Cache table management device for router and program...

Details Cache table management device for router and program... Cache table management device for router and program...

2006-01-31

2006-01-31

Yao, Kwang Bin (Department: 2667)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S428000

Reexamination Certificate

active

06993031

ABSTRACT:
A cache table management device for raising the cache hit probability for entries inserted in groups between a forwarding table103and cache102. A forwarding table103stores the priority level of entries inserted and extracted in a cache102. A packet processing circuit101extracts the destination address from the received packet, searches the packet using the destination address, and searches the forwarding table if no hits occur. The hit database104stores the contents of the forwarding table for all forwarding table entries, as well as rating values for the cache usage status. An entry selection device105refers to the hit database when an entry must be added or deleted between the forwarding table and the cache, and selects the corresponding entry group. That determination is made utilizing typical values for attributes of the priority level such as the average bit rate of each entry group.

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