Lecture9 - COP 5611 Operating Systems Spring 2010 Dan C....

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COP 5611 Operating Systems Spring 2010 Dan C. Marinescu Office: HEC 439 B Office hours: M-Wd 2:00-3:00 PM
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2 Lecture 9 Reading Assignment: Chapter 7 from the online textbook HW1 due today. Remember: A progress report for the project is due on every Monday till week 12. Last time: Thread coordination and scheduling Multi-level memories I/O bottleneck Today: Network properties Layering Data link layer Next time Network layer
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3 Properties of Networks Physical limitations: Speed of light finite communication latency Hostile environments Limited channel capacity limited bandwidth Channels are shared - multiplexed Why: Support any-to-any communication Share costs How Isochronous multiplexing – scheduled access TDM FDM Asynchronous multiplexing
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4 Boston Switch Los Angeles Switch multiplexed link shared switches B1 B2 B3 L1 L2 L3 L4 Communication channels are multiplexed
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5 Time 5,624 bit times 8-bit frame 8-bit frame 8-bit frame Data flow on an isochronous link
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This note was uploaded on 05/12/2010 for the course CS COP5611 taught by Professor Dancristianmarinescu during the Spring '10 term at University of Central Florida.

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Lecture9 - COP 5611 Operating Systems Spring 2010 Dan C....

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