PDU Layers http://www.youtube.com/watch?v=BplNYiUV5kU&feature=channel PDU Layers http://www.14thstory.com/videos/cisco/cisco_fundamentals_week1_pg6.html OSI Network Layers All -Application People - Presentation Seem - Session To - Transport (not transmission) Need - Network (routes, paths) Data - Data Link Processing - Physical Keywords Application layer - network applications, services, programs, peer-to-peer application Presentation layer - File: compression, format, and security Session - Transport - Reliable (tcp), connection oriented (tcp), end-to-end delivery, flow control Network - logical addressing IP, best path, path determination Data Link - Physical address, media access control (MAC), network access control, frame Physical - bits, media, medium |
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