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    • 6. 发明申请
    • Per-port penalty queue system for re-prioritization of network traffic sent to a processor
    • 用于重新优先发送到处理器的网络流量的每端口惩罚队列系统
    • US20070183416A1
    • 2007-08-09
    • US11350347
    • 2006-02-07
    • Mark GoochRobert FaulkBruce LaVigne
    • Mark GoochRobert FaulkBruce LaVigne
    • H04L12/56
    • H04L49/9063H04L45/30H04L45/60H04L49/90
    • In an embodiment of the invention, a method and system for a per-port penalty queue system in a network device includes: selecting a state for a port in the network device; wherein the selected state comprises either a normal state or a restricted state; wherein the normal state permits a packet received at the port to be copied to a first queue; and wherein the restricted state causes the packet to be copied to a penalty queue which has lower priority than the first queue or causes the packet to not be copied to a queue. In another embodiment of the invention, a method and system permit using the port state for modifying a forwarding decision for a packet, so that the penalized packet will use a sub-optimal or less optimal routing path to the packet destination. In another embodiment of the invention, a method and system permit using the port state as a search key into an access control list (ACL) operation related to packet forwarding decisions or packet filtering decisions.
    • 在本发明的一个实施例中,网络设备中的每端口处理队列系统的方法和系统包括:为网络设备中的端口选择状态; 其中所述选择状态包括正常状态或限制状态; 其中所述正常状态允许在所述端口处接收到的分组被复制到第一队列; 并且其中所述受限状态使得所述分组被复制到具有比所述第一队列低的优先级的惩罚队列,或者使得所述分组不被复制到队列。 在本发明的另一个实施例中,一种方法和系统允许使用端口状态来修改分组的转发决定,使得受惩罚的分组将使用到分组目的地的次优或不太优化的路由路径。 在本发明的另一个实施例中,方法和系统允许将端口状态用作搜索关键字进入与分组转发决定或分组过滤决策相关的访问控制列表(ACL)操作。
    • 7. 发明申请
    • Rate limiting of events
    • 速率限制事件
    • US20060036720A1
    • 2006-02-16
    • US10868093
    • 2004-06-14
    • Robert Faulk
    • Robert Faulk
    • G06F15/173
    • H04L41/0622H04L43/16H04L63/1458
    • In an embodiment, a method for rate limiting of events includes: monitoring and processing an event instance of an event type; and if a value of the event instance to be monitored meets or exceeds an associated suspension threshold value, then performing a user-defined action for the event instance. The method may also comprise resuming the suspended event instance. The suspended event instance may be resumed, for example, after a suspension time value has elapsed. Additionally or alternatively, the suspended event instance may be resumed, for example, after a value of the event instance falls below the resumption threshold value. In another embodiment, an apparatus for rate limiting of events includes: a rate limiter configured to monitor and process an event instance of an event type, and perform a user-defined action for the event instance, if a value of the event instance to be monitored exceeds an associated suspension threshold value.
    • 在一个实施例中,事件速率限制的方法包括:监视和处理事件类型的事件实例; 并且如果要监视的事件实例的值满足或超过相关联的暂停阈值,则对事件实例执行用户定义的动作。 该方法还可以包括恢复挂起的事件实例。 例如,在暂停时间值过去之后,可以恢复暂停的事件实例。 附加地或替代地,例如,在事件实例的值下降到恢复阈值之下之前,可以恢复挂起的事件实例。 在另一个实施例中,用于速率限制事件的装置包括:速率限制器,被配置为监视和处理事件类型的事件实例,并且对事件实例执行用户定义的动作,如果事件实例的值为 监视超过相关联的暂停阈值。