K-byte extension and tunnel identifying scheme for tunnel-based shared mesh protection
    1.
    发明申请
    K-byte extension and tunnel identifying scheme for tunnel-based shared mesh protection 审中-公开
    基于隧道共享网格保护的K字节扩展和隧道识别方案

    公开(公告)号:US20050058060A1

    公开(公告)日:2005-03-17

    申请号:US10662314

    申请日:2003-09-16

    摘要: A method for permitting a network element to transmit to a second network element a message over a link, that identifies a tunnel segment occupying predefined proportion of the data transport on the link, and a status of the tunnel, so that each tunnel may be provided with independent protection switching messaging involves providing an identifying scheme for locally identifying the tunnels passing through the tunnel segment. In order to permit this information to be sent over existing (narrow) automatic protection switching (APS) channels, the identifying scheme only provides a local identifier of the tunnel. To permit extended messaging to include messages that do not fit in a single K-byte overhead, extension bits are used to identify continuation of a message across multiple frames.

    摘要翻译: 一种用于允许网络元件通过链路向第二网络元件发送消息的方法,该链路标识占据链路上的数据传输的预定比例的隧道段,以及隧道的状态,以便可以提供每个隧道 具有独立保护交换消息传递涉及提供用于本地识别穿过隧道段的隧道的识别方案。 为了允许通过现有(窄)自动保护交换(APS)信道发送该信息,识别方案仅提供隧道的本地标识符。 为了允许扩展消息传递包括不适合单个K字节开销的消息,扩展位用于标识跨多个帧的消息的延续。

    Apparatus and method for optical communication protection
    2.
    发明申请
    Apparatus and method for optical communication protection 有权
    光通信保护装置及方法

    公开(公告)号:US20050122899A1

    公开(公告)日:2005-06-09

    申请号:US11038206

    申请日:2005-01-21

    摘要: Protection techniques within optical communication networks are extremely important. An alternative to a line protection scheme, as most current optical communication networks use, is to utilize a path protection technique in which working and protection paths that are desired are assigned during network setup. During normal operations, only the working path is configured within the network elements' switch fabric with protection paths being left unconfigured. If a failure indication is detected in the working path by a network element, a protection entry within a routing table of the network element is looked up to determine protection switching data that is required to switch the data traffic to the pre-assigned protection path. This protection switching data is inserted within the path overhead for the data traffic so that it can be communicated to all of the network elements that require their switch fabrics reconfigured to establish the protection path of communications. This protection technique allows for similar switching speed to that of line switching protection such as BLSR designs, but with an increase in efficiency in terms of protection bandwidth.

    摘要翻译: 光通信网络中的保护技术非常重要。 线路保护方案的替代方案,正如大多数当前的光通信网络所使用的一样,是利用路径保护技术,其中在网络建立期间分配所期望的工作和保护路径。 在正常操作期间,只有工作路径被配置在网络元件的交换结构中,保护路径保持未配置。 如果通过网元在工作路径中检测到故障指示,则查找网元的路由表内的保护条目,以确定将数据业务切换到预先分配的保护路径所需的保护倒换数据。 该保护切换数据被插入到数据业务的路径开销内,使得其可以被传送到需要重新配置其交换结构的所有网络元件以建立通信的保护路径。 该保护技术允许与线路交换保护(例如BLSR设计)类似的切换速度,但是在保护带宽方面效率提高。

    Controlled calls in a transmission network
    3.
    发明授权
    Controlled calls in a transmission network 有权
    传输网络中的受控呼叫

    公开(公告)号:US07287081B1

    公开(公告)日:2007-10-23

    申请号:US10738896

    申请日:2003-12-17

    IPC分类号: G06F15/16

    摘要: Commands are shown and described that enable a user to manipulate a call connection for the purpose of maintaining links in a network. The Block command prevents new traffic from being added to an output port of a device in a connection. The Forced Restoration/Release of Forced Restoration command set may be used to service the working channel. The Lockout of Restoration/Release of Lockout commands provide an alternative method of servicing a working connection and preventing unnecessary generation of redundant connections in the network.

    摘要翻译: 显示和描述使用户能够操纵呼叫连接以维护网络中的链接的命令。 Block命令可防止将新流量添加到连接中设备的输出端口。 强制恢复/释放强制恢复命令集可用于维护工作通道。 锁定锁定/释放锁定命令提供了一种服务于工作连接并防止网络中不必要的冗余连接生成的替代方法。