ETHERNET PACKET STRUCTURE Preamble Ethernet Address of Destination Ethernet Address of Sender Packet Length Message Data Error Checking Information 64 bits 48 bits 48 bits 16 bits 368-12K bits 32 bits PREAMBLE IS JUST A SEQUENCE OF 01010...0101 USED TO SYNCRHONIZE RECEIVER'S CLOCK. ETHERNET ADDRESSES ARE 48 DIGIT BINARY NUMBERS (THIS MACHINE IS 00:05:02:75:7C:68 OR 00000000,00000101,00000010,01110101,01111100,01101000)

The Web: Technologies and Techniques Links to other course pages: CS 105 Home Page CS 105 Lecture Schedule CS 105 On-line Discussion Group: All discussions Discussion relating to this lecture topic Williams College Department of Computer Science

This page is part of a section of lecture slides related to " An Internet Protocol " within the topic "Internetworking and the Internet". Other slides within this section and other sections of slides for the topic "Internetworking and the Internet" can be accessed using the links below. Too Many Networks TOO MANY NETWORKS iNTERNETWORKING STILL "TOO MANY" An Internet Protocol A COMMON LANGUAGE WHO SPEAKS iP? ETHERNET PACKET STRUCTURE IP PACKET STRUCTURE IP PACKET ENCAPSULATION The Internet Protocol IP -- "THE" INTERNET PROTOCOL INTERNET GROWTH