Method and apparatus for providing internal table...

Details Method and apparatus for providing internal table... Method and apparatus for providing internal table...

2007-02-06

2007-02-06

Portka, Gary (Department: 2188)

Electrical computers and digital processing systems: memory

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C711S108000, C711S221000

Reexamination Certificate

active

10687785

ABSTRACT:
A configurable lookup table extension system including a plurality of lookup tables arranged in an internal memory, an external memory, and a flexible controller configured to couple at least one of the plurality of lookup tables to the external memory through a single memory interface is disclosed. Implementations of this system can support the flexible allocation of IP and MAC table entries so that a router/switch can flexibly support applications suited to a particular allocation. This approach provides an efficient scheme for extending multiple internal tables to external memory via a single external interface. Further, such extensibility is also programable to allow the size and number of external tables to be configured by software. This solution can provide the flexibility of customizing table sizes for different markets and/or customer requirements.

REFERENCES:
patent: 6473846 (2002-10-01), Melchior
patent: 6732184 (2004-05-01), Merchant et al.

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