Network system and network relay apparatus
    1.
    发明授权
    Network system and network relay apparatus 有权
    网络系统和网络中继设备

    公开(公告)号:US08489913B2

    公开(公告)日:2013-07-16

    申请号:US12841532

    申请日:2010-07-22

    Abstract: The network system is provided. The network system includes: a first processing apparatus configured to provide a specific service; a second processing apparatus configured to provide the specific service, the first processing apparatus and the second processing apparatus having one identical address; a client apparatus configured to utilize the specific service; and a network relay apparatus connected directly or indirectly via interfaces to the first processing apparatus, the second processing apparatus, and the client apparatus and configured to relay packet transmission between the client apparatus and the first processing apparatus or the second processing apparatus, wherein the network relay apparatus forwards a received packet, which is received via the interface connecting with the client apparatus to be sent to the address as a destination, to one processing apparatus in a state enabled to provide the specific service between the first processing apparatus and the second processing apparatus.

    Abstract translation: 提供网络系统。 网络系统包括:第一处理装置,被配置为提供特定服务; 第二处理装置,被配置为提供特定服务,第一处理装置和第二处理装置具有一个相同的地址; 配置为利用所述特定服务的客户端装置; 以及网络中继装置,其通过与第一处理装置,第二处理装置和客户端装置的接口直接或间接连接,并且被配置为在客户端装置与第一处理装置或第二处理装置之间转发分组传输,其中,网络 中继装置将接收到的分组,经由与要发送到作为目的地的地址的客户机装置连接的接口接收到能够在第一处理装置和第二处理之间提供特定服务的状态的一个处理装置 仪器。

    Network relay device and network relay method
    3.
    发明授权
    Network relay device and network relay method 有权
    网络中继设备和网络中继方式

    公开(公告)号:US08854949B2

    公开(公告)日:2014-10-07

    申请号:US13399296

    申请日:2012-02-17

    Applicant: Masaya Arai

    Inventor: Masaya Arai

    Abstract: A network relay device relays data in a layer 2 network. The network relay device includes first and second communication ports, 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 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, in addition to the first communication port, to the multicast transfer port.

    Abstract translation: 网络中继设备中继二层网络中的数据。 网络中继装置包括第一和第二通信端口,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。 侦听信息将第一通信端口设置为组播传输端口与目的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,并从相关组播转发端口发送从第2层网络接收到的组播帧。 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,响应于由故障检测器检测到通信故障,除了第一通信端口之外,将第二通信端口设置到多播传送端口。

    Data communication system and method for preventing packet proliferation in a multi-device link aggregate network
    4.
    发明授权
    Data communication system and method for preventing packet proliferation in a multi-device link aggregate network 有权
    用于防止多设备链路聚合网络中的分组增长的数据通信系统和方法

    公开(公告)号:US08208464B2

    公开(公告)日:2012-06-26

    申请号:US12623583

    申请日:2009-11-23

    CPC classification number: H04L45/22 H04L45/28 H04L49/354 H04L49/552

    Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the first edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

    Abstract translation: 提供商边缘PE3复制接收到的分组,并将它们中继到虚拟电路VC1,VC2,并且提供商边缘PE2,PE2分别接收来自虚拟电路VC1,VC2的分组,由此提供者边缘PE2,PE2基于 它们之间的协议决定处理接收到的数据包,使得第一个边缘之一将数据包中继到客户端CE1以转发到主机A,而另一个边缘丢弃数据包而不将其转发到客户端CE1。

    Forwarding Apparatus, Forwarding Method, and Computer Program Product
    5.
    发明申请
    Forwarding Apparatus, Forwarding Method, and Computer Program Product 有权
    转发装置,转发方法和计算机程序产品

    公开(公告)号:US20100080235A1

    公开(公告)日:2010-04-01

    申请号:US12493360

    申请日:2009-06-29

    CPC classification number: H04L45/00 H04L45/54 H04L45/66

    Abstract: An extranet direct route allowing extranet forwarding to a directly linked device is written in a layer 2-layer 3-integrated forwarding table. The procedure of introducing a layer 3 address-to-layer 2 address correspondence relation table entry into the layer 2-layer 3-integrated forwarding table searches the layer 2-layer 3-integrated forwarding table with a layer 3 address of the correspondence relation table entry and a layer 3 interface as search keys to retrieve any forwarding entry relating to an extranet direct route as a forwarding destination. The procedure subsequently extracts a VRF of each retrieved forwarding entry and introduces the correspondence relation table entry for the extracted VRF into the layer 2-layer 3-integrated forwarding table.

