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Patent Title: Method and apparatus for providing connection identifier by concatenating CAM's addresses at which containing matched protocol information extracted from multiple protocol header

Assignee: IBM
Patent Number: US5684954
Issue Date: 11-04-1997
Application Number:
File Date:08-09-1995

Abstract: The present application concerns a method and an apparatus, in a communication network, for processing the various fields of a protocol header preceding a data stream to provide a unique connection identifier for processing the data stream. All relevant protocol information is extracted from the protocol header for look up in a Content-Addressable Memory (CAM) (80). Each time an entry in the CAM (80) matches protocol information applied to the CAM's input (84), the CAM address of this storage section, i.e. the address of a row of the CAM (80), is provided at the output (82) thereof. The CAM addresses obtained from the protocol header are concatenated by means of a Connection Number Builder (CNB, 95) resulting in a unique connection identifier provided at the Protocol Filter's output (96) to be used for the processing of the data stream.

Notes:

Link to USPTO

IBM Pledge dated 1/11/2005