Abstract: In general, in one aspect, the disclosure describes a method of determining if a first query for data related to a protocol data unit in a first table is a query to a table merged into a combination table formed from multiple tables. If so, the method can generate a second query for the first query for data stored by the combination table.

Abstract: A method and apparatus for two-stage packet classification. In the first stage, which may be implemented in software, a packet is classified on the basis of the packet's network path and, perhaps, its protocol. In the second stage, which may be implemented in hardware, the packet is classified on the basis of one or more transport level fields of the packet. An apparatus of two-stage packet classification may include a processing system for first stage code execution, a classification circuit for performing the second stage of classification, and a memory to store a number of bins, each bin including one or more rules.

Abstract: A method and apparatus for two-stage packet classification, the two-stage packet classification scheme including a first stage and a second stage. In the first classification stage, a packet is classified on the basis of the packet's network path. In the second stage of classification, the packet is classified on the basis of one or more transport (or other) fields of the packet. Also disclosed are embodiments of most specific filter matching and transport level sharing, and either one or both of these techniques may be implemented in the two-stage classification method.

Abstract: In general, in one aspect, the disclosure describes a method of determining if a first query for data related to a protocol data unit in a first table is a query to a table merged into a combination table formed from multiple tables. If so, the method can generate a second query for the first query for data stored by the combination table.

Abstract: Computer executable logic is provided which comprises logic that extracts information and/or application front ends from a network or local resource; logic that manipulates and/or enhances extracted content to new looks and feels or with modified functionality; and logic that provides a mechanism by which complex transformations and applications can be constructed by composing any number of manipulation and extraction operations at run-time.