Sept20 - CSE/ECE404: Computer Networks Instructor: Dr....

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CSE/ECE404: Computer Networks Instructor: Dr. Liang Cheng Department of Computer Science and Engineering Lehigh University September 20, 2007
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Instructor: Dr. Liang Cheng CSE/ECE404: Computer Networks 09/20/07 Outline ± Recap ± CRC ± Ethernet ± Token ring ± Summary and homework
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Instructor: Dr. Liang Cheng CSE/ECE404: Computer Networks 09/20/07 Ethernet Frame ± ± 14 byte header ± Unique Ethernet address belongs to each adaptor ± Body: from 46 bytes to 1500 bytes ± Type as demultiplexing key or length field
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Instructor: Dr. Liang Cheng CSE/ECE404: Computer Networks 09/20/07 Ethernet Address ± Ethernet address ± 48-bit unicast address (24-bit assigned prefix), e.g., 8:0:2b:e4:b1:2 ± Promiscuous mode ± Broadcast: all 1 s ± Multicast: first bit is 1
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Instructor: Dr. Liang Cheng CSE/ECE404: Computer Networks 09/20/07 Transmitter Algorithm in MAC ± If line is idle ± Send immediately ± Upper bound message size of 1500 bytes
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This note was uploaded on 08/06/2008 for the course CSE 404 taught by Professor Cheng during the Fall '07 term at Lehigh University .

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Sept20 - CSE/ECE404: Computer Networks Instructor: Dr....

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