| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for managing a rule entry in a routing system by which memory capacitance of a routing table constituted of a ternary CAM and an auxiliary memory can be reduced. <P>SOLUTION: The routing system comprises: a ternary CAM for classifying rule entries into a reference rule entry having both basic information and priority information and a separate content rule entry having detailed information, and for storing the classified rule entries; and an auxiliary memory for storing interface bit map information and direction bit map information corresponding to the reference rule entry, and packet forwarding information corresponding to the content rule entry. Accordingly, when at least one rule having the same priority is applied to several interface packets, all rules can be expressed as only two entries, and the ternary CAM is effective in memory utilization. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
