| 摘要 |
Intelligent allocation of programmable comparison operations may reduce the number of associative memory entries required for programming an associative memory (e.g., ternary content-addressable memory) with multiple matching definitions (e.g., access control list entries, routing information, etc.), which may be particularly useful in identifying packet processing operations to be performed on packets in a packet switching device. The higher-cost comparison operations, in terms of the number of associative memory entries required to natively support such operations, are allocated to one or more comparison evaluators (e.g., programmable logic and/or processing elements configured to evaluate one or more comparison operations) configured to evaluate an input value with one or more of the programmable comparison operations in order to generate and provide one or more values representing results of the evaluations to one or more associative memories for use in identifying the packet processing operations.
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