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    • 6. 发明申请
    • SYSTEM, APPARATUS AND METHODS TO IMPLEMENT HIGH-SPEED NETWORK ANALYZERS
    • 系统,设备和实现高速网络分析仪的方法
    • US20100281160A1
    • 2010-11-04
    • US12770649
    • 2010-04-29
    • Jordi Ros-GiraltPeter SzilagyiJames EzickDavid E. WohlfordRichard A. Lethin
    • Jordi Ros-GiraltPeter SzilagyiJames EzickDavid E. WohlfordRichard A. Lethin
    • G06F15/16G06F15/18
    • H04L43/18H04L63/1408H04L63/1416
    • Systems, apparatus and methods for the implementation of high-speed network analyzers are provided. A set of high-level specifications is used to define the behavior of the network analyzer emitted by a compiler. An optimized inline workflow to process regular expressions is presented without sacrificing the semantic capabilities of the processing engine. An optimized packet dispatcher implements a subset of the functions implemented by the network analyzer, providing a fast and slow path workflow used to accelerate specific processing units. Such dispatcher facility can also be used as a cache of policies, wherein if a policy is found, then packet manipulations associated with the policy can be quickly performed. An optimized method of generating DFA specifications for network signatures is also presented. The method accepts several optimization criteria, such as min-max allocations or optimal allocations based on the probability of occurrence of each signature input bit.
    • 提供了实现高速网络分析仪的系统,设备和方法。 一组高级规范用于定义编译器发出的网络分析仪的行为。 在不牺牲处理引擎的语义能力的情况下,呈现了优化的内联工作流来处理正则表达式。 优化的分组分派器实现由网络分析器实现的功能的子集,提供用于加速特定处理单元的快速和慢速路径工作流。 这样的调度设备也可以用作策略的缓存,其中如果发现策略,则可以快速执行与策略相关联的分组操纵。 还提出了一种为网络签名生成DFA规范的优化方法。 该方法接受几个优化标准,例如基于每个签名输入位发生概率的最小 - 最大分配或最优分配。