'Physical data link protocol' diaporamas de présentation

Physical Media

physical link: transmitted data bit propagates across link guided media: signals propagate in solid media: copper, fiber unguided media: signals propagate freely, e.g., radio. Twisted Pair (TP) two insulated copper wires Category 3: traditional phone wires, 10 Mbps ethernet

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15-441 Computer Networking

562 views • 46 slides

Chapter 5: The Data Link Layer

Our goals: understand principles behind data link layer services: error detection, correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer, flow control: done! instantiation and implementation of various link layer technologies. Overview:

399 views • 32 slides