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1. 发明公开

EP2525527A2 Network relay device and network relay method 失效转让
标题翻译： Netzweiterleitungsvorrichtung und Netzweiterleitungsverfahren
公开(公告)号：EP2525527A2
公开(公告)日：2012-11-21
申请号：EP12157476.8
申请日：2012-02-29
申请人： Alaxala Networks Corporation
发明人： Arai, Masaya
IPC分类号： H04L12/18 , H04L12/56 , H04L12/437
CPC分类号： H04L12/185 , H04L12/437 , H04L12/4641 , H04L45/16 , H04L45/28
摘要： A network relay device (10) relays data in a layer 2 network. The network relay device includes first and second communication ports (40), a snooping module, a transfer information storage unit, a multicast sending module, a failure detector and a port adding module. The snooping module generates snooping information. The snooping information correlates the first communication port (40-10,40-21,40-32,40-43) set to a multicast transfer port to a destination MAC address. The multicast sending module refers to the snooping information stored in the transfer information storage unit and sends a multicast frame received from the layer 2 network, from the correlated multicast transfer port. The failure detector detects a communication failure in the layer 2 network. The port adding module additionally, in response to detection of the communication failure by the failure detector, set the second communication port (40-34,40-41), in addition to the first communication port, to the multicast transfer port.
摘要翻译：网络中继设备（10）中继第2层网络中的数据。网络中继设备包括第一和第二通信端口（40），侦听模块，传输信息存储单元，组播发送模块，故障检测器和端口添加模块。 snooping模块生成窥探信息。侦听信息将设置的第一通信端口（40-10,40-21,40-32,40-43）与目的MAC地址相关联。组播发送模块参考存储在传输信息存储单元中的监听信息，从相关组播转发端口发送从第2层网络接收的组播帧。故障检测器检测第2层网络中的通信故障。端口添加模块另外，响应于故障检测器的通信故障的检测，除了第一通信端口之外，将第二通信端口（40-34,40-41）设置到多播传送端口。

2. 发明公开

EP2391073A1 Network system and network apparatus 审中-公开
标题翻译： Netzwerksystem und Netzwerkvorrichtung
公开(公告)号：EP2391073A1
公开(公告)日：2011-11-30
申请号：EP11167564.1
申请日：2011-05-26
申请人： Alaxala Networks Corporation
发明人： Kizawa, Masao , Arai, Masaya , Nozaki, Shinji
IPC分类号： H04L12/56
CPC分类号： H04L49/552 , H04L45/586 , H04L49/3009
摘要： In a virtual network apparatus, even when a fault occurs on a private line 112 connecting plural physical network apparatuses 101, 102 to communicate a control signal, the redundancy is maintained, and the lower forwarding capability is prevented. In this network system, a control signal for virtualization to be transmitted and received between plural physical network apparatuses 101, 102 is relayed via a unit spanning LA connecting each physical network apparatus 101, 102 and an adjacent network apparatus 119 in the adjacent network apparatus. Thereby, even when a fault occurs in the private line 112, it is possible to continue to communicate the control signal between the physical network apparatuses 101, 102 and continuously operate the virtual network apparatus.
摘要翻译：在虚拟网络装置中，即使在连接多个物理网络装置101,102的专用线路112发生故障而发送控制信号的情况下，也能够维持冗余，防止较低的转发能力。在该网络系统中，在多个物理网络装置101,102之间发送和接收用于虚拟化的控制信号经由连接相邻网络装置中的每个物理网络装置101,102和相邻网络装置119的跨越LA的单元进行中继。由此，即使在专线112发生故障的情况下，也可以继续在物理网络装置101,102之间通信控制信号，并连续运行虚拟网络装置。

3. 发明授权

EP2525527B1 Network relay device and network relay method 失效转让
标题翻译：网络中继装置和网络路由选择方法
公开(公告)号：EP2525527B1
公开(公告)日：2016-11-23
申请号：EP12157476.8
申请日：2012-02-29
申请人： ALAXALA Networks Corporation
发明人： Arai, Masaya
IPC分类号： H04L12/18 , H04L12/437 , H04L12/46 , H04L12/703 , H04L12/761
CPC分类号： H04L12/185 , H04L12/437 , H04L12/4641 , H04L45/16 , H04L45/28

4. 发明公开

EP2525527A3 Network relay device and network relay method 失效转让
标题翻译：网络中继装置和网络路由选择方法
公开(公告)号：EP2525527A3
公开(公告)日：2013-03-13
申请号：EP12157476.8
申请日：2012-02-29
申请人： Alaxala Networks Corporation
发明人： Arai, Masaya
IPC分类号： H04L12/18 , H04L12/56 , H04L12/437
CPC分类号： H04L12/185 , H04L12/437 , H04L12/4641 , H04L45/16 , H04L45/28
摘要： A network relay device (10) relays data in a layer 2 network. The network relay device includes first and second communication ports (40), a snooping module, a transfer information storage unit, a multicast sending module, a failure detector and a port adding module. The snooping module generates snooping information. The snooping information correlates the first communication port (40-10,40-21,40-32,40-43) set to a multicast transfer port to a destination MAC address. The multicast sending module refers to the snooping information stored in the transfer information storage unit and sends a multicast frame received from the layer 2 network, from the correlated multicast transfer port. The failure detector detects a communication failure in the layer 2 network. The port adding module additionally, in response to detection of the communication failure by the failure detector, set the second communication port (40-34,40-41), in addition to the first communication port, to the multicast transfer port.

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