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HASH-BASED PACKET CLASSIFICATION WITH MULTIPLE ALGORITHMS AT A NETWORK PROCESSOR
HASH-BASED PACKET CLASSIFICATION WITH MULTIPLE ALGORITHMS AT A NETWORK PROCESSOR
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机译:网络处理器上具有多种算法的基于哈希的分组分类
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摘要
A network processor has a “bi-level” architecture including a classification algorithm level and a single-record search level to search a hash database that stores packet classification information based on packet field values. The classification algorithm level implements multiple different classification algorithm engines, wherein the individual algorithm applied to a received packet can be selected based on a field of the packet, a port at which the packet was received, or other criteria. Each classification algorithm engine generates one or more single-record search requests to search the hash database for classification information based on one or more field values of the received packet or other classification parameters. Each single-record search requests is provided to the single-record search level, which executes the requests at the hash database and returns the corresponding record to the requesting classification algorithm engine.
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