Mar23 - CSE398 Network Systems Design Instructor Dr Liang...

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Unformatted text preview: CSE398: Network Systems Design Instructor: Dr. Liang Cheng Department of Computer Science and Engineering P.C. Rossin College of Engineering & Applied Science Lehigh University March 23, 2005 Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Outline ¡ Recap ¡ Complexity of network processor design ¡ Lab time log ¡ Network processor architectures ¡ Summary and homework Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Network Processor Architectures ¡ Primary architecture characteristics ¡ Packet flow ¡ Software architecture ¡ Assigning functionality to processor hierarchy Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Primary Characteristics ¡ Processor hierarchy ¡ Memory hierarchy ¡ Internal transfer mechanisms ¡ External interface and communication mechanisms ¡ Special-purpose hardware ¡ Polling and notification mechanisms ¡ Concurrent and parallel execution support ¡ Programming model and paradigm ¡ Hardware and software dispatch mechanisms Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Processing Hierarchy ¡ One or more embedded RISC processors ¡ One or more specialized coprocessors ¡ Multiple I/O processors ¡ One or more fabric interfaces ¡ One or more data transfer units Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Processor Hierarchy – Cont’d ¡ Type Programmable? On Chip? ¡ General purpose CPU y possible ¡ Embedded processor y typical ¡ I/O processor y t ¡ Coprocessor n t ¡ Fabric interface n t ¡ Data transfer unit n t ¡ Framer n possible ¡ Physical transmitter n possible Instructor: Dr. Liang Cheng CSE398: Network Systems Design 03/23/05 Memory Hierarchy ¡ Memory measurements ¡ Random access latency ¡ Sequential access latency ¡ Throughput ¡ Cost ¡ Internal ¡ External Instructor: Dr. Liang ChengInstructor: Dr....
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This note was uploaded on 08/06/2008 for the course CSE 398 taught by Professor Cheng during the Spring '05 term at Lehigh University .

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Mar23 - CSE398 Network Systems Design Instructor Dr Liang...

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