Redundant network implementation method
    1.
    发明授权
    Redundant network implementation method 有权
    冗余网络实现方法

    公开(公告)号:US09432250B2

    公开(公告)日:2016-08-30

    申请号:US14370898

    申请日:2012-02-29

    摘要: Disclosed is a method of implementing a redundant network. Ring network nodes in an initial state are set as master stations, ring ports are set in a half-blocked state, a master station election notification message is broadcast to the ring ports within a preset time interval, the nodes receive the master station election notification message, a node quality comparison vector is compared with node quality comparison vectors of the nodes to elect a master and standby stations, one of the ring ports is in the half-blocked state, the other ring ports are in a forwarding state, the master station broadcasts the master station election notification message to the ring ports, the standby master station stops sending the master station election notification message, the ring ports are in the forwarding state, and the message sent by the master station is received.

    摘要翻译: 公开了一种实现冗余网络的方法。 处于初始状态的环网节点设置为主站,环形端口设置为半阻塞状态,主站选通通知消息在预设时间间隔内向环形端口广播,节点接收主站选通知 将节点质量比较向量与节点的节点质量比较向量进行比较,选择主站和备站,其中一个环形端口处于半阻塞状态,其他环形端口处于转发状态,主站 主站向环形端口广播主站选举通知消息,备用主站停止发送主站选举通知消息,环端口处于转发状态,并接收主站发送的消息。

    Method and apparatus for selecting passive port of transparent clock node based on PTP
    3.
    发明授权
    Method and apparatus for selecting passive port of transparent clock node based on PTP 有权
    基于PTP选择透明时钟节点的被动端口的方法和装置

    公开(公告)号:US09363206B2

    公开(公告)日:2016-06-07

    申请号:US14350021

    申请日:2012-05-29

    摘要: Provided are a transparent clock passive port election method and device based on the PTP protocol. In the method, by extracting the TLV field of a received announce message, a first port of a network device acquires the clock identification information, forwarding times information and port identification information carried in the TLV field, and then compares the forwarding times information and clock identification information carried in the TLV field to the forwarding times information carried in the TLV field contained in a received announce message from a port by itself, and its own clock identification information, so as to select a port as a passive port. Therefore, by adding the comparison factors, such as clock identification information, forwarding times information and port identification information, in the TLV field of an announce message, a transparent clock is allowed to support the PTP protocol, thus avoiding a protocol storm formed by a PTP message in a complex topology network and a ring network constituted by the transparent clock to improve the stability of the network.

    摘要翻译: 提供基于PTP协议的透明时钟被动端口选择方法和设备。 在该方法中,通过提取接收到的通知消息的TLV字段,网络设备的第一端口获取TLV字段中携带的时钟识别信息,转发时间信息和端口识别信息,然后比较转发时间信息和时钟 在TLV字段中承载的识别信息与从端口本身接收到的通告消息中包含的TLV字段中携带的转发时间信息及其自己的时钟识别信息,以便选择端口作为被动端口。 因此,通过在通知消息的TLV字段中添加诸如时钟识别信息,转发时间信息和端口识别信息的比较因子,允许透明时钟支持PTP协议,从而避免由 PTP消息在一个复杂的拓扑网络和一个环形网络中构成的透明时钟来提高网络的稳定性。