Methods and apparatus for efficient transaction processing on redundant systems
    1.
    发明授权
    Methods and apparatus for efficient transaction processing on redundant systems 有权
    冗余系统高效交易处理方法与设备

    公开(公告)号:US06948088B1

    公开(公告)日:2005-09-20

    申请号:US09881443

    申请日:2001-06-13

    申请人: Ishita Sharan

    发明人: Ishita Sharan

    IPC分类号: G06F11/00

    摘要: Methods and apparatus are provided for performing efficient transaction processing. A working system processes transactions associated with nodes in a data network. The working system can store information such as, for example call state, accounting, subscriber, and/or session information. The working system identifies characteristics and/or relationship information corresponding to the various transactions to modify transaction information into condensed transaction information. The condensed transaction information can be provided to the redundant system coupled to the working system. Upon failover, the redundant system can use the condensed transaction information to maintain flows, such as, for example voice calls between network nodes.

    摘要翻译: 提供了用于执行有效的事务处理的方法和装置。 工作系统处理与数据网络中的节点相关联的事务。 工作系统可以存储例如呼叫状态,计费,订户和/或会话信息的信息。 工作系统识别与各种交易相对应的特征和/或关系信息,以将交易信息修改为精简交易信息。 可将精简交易信息提供给耦合到工作系统的冗余系统。 在故障转移时,冗余系统可以使用精简交易信息来维护流,例如网络节点之间的语音呼叫。

    Apparatus and methods for sniffing data in a cable head end
    2.
    发明授权
    Apparatus and methods for sniffing data in a cable head end 有权
    用于在电缆头端嗅探数据的装置和方法

    公开(公告)号:US07656877B1

    公开(公告)日:2010-02-02

    申请号:US09935238

    申请日:2001-08-21

    摘要: Disclosed are methods and apparatus for selectively filtering data messages that are communicated between a head end complex and its associated cable modems. Filtering includes obtaining a copy of the message and sending the copied message to a memory device. The memory device is accessible, for example, via a user so that the filtered message may be analyzed. In a preferred embodiment, the memory device is a monitoring device in the form of a computer system (e.g., a router). Messages may be filtered to the memory or monitoring device based on any suitable filtering criteria that identifies specific message parameters. In a specific embodiment, filtering may be based on one or more message types. When filtering criteria specifies a particular message type, messages having such a specified type are filtered to the monitoring station. Additionally or alternatively, filtering may be based on one or more values of a particular field of the message. For instance, when filtering criteria is set to a particular field value, messages that contains that particular field value are copied and sent to the monitoring device. Filtering may also or alternatively be based on whether a message is associated with the downstream channel, the upstream channel, or a particular port number.

    摘要翻译: 公开了用于选择性地过滤在头端复合体及其相关联的电缆调制解调器之间传送的数据消息的方法和装置。 过滤包括获得消息的副本并将复制的消息发送到存储器设备。 存储器设备例如可经由用户访问,以便可以分析经过滤的消息。 在优选实施例中,存储设备是计算机系统(例如,路由器)形式的监视设备。 可以基于识别特定消息参数的任何合适的过滤标准将消息过滤到存储器或监视设备。 在具体实施例中,过滤可以基于一种或多种消息类型。 当过滤条件指定特定的消息类型时,具有这种指定类型的消息被过滤到监控站。 另外或替代地,过滤可以基于消息的特定字段的一个或多个值。 例如,当将过滤条件设置为特定字段值时,将包含该特定字段值的消息复制并发送到监视设备。 过滤也可以或者替代地基于消息是否与下游信道,上行信道或特定端口号相关联。