Context switched route lookup key engine

Details Context switched route lookup key engine Context switched route lookup key engine

2008-05-15

2010-12-21

Ismail, Shawki S (Department: 2455)

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

C709S223000, C712S228000, C712S229000

Reexamination Certificate

active

07856510

ABSTRACT:
A key engine that performs route lookups for a plurality of keys may include a data processing portion configured to process one data item at a time and to request data when needed. A buffer may be configured to store a partial result from the data processing portion. A controller may be configured to load the partial result from the data processing portion into the buffer. The controller also may be configured to input another data item into the data processing portion for processing while requested data is obtained for a prior data item. A number of these key engines may be used by a routing unit to perform a large number of route lookups at the same time.

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Co-pending U.S. Appl. No. 09/985,676, filed Nov. 5, 2001, entitled “Context Switched Route Lookup Key Engine,” Pankaj Patel et al.

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