一种基于TCAM的双循环多匹配包分类引擎设计

Two-Cycle Design for Multi-Match Packet Classification Engine Based on TCAM

一般来说,传统的包分类引擎只能够找到一个给定数据包的最优匹配。然而,越来越多的新兴的网络业务都需要得到所有的匹配结果。文中介绍了一种基于TCAM的有效的多匹配分类引擎,仅用两次TCAM查表循环便能得到所有的匹配结果。

Generally speaking, conventional packet classifiers could only find the highest-priority filter that matches the given packet. However, more and more newly-emerged networking applications requires all matching results. This paper describes a valid multi match engine based on TCAM. This approach can find all the matching results with two TCAM cycles.