destination node of the frame, and a weighting table 7 stores weighting information about another node as a destination for relay of the frame for each final destination node of the frame. When a frame transmitted to a local node is received, and if the FID of the received frame is stored in the FID management table 5, the data about the destination node associated with the FID is updated. If the FID of the frame received from the frame reception device is not stored in the FID management table 5, the FID management table 5 corresponding to the destination node of the frame is referred to, and another node as a destination for relay of the frame is determined.

    NODE DEVICE AND PROGRAM
    10.
    发明公开
    NODE DEVICE AND PROGRAM 有权
    KNOTENVORRICHTUNG UND计划

    公开(公告)号：EP2273717A1

    公开(公告)日：2011-01-12

    申请号：EP09733693.7

    申请日：2009-04-24

    申请人： Fujitsu Limited

    发明人： IWAO, Tadashige ,  MASUBUCHI, Kentaro ,  NAKAJIMA, Chiaki ,  IKEMOTO, Kentaro ,  KOGA, Syunsuke ,  TAKAHASHI, Yuji

    IPC分类号： H04L9/08

    CPC分类号： H04L9/0891 ,  H04L9/12 ,  H04L9/3247 ,  H04L2209/805

    摘要： In a first apparatus in a network constituted by a plurality of node apparatuses, an access key generation unit changes a first access key being a cryptographic key unique to the first node apparatus at intervals of the first time. A shared key generation unit changes a shared key being the same for the plurality of node apparatuses at intervals of a second time. The first node apparatus encrypts, using the generated shared key, the generated first access key and transmits it, and receives an access key notification frame that is transmitted from the second node apparatus and that includes data obtained by encrypting a second access key of a second node apparatus using the shared key. A decryption unit obtains the second access key by decrypting the received access key notification frame using the generated shared key. A transmission unit transmits an encrypted frame obtained by encrypting, using the second access key, a plaintext frame to which signature data obtained by encrypting data including a hash value calculated from the plaintext frame by the shared key is attached.

    摘要翻译： 在由多个节点装置构成的网络中的第一装置中，访问密钥生成单元以第一次的间隔改变作为第一节点装置唯一的密码密钥的第一访问密钥。 共享密钥生成单元以第二次的间隔更改多个节点装置的共享密钥相同的密钥。 第一节点装置使用所生成的共享密钥对所生成的第一访问密钥进行加密并发送，并且接收从第二节点装置发送的访问密钥通知帧，其包括通过对第二访问密钥进行加密而获得的数据 节点设备使用共享密钥。 解密单元通过使用所生成的共享密钥解密所接收的访问密钥通知帧来获得第二访问密钥。 发送单元发送通过使用第二访问密钥加密通过加密包含通过共享密钥从明文帧计算的哈希值的数据而获得的签名数据的明文帧而获得的加密帧。