    Abstract translation: 外部网直接路由允许外部网转发到直连链路的设备被写入第2层3集成转发表。 将第3层地址对地址对应关系表项引入到第2层3集成转发表中的过程,在第2层3综合转发表中搜索对应关系表的第3层地址 条目和第3层接口作为搜索键,以检索与外部网直接路由相关的任何转发条目作为转发目的地。 该过程随后提取每个检索到的转发条目的VRF,并将提取的VRF的对应关系表条目引入到第2层3综合转发表中。

    Data communication system and method for preventing packet proliferation in a multi-device link aggregation network
    6.
    发明授权
    Data communication system and method for preventing packet proliferation in a multi-device link aggregation network 有权
    用于防止多设备链路聚合网络中的分组增长的数据通信系统和方法

    公开(公告)号:US07646769B2

    公开(公告)日:2010-01-12

    申请号:US11452304

    申请日:2006-06-14

    CPC classification number: H04L45/22 H04L45/28 H04L49/354 H04L49/552

    Abstract: A Provider Edge PE3 replicates a received packet and relays these to virtual circuits VC1, VC2 respectively, and Provider Edges PE2, PE2 respectively receive the packets from the virtual circuits VC1, VC2, whereupon the Provider Edges PE2, PE2, on the basis of an agreement between them, decide to handle the received packets such that one of the edges relays the packet to a Customer Edge CE1 for forwarding to a Host A, while the other edge discards the packet without relaying it to the Customer Edge CE1.

    Abstract translation: 提供商边缘PE3复制接收到的分组,并将它们中继到虚拟电路VC1,VC2,提供者边缘PE2,PE2分别接收来自虚拟电路VC1,VC2的分组,由此提供者边缘PE2,PE2基于 它们之间的协议决定处理接收到的数据包,使其中一个边缘将数据包中继到客户端CE1以转发到主机A,而另一个边缘丢弃数据包而不将其中继到客户端CE1。

    Network apparatus and method for forwarding packet
    8.
    发明授权
    Network apparatus and method for forwarding packet 有权
    用于转发数据包的网络设备和方法

    公开(公告)号:US07715407B2

    公开(公告)日:2010-05-11

    申请号:US11487347

    申请日:2006-07-17

    Abstract: When a network apparatus of this invention receives an IEEE 802.3ad link application control packet from a subscriber line with a VPWS function, it processes the packet in a control unit without relaying the packet by VPWS. More specifically, the network apparatus receives an IEEE802.3ad link aggregation control packet along with receiving an IEEE802.3x flow control packet. The network apparatus transmits a link aggregation control packet. The network apparatus also relays other layer 2 control protocol packets without receiving them, and does not transmit the other layer 2 control protocol packets.

    Abstract translation: 当本发明的网络装置从具有VPWS功能的用户线路接收到IEEE 802.3ad链路应用控制分组时,处理控制单元中的分组,而不用VPWS中继分组。 更具体地,网络装置接收IEEE802.3ad链路聚合控制分组以及接收IEEE802.3x流量控制分组。 网络装置发送链路聚合控制分组。 网络设备也不接收其他层2控制协议报文,不发送其他层2控制协议报文。

    Network apparatus and method for forwarding packet
    9.
    发明申请
    Network apparatus and method for forwarding packet 有权
    用于转发数据包的网络设备和方法

    公开(公告)号:US20070195795A1

    公开(公告)日:2007-08-23

    申请号:US11487347

    申请日:2006-07-17

    Abstract: When a network apparatus of this invention receives an IEEE 802.3ad link application control packet from a subscriber line with a VPWS function, it processes the packet in a control unit without relaying the packet by VPWS. More specifically, the network apparatus receives an IEEE802.3ad link aggregation control packet along with receiving an IEEE802.3x flow control packet. The network apparatus transmits a link aggregation control packet. The network apparatus also relays other layer 2 control protocol packets without receiving them, and does not transmit the other layer 2 control protocol packets.

    Abstract translation: 当本发明的网络装置从具有VPWS功能的用户线路接收到IEEE 802.3ad链路应用控制分组时,处理控制单元中的分组,而不用VPWS中继分组。 更具体地,网络装置接收IEEE802.3ad链路聚合控制分组以及接收IEEE802.3x流量控制分组。 网络装置发送链路聚合控制分组。 网络设备也不接收其他层2控制协议报文,不发送其他层2控制协议报文。

    Data communication device and the method thereof
    10.
    发明申请
    Data communication device and the method thereof 有权
    数据通信装置及其方法

    公开(公告)号:US20070171817A1

    公开(公告)日:2007-07-26

    申请号:US11471656

    申请日:2006-06-21

    Abstract: When the provider edge PE1 detects the occurrence of a failure at the access line AL1, it sends the label withdraw message to the virtual circuit VC1, and when the provider edge PE2 receives the label withdraw message sent via the virtual circuit VC1, the access line AL2 is put to a link down state, and when the customer edge CE2 detects the link down state of the access line AL2, it switches from the normal path to the redundant path.

    Abstract translation: 当提供商边缘PE 1检测到接入线路AL1发生故障时,它向虚拟电路VC 1发送标签提取消息,并且当提供商边缘PE 2接收到经由虚拟电路VC发送的标签提取消息时 如图1所示,接入线路AL2处于链路断开状态,当客户端CE2检测到接入线路AL2的链路断开状态时,从正常路径切换到冗余路径。

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