公开(公告)号：US20080089226A1

公开(公告)日：2008-04-17

申请号：US11905376

申请日：2007-09-28

申请人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

发明人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

IPC分类号： G06F11/00 ,  G01R31/08

CPC分类号： H04L49/351 ,  H04L49/552 ,  H04L69/14 ,  H04L69/40 ,  Y02D50/30

摘要： A transmission device is connected to a layer 2 switch through a transmission path at one side, and to a relay transmission path at the other side. The transmission path includes a transmission path of a active system and a transmission path of a stand-by system. When failure occurs in the transmission path of the active system, the transmission device forcibly shuts down the transmission path of the active system upon detection of link down, to stop packet transmission, and causes the layer 2 switch to perform MAC address flush. The transmission device then switches the transmission path of the stand-by system to the active system, and transmits packets through the transmission path that has become the active system as a result of switching. The layer 2 switch performs MAC address learning to set a port, thereby maintaining communication even after occurrence of the failure.

摘要翻译： 传输设备通过一侧的传输路径和另一侧的中继传输路径连接到层2交换机。 传输路径包括有源系统的传输路径和备用系统的传输路径。 当主动系统的传输路径发生故障时，传输设备在检测到链路断开后强制关闭主用系统的传输路径，停止数据包传输，使第二层交换机执行MAC地址冲洗。 然后，发送装置将待机系统的传输路径切换到主动系统，并且作为切换的结果，通过已经成为主动系统的传输路径发送分组。 层2交换机执行MAC地址学习来设置端口，从而即使在发生故障后仍保持通信。

公开(公告)号：US07522525B2

公开(公告)日：2009-04-21

申请号：US11077303

申请日：2005-03-10

申请人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

发明人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L12/465

摘要： In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.

摘要翻译： 在具有VLAN功能的L2交换机中，用于配置星型拓扑中的二层网络，网状拓扑，环形拓扑等，VLAN功能部分将帧映射到预定VLAN，帧分类部分分配给 构成指示优先级的第一标签，并且监管部分向该帧分配指示该帧是否可以被丢弃的第二标签。 另外，OAM监视器将监控帧插入VLAN。

公开(公告)号：US20050163132A1

公开(公告)日：2005-07-28

申请号：US11077303

申请日：2005-03-10

申请人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

发明人： Hironori Mieno ,  Youichi Konuma ,  Jyunichi Shimada ,  Koichi Saiki ,  Takashi Okuda ,  Takanori Sasaki

IPC分类号： H04L12/44 ,  H04L12/46 ,  H04L12/56

CPC分类号： H04L12/465

摘要： In an L2 switch having a VLAN function for configuring a layer 2 network in a star topology, a mesh topology, a ring topology, or the like, a VLAN functional portion maps a frame to a predetermined VLAN, a frame classifying portion assigns to the frame a first tag indicating a priority, and a policing portion assigns to the frame a second tag indicating whether or not the frame can be discarded. Also, an OAM monitor inserts a monitoring frame to the VLAN.

摘要翻译： 在具有VLAN功能的L2交换机中，用于配置星型拓扑中的二层网络，网状拓扑，环形拓扑等，VLAN功能部分将帧映射到预定VLAN，帧分类部分分配给 构成指示优先级的第一标签，并且监管部分向该帧分配指示该帧是否可以被丢弃的第二标签。 另外，OAM监视器将监控帧插入VLAN。

公开(公告)号：US07724653B2

公开(公告)日：2010-05-25

申请号：US11905376

申请日：2007-09-28

申请人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

发明人： Youichi Konuma ,  Koichi Saiki ,  Junichi Shimada ,  Akira Miyasaka

IPC分类号： H04J1/16

CPC分类号： H04L49/351 ,  H04L49/552 ,  H04L69/14 ,  H04L69/40 ,  Y02D50/30

摘要： A transmission device is connected to a layer 2 switch through a transmission path at one side, and to a relay transmission path at the other side. The transmission path includes a transmission path of a active system and a transmission path of a stand-by system. When failure occurs in the transmission path of the active system, the transmission device forcibly shuts down the transmission path of the active system upon detection of link down, to stop packet transmission, and causes the layer 2 switch to perform MAC address flush. The transmission device then switches the transmission path of the stand-by system to the active system, and transmits packets through the transmission path that has become the active system as a result of switching. The layer 2 switch performs MAC address learning to set a port, thereby maintaining communication even after occurrence of the failure.

