| 摘要 |
A communications network having a multi-staged data filter system for selecting and matching filters to the information flow. The multi-staged data filter system operates to handle information flow by matching attributes of the information with filter arrays by conducting a search in accordance with a binary tree algorithm using a plurality of binary trees (90, 104), said binary trees (90, 104) constructed from a policy table containing a list of related filter arrays arranged in a particular sequence. The algorithm assembles a list (82) of filters for further selection according to a predetermined criteria. |
