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    • 11. 发明授权
    • Dual use counters for routing loops and spam detection
    • 用于路由环路和垃圾邮件检测的双重使用计数器
    • US07725545B2
    • 2010-05-25
    • US10781913
    • 2004-02-20
    • Thilo RuscheDerek Hung Kit TamRobert C. Lovell, Jr.
    • Thilo RuscheDerek Hung Kit TamRobert C. Lovell, Jr.
    • G06F15/16
    • H04L51/12
    • A method for detecting an undesirable condition within a messaging network. A message is received and a source of the message is identified. If an entry in a database for the source has not been created, an entry is created. A source counter for the source is then set to one and a timestamp is created for the source. If an entry in the database for the source has been previously created, the source counter is incremented by one and the timestamp is updated. The source counter is then compared to a source threshold, and if the source counter exceeds the source threshold over the course of predetermined amount of time, a source alarm is triggered. A sliding with respect to the predetermined amount of time may also be implemented to account for total counts that may fall across or be split by set periods of time. The invention is particularly useful for detecting “spam” events and undesirable routing loops.
    • 一种用于检测消息传递网络内的不期望状况的方法。 接收到一条消息,并标识该消息的源。 如果尚未创建源的数据库中的条目,则会创建一个条目。 然后将源的源计数器设置为1,并为源创建时间戳。 如果源的数据库中的条目先前已创建,则源计数器将增加1,并更新时间戳。 然后将源计数器与源阈值进行比较,并且如果源计数器在预定时间段的过程中超过源阈值,则触发源警报。 也可以实现相对于预定时间量的滑动以考虑可能落在一段时间内或被设定的时间段分割的总计数。 本发明对于检测“垃圾邮件”事件和不期望的路由环路特别有用。