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    Multiple fault tackling system and shared link terminal device
    51.
    发明专利
    Multiple fault tackling system and shared link terminal device 有权
    多重故障打包系统和共享链接终端设备

    公开(公告)号：JP2009027433A

    公开(公告)日：2009-02-05

    申请号：JP2007188223

    申请日：2007-07-19

    Applicant: Alaxala Networks Corp ,  アラクサラネットワークス株式会社

    Inventor： YOSHIMARU OKAHIRO

    IPC: H04L12/437

    CPC classification number: H04L41/069 ,  H04L12/437 ,  H04L43/0811

    Abstract: PROBLEM TO BE SOLVED: To detect multiple fault occurrences and continue communication without increasing the number of passing repeaters of a supervisory frame even when faults occur respectively in a shared link portion and a non-shared link portion on a ring which monitors a shared link in a multi-ring structure. SOLUTION: In a communication network containing a repeater, a monitoring device and a shared link terminal device, when a link fault is detected, each device sends a fault detection frame into a ring upon fault occurrence, and delivers link fault information to shared link terminal devices 1102, 1108. The shared link terminal devices 1102, 1108 produce a link fault information management database, and determine the presence of multiple faults. When it is determined that there are multiple faults, sending complementary monitoring frames 1113, 1114 is stopped. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：即使在环路上的共享链路部分和非共享链路部分中分别发生故障时，也可以检测多个故障发生并继续通信，而不增加监控帧的通过中继器的数量， 多环结构中的共享链路。 解决方案：在包含中继器，监控设备和共享链路终端设备的通信网络中，当检测到链路故障时，每个设备在故障发生时将故障检测帧发送到环中，并将链路故障信息传递到 共享链路终端设备1102,1108。共享链路终端设备1102,1108产生链路故障信息管理数据库，并确定多个故障的存在。 当确定存在多个故障时，发送补充监视帧1113,1114停止。 版权所有（C）2009，JPO＆INPIT

    Rpr node device, fairness control method, and rpr communication system
    55.
    发明专利
    Rpr node device, fairness control method, and rpr communication system 有权
    RPR节点设备，FAIRNESS控制方法和RPR通信系统

    公开(公告)号：JP2008244748A

    公开(公告)日：2008-10-09

    申请号：JP2007081401

    申请日：2007-03-27

    Applicant: Nec Corp ,  日本電気株式会社

    Inventor： TSUCHIYA MASAHIKO

    IPC: H04L12/42

    CPC classification number: H04L12/42 ,  H04L12/437 ,  H04L47/10 ,  H04L47/50 ,  H04L47/623

    Abstract: PROBLEM TO BE SOLVED: To execute a fairness guarantee of communication traffic executed in an RPR (Resilient Packet Ring.IEEE802. 17) ring even in an inter-ring connection. SOLUTION: Respective pieces of information of a transmission source address, a service class, a fairness bit and a ring transfer direction as well as transmission weight control information to be used for fairness control from RPR control information of an arrival packet are extracted, packets with a fairness bit being "0" are temporarily stored in an output queue in each different service class, packets with a fairness bit being "1" are weighted on the basis of the transmission weight control information and temporarily stored in an output queue in each different transmission source and ring transfer direction, and packet reading from the output queue in the each different class is performed more preferentially than packet reading from the output queue in the each different transmission source and ring transfer direction. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：为了执行在RPR（弹性分组Ring.IEEE802.17）中执行的通信流量的公平性保证，即使在环际间连接中也是如此。 解决方案：提取传输源地址，服务类别，公平位和环传送方向的信息以及用于从到达分组的RPR控制信息进行公平控制的传输权重控制信息 将公平位为“0”的数据包临时存储在每个不同业务类别的输出队列中，公平性为“1”的数据包根据发送权重控制信息进行加权，并临时存储在输出队列中 在每个不同的传输源和环传送方向上，并且从每个不同传输源和环传送方向上的输出队列中的分组读取更优先地执行来自每个不同类中的输出队列的分组读取。 版权所有（C）2009，JPO＆INPIT

    Device constituting ring network
    58.
    发明专利
    Device constituting ring network 有权
    设备构成环网

    公开(公告)号：JP2008136013A

    公开(公告)日：2008-06-12

    申请号：JP2006321021

    申请日：2006-11-29

    Applicant: Alaxala Networks Corp ,  アラクサラネットワークス株式会社

    Inventor： SAKURAI HIROTO

    IPC: H04L12/42 ,  H04L12/437

    CPC classification number: H04L12/437 ,  H04L25/20 ,  H04L43/0805 ,  H04L43/0823 ,  H04L43/0876 ,  H04L43/10 ,  H04L49/30

    Abstract: PROBLEM TO BE SOLVED: To provide a device for achieving high-speed path switching and flexible network construction by connecting a plurality of ring networks. SOLUTION: A monitoring device and the other repeaters are configured as devices constituting a ring network. The monitoring device monitors only a ring state of a ring network to which the monitoring device itself belongs. The monitoring device periodically transmits respective health check frames from a ring port and monitors whether a ring port at the opposite side receives the health check frames. In the configuration of a multi-ring network with a shared link, two shared devices respectively and periodically transmit an auxiliary health check frame to a monitoring device of a shared link non-monitoring ring. The monitoring device monitors the auxiliary check frame as well as the health check frame to thereby prevent a loop that spreads over a plurality of ring networks. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种通过连接多个环网来实现高速路径切换和灵活网络构建的装置。

    解决方案：监控设备和其他中继器配置为构成环网的设备。 监控设备仅监视监控设备本身所属环网的环状态。 监测装置周期性地从环形端口发送健康检查帧，并监视相对侧的环形端口是否接收健康检查帧。 在具有共享链路的多环网络的配置中，两个共享设备分别周期性地向共享链路非监控环的监控设备发送辅助健康检查帧。 监视设备监视辅助检查帧以及健康检查帧，从而防止在多个环网上扩展的环路。 版权所有（C）2008，JPO＆INPIT

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