摘要翻译： 传输设备通过一侧的传输路径和另一侧的中继传输路径连接到层2交换机。 传输路径包括有源系统的传输路径和备用系统的传输路径。 当主动系统的传输路径发生故障时，传输设备在检测到链路断开后强制关闭主用系统的传输路径，停止数据包传输，使第二层交换机执行MAC地址冲洗。 然后，发送装置将待机系统的传输路径切换到主动系统，并且作为切换的结果，通过已经成为主动系统的传输路径发送分组。 层2交换机执行MAC地址学习来设置端口，从而即使在发生故障后仍保持通信。

公开(公告)号：US07570673B2

公开(公告)日：2009-08-04

申请号：US11168377

申请日：2005-06-29

申请人： Noboru Iwabuchi ,  Takashi Okuda ,  Koichi Saiki ,  Youichi Konuma

发明人： Noboru Iwabuchi ,  Takashi Okuda ,  Koichi Saiki ,  Youichi Konuma

IPC分类号： H04L1/00

CPC分类号： H04J3/14 ,  H04J3/08 ,  H04J2203/006 ,  H04J2203/0067 ,  H04J2203/0071

摘要： An ADM device which is capable of performing LCAS functions, configures a first communication network, and is connected to another ADM device which is connected to a second communication network, comprising an SDH interface for connecting to the other ADM device by SDH connection, an H4 byte monitoring means for monitoring the H4 byte of POH in the SDH interface, an LCAS control information acquisition means for acquiring LCAS control information from the H4 byte monitored by the H4 byte monitoring means, and an LCAS control information transmission means for transmitting LCAS control information acquired by the LCAS control information acquisition means to the other ADM devices, thereby providing an ADM device and signal transmission method which comprises a function for efficiently handling sharp variations in traffic, promotes work efficiency of transmission capacity increase/decrease speed within ADM systems, and actualizes the facilitation of management.

摘要翻译： 能够执行LCAS功能的ADM设备配置第一通信网络，并且连接到连接到第二通信网络的另一个ADM设备，其包括用于通过SDH连接与另一ADM设备连接的SDH接口，H4 用于监视SDH接口中POH的H4字节的字节监视装置，用于从由H4字节监视装置监视的H4字节获取LCAS控制信息的LCAS控制信息获取装置，以及用于发送LCAS控制信息的LCAS控制信息发送装置 由LCAS控制信息获取装置获取到其他ADM装置，从而提供一种ADM装置和信号传输方法，其包括有效处理业务急剧变化的功能，提高ADM系统内的传输容量增减速度的工作效率， 实现管理的便利化。

公开(公告)号：US20060209861A1

公开(公告)日：2006-09-21

申请号：US11168377

申请日：2005-06-29

申请人： Noboru Iwabuchi ,  Takashi Okuda ,  Koichi Saiki ,  Youichi Konuma

发明人： Noboru Iwabuchi ,  Takashi Okuda ,  Koichi Saiki ,  Youichi Konuma

IPC分类号： H04L12/28 ,  H04J3/04 ,  H04L12/56 ,  H04J3/22 ,  H04J3/16

CPC分类号： H04J3/14 ,  H04J3/08 ,  H04J2203/006 ,  H04J2203/0067 ,  H04J2203/0071

摘要： An ADM device which is capable of performing LCAS functions, configures a first communication network, and is connected to another ADM device which is connected to a second communication network, comprising an SDH interface for connecting to the other ADM device by SDH connection, an H4 byte monitoring means for monitoring the H4 byte of POH in the SDH interface, an LCAS control information acquisition means for acquiring LCAS control information from the H4 byte monitored by the H4 byte monitoring means, and an LCAS control information transmission means for transmitting LCAS control information acquired by the LCAS control information acquisition means to the other ADM devices, thereby providing an ADM device and signal transmission method which comprises a function for efficiently handling sharp variations in traffic, promotes work efficiency of transmission capacity increase/decrease speed within ADM systems, and actualizes the facilitation of